CA2522342A1 - System and method for purging fuel from a fuel injector during start-up - Google Patents
System and method for purging fuel from a fuel injector during start-up Download PDFInfo
- Publication number
- CA2522342A1 CA2522342A1 CA002522342A CA2522342A CA2522342A1 CA 2522342 A1 CA2522342 A1 CA 2522342A1 CA 002522342 A CA002522342 A CA 002522342A CA 2522342 A CA2522342 A CA 2522342A CA 2522342 A1 CA2522342 A1 CA 2522342A1
- Authority
- CA
- Canada
- Prior art keywords
- fuel
- flow passage
- heat source
- capillary flow
- internal combustion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0025—Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
- F02D41/003—Adding fuel vapours, e.g. drawn from engine fuel reservoir
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating means
- F02M53/04—Injectors with heating, cooling, or thermally-insulating means
- F02M53/06—Injectors with heating, cooling, or thermally-insulating means with fuel-heating means, e.g. for vaporising
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D41/221—Safety or indicating devices for abnormal conditions relating to the failure of actuators or electrically driven elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/32—Controlling fuel injection of the low pressure type
- F02D41/34—Controlling fuel injection of the low pressure type with means for controlling injection timing or duration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M29/00—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture
- F02M29/04—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having screens, gratings, baffles or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/12—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
- F02M31/125—Fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/12—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
- F02M31/135—Fuel-air mixture
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/16—Other apparatus for heating fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/16—Other apparatus for heating fuel
- F02M31/18—Other apparatus for heating fuel to vaporise fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
- F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
- F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
- F02M45/08—Injectors peculiar thereto
- F02M45/086—Having more than one injection-valve controlling discharge orifices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
- F02M51/0625—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures
- F02M51/0664—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding
- F02M51/0671—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means characterised by arrangement of mobile armatures having a cylindrically or partly cylindrically shaped armature, e.g. entering the winding; having a plate-shaped or undulated armature entering the winding the armature having an elongated valve body attached thereto
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M57/00—Fuel-injectors combined or associated with other devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/08—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves opening in direction of fuel flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/166—Selection of particular materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
- F02M65/007—Cleaning
- F02M65/008—Cleaning of injectors only
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/023—Temperature of lubricating oil or working fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
- F02D2200/0406—Intake manifold pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/04—Engine intake system parameters
- F02D2200/0414—Air temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/01—Internal exhaust gas recirculation, i.e. wherein the residual exhaust gases are trapped in the cylinder or pushed back from the intake or the exhaust manifold into the combustion chamber without the use of additional passages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/04—Injectors peculiar thereto
- F02M69/042—Positioning of injectors with respect to engine, e.g. in the air intake conduit
- F02M69/044—Positioning of injectors with respect to engine, e.g. in the air intake conduit for injecting into the intake conduit downstream of an air throttle valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/30—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel characterised by means for facilitating the starting-up or idling of engines or by means for enriching fuel charge, e.g. below operational temperatures or upon high power demand of engines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
A fuel system for use in an internal combustion engine includes a plurality of fuel injectors, each injector including at least one capillary flow passage, the at least one capillary flow passage having an inlet end and an outlet end, a heat source arranged along the at least one capillary flow passage, the heat source operable to heat a liquid fuel in the at least one capillary flow passage to a level sufficient to convert at least a portion thereof from the liquid state to a vapor state, and a valve for metering fuel to the internal combustion engine, a controller to control the power supplied to the heat source of each of the plurality of fuel injectors to achieve a predetermined target temperature, a sensor for use in determining engine air flow and a sensor for measuring a value indicative of degree of engine warm-up of the internal combustion engine. According to a further aspect of the present invention, an initial liquid fuel pulse is purged from the fuel injector while the intake valve is in a substantially closed position so as to further minimize hydrocarbon emissions at startup.
Claims (16)
1. A method for controlling a fuel system and delivering fuel to an internal combustion engine, the fuel system including at least one fuel injector having at least one capillary flow passage, a heat source arranged along the at least one capillary flow passage, the heat source capable of heating the liquid fuel in the at least one capillary flow passage to a level sufficient to convert at least a portion thereof from the liquid state to a vapor state and at least one intake valve for selectively opening and closing a passageway from said at least one fuel injector to a combustion chamber within said internal combustion engine, the method comprising the steps of:
(a) measuring a value indicative of degree of engine warm-up;
(b) controlling power supplied to the heat source of the at least one fuel injector to achieve a predetermined target temperature, the predetermined target temperature operable to convert the portion of liquid fuel to the vapor state; and (c) simultaneously with step (b), injecting an initial fuel pulse from said at least one fuel injector while said at least one intake valve is in a substantially closed position.
(a) measuring a value indicative of degree of engine warm-up;
(b) controlling power supplied to the heat source of the at least one fuel injector to achieve a predetermined target temperature, the predetermined target temperature operable to convert the portion of liquid fuel to the vapor state; and (c) simultaneously with step (b), injecting an initial fuel pulse from said at least one fuel injector while said at least one intake valve is in a substantially closed position.
2. The method of claim 1 wherein the said at least one intake valve is in a completely closed position at the time said initial fuel pulse is injected.
3. The method of any preceding claim further comprising the step of returning to normal fuel injection timing after said initial fuel pulse and upon obtaining said predetermined temperature for said heat source.
4. The method of any preceding claim wherein said initial fuel pulse is injected against the backside of said at least one intake valve.
5. The method of any preceding claim wherein said fuel system comprises a plurality of fuel injectors each having at least one capillary flow passage.
6. The method of claim 1, 2, 3 or 4 wherein said fuel system further comprises at least one fuel injector not having at least one capillary flow passage.
7. A method for controlling a fuel system and delivering fuel to an internal combustion engine, the fuel system including at least one fuel injector having at least one capillary flow passage, a heat source arranged along the at least one capillary flow passage, the heat source capable of heating the liquid fuel in the at least one capillary flow passage to a level sufficient to convert at least a portion thereof from the liquid state to a vapor state and at least one intake valve for selectively opening and closing a passageway from said at least one fuel injector to a combustion chamber within said internal combustion engine, the method comprising the steps of:
(a) determining engine air flow;
(b) measuring a value indicative of degree of engine warm-up;
(c) determining a portion of liquid fuel to be converted to the vapor state by the at least one capillary flow passage, said determining step employing the values measured in steps (a)-(b);
(d) controlling power supplied to the heat source of the at least one fuel injector to achieve a predetermined target temperature, the predetermined target temperature operable to convert the portion of liquid fuel to the vapor state determined in step (c);
(e) simultaneously with step (d), injecting an initial fuel pulse from said at least one fuel injector while said at least one intake valve is in a substantially closed position; and (f) upon said heat source achieving said predetermined target temperature, delivering the fuel to a combustion chamber of the internal combustion engine;
wherein the portion of liquid fuel to be converted to the vapor state is determined to achieve minimal exhaust emissions.
(a) determining engine air flow;
(b) measuring a value indicative of degree of engine warm-up;
(c) determining a portion of liquid fuel to be converted to the vapor state by the at least one capillary flow passage, said determining step employing the values measured in steps (a)-(b);
(d) controlling power supplied to the heat source of the at least one fuel injector to achieve a predetermined target temperature, the predetermined target temperature operable to convert the portion of liquid fuel to the vapor state determined in step (c);
(e) simultaneously with step (d), injecting an initial fuel pulse from said at least one fuel injector while said at least one intake valve is in a substantially closed position; and (f) upon said heat source achieving said predetermined target temperature, delivering the fuel to a combustion chamber of the internal combustion engine;
wherein the portion of liquid fuel to be converted to the vapor state is determined to achieve minimal exhaust emissions.
8. ~The method of claim 7, wherein said step of determining engine air flow further comprises (i) measuring engine speed and (ii) measuring intake manifold pressure of the internal combustion engine.
9. ~The method of any preceding claim, wherein said step of controlling power supplied to the heat source of the at least one fuel injector includes the step of setting a resistance value, the resistance value relatable to the predetermined target temperature.
10. ~The method of any preceding claim, wherein said step of controlling power supplied to the heat source of the at least one fuel injector employs a binary power source.
11. ~The method of any preceding claim, wherein the delivery of vaporized fuel to the combustion chamber of the internal combustion engine is limited to a start-up and warm-up period of operation of the internal combustion engine.
12. ~The method of any preceding claim, further comprising delivering liquid fuel to the combustion chamber of the internal combustion engine when the internal combustion engine is at a fully warmed condition.
13. ~A fuel system for use in an internal combustion engine, comprising:~
(a) a plurality of fuel injectors, each injector including (i) at least one capillary flow passage said at least one capillary flow passage having an inlet and and an outlet end; (ii) a heat source arranged along the at least one capillary flow passage, said heat source operable to heat the liquid fuel in said at least one capillary flow passage to a level sufficient to convert at least a portion thereof from the liquid state to a vapor state, and (iii) a valve for metering fuel to the internal combustion engine, the valve located proximate to said outlet end of said at least one capillary flow passage;
(b) a controller to control the power supplied to said heat source of each of said plurality of fuel injectors to achieve a predetermined target temperature, the predetermined target temperature operable to convert the portion of liquid fuel to the vapor state;
(c) said controller being operable to inject an initial fuel pulse from said at least one fuel injector while said intake valve is in a substantially closed position prior to the said predetermined target temperature being reached.
(a) a plurality of fuel injectors, each injector including (i) at least one capillary flow passage said at least one capillary flow passage having an inlet and and an outlet end; (ii) a heat source arranged along the at least one capillary flow passage, said heat source operable to heat the liquid fuel in said at least one capillary flow passage to a level sufficient to convert at least a portion thereof from the liquid state to a vapor state, and (iii) a valve for metering fuel to the internal combustion engine, the valve located proximate to said outlet end of said at least one capillary flow passage;
(b) a controller to control the power supplied to said heat source of each of said plurality of fuel injectors to achieve a predetermined target temperature, the predetermined target temperature operable to convert the portion of liquid fuel to the vapor state;
(c) said controller being operable to inject an initial fuel pulse from said at least one fuel injector while said intake valve is in a substantially closed position prior to the said predetermined target temperature being reached.
14. The fuel system of claim 13 wherein the said intake valve is in a completely closed position at the time said initial fuel pulse is injected.
15. The fuel system of any preceding claim wherein said controller is operable to return to normal fuel injection timing after said initial fuel pulse and upon obtaining said predetermined temperature for said heat source.
16. The fuel system of any preceding claim wherein said initial fuel pulse is injected against the backside of said at least one intake valve.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/410,976 | 2003-04-10 | ||
US10/410,976 US6913005B2 (en) | 2002-03-22 | 2003-04-10 | System and methodology for purging fuel from a fuel injector during start-up |
PCT/US2004/011345 WO2004092570A2 (en) | 2003-04-10 | 2004-04-09 | System and method for purging fuel from a fuel injector during start-up |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2522342A1 true CA2522342A1 (en) | 2004-10-28 |
CA2522342C CA2522342C (en) | 2012-06-05 |
Family
ID=33298325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2522342A Expired - Fee Related CA2522342C (en) | 2003-04-10 | 2004-04-09 | System and method for purging fuel from a fuel injector during start-up |
Country Status (9)
Country | Link |
---|---|
US (1) | US6913005B2 (en) |
EP (1) | EP1611341A2 (en) |
JP (1) | JP4564002B2 (en) |
KR (1) | KR101088593B1 (en) |
CN (1) | CN100436806C (en) |
AU (1) | AU2004230521B2 (en) |
BR (1) | BRPI0409274A (en) |
CA (1) | CA2522342C (en) |
WO (1) | WO2004092570A2 (en) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7249596B2 (en) * | 2002-03-22 | 2007-07-31 | Philip Morris Usa Inc. | Fuel system for an internal combustion engine and method for controlling same |
WO2006052617A1 (en) * | 2004-11-03 | 2006-05-18 | Philip Morris Usa Inc. | High frequency vaporized fuel injector |
US7547002B2 (en) * | 2005-04-15 | 2009-06-16 | Delavan Inc | Integrated fuel injection and mixing systems for fuel reformers and methods of using the same |
WO2007036213A1 (en) * | 2005-09-27 | 2007-04-05 | Ip2H Ag | Combustion engine and injection device |
US7766251B2 (en) | 2005-12-22 | 2010-08-03 | Delavan Inc | Fuel injection and mixing systems and methods of using the same |
US8074895B2 (en) * | 2006-04-12 | 2011-12-13 | Delavan Inc | Fuel injection and mixing systems having piezoelectric elements and methods of using the same |
US20080230039A1 (en) * | 2007-03-22 | 2008-09-25 | Weiss Amanda M | Continuous liquid fuel vaporizer |
US8281570B2 (en) * | 2007-08-09 | 2012-10-09 | Caterpillar Inc. | Reducing agent injector having purge heater |
FR2920836B1 (en) * | 2007-09-07 | 2014-04-25 | Faurecia Sys Echappement | DEVICE FOR VAPORIZING A FUEL. |
US8884198B2 (en) * | 2010-01-22 | 2014-11-11 | Continental Automotive Systems, Inc. | Parametric temperature regulation of induction heated load |
US9243580B2 (en) * | 2011-12-07 | 2016-01-26 | Ford Global Technologies, Llc | Method and system for reducing soot formed by an engine |
US20130275025A1 (en) * | 2012-04-11 | 2013-10-17 | Delphi Technologies, Inc. | System and method for controlling a heated fuel injector in an internal combustion engine |
US8978364B2 (en) | 2012-05-07 | 2015-03-17 | Tenneco Automotive Operating Company Inc. | Reagent injector |
US8910884B2 (en) | 2012-05-10 | 2014-12-16 | Tenneco Automotive Operating Company Inc. | Coaxial flow injector |
JP6152685B2 (en) * | 2013-04-09 | 2017-06-28 | トヨタ自動車株式会社 | Fuel injection amount control device |
SE538375C2 (en) * | 2013-05-22 | 2016-05-31 | Scania Cv Ab | Method and apparatus for streamlining engine operation of a motor vehicle based on a change in at least one of the parameters exhaust temperature, coolant temperature and lubricant temperature |
US10012148B2 (en) * | 2014-05-23 | 2018-07-03 | General Electric Company | Method of purging a combustor |
US10397174B2 (en) * | 2015-11-12 | 2019-08-27 | International Business Machines Corporation | Message delivery in a message system |
US9797358B2 (en) * | 2015-12-03 | 2017-10-24 | GM Global Technology Operations LLC | System and method for controlling an engine to remove soot deposits from the fuel injectors of the engine |
CN109154271B (en) * | 2016-03-23 | 2021-09-28 | 奥比托澳大利亚有限公司 | Fuel injection system |
GB201611055D0 (en) * | 2016-06-24 | 2016-08-10 | Mclaren Automotive Ltd | Fuel heating |
CN112696268B (en) * | 2017-04-27 | 2022-07-26 | 康明斯公司 | Fuel injector cleaning systems, fluids, and methods |
US10683799B2 (en) | 2017-04-27 | 2020-06-16 | Cummins Inc. | Fuel injector cleaning system, fluid, and method |
CN109459243A (en) * | 2019-01-03 | 2019-03-12 | 大连理工大学 | A kind of change oil stream amount spray burning constant volume system of temperature-controllable |
Family Cites Families (50)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE482591C (en) | 1927-04-30 | 1930-02-03 | Werke Kiel Akt Ges Deutsche | Fuel injector for internal combustion engines |
US3999525A (en) | 1970-11-25 | 1976-12-28 | Robert Bosch G.M.B.H. | Apparatus for the cold starting and warming run of spark plug-ignited internal combustion engines |
US3716416A (en) | 1971-05-20 | 1973-02-13 | Engelhard Min & Chem | Fuel metering device for fuel cell |
DE2210250C2 (en) | 1972-03-03 | 1982-05-13 | Robert Bosch Gmbh, 7000 Stuttgart | Fuel injection device for cold starting and warming up externally ignited internal combustion engines |
GB1491882A (en) * | 1974-05-24 | 1977-11-16 | Yamaha Motor Co Ltd | Four stroke internal combustion engine |
IT1041819B (en) * | 1974-08-12 | 1980-01-10 | Yamaha Motor Co Ltd | METHOD FOR SET-UP OF A FOUR-STROKE INTERNAL COMBUSTION ENGINE |
US4344402A (en) | 1976-10-29 | 1982-08-17 | Child Francis W | Fuel supply system |
US4210103A (en) | 1977-04-04 | 1980-07-01 | Southwest Research Institute | Fuel system for and a method of operating a spark-ignited internal combustion engine |
US4403576A (en) | 1977-04-04 | 1983-09-13 | Southwest Research Institute | Fuel system for and a method of operating a spark-ignited internal combustion engine |
JPS5925113B2 (en) | 1978-12-27 | 1984-06-14 | 株式会社日本自動車部品総合研究所 | engine intake system |
US4223652A (en) | 1979-05-07 | 1980-09-23 | Budnicki Xavier B | Fuel delivery systems |
US4359025A (en) * | 1979-12-10 | 1982-11-16 | Stefan Zeliszkewycz | Continuous flow fuel injector for internal combustion engines |
US4458655A (en) | 1983-06-27 | 1984-07-10 | General Motors Corporation | Fuel injection nozzle with heated valve |
DE8522407U1 (en) | 1985-08-03 | 1985-09-19 | Feder, Georg, 8500 Nürnberg | Device for preheating diesel fuel |
US4870932A (en) | 1988-11-21 | 1989-10-03 | Chrysler Motors Corporation | Fuel injection heating system |
US4886032A (en) | 1988-11-22 | 1989-12-12 | Chrysler Motors Corporation | Fuel injector heating method |
US4955351A (en) | 1989-02-02 | 1990-09-11 | Lewis Alfred M | Vapor-accelerated combustion fuel system |
JPH05141329A (en) | 1991-11-15 | 1993-06-08 | Suzuki Motor Corp | Startup promotion control device for internal combustion engine |
US5195477A (en) | 1991-12-11 | 1993-03-23 | Walbro Corporation | Cold start fuel atomizer and process |
US5332046A (en) | 1991-12-13 | 1994-07-26 | Sugano Farm Machinery Mfg. Co., Ltd. | Agricultural machine with plow having changeable penetrating angle |
JPH05263726A (en) * | 1992-03-17 | 1993-10-12 | Aisan Ind Co Ltd | Fuel injection device |
US5226400A (en) | 1992-10-08 | 1993-07-13 | Microfuels, Inc. | Device for conversion of liquid fuel into fuel vapor and microscopic liquid droplets |
US5343848A (en) | 1992-10-08 | 1994-09-06 | Microfuels, Inc. | Electronic fuel injector control for rotary vacuum fuel conversion device |
US5331937A (en) | 1993-01-07 | 1994-07-26 | Ford Motor Company | Charge inlet system for internal combustion engine |
DE4438335A1 (en) | 1994-10-27 | 1996-05-02 | Bosch Gmbh Robert | Fuel injection device for an internal combustion engine |
US5529035A (en) | 1994-11-08 | 1996-06-25 | Hitachi America, Ltd. | Cold start fuel injector with heater |
US5482023A (en) | 1994-12-27 | 1996-01-09 | Hitachi America, Ltd., Research And Development Division | Cold start fuel control system |
US5524582A (en) | 1995-02-08 | 1996-06-11 | Kia Motors Corporation | Two-phase fuel emission system for spark ignited engine |
DE19535744A1 (en) * | 1995-09-26 | 1997-03-27 | Bosch Gmbh Robert | Fuel injection arrangement for an internal combustion engine and method for fuel injection |
DE19542317A1 (en) | 1995-11-14 | 1997-05-15 | Bosch Gmbh Robert | Fuel injection device for an internal combustion engine |
DE19546851A1 (en) | 1995-12-15 | 1997-06-19 | Bosch Gmbh Robert | Fuel injection device for an internal combustion engine |
US6102303A (en) | 1996-03-29 | 2000-08-15 | Siemens Automotive Corporation | Fuel injector with internal heater |
US5758826A (en) | 1996-03-29 | 1998-06-02 | Siemens Automotive Corporation | Fuel injector with internal heater |
US6189803B1 (en) | 1996-05-13 | 2001-02-20 | University Of Seville | Fuel injection nozzle and method of use |
US5894832A (en) | 1996-07-12 | 1999-04-20 | Hitachi America, Ltd., Research And Development Division | Cold start engine control apparatus and method |
CN1152075A (en) * | 1996-10-03 | 1997-06-18 | 邵再禹 | Fuel-heating injector for internal combustion engine |
US5813388A (en) | 1997-01-16 | 1998-09-29 | Ford Motor Company | Heated assembly for vaporization of fuel in an internal combustion engine |
US5836289A (en) | 1997-06-10 | 1998-11-17 | Southwest Research Institute | Porous element fuel vaporizer |
FR2770876B1 (en) | 1997-11-10 | 1999-12-24 | Renault | FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINE |
US6276347B1 (en) | 1998-09-25 | 2001-08-21 | Micro Coating Technologies, Inc. | Systems and methods for delivering atomized fluids |
US6332457B1 (en) * | 1999-02-26 | 2001-12-25 | Siemens Automotive Corporation | Method of using an internally heated tip injector to reduce hydrocarbon emissions during cold-start |
US6189518B1 (en) | 1999-04-29 | 2001-02-20 | Emission Controls Corp. | Fuel supply and cold start apparatus for an internal combustion engine |
US6109247A (en) | 1999-09-21 | 2000-08-29 | Hitachi America, Ltd. | Heater for a cold start fuel injector |
US6234153B1 (en) | 1999-10-11 | 2001-05-22 | Daimlerchrysler Corporation | Purge assisted fuel injection |
CN1102697C (en) * | 1999-11-22 | 2003-03-05 | 朴在升 | Fuel spray device |
KR200178341Y1 (en) * | 1999-11-22 | 2000-04-15 | 박재승 | Fuel minute injection apparatus |
CA2293134A1 (en) | 1999-12-24 | 2001-06-24 | Mobile Climate Control Inc. | Cold starting aid system for an internal combustion engine and method of start-up sequencing for same |
US6237576B1 (en) | 2000-01-25 | 2001-05-29 | Giuseppe Buccino | On demand/multi-fuel/vapor delivery system |
DE10115282B4 (en) * | 2000-03-29 | 2006-03-02 | Hitachi, Ltd. | Inlet air control device and internal combustion engine in which it is mounted |
US6913004B2 (en) * | 2002-03-22 | 2005-07-05 | Chrysalis Technologies Incorporated | Fuel system for an internal combustion engine and method for controlling same |
-
2003
- 2003-04-10 US US10/410,976 patent/US6913005B2/en not_active Expired - Lifetime
-
2004
- 2004-04-09 EP EP04750059A patent/EP1611341A2/en not_active Withdrawn
- 2004-04-09 AU AU2004230521A patent/AU2004230521B2/en not_active Ceased
- 2004-04-09 WO PCT/US2004/011345 patent/WO2004092570A2/en active Application Filing
- 2004-04-09 KR KR1020057019259A patent/KR101088593B1/en not_active IP Right Cessation
- 2004-04-09 CA CA2522342A patent/CA2522342C/en not_active Expired - Fee Related
- 2004-04-09 BR BRPI0409274-0A patent/BRPI0409274A/en not_active IP Right Cessation
- 2004-04-09 JP JP2006509970A patent/JP4564002B2/en not_active Expired - Fee Related
- 2004-04-09 CN CNB2004800148520A patent/CN100436806C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
WO2004092570A3 (en) | 2004-12-16 |
AU2004230521A1 (en) | 2004-10-28 |
KR20060006029A (en) | 2006-01-18 |
WO2004092570A2 (en) | 2004-10-28 |
JP4564002B2 (en) | 2010-10-20 |
BRPI0409274A (en) | 2006-04-11 |
CN100436806C (en) | 2008-11-26 |
EP1611341A2 (en) | 2006-01-04 |
AU2004230521B2 (en) | 2009-11-19 |
US20040000296A1 (en) | 2004-01-01 |
US6913005B2 (en) | 2005-07-05 |
CA2522342C (en) | 2012-06-05 |
KR101088593B1 (en) | 2011-12-06 |
JP2006522898A (en) | 2006-10-05 |
CN1798919A (en) | 2006-07-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2522342A1 (en) | System and method for purging fuel from a fuel injector during start-up | |
CA2504425A1 (en) | Fuel system for an internal combustion engine and method for controlling same | |
US7024301B1 (en) | Method and apparatus to control fuel metering in an internal combustion engine | |
RU2620466C2 (en) | Engine starting process (versions) and system | |
EP1864011B1 (en) | Fuel injection control device for engine | |
US7788019B2 (en) | Control device of internal combustion engine | |
RU2573410C2 (en) | Engine fuel supply process (versions) and engine system | |
US20040025837A1 (en) | Fuel delivery system for an internal combustion engine | |
US6718960B2 (en) | Diagnostic apparatus for gas mixture supply apparatus and diagnostic method thereof | |
US7043350B2 (en) | Fuel injection control apparatus for internal combustion engine and method thereof, and fuel injection valve | |
US6234153B1 (en) | Purge assisted fuel injection | |
RU2009132404A (en) | METHOD AND DEVICE FOR MANAGING THE GAS INJECTION SYSTEM IN THE INTERNAL COMBUSTION ENGINE OPERATING ON LIQUID AND GAS FUELS | |
US8439016B2 (en) | Liquefied petroleum gas engine assembly with flow control | |
KR19980018553A (en) | Control device and control method of internal combustion engine | |
US8534260B2 (en) | Fuel supply system | |
US6955161B2 (en) | Charge-injected internal combustion engine, and method of operating same | |
BR102013007132A2 (en) | Method for controlling a fuel injector, system configured to control an internal combustion engine, and controller | |
WO2004092558A3 (en) | Capillary heating control and fault detection system and methodology for fuel system in an internal combustion engine | |
EP1744038A1 (en) | Control system and method for supplying fuel vapour at start-up of an internal combustion engine | |
US20120227706A1 (en) | Internal combustion engine | |
SE527460C2 (en) | Method of operating an internal combustion engine | |
JP3876795B2 (en) | Fuel control device for internal combustion engine | |
US11401884B2 (en) | Methods and systems for controlling a fueling strategy for internal combustion engines | |
JP7218051B2 (en) | Control device for internal combustion engine | |
JP2002130022A (en) | Internal combustion engine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20160411 |