WO1994004813A1 - Vapourizer apparatus - Google Patents
Vapourizer apparatus Download PDFInfo
- Publication number
- WO1994004813A1 WO1994004813A1 PCT/AU1993/000401 AU9300401W WO9404813A1 WO 1994004813 A1 WO1994004813 A1 WO 1994004813A1 AU 9300401 W AU9300401 W AU 9300401W WO 9404813 A1 WO9404813 A1 WO 9404813A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vapourizer
- chamber
- fuel
- valve
- heat exchanger
- 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
- F02M31/04—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture
- F02M31/10—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating combustion-air or fuel-air mixture by hot liquids, e.g. lubricants or cooling water
-
- 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
- F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
- F02M21/0239—Pressure or flow regulators 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
- 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
- F02M21/06—Apparatus for de-liquefying, e.g. by heating
-
- 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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Definitions
- VAPOURIZER APPARATUS This invention relates to a vapourizer apparatus for fuel burning machines.
- Vaporizers for use in IC engines generally comprise a pneumatically operated valve variably operable as a function of depression of the gas supply line to the mixer. Valves of this nature are generally matched to the demand range of a particular IC engine. The wide range of fuel demands from large and small engines means that specific vaporizer designs must be produced for each engine type.
- this invention in one aspect resides broadly in vapourizer apparatus for a fuel burning machine and including:- a fuel receiving chamber having a fuel supply inlet and an outlet, the inlet being closable by inlet valve means responsive to the operation of the machine; a heat exchanger communicating with said outlet and having pressure limiting means, and adjustable demand valve means controlling flow through a delivery outlet of said heat exchanger in response to demand from said machine.
- the apparatus is adapted to the use of LPG fuel and accordingly the fuel receiving chamber is adapted to receive fuel which is a liquid under delivery conditions to the fuel receiving chamber, and wherein the heat exchanger comprises a vaporising chamber for the fuel.
- the apparatus will be useful in respect of CNG fuels where the high pressure differential between the stored gas and the delivery pressures required lead to a large drop in temperature as the gas expands.
- the inlet chamber is preferably configured to receive fuel as a compressed gas under delivery conditions and the heat exchanger is adapted to warm the gas.
- compressed fuel gas and liquefied fuel gas interchangeably.
- the term "fuel gas” should be taken to include all fuels which are gases or vaporisable to form gases.
- the fuel receiving chamber may take any suitable form and is generally as previously used in vaporizer apparatus.
- the fuel inlet valve means comprises a valve which may only be open whilst the machine is in order for operation.
- the valve means preferably comprises a valve operable by means of a solenoid connected to the ignition circuit (in the case of spark ignition engines) or alternator field connect circuit (particularly in the case of diesel engines).
- the valve may be under the control of centrifugal operating means adapted to open the valve in response to the engine turning over at start up.
- the fuel receiving chamber includes surge limiting means to prevent surges of fuel into the heat exchange means.
- the surge control means may take any suitable form generally determined by the fuel type.
- the surge control means may comprise a baffle or the like interposed in the fuel flow path. It has been determined that for the purposes of LPG and CNG fuels, surge control may be provided by means of a secondary chamber provided in the fuel receiving chamber and located about the outlet thereof, the passage of fuel to the outlet being preferably by means of a plurality of relatively small perforations in the wall of the secondary chamber.
- the heat exchange means may take any suitable form and again will generally be determined by the fuel type.
- the heat exchanger means may comprises a chamber having a relatively large interior surface area to volume ratio.
- the heat exchanger is formed of a material of relatively high thermal conductivity and may be provided with interior surface area increasing protuberances such as ribs or the like.
- a plurality of ribs be at least in part configured to alternately rise from the bottom of the chamber and depend from the top thereof to provide a gas/liquid separator for preventing liquid fuel from passing out of the heat exchanger, although gaseous fuel apparatus is similarly served by such ribs to promote turbulent flow and mixing in the gas stream.
- the heat exchanger may provide heat to the fuel by any suitable means.
- the heat exchanger exchanges heat between a fluid provided by said machine and said fuel.
- a fluid provided by said machine In the case of liquid cooled internal combustion engines fuelled by gas fuels such as LPG and CNG it is preferred to provide the heat exchanger means with a coolant jacket such that the fuel is heated off the engine coolant.
- the heat exchanger means may be heated by any suitable means including electrical heating or exhaust gas circulation heating, particularly where vaporization of less volatile fuels such as motor spirit or ethanol is required.
- the means for limiting the pressure within the apparatus may take any suitable form consistent with the function of providing a suitable pressure output from the heat exchanger to the demand valve.
- the pressure limiting means may comprise pressure sensing means such as a transducer adapted to control the opening of the supply line valve.
- the pressure limiting means include a valve disposed between the inlet chamber outlet and the heat exchanger such that the control is exercised substantially independently of the electrical system.
- the pressure limiting control valve be operable by means of a diaphragm directly responsive to pressure in the heat exchanger.
- the diaphragm is located in a regulator chamber and divides the chamber into a reference chamber held at a reference pressure and a working chamber in fluid communication with the heat exchange cavity, preferably in the vapour-only portion thereof after the preferred gas/liquid separation means.
- the reference pressure may be ambient atmospheric pressure whereby the pressure limiting control valve is operated as a function of the differential between the heat exchange cavity pressure and atmospheric pressure which can vary.
- the apparatus may compensate for high altitude operation by maintaining a lower absolute pressure in the heat exchanger at altitude.
- the reference pressure may be other than ambient to allow for non standard operation, particularly in forced-aspiration engines, wherein the reference pressure may be derived from the variable-pressure outflow from a turbocharger or supercharger.
- the adjustable demand valve means controlling flow through a delivery outlet of the heat exchanger in response to demand from said machine may take any form consistent with the function of supplying fuel gas to the machine at a relatively constant relative pressure compared to a reference pressure over the range of volumes dictated by varying machine demands.
- the adjustable demand valve means comprises mechanical demand valve means responsive to a depression in the machine supply line to increase flow as demand increases.
- the mechanical demand valve means may comprise a piston or diaphragm having a working surface in communication with the gas supply line to the machine, and a reference surface in communication with the reference pressure, operating a valve for delivering fuel gas from the heat exchanger to the machine supply line.
- a diaphragm is used in order to provide a large working surface at low mass and hence low inertia of the demand valve moving parts.
- Adjustability of the demand valve may be provided by any suitable means dictated by the selection of operation, with it being preferred both in the case of piston and diaphragm operated demand valves to use adjustable biasing means to vary the differential force required to provide a particular gas flow, thus providing for variability to suit the demand ranges of different machines.
- the reference pressure for the demand valve may be any suitable reference pressure determined by the particular machine in question.
- the reference pressure may take the form of a bleed from the pressure side of the radial or axial fan compressor.
- the reference pressure may be ambient atmospheric pressure or accumulator or direct pressure derived from the exhaust side of the engine.
- the vaporizer or heater preferably comprises an assembly comprising the liquid-fuel or compressed gas receiving chamber, the heat exchanger, and adjustable demand valve means.
- the assembly comprises alloy castings adapted to be sealable secured together in assembly to define the respective inlet, heat exchange and demand valve cavities.
- bypass valve means for delivering gas fuel directly to the supply line to the machine from the heat exchanger cavity.
- bypass valve means comprise a solenoid operated valve operable in response to operation of the ignition circuit or alternator field connect circuit of a rotary piston, reciprocating piston, spark ignition or diesel engine. It is envisaged that the bypass valve may also be operable in response to other inputs relating to start up or cold start.
- the bypass valve may be a multi-position valve adapted to fully open at start-up in response to the starter motor operation, and to partially close after starting, full closure of the valve being achieved after the engine or machine has reached operating temperature or the ignition or field connect circuit is broken.
- all solenoid valves or other operating means controlling gas flows in and within the apparatus are adapted to be normally-closed in operation such that in the event of failure of the motive power of the valves, the valves are closed or close.
- the primary pressure in the apparatus may drop to a point where the fuel mixture leans out, resulting in a loss of power under certain conditions of heavy demand.
- the apparatus may be provided with additional boost pressure means adapted to provide additional fuel flow at times of maximum demand.
- additional boost pressure means adapted to provide additional fuel flow at times of maximum demand.
- the biassing means includes means for sensing pressure developed dynamically as a result of high gas flows being delivered from the apparatus, the developed pressure being preferably directed to assist the preferred spring in maintaining the primary valve in its open configuration.
- FIG. 1 is a side view in cross section of apparatus in accordance with the present invention
- FIG. 2 is an alternate apparatus including a boost port feature.
- vaporizer apparatus having a housing assembly 10 formed of cast alloy.
- the housing assembly 10 encloses a fuel inlet chamber 11 adapted to receive fuel from a fuel supply line 12 via inlet solenoid valve 13.
- a cylindrical filter/baffle 14 Disposed within the fuel inlet chamber 11 is a cylindrical filter/baffle 14, the interior of which communicates with a primary delivery passage 15 leading out of the fuel inlet chamber 11.
- a valve member 16 Disposed within and concentric with the filter/baffle 14 is a valve member 16 adapted to close the primary delivery passage 15 and being biased towards its closed position by means of valve spring 17.
- a heat exchange chamber 20 comprising a primary heat exchange portion 21 and a delivery portion 22, divided by a gas liquid separation portion 23 characterized by interlinking upwardly and downwardly depending baffles 24.
- a conductive septum 25 Separated from the heat exchange chamber 20 by a conductive septum 25 is a coolant jacket 26 having a coolant inlet 27 and a coolant outlet 28 and being in circuit with the engine coolant circuit for the purposes of delivering heat to the heat exchange chamber 20.
- the septum 25 is increased in efficiency as a heat exchange surface by means of surface area increasing ridges 30.
- valve member 16 Operation of the valve member 16 in controlling flow through the primary delivery passage 15 is achieved by means of a primary diaphragm 31 which divides a chamber formed in the housing assembly 10 into a reference portion 32 maintained at ambient atmospheric pressure and a working portion 33 communicating with the delivery portion 22 of the heat exchange chamber 20 by means of aperture 34.
- the diaphragm 31 is partially supported by a diaphragm spring 35, the setting of the control parameters of the valve member 16 being achieved by the selection of the valve spring 17 and diaphragm spring 35 as well as providing adjustability to the compressed length of the valve spring 17 by adjustment through the top of the housing assembly 10 by means of adjustment means (not shown).
- the delivery portion 22 of the heat exchange chamber 20 is provided with a delivery passage 36 leading into a demand regulator chamber 37 which in turn has a relatively large bore supply line outlet 40 to the engine.
- a demand regulator diaphragm 41 divides the demand regulator chamber 37 into a working portion 42 in fluid communication with the delivery passage 36 and the supply line outlet 40 and a reference portion 43 vented to ambient atmospheric pressure through atmospheric vent 39.
- the demand regulator diaphragm 41 operates a primary demand valve operating lever 44 which in turn operates a secondary demand valve operating lever 45, regulation being effected by means of a delivery valve 46 operable by the secondary lever 45 and adapted to regulate the flow through the delivery passage 36.
- the performance of the demand regulator portion of the apparatus is adjustable by means of a variable length spring 47 supported in the housing assembly 10 and adjusted by means of a threaded plug 50.
- a start up/idling assembly 51 comprising a solenoid valve 52 interposed in a passage 53 directly linking for fluid communication the delivery portion 22 of the heat exchange chamber 20 and the working portion 42 of the demand regulator chamber 37.
- Solenoid valve 13 allows liquid gas to flow into the fuel inlet chamber 11 and thence to the interior of the filter/baffle 14. From the interior of the filter/baffle 14, liquid fuel decompresses through the primary delivery passage 15 and valve 16 into the primary heat exchanger portion 21 of the heat exchange chamber 20. Reduction of pressure between the inlet chamber 11 and the heat exchange chamber 20 converts the liquid fuel to a gas, the heat of vaporization of the fuel on phase change, or heat of expansion, as the case may be, being taken from the alloy housing material. The conversion of liquid fuel to gas or expansion of highly compressed gas absorbs a great deal of heat energy from the housing. To compensate for this loss of heat, the coolant jacket 26 is connected to the engines cooling system by means of coolant inlet 27 and coolant outlet 28 to provide a heating medium for the gas and to prevent freezing of the vaporizer apparatus.
- This gas is allowed to pass through the idle/start-up solenoid valve 52 directly into the working portion 42 of the demand regulator chamber 37 and thence to the engine to provide a rich mixture on start up under the positive supply pressure provided by vaporization or expansion of the liquid or compressed gas respectively, and to provide adequate fuel for idling when the demand operated apparatus is closed.
- This positive supply pressure substitutes for the choke for start and fuel pressure for idle speed provided in conventional motor spirit powered engines.
- boost pressure circuit for use during times of heavy engine demand and consequently heavy fuel demand, when the primary pressure in the apparatus may drop to a point where the fuel mixture leans out, resulting in a loss of power under certain conditions of heavy demand.
- the boost pressure means is adapted to provide additional fuel flow at such times of maximum demand.
- a boost port 61 is disposed in the housing adjacent the valve 46 and in the region opposite the fixed stop 60 such that the high velocity gas flow through the valve 46 at high demand impinges on the opening of the boost port 61.
- This increases the pressure in a boost passage 62 which is in fluid communication with the reference portion 32 (in this embodiment not referenced to atmospheric) below the primary diaphragm 31, thereby assisting the spring 35 in opening the primary control valve 16.
- the reference portion 32 in this embodiment not referenced to atmospheric
- Apparatus in accordance with the above embodiments have the advantages that they can be fitted to a wide range of engine sizes, the idle fuel and maximum fuel flows infinitely adjustable, and includes positive leakage protection ensuring maximum degree of safety.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Processing Of Solid Wastes (AREA)
- Confectionery (AREA)
- Processing Of Meat And Fish (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP93917439A EP0655105A4 (en) | 1992-08-13 | 1993-08-05 | Vapourizer apparatus. |
AU46902/93A AU4690293A (en) | 1992-08-13 | 1993-08-05 | Vapourizer apparatus |
JP6505668A JPH08500167A (en) | 1992-08-13 | 1993-08-05 | Vaporizer |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN92109492.2 | 1992-08-13 | ||
CN92109492A CN1082146A (en) | 1992-08-13 | 1992-08-13 | Gasifier for automobile engine |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994004813A1 true WO1994004813A1 (en) | 1994-03-03 |
Family
ID=4944179
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU1993/000401 WO1994004813A1 (en) | 1992-08-13 | 1993-08-05 | Vapourizer apparatus |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0655105A4 (en) |
JP (1) | JPH08500167A (en) |
CN (1) | CN1082146A (en) |
AU (1) | AU4690293A (en) |
CA (1) | CA2142364A1 (en) |
SG (1) | SG49725A1 (en) |
WO (1) | WO1994004813A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0672824A1 (en) * | 1994-03-14 | 1995-09-20 | Yamaha Hatsudoki Kabushiki Kaisha | Gas-fuelled engine |
FR2787515A1 (en) * | 1998-12-22 | 2000-06-23 | Renault | Gas regulation and heating unit in an IC engine fuel injection system, has fuel vapor output pressure automatically controlled by an electronic control unit |
FR2960601A1 (en) * | 2010-06-01 | 2011-12-02 | Peugeot Citroen Automobiles Sa | Module i.e. hybrid module, for use on combustion engine to transfer petrol from combustion engine to coolant circuit of car, has depressurization path partially and thermically connected to transfer path of cooling liquid |
US8726929B2 (en) | 2008-07-22 | 2014-05-20 | Honda Motor Co., Ltd | Gas engine regulator |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4575239B2 (en) * | 2005-05-19 | 2010-11-04 | 株式会社ニッキ | Vaporizer |
JP5084625B2 (en) * | 2008-06-11 | 2012-11-28 | 本田技研工業株式会社 | Gas engine fuel supply device |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2272341A (en) * | 1940-02-06 | 1942-02-10 | George L Holzapfel | Vaporizer and pressure regulator |
US2787286A (en) * | 1952-10-03 | 1957-04-02 | Donald J Hansen | Regulator for pressurized gaseous fuel |
GB826886A (en) * | 1957-12-03 | 1960-01-27 | Century Gas Equipment Company | Liquefied petroleum gas heat exchanger and pressure regulator |
US2952272A (en) * | 1953-04-29 | 1960-09-13 | Donald J Hansen | Gas regulator |
AU5013769A (en) * | 1968-02-17 | 1970-08-13 | Milbank & Keith Garages Limited | Means for supplying gas toan internal combustion petrol engine asan alternative fuel |
AU2574471A (en) * | 1971-02-22 | 1972-08-24 | Lng Services, Inc | Cryogenic fuel system for land vehicle power plant |
AU8873782A (en) * | 1982-01-14 | 1983-07-21 | Robert Bosch Gmbh | Liquefied petroleum gas injection means for an internal combustion engine |
GB2133078A (en) * | 1982-12-01 | 1984-07-18 | Orford John Reginald | Vaporising and supplying LPG |
DE3336021A1 (en) * | 1983-10-04 | 1985-04-18 | Linde Ag, 6200 Wiesbaden | Safety device for an internal combustion engine operated with fuel gas |
AU5748086A (en) * | 1985-05-24 | 1986-11-27 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Lpg fuel shutoff system for stopped engine |
US5146903A (en) * | 1991-10-25 | 1992-09-15 | Ohg, Inc. | Low height liquid fuel lock and converter to the gaseous phase |
-
1992
- 1992-08-13 CN CN92109492A patent/CN1082146A/en active Pending
-
1993
- 1993-08-05 JP JP6505668A patent/JPH08500167A/en active Pending
- 1993-08-05 AU AU46902/93A patent/AU4690293A/en not_active Abandoned
- 1993-08-05 WO PCT/AU1993/000401 patent/WO1994004813A1/en not_active Application Discontinuation
- 1993-08-05 EP EP93917439A patent/EP0655105A4/en not_active Withdrawn
- 1993-08-05 SG SG1996004407A patent/SG49725A1/en unknown
- 1993-08-05 CA CA002142364A patent/CA2142364A1/en not_active Abandoned
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2272341A (en) * | 1940-02-06 | 1942-02-10 | George L Holzapfel | Vaporizer and pressure regulator |
US2787286A (en) * | 1952-10-03 | 1957-04-02 | Donald J Hansen | Regulator for pressurized gaseous fuel |
US2952272A (en) * | 1953-04-29 | 1960-09-13 | Donald J Hansen | Gas regulator |
GB826886A (en) * | 1957-12-03 | 1960-01-27 | Century Gas Equipment Company | Liquefied petroleum gas heat exchanger and pressure regulator |
AU5013769A (en) * | 1968-02-17 | 1970-08-13 | Milbank & Keith Garages Limited | Means for supplying gas toan internal combustion petrol engine asan alternative fuel |
AU2574471A (en) * | 1971-02-22 | 1972-08-24 | Lng Services, Inc | Cryogenic fuel system for land vehicle power plant |
AU8873782A (en) * | 1982-01-14 | 1983-07-21 | Robert Bosch Gmbh | Liquefied petroleum gas injection means for an internal combustion engine |
GB2133078A (en) * | 1982-12-01 | 1984-07-18 | Orford John Reginald | Vaporising and supplying LPG |
DE3336021A1 (en) * | 1983-10-04 | 1985-04-18 | Linde Ag, 6200 Wiesbaden | Safety device for an internal combustion engine operated with fuel gas |
AU5748086A (en) * | 1985-05-24 | 1986-11-27 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Lpg fuel shutoff system for stopped engine |
US5146903A (en) * | 1991-10-25 | 1992-09-15 | Ohg, Inc. | Low height liquid fuel lock and converter to the gaseous phase |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN, M-552, page 27; & JP,A,61 185 667 (YAMAHA MOTOR CO LTD) 19 August 1986 (19.08.86), whole Abstract. * |
See also references of EP0655105A4 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0672824A1 (en) * | 1994-03-14 | 1995-09-20 | Yamaha Hatsudoki Kabushiki Kaisha | Gas-fuelled engine |
US5755203A (en) * | 1994-03-14 | 1998-05-26 | Yamaha Hatsudoki Kabushiki Kaisha | Charge-forming system for gaseous fueled engine |
FR2787515A1 (en) * | 1998-12-22 | 2000-06-23 | Renault | Gas regulation and heating unit in an IC engine fuel injection system, has fuel vapor output pressure automatically controlled by an electronic control unit |
WO2000037790A1 (en) * | 1998-12-22 | 2000-06-29 | Renault | Gas regulator and heater in an internal combustion engine injection system |
US8726929B2 (en) | 2008-07-22 | 2014-05-20 | Honda Motor Co., Ltd | Gas engine regulator |
FR2960601A1 (en) * | 2010-06-01 | 2011-12-02 | Peugeot Citroen Automobiles Sa | Module i.e. hybrid module, for use on combustion engine to transfer petrol from combustion engine to coolant circuit of car, has depressurization path partially and thermically connected to transfer path of cooling liquid |
Also Published As
Publication number | Publication date |
---|---|
CN1082146A (en) | 1994-02-16 |
SG49725A1 (en) | 1998-06-15 |
EP0655105A4 (en) | 1996-10-16 |
AU4690293A (en) | 1994-03-15 |
CA2142364A1 (en) | 1994-03-03 |
JPH08500167A (en) | 1996-01-09 |
EP0655105A1 (en) | 1995-05-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4499885A (en) | Supplemental system for fuel agency | |
US4292807A (en) | Variable geometry turbosupercharger system for internal combustion engine | |
EP2312140B1 (en) | A gas fuel admission system for a gas fired engine | |
CA1116419A (en) | Bleed valve control circuit | |
CA2585988C (en) | Method and group for the lpg feeding of an internal combustion engine | |
US4541397A (en) | Gaseous fuel carburetion system | |
EP0064373A1 (en) | Gaseous fuel carburetion | |
JPS5848737B2 (en) | Control device for turbine turbocharger | |
US4068639A (en) | Automobile engine economizer | |
US4519341A (en) | Heated water-alcohol injection system for carbureted internal combustion engines | |
US5386698A (en) | Control system and method for governing turbocharged internal combustion engines | |
US6708674B2 (en) | Propane assist converter and regulator | |
US3722481A (en) | Internal combustion engine fuel supply apparatus | |
US5442920A (en) | Altitude compensation for spark-ignited turbocharged internal combustion engines | |
US4485792A (en) | Method for supplying an internal combustion engine with liquefied petroleum gas and apparatus for performing the method | |
WO1994004813A1 (en) | Vapourizer apparatus | |
US4471616A (en) | Device for regulating the air supply of an internal combustion engine | |
US4287717A (en) | Turbocharged internal combustion engine | |
US4249502A (en) | Method and apparatus for generating and delivering gaseous fuel vapor to an internal combustion engine | |
US4520785A (en) | Gaseous fuel supply and control system for an internal combustion engine | |
US3789812A (en) | Air/fuel mixing system controlled by temperature activated mechanism for internal combustion engines | |
US4671240A (en) | Fuel injection system for an internal combustion engine | |
GB1595060A (en) | Air heater system | |
US4019323A (en) | Controller for turbocharger system for internal combustion engines | |
JPS58124050A (en) | Injector for liquefied gas |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AT AU BB BG BR BY CA CH CZ DE DK ES FI GB HU JP KP KR KZ LK LU MG MN MW NL NO NZ PL PT RO RU SD SE SK UA US VN |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN ML MR NE SN TD TG |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2142364 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 254674 Country of ref document: NZ Ref document number: 1993917439 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1993917439 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
ENP | Entry into the national phase |
Ref document number: 1995 387764 Country of ref document: US Date of ref document: 19950804 Kind code of ref document: A |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1993917439 Country of ref document: EP |