CA2330724A1 - Gaseous fuel injector having high heat tolerance - Google Patents

Gaseous fuel injector having high heat tolerance Download PDF

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Publication number
CA2330724A1
CA2330724A1 CA002330724A CA2330724A CA2330724A1 CA 2330724 A1 CA2330724 A1 CA 2330724A1 CA 002330724 A CA002330724 A CA 002330724A CA 2330724 A CA2330724 A CA 2330724A CA 2330724 A1 CA2330724 A1 CA 2330724A1
Authority
CA
Canada
Prior art keywords
valve
gaseous fuel
fuel injector
oil
cartridge
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
Application number
CA002330724A
Other languages
French (fr)
Other versions
CA2330724C (en
Inventor
Roger C. Popp
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Woodward Inc
Original Assignee
Woodward Governor Company
Roger C. Popp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Woodward Governor Company, Roger C. Popp filed Critical Woodward Governor Company
Priority to CA002483413A priority Critical patent/CA2483413C/en
Publication of CA2330724A1 publication Critical patent/CA2330724A1/en
Application granted granted Critical
Publication of CA2330724C publication Critical patent/CA2330724C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0248—Injectors
    • F02M21/0257—Details of the valve closing elements, e.g. valve seats, stems or arrangement of flow passages
    • F02M21/026—Lift valves, i.e. stem operated valves
    • F02M21/0269—Outwardly opening valves, e.g. poppet valves
    • 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
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0248—Injectors
    • F02M21/0251—Details of actuators therefor
    • 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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/04—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure using fluid, other than fuel, for injection-valve actuation
    • F02M47/046—Fluid pressure acting on injection-valve in the period of injection to open it
    • 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
    • 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
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

Abstract

A high pressure gaseous fuel injector for injecting natural gas or other gaseous fuels at high pressures (eg. 300 to 700 psig more or less) into combustion engines for improved efficiency, better performance and reduced environmental emissions.
The fuel injector is powered by hydraulic signals from an electrohydraulic valve.
The fuel injector includes an outer cartridge housing and a universal valve cartridge mounted therein. The cartridge comprises an activator body and a valve body secured together, and the valve body has a gas valve slidable therein. The stroke of the valve is adjustable by controlling the size of shims in the valve body assembly, thereby providing a universal valve cartridge that can be easily adapted to differing fueling requirements for models and sizes of engines. The valve body includes a spring chamber between upper and lower valve guides. The valve body also includes cross-holes to allow cool gaseous fuel to successively pulsate into and out of the spring chamber and thereby cool the exposed portion of the valve between guides, preventing heating of the dynamic gas seal located in the upper guide. An unsealed small clearance between the actuating piston and its bore in the actuator body allows controlled leakage of oil. The leakage of oil lubricates metal to metal contact between the upper guide and the valve and lubricates the dynamic gas seal. Gaseous fuel leakage into the leaked oil is tolerated and any combined oil/gaseous fuel is removed to an external location for separation. Spring washers are used to urge the valve assembly insert against a metal O-ring supported by the outer cartridge body.
CA002330724A 2000-01-12 2001-01-10 Gaseous fuel injector having high heat tolerance Expired - Lifetime CA2330724C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002483413A CA2483413C (en) 2000-01-12 2001-01-10 Gaseous fuel injector having high heat tolerance

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/481,150 US6360963B2 (en) 2000-01-12 2000-01-12 Gaseous fuel injector having high heat tolerance
US09/481,150 2000-01-12

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA002483413A Division CA2483413C (en) 2000-01-12 2001-01-10 Gaseous fuel injector having high heat tolerance

Publications (2)

Publication Number Publication Date
CA2330724A1 true CA2330724A1 (en) 2001-07-12
CA2330724C CA2330724C (en) 2005-06-14

Family

ID=23910833

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002330724A Expired - Lifetime CA2330724C (en) 2000-01-12 2001-01-10 Gaseous fuel injector having high heat tolerance

Country Status (2)

Country Link
US (2) US6360963B2 (en)
CA (1) CA2330724C (en)

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DE10020867B4 (en) * 2000-04-28 2006-07-06 Robert Bosch Gmbh Common rail injector
WO2003085253A1 (en) * 2002-04-04 2003-10-16 Siemens Aktiengesellschaft Injection valve
US7108206B2 (en) * 2002-12-04 2006-09-19 Caterpillar Inc. Valve assembly and fuel injector using same
US7451942B2 (en) * 2003-10-20 2008-11-18 Digicon, Inc. Direct fuel injector assembly for a compressible natural gas engine
DE602004003896T2 (en) * 2004-01-29 2007-05-03 Siemens Vdo Automotive S.P.A., Fauglia Liquid injection valve and its production process
DE602004003901T2 (en) * 2004-02-27 2007-05-03 Siemens Vdo Automotive S.P.A., Fauglia Liquid injection valve
DE602004030419D1 (en) * 2004-02-27 2011-01-20 Continental Automotive Italy S P A liquid injector
JP2006144774A (en) * 2004-10-18 2006-06-08 Denso Corp Gaseous fuel injector
ATE355458T1 (en) * 2004-11-12 2006-03-15 Fiat Ricerche INJECTION VALVE FOR INTERNATIONAL ENGINE
DE102006027780A1 (en) * 2006-06-16 2007-12-20 Robert Bosch Gmbh fuel injector
CA2740331C (en) * 2008-10-13 2017-08-01 Sanofi-Aventis Deutschland Gmbh Drug delivery device and method of manufacturing a drug delivery device
US8205643B2 (en) * 2008-10-16 2012-06-26 Woodward, Inc. Multi-tubular fluid transfer conduit
US8201754B2 (en) 2009-12-03 2012-06-19 Caterpillar Inc. Fluid injector with thermal load control
US8469004B2 (en) * 2010-09-14 2013-06-25 Ford Global Technologies, Llc Beveled dampening element for a fuel injector
ITPC20110013A1 (en) * 2011-06-09 2012-12-10 Parietti Pietro Poliauto DEVICE FOR FEEDING MOTORS WITH A GASEOUS FUEL, IN PARTICULAR OF VEHICLE ENGINES
US8817483B2 (en) * 2011-08-01 2014-08-26 Honeywell International Inc. Connector assembly for a sensor
CN102967611B (en) * 2012-11-12 2014-10-29 中国石油大学(北京) Loading sleeve used for industrial CT (computed tomography) experiment table
US9447740B2 (en) * 2014-06-23 2016-09-20 Caterpillar Inc. Engine system having hydraulically actuated gas injector
CA2857396A1 (en) * 2014-07-18 2016-01-18 Westport Power Inc. Gaseous fuel injector
US10006664B2 (en) * 2015-05-11 2018-06-26 Emerson Electric Co. Slow opening and fast closing gas valves and related methods
CN104832337B (en) * 2015-05-14 2016-01-27 山东大学 The diesel oil ignited cylinder inner high voltage of trace directly sprays sparger heat load control system and method
DE102015211971A1 (en) * 2015-06-26 2016-12-29 Robert Bosch Gmbh Gas injector with improved tightness
EP3187758B1 (en) * 2016-01-04 2019-04-03 Danfoss A/S Capsule for a valve and valve
DE102016002228B4 (en) * 2016-02-25 2017-12-14 L'orange Gmbh fuel injector
US10865714B2 (en) 2018-03-22 2020-12-15 Woodward. Inc. Gas turbine engine fuel injector
DE102019103428A1 (en) * 2019-02-12 2020-08-13 Woodward L'orange Gmbh Actuation of several gas needles with a 3/2 pilot valve
US11326569B2 (en) * 2019-11-25 2022-05-10 Achates Power, Inc. Fuel injector mounting assembly for an opposed-piston engine
CN112343739A (en) * 2020-11-26 2021-02-09 中船动力研究院有限公司 Gas injection valve
WO2023147653A1 (en) * 2022-02-01 2023-08-10 Westport Fuel Systems Canada Inc. Apparatus and method for pressure regulation of a gaseous fluid

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US4157012A (en) 1977-03-24 1979-06-05 General Electric Company Gaseous fuel delivery system
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Also Published As

Publication number Publication date
CA2330724C (en) 2005-06-14
US6360963B2 (en) 2002-03-26
US20010007338A1 (en) 2001-07-12
US20020027170A1 (en) 2002-03-07
US6425532B1 (en) 2002-07-30

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