WO2007106930A1 - Liquid or liquified gas vaporization system - Google Patents
Liquid or liquified gas vaporization system Download PDFInfo
- Publication number
- WO2007106930A1 WO2007106930A1 PCT/AU2007/000330 AU2007000330W WO2007106930A1 WO 2007106930 A1 WO2007106930 A1 WO 2007106930A1 AU 2007000330 W AU2007000330 W AU 2007000330W WO 2007106930 A1 WO2007106930 A1 WO 2007106930A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquid
- vaporization device
- acceleration
- heated surface
- wells
- Prior art date
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
- 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
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
- F23D11/44—Preheating devices; Vaporising devices
- F23D11/441—Vaporising devices incorporated with burners
-
- 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
Definitions
- This invention relates to vaporization of liquids or liquefied gases. There are many applications where vaporization of liquids or liquefied gases is necessary for functional systems to work.
- I provide a hot surface and force liquid by means of constraining devices in conjunction with the heated surface to maintain thermal contact with the surface until the liquid has vaporized.
- I provide a hot surface and force liquid, by means of applying an acceleration to the liquid combined with constraining devices in conjunction with the heated surface, to maintain thermal contact with the surface until the liquid has vaporized.
- this is achieved by placing axially concentric V-grooves in a housing cylinder, maintaining the surface at a sufficiently high temperature, and delivering the liquid into the V-grooves with a given velocity so that a tangential velocity is developed by the liquid.
- the tangential velocity gives rise to radial inertial acceleration which combined with the V-groove suppresses liquid dispersion as well as droplet formation and forces the liquid to maintain physical contact with the hot surface.
- the maximum heat transfer rate and therefore the maximum vapour production rate occurs in the nucleate boiling regime at a temperature difference of about 30 degrees C. Above the Leidenfrost point the temperature difference would need to be greater then 1000 degrees C. to equal the maximum heat transfer rate produced in the nucleate boiling regime. Most other liquids exhibit similar phenomena as water which has been used here as an example.
- a sphere contacts a surface in the ideal at a point and for a deformable liquid drop under an applied force the contact area will be greater then a point but much smaller than the wetted area of the same volume of liquid if the wetting phenomena were able to proceed.
- radial inertial acceleration centrifugal acceleration
- the radial acceleration gives rise to a force being exerted by the fluid onto the surface and vice versa.
- the instantaneous magnitude of the radial acceleration is a function of the tangential velocity and the radius of curvature at any instant.
- the curved surface that imparts the radial acceleration to the liquid can be any geometric shape that inhibits axial spread of the liquid i.e. imparts an axial acceleration on the liquid as well.
- a concentric V- groove is one example. Such a configuration forces the fluid back onto itself in three orthogonal directions thereby suppressing drop formation and ensuring physical contact with the hot surface.
- the applied radial inertial acceleration produces in the liquid a radial pressure, a hoop pressure and the sides of the V-groove producing an opposing axial pressure. Liquid cannot escape from the groove it is caught in an acceleration well, a liquid trap. Vapor can be buoyed through the liquid in the direction of diminishing pressure i.e. towards the origin of the radius of curvature of the surface, and as well pumped along the groove walls. Once the vapor is clear of the liquid it is free to expand or be entrained in ambient gas.
- Non-wetting surfaces can be used in the same way as wetting surfaces.
- the surface finish can be from extremely smooth to any suitable finish and be of the base material or coated with a suitable material such as Teflon.
- Liquid can be delivered to the invention by any suitable means and can be continuous or intermittent and can include one or several intermittent liquid jets.
- a V-groove has been used to describe the acceleration well or liquid trap geometry however it is understood that the curved surface that imparts the radial and axial acceleration to the liquid can be any geometric shape capable of causing an acceleration well or liquid trap.
- One or many acceleration wells can be deployed depending on the vaporization load.
- the grooves or surfaces can be concentric or otherwise.
- the V-groove or the curved surface that imparts the radial and axial acceleration to the liquid and produces the acceleration well or liquid trap can have a helical path or trajectory or any other suitable path or trajectory, can be open ended or closed, have a lead in or out or can begin or terminate smoothly or abruptly.
- the depth of the V- groove or the curved surface can be any suitable depth.
- the acceleration well or liquid trap may be provided for by forming raised profiles on the heated surface.
- the radius of curvature of the acceleration well or liquid trap can be constant or varying, continuous or piecewise, small or large along the path or trajectory of the acceleration well or liquid trap.
- the geometry of the surfaces may well be variable over time as in an enforced shape change, may well have shape discontinuities imposed on the surfaces as required and may change shape with changes in temperature.
- the heated surface can be heated by any suitable means.
- the temperature difference between the surface and the liquid need not approach or be greater than Leidenfrost point temperature differences.
- the acceleration wells may well be used to constrain the liquid at some predefined position in a system where diffusing molecules of the liquid enter a stationary or moving gas.
- the geometric configuration of the shapes can be any configuration that reflects the liquid into the gas flow stream allowing the liquid to become entrained in the gas flow stream.
- the shapes could be one or many, co-reflective or directed in any suitable direction. This could be used in the fueling system of internal combustion engines as one example of an application.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200780018424.9A CN101449049B (en) | 2006-03-21 | 2007-03-20 | Liquid or liquified gas vaporization system |
EP07718579A EP2004981A4 (en) | 2006-03-21 | 2007-03-20 | Liquid or liquified gas vaporization system |
AU2007229314A AU2007229314A1 (en) | 2006-03-21 | 2007-03-20 | Liquid or liquified gas vaporization system |
US12/293,848 US20090205587A1 (en) | 2006-03-21 | 2007-03-20 | Liquid or liquified gas vaporization system |
JP2009500661A JP2009530532A (en) | 2006-03-21 | 2007-03-20 | Liquid or liquefied gas vaporization system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2006901442 | 2006-03-21 | ||
AU2006901442A AU2006901442A0 (en) | 2006-03-21 | Liquid vapourization system |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007106930A1 true WO2007106930A1 (en) | 2007-09-27 |
Family
ID=38521936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU2007/000330 WO2007106930A1 (en) | 2006-03-21 | 2007-03-20 | Liquid or liquified gas vaporization system |
Country Status (7)
Country | Link |
---|---|
US (1) | US20090205587A1 (en) |
EP (1) | EP2004981A4 (en) |
JP (1) | JP2009530532A (en) |
KR (1) | KR20090005021A (en) |
CN (1) | CN101449049B (en) |
AU (1) | AU2007229314A1 (en) |
WO (1) | WO2007106930A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012168776A3 (en) * | 2011-06-07 | 2013-04-25 | Toyota Jidosha Kabushiki Kaisha | Fuel supply system and fuel supply method for internal combustion engine |
EP2599988A1 (en) * | 2010-07-27 | 2013-06-05 | Toyota Jidosha Kabushiki Kaisha | Fuel supply device |
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RU2045677C1 (en) * | 1992-11-10 | 1995-10-10 | Александр Иванович Назаров | Supply system for heat engine |
EP0693623A1 (en) * | 1994-07-22 | 1996-01-24 | Texas Instruments Incorporated | Fuel heater for heating liquid fuel under pressure for an injection engine |
JPH08200168A (en) * | 1995-01-24 | 1996-08-06 | Toyota Autom Loom Works Ltd | Fuel gasifying device, fuel feeding device, and fuel gasifying method |
JPH08296819A (en) * | 1995-04-26 | 1996-11-12 | Dainichi Kogyo Kk | Vaporizer |
US5894832A (en) * | 1996-07-12 | 1999-04-20 | Hitachi America, Ltd., Research And Development Division | Cold start engine control apparatus and method |
US6089218A (en) * | 1995-12-13 | 2000-07-18 | Tokai Corporation | Vaporization acceleration device for high-calorie gas appliance |
US6820864B2 (en) * | 2002-01-15 | 2004-11-23 | Hitachi, Ltd. | Fuel vaporization promoting apparatus and fuel carburetion accelerator |
CH696212A5 (en) * | 2003-06-04 | 2007-02-15 | Toby Ag | Evaporator burner is for liquid fuel and incorporates evaporation chamber in which is rotating atomizer disk |
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2007
- 2007-03-20 AU AU2007229314A patent/AU2007229314A1/en not_active Abandoned
- 2007-03-20 JP JP2009500661A patent/JP2009530532A/en active Pending
- 2007-03-20 US US12/293,848 patent/US20090205587A1/en not_active Abandoned
- 2007-03-20 KR KR20087025655A patent/KR20090005021A/en not_active Application Discontinuation
- 2007-03-20 CN CN200780018424.9A patent/CN101449049B/en not_active Expired - Fee Related
- 2007-03-20 EP EP07718579A patent/EP2004981A4/en not_active Withdrawn
- 2007-03-20 WO PCT/AU2007/000330 patent/WO2007106930A1/en active Application Filing
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DE2356229A1 (en) * | 1973-11-10 | 1975-05-22 | Shigetake Tamai | Atomizer nozzle for multi-purpose uses - has frustroconical part with half-helically grooved oblique face and close cover forming gas channels |
US4128390A (en) * | 1976-06-09 | 1978-12-05 | Mitsubishi Denki Kabushiki Kaisha | Fuel vaporizer and burner unit for space heater |
DE3237662A1 (en) * | 1982-10-11 | 1984-04-12 | Herbert 2000 Hamburg Ahlgrimm | Method and device for improving the combustion of a mixture in an internal combustion engine |
DE4230054A1 (en) * | 1991-06-28 | 1994-03-10 | Man Nutzfahrzeuge Ag | Multihole atomizer nozzle for fuel - is also used for liquids other than fuel |
RU2045677C1 (en) * | 1992-11-10 | 1995-10-10 | Александр Иванович Назаров | Supply system for heat engine |
EP0693623A1 (en) * | 1994-07-22 | 1996-01-24 | Texas Instruments Incorporated | Fuel heater for heating liquid fuel under pressure for an injection engine |
JPH08200168A (en) * | 1995-01-24 | 1996-08-06 | Toyota Autom Loom Works Ltd | Fuel gasifying device, fuel feeding device, and fuel gasifying method |
JPH08296819A (en) * | 1995-04-26 | 1996-11-12 | Dainichi Kogyo Kk | Vaporizer |
US6089218A (en) * | 1995-12-13 | 2000-07-18 | Tokai Corporation | Vaporization acceleration device for high-calorie gas appliance |
US5894832A (en) * | 1996-07-12 | 1999-04-20 | Hitachi America, Ltd., Research And Development Division | Cold start engine control apparatus and method |
US6820864B2 (en) * | 2002-01-15 | 2004-11-23 | Hitachi, Ltd. | Fuel vaporization promoting apparatus and fuel carburetion accelerator |
CH696212A5 (en) * | 2003-06-04 | 2007-02-15 | Toby Ag | Evaporator burner is for liquid fuel and incorporates evaporation chamber in which is rotating atomizer disk |
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Title |
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See also references of EP2004981A4 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2599988A1 (en) * | 2010-07-27 | 2013-06-05 | Toyota Jidosha Kabushiki Kaisha | Fuel supply device |
EP2599988A4 (en) * | 2010-07-27 | 2014-06-11 | Toyota Motor Co Ltd | Fuel supply device |
WO2012168776A3 (en) * | 2011-06-07 | 2013-04-25 | Toyota Jidosha Kabushiki Kaisha | Fuel supply system and fuel supply method for internal combustion engine |
CN103597191A (en) * | 2011-06-07 | 2014-02-19 | 丰田自动车株式会社 | Fuel supply system and fuel supply method for internal combustion engine |
CN103597191B (en) * | 2011-06-07 | 2016-06-08 | 丰田自动车株式会社 | Fuel feed system and fuel feeding method for explosive motor |
US9518543B2 (en) | 2011-06-07 | 2016-12-13 | Toyota Jidosha Kabushiki Kaisha | Fuel supply system and fuel supply method for internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
JP2009530532A (en) | 2009-08-27 |
US20090205587A1 (en) | 2009-08-20 |
EP2004981A4 (en) | 2012-02-01 |
EP2004981A1 (en) | 2008-12-24 |
AU2007229314A1 (en) | 2007-09-27 |
CN101449049A (en) | 2009-06-03 |
CN101449049B (en) | 2015-11-25 |
KR20090005021A (en) | 2009-01-12 |
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