[go: up one dir, main page]

WO2002103194A1 - Dispositif de vaporisation de carburant - Google Patents

Dispositif de vaporisation de carburant Download PDF

Info

Publication number
WO2002103194A1
WO2002103194A1 PCT/IB2002/002180 IB0202180W WO02103194A1 WO 2002103194 A1 WO2002103194 A1 WO 2002103194A1 IB 0202180 W IB0202180 W IB 0202180W WO 02103194 A1 WO02103194 A1 WO 02103194A1
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
vaporisation
side wall
liquid
fuel
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.)
Ceased
Application number
PCT/IB2002/002180
Other languages
English (en)
Inventor
Terence Sydney Playdon
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.)
KRUGER ARTHUR MANFRED
Original Assignee
KRUGER ARTHUR MANFRED
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 KRUGER ARTHUR MANFRED filed Critical KRUGER ARTHUR MANFRED
Publication of WO2002103194A1 publication Critical patent/WO2002103194A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • 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
    • F02M29/06—Apparatus for re-atomising condensed fuel or homogenising fuel-air mixture having screens, gratings, baffles or the like generating whirling motion of mixture
    • 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 a fuel vaporisation device.
  • a device for vaporising a liquid typically a liquid fuel
  • the device including a vaporisation chamber having an inlet for introducing the liquid into the chamber and an outlet for removing the liquid in a vapour phase from the chamber; heating means for heating an internal vaporisation surface of the chamber; and impingement means for causing the liquid introduced into the chamber to impinge with the heated vaporisation surface in the chamber.
  • the impingement means is a centrifugal force.
  • the centrifugal force may be caused by a vortex of gas within the vaporisation chamber.
  • the vaporisation surface is roughened.
  • the vaporisation chamber is defined by a cylindrical side wall, typically a tubular side wall, having first and second ends which are closed, with the inner surface of the side wall providing the vaporisation surface.
  • it is the side wall of the chamber that is heated by the heating means.
  • the inlet extends through the side wall of the vaporisation chamber and is defined by an inlet pipe which is oriented tangentially relative to the side wall.
  • the outlet is typically defined by an outlet pipe which extends into the vaporisation chamber, through the first closed end thereof, and which is oriented in parallel with a longitudinal axis of the tubular side wall.
  • a cyclone device for vaporising a liquid, typically a liquid fuel
  • the cyclone device including: a vaporisation chamber, the chamber including a cylindrical, preferably a tubular, an inner vaporisation side wall having a first end which is closed and a second end which is also closed;
  • an inlet pipe extending through the side wall of the vaporisation chamber, the inlet pipe being oriented tangentially relative to the side wall of the vaporisation chamber;
  • heating means for heating the side wall of the vaporisation chamber.
  • the inner vaporisation side wall is roughened.
  • the heating means is arranged to heat the side wall of the vaporisation chamber to a temperature which is greater than the boiling point of the liquid.
  • the heating means may be an electrical heater such as a band heater or an induction heater that heats the side wall of the vaporisation chamber, but is preferably provided by a jacket that surrounds the side wail and is heated by a hot gas, typically an exhaust gas from an internal combustion engine.
  • a hot gas typically an exhaust gas from an internal combustion engine.
  • a method of vaporising a liquid typically a liquid fuel, in a cyclone device including a vaporisation chamber defined by a tubular inner vaporisation side wall, an inlet into the chamber, and an outlet out of the chamber, the method including the steps of entraining droplets of the liquid in an air stream entering the chamber, forcing the air stream into the chamber through the inlet and out of the outlet, and thereby causing a vortex therein so that the liquid droplets are forced to impinge with the inner vaporisation side wall of the chamber by a centrifugal force caused by the vortex, and heating the inner vaporisation side wall to a temperature greater than the boiling point of the liquid, so that the liquid droplets vaporise on the side wall and leave the chamber, via the outlet, in the vapour phase.
  • Figure 1 is a cross-sectional view of a fuel vaporisation device of the invention
  • Figure 2 is a cross-sectional view of the device shown in Figure 1 on the line 2-2;
  • Figure 3 is pictorial view of the device shown in Figures 1 and 2 attached to an internal combustion engine.
  • This invention relates to a device for vaporising a liquid fuel, typically a composite hydrocarbon fuel such as petroleum or diesel or an alcohol such as methanol.
  • the device is designed primarily for the vaporisation of fuel for an internal combustion engine, but may be used in any situation when it is necessary to obtain the vaporisation of a liquid.
  • the fuel vaporisation device is designed to be situated between the intake manifold of an internal combustion engine and a fuel supply source.
  • the fuel supply source may be a carburetor, a fuel injection system, or any system that delivers fuel.
  • the fuel vaporisation device 10 includes a vaporisation chamber 12 which is defined by a tubular side wall 14 which is closed at a first end thereof by a plate 16 and at a second end thereof by a plate 18.
  • the second plate 18 is depicted as being planar, but may be conical in shape.
  • An inlet pipe 20 extends through the side wall 14 to form an inlet 22 into the chamber 12. It will be noted that the inlet pipe 20 is oriented tangentially relative to the side wall 14.
  • An outlet pipe 24 extends through the first closed end 16 into the vaporisation chamber 12, forming an outlet 26 from the vaporisation chamber 12. It will be noted that the outlet pipe 24 is oriented parallel with a longitudinal axis A of the side wall 14.
  • the outlet pipe 24 is located centrally within the vaporisation chamber 12.
  • the vaporisation chamber 12 is, for all intents and purposes, a cyclone device.
  • the outlet pipe 24 should be one third of the diameter of the diameter of the vaporisation chamber 12.
  • the height of the outlet pipe 24 above the closed end 18 of the chamber 12 should be equal to the radius 2 /diameter of the outlet pipe 24.
  • the vaporisation chamber 12 is surrounded by heating means in the form of a heating jacket 28 which is arranged to heat the side wall 14, and also the end plates 16 and 18 thereof.
  • the heating jacket 28 is provided with two gas inlets 32 and 34 and a gas outlet 30.
  • the vaporisation chamber 12 and jacket 28 may be made of any material that can withstand high temperatures and conduct heat. Typical materials include brass, copper, stainless steel and aluminium.
  • the fuel vaporisation device 10 may be connected to the cylinder head 37 of a four cylinder internal combustion engine 38.
  • the device 10 has four hot gas inlets 32, 33, 34 and 35 which extend into the heating jacket 28 and which are connected to exhaust pipes 40 and 42 from the engine 38.
  • Hot exhaust gas from the engine 38 passes from the exhaust pipes 40 and 42 into the heating jacket 28 through the inlets 32, 33, 34 and 35, and out through the exhaust gas outlet 30.
  • the hot exhaust gas heats the side wall 14 and end plates 16 and 18 of the vaporisation chamber 12 to a temperature above the boiling point of the fuel, in the case of petroleum fuel, to a minimum temperature of 204°C, thus heating the inner surface of the side wall 14 which becomes a vaporisation surface.
  • the inlet pipe 20 of the device 10 is connected to an air intake and a source of fuel, in the form of a carburetor 46.
  • the outlet pipe 24 of the vaporisation chamber 12 is connected to an inlet manifold 44 of the engine 38.
  • the suction of the inlet manifold 44 sucks air containing entrained fuel droplets (indicated by stippling) from the carburetor 46 via the inlet pipe 20, through the inlet 22, into the vaporisation chamber 12 and out through the outlet pipe 24.
  • the air 36 that is sucked into the vaporisation chamber 12 forms a vortex within the vaporisation chamber 12, which in turn places a centrifugal force on the fuel droplets.
  • the fuel droplets which are heavier than the air, are caused to move outwardly and impinge with the inner side wall 14 of the vaporisation chamber 12.
  • the side wall 14 is heated by the exhaust gases from the engine 38, thus heating the inner surface of the side wall 14 which becomes an inner vaporisation surface.
  • the intimate contact between the fuel droplets and inner heated vaporisation side wall 14 causes vaporisation of the fuel droplets.
  • the vaporised fuel droplets which are lighter than the air and thus minimally subjected to the centrifugal force within the vaporisation chamber 12, are sucked into the outlet pipe 24 with the air 36, and exit from the vaporisation chamber in the vapour phase. From the outlet pipe 24, the vaporised fuel/air mixture passes through the manifold 44 and then enters the cylinder head 37 of the internal combustion engine 38.
  • the inner heated side wall 14 on which the fuel droplets vaporise is roughened.
  • the surface may be roughened to a profile depth of about 20 microns by shot blasting or chemically etching the surface.
  • the roughened inner surface may be formed by a composite inorganic coating, or a sodium silicate coating.
  • the roughened surface provides a greater surface for the vaporisation of the fuel, to ensure better vaporisation of the liquid.
  • the fuel vaporisation device above may be used for a variety of fuels. It is however important that the side wall 14 of the vaporisation chamber 12 is heated to a temperature above the boiling point of the fuel. In the case where the fuel is petroleum, the side wall 14 should be heated above 204°C, preferably about 210°C. In the case where the fuel is diesel, the vaporisation chamber 12 should be heated to above 270°C preferably about 300°C.
  • the device is sufficiently small to be fitted to combustion engines in motor vehicles with transverse engines, and can be oriented vertically, horizontally within the engine compartment. Also, because there are no moving parts, the device is not subject to mechanical wear. Furthermore, due to the size of the vaporisation chamber 12, and the brief period of time that the fuel remains within the chamber, there is little chance of explosion, even if the temperature within the vaporisation chamber exceeds the boiling temperature of the higher boiling fuel fractions.
  • the tubular side wall 14 has a length of 147 mm and a diameter of 92 mm, and is made from brass plate, having a thickness of 1mm.
  • the inlet pipe 20 has a diameter of 30mm and is made from steel, with a 1 mm thickness.
  • the outlet pipe 24 is located 7mm above the second plate 18 of the vaporisation chamber 12, is made from steel, and has a thickness of 1 mm. Instead of being surrounded by a heating jacket 28 which is heated by exhaust gases, in this example, the heating jacket is an electric band heater.
  • a glass observation port is affixed at the second plate end 18.
  • the device 10 was connected via the inlet pipe 20 to the outlet pipe of the carburetor of an internal combustion engine.
  • the outlet pipe 24 was attached to a vacuum device and a vacuum was applied.
  • the tubular wall 14 has a length of 120mm and a diameter of 90mm, and is made from copper, having a thickness of 0,5mm.
  • the inlet pipe 20 has a diameter of 30mm and is made from stainless steel, with a 2mm thickness.
  • the outlet pipe 24 is located 7mm above the second plate 18 of the vaporisation chamber 12, and is made from stainless steel, and has a thickness of 2mm.
  • the device 10 is surrounded by a heating jacket 28 which has a diameter of 130mm.
  • Four exhaust gas inlet pipes which have a diameter of 30mm and which are made from steel extend into the heating jacket 28.
  • the exhaust gas inlet pipes are to be connected, to the exhaust ports of an internal combustion engine for supplying heated exhaust gas into the heating jacket 28.
  • An exhaust gas outlet pipe 30 from the heating jacket 28 is made from steel, and with a diameter of 50mm, for attachment to the exhaust outlet system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Spray-Type Burners (AREA)

Abstract

L'invention concerne un dispositif de vaporisation de carburant (10). Ce dispositif de vaporisation (10) comprend une chambre (12), une entrée de carburant (20) et une sortie de carburant (24). La paroi (14) de la chambre (12) est chauffée au moyen d'une gaine chauffante (28). En cours d'utilisation, le dispositif peut être fixé à un moteur à combustion interne. De l'air renfermant des gouttelettes de carburant pénètre dans ce dispositif (10) par l'intermédiaire de l'entrée (20). Un tourbillon formé à l'intérieur du dispositif (10) entraîne les gouttelettes de carburant contre la paroi latérale chauffée (14), d'où une vaporisation du carburant. Un mélange air-carburant vaporisé est alors acheminé de façon appropriée vers la tubulure d'admission du moteur à combustion interne en vue d'améliorer le rendement du moteur.
PCT/IB2002/002180 2001-06-15 2002-06-13 Dispositif de vaporisation de carburant Ceased WO2002103194A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA200104927 2001-06-15
ZA2001/4927 2001-06-15

Publications (1)

Publication Number Publication Date
WO2002103194A1 true WO2002103194A1 (fr) 2002-12-27

Family

ID=25589200

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2002/002180 Ceased WO2002103194A1 (fr) 2001-06-15 2002-06-13 Dispositif de vaporisation de carburant

Country Status (1)

Country Link
WO (1) WO2002103194A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008049147A1 (fr) * 2006-10-24 2008-05-02 David Littlewood Johnson Système de distribution de carburant et d'admission pour moteur à piston
RU2342557C1 (ru) * 2007-05-10 2008-12-27 Открытое акционерное общество "Завод им. В.А. Дегтярева" Устройство для предварительного подогрева дизельного топлива
CN101832204A (zh) * 2010-04-08 2010-09-15 李永耀 燃油蒸发器
CN103104390A (zh) * 2013-01-23 2013-05-15 成都高彪科技有限公司 发动机燃油瞬间汽化供油系统及控制方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2287588A1 (fr) * 1974-10-09 1976-05-07 Elf Union Procede et dispositif permettant d'ameliorer la carburation des moteurs a explosion
GB1531271A (en) * 1974-10-09 1978-11-08 Elf Union Device including a cyclone for carburetted fuel vapourisation for internal combustion engines
US4318386A (en) * 1979-09-20 1982-03-09 Automotive Engine Associates Vortex fuel air mixer
EP0051364A2 (fr) * 1980-10-24 1982-05-12 Frank Graeme Benson Walker Mélange air-combustible employant une chambre de tourbillonnement
US4580544A (en) * 1983-11-07 1986-04-08 Walker Frank G B Fuel/air mixing using swirl chamber
FR2676093A1 (fr) * 1991-05-03 1992-11-06 Morel Marcel Systeme d'alimentation polycarburant anti-pollution pour moteur a combustion interne.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2287588A1 (fr) * 1974-10-09 1976-05-07 Elf Union Procede et dispositif permettant d'ameliorer la carburation des moteurs a explosion
GB1531271A (en) * 1974-10-09 1978-11-08 Elf Union Device including a cyclone for carburetted fuel vapourisation for internal combustion engines
US4318386A (en) * 1979-09-20 1982-03-09 Automotive Engine Associates Vortex fuel air mixer
EP0051364A2 (fr) * 1980-10-24 1982-05-12 Frank Graeme Benson Walker Mélange air-combustible employant une chambre de tourbillonnement
US4580544A (en) * 1983-11-07 1986-04-08 Walker Frank G B Fuel/air mixing using swirl chamber
FR2676093A1 (fr) * 1991-05-03 1992-11-06 Morel Marcel Systeme d'alimentation polycarburant anti-pollution pour moteur a combustion interne.

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008049147A1 (fr) * 2006-10-24 2008-05-02 David Littlewood Johnson Système de distribution de carburant et d'admission pour moteur à piston
GB2454621A (en) * 2006-10-24 2009-05-13 David Littlewood Johnson Induction and fuel delivery system for piston engine
RU2445504C2 (ru) * 2006-10-24 2012-03-20 Энвайротек Лимитед Устройство (варианты) и способ впрыска и подачи топлива для поршневого двигателя
RU2342557C1 (ru) * 2007-05-10 2008-12-27 Открытое акционерное общество "Завод им. В.А. Дегтярева" Устройство для предварительного подогрева дизельного топлива
CN101832204A (zh) * 2010-04-08 2010-09-15 李永耀 燃油蒸发器
CN103104390A (zh) * 2013-01-23 2013-05-15 成都高彪科技有限公司 发动机燃油瞬间汽化供油系统及控制方法

Similar Documents

Publication Publication Date Title
CN1078928C (zh) 往复活塞式内燃火花点火柴油发动机
EP0834039B1 (fr) Convertisseur d'energie utilisant un chauffage de tourbillon de plasma implosif
EP0208205B1 (fr) Appareil vaporisateur de combustible pour brûleur
KR980002663A (ko) 내연 기관의 배기 가스 후처리를 위한 장치
JP2002513884A (ja) 多種燃料エンジン
MXPA03010818A (es) Sistema de suministro de combustible.
US4020811A (en) Recirculating fuel feed and vaporization apparatus and method
WO2002103194A1 (fr) Dispositif de vaporisation de carburant
US8397699B2 (en) Fuel pretreater
US6202633B1 (en) Molecular reactor for fuel induction
WO2010068284A1 (fr) Carburateur à brouillard
CN1328497C (zh) 用于柴油机冷启动的辅助预混燃烧装置
US4438750A (en) Device for fuel delivery to internal combustion engine with vaporization of injected fuel
US4355622A (en) Air/fuel mixture heating device for internal combustion engine
RU2070655C1 (ru) Газификатор топлива
RU2028489C1 (ru) Испарительный карбюратор для двигателя внутреннего сгорания
EA005887B1 (ru) Система подачи топлива для двигателя внутреннего сгорания
JPH074618A (ja) 蒸発式バーナ
US1730641A (en) Method and apparatus for introducing explosive mixtures into internalcombustion engines
CN2758507Y (zh) 用于柴油机冷启动的辅助预混燃烧装置
JPS6118084B2 (fr)
US3547416A (en) Fuel converter
RU2051290C1 (ru) Способ питания двигателя внутреннего сгорания и устройство для подогрева топливовоздушной смеси двигателя внутреннего сгорания
SU1273626A2 (ru) Устройство питани топливовоздушной смесью двигател внутреннего сгорани
RU9933U1 (ru) Горелочное устройство для жидкого топлива

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP