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EP1283348A2 - Dispositif de fractionnement de carburant - Google Patents

Dispositif de fractionnement de carburant Download PDF

Info

Publication number
EP1283348A2
EP1283348A2 EP02015908A EP02015908A EP1283348A2 EP 1283348 A2 EP1283348 A2 EP 1283348A2 EP 02015908 A EP02015908 A EP 02015908A EP 02015908 A EP02015908 A EP 02015908A EP 1283348 A2 EP1283348 A2 EP 1283348A2
Authority
EP
European Patent Office
Prior art keywords
fuel
pump
housing
separator
fractionating device
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
EP02015908A
Other languages
German (de)
English (en)
Other versions
EP1283348A3 (fr
EP1283348B1 (fr
Inventor
Ralf Brünemann
Eberhard Holder
Roland Kemmler
Martin Matt
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
Daimler AG
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 DaimlerChrysler AG, Daimler AG filed Critical DaimlerChrysler AG
Publication of EP1283348A2 publication Critical patent/EP1283348A2/fr
Publication of EP1283348A3 publication Critical patent/EP1283348A3/fr
Application granted granted Critical
Publication of EP1283348B1 publication Critical patent/EP1283348B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02M33/00—Other apparatus for treating combustion-air, fuel or 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
    • F02M1/00—Carburettors with means for facilitating engine's starting or its idling below operational temperatures
    • F02M1/16—Other means for enriching fuel-air mixture during starting; Priming cups; using different fuels for starting and normal operation
    • F02M1/165—Vaporizing light fractions from the fuel and condensing them for use during starting

Definitions

  • the invention relates to a fuel fractionating device for separating a low-boiling fuel fraction a liquid fuel of an internal combustion engine according to the in the preamble of claim 1 specified features.
  • Such a fuel fractionating device is known from DE 199 27 177 C1 known.
  • This fuel fractionator has an exposed one connected to the fuel tank Line system with a pump, a heat exchanger, a Separator and a memory on, the pump from a Gas collection chamber in the fuel tank via a suction line Air-fuel fraction mixture sucks and over a the heat exchanger having leading pressure line to the separator.
  • the fuel fractionator requires a considerable amount Space.
  • the invention is based on the object, a fuel fractionator of the type mentioned in the introduction, that it requires a much smaller footprint and also in the working mode a reduced noise behavior shows.
  • annular Gap between the housing and the pump and the pump drive created the opportunity in the housing more To accommodate functional elements, such as air manifold, fuel rail and heat exchangers.
  • a fuel fractionating device 1 consists essentially from a pump 2 and one formed by an electric motor Pump drive 3, a separator 4 and a memory 5 for low boiling fuel.
  • the four functional elements have cylindrical shape, are arranged coaxially to each other and Together with a pump 2 and the electric motor. 3 by far surrounding and sleeve-like housing 6th a structural unit.
  • the housing 6 results with the outer separator 4 and memory 5 an elongated slim design.
  • the housing 6 In the upper end area the housing 6 is a mounting flange 7, about the the unit to a fuel tank 8 in this is mounted vertically protruding.
  • This fuel tank 8 corresponds to the usual fuel tank of an internal combustion engine.
  • annular gap 9 formed in the lower separator close to the housing 6 an annular fuel rail 10 and a staggered are provided for this lying air distributor 11.
  • the electric motor 3 is directly surrounded by the fuel rail 10, while the air distributor 11 rests on the housing 6 on the inside.
  • Fuel rail 10 and air manifold 11 are small Openings for the separate supply of fuel and air Provided. It form small bubbles, which together with the fuel at a arranged in the space 9 heat exchanger 12 flow past and on the surface of the heat exchanger Warm up 12. The fuel-air mixture continues to flow past cooling fins 13, which protrude from the air pump 2. The fuel-air mixture is further heated. in this connection The air bubbles accumulate with low-boiling fuel components on.
  • the housing 6 has at its sleeve part 6a openings 15, the above the maximum fuel level in the fuel tank 9 are arranged at the same height to liquid residual fuel to be able to drain to the outside.
  • the mixture flows through a line connection 20 the heat exchanger 12 and is thereby cooled, wherein the fuel vapor condenses.
  • the air is transported the condensate via a line 21 into the separator 4 for the separation of air and condensate.
  • the air comes out of the Separator 4 in a separator connecting the air distributor Line 22, which contains a pressure valve 23. The air happens this pressure valve 23, relaxes to ambient pressure and then returns to the air manifold 11 in the space 9th
  • a compensation line 24 connects the upper part of the intermediate space 9 with the vapor space 25 in the fuel tank 8. This is ensured that the air pump 2 at the beginning of Fractionation even with completely filled fuel tank 8 does not suck in liquid fuel.
  • the amount of transported to the fuel fractionator Fuel is preferred by the fuel return of the Main fuel supply of the vehicle diverted and can regulated depending on the temperature of the fuel return become.
  • the air-fuel mixture additionally from above the heat exchanger 12 an electric heater 26 are heated, which on the housing. 6 is fixed and protrudes into the intermediate space 9.
  • the low boiling fuel fraction will start and Warming the internal combustion engine supplied.
  • the required Injection pressure can in the form of a pressure pad by the Air pump 2 are generated or by means of an additional Fuel pump.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP02015908A 2001-08-10 2002-07-17 Dispositif de fractionnement de carburant Expired - Lifetime EP1283348B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10139527A DE10139527A1 (de) 2001-08-10 2001-08-10 Kraftstofffraktioniereinrichtung
DE10139527 2002-08-10

Publications (3)

Publication Number Publication Date
EP1283348A2 true EP1283348A2 (fr) 2003-02-12
EP1283348A3 EP1283348A3 (fr) 2007-06-13
EP1283348B1 EP1283348B1 (fr) 2008-06-04

Family

ID=7695154

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02015908A Expired - Lifetime EP1283348B1 (fr) 2001-08-10 2002-07-17 Dispositif de fractionnement de carburant

Country Status (4)

Country Link
US (1) US6691684B1 (fr)
EP (1) EP1283348B1 (fr)
JP (1) JP4180858B2 (fr)
DE (2) DE10139527A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106368764A (zh) * 2015-07-21 2017-02-01 通用汽车环球科技运作有限责任公司 用于从发动机油去除燃料的系统和方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6486798B2 (ja) * 2015-08-28 2019-03-20 本田技研工業株式会社 燃料貯留装置
US9776624B1 (en) * 2016-05-04 2017-10-03 Ford Global Technologies, Llc Method and system for engine control

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19927177C1 (de) 1999-06-15 2000-07-13 Daimler Chrysler Ag Kraftstofffraktioniereinrichtung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2865355A (en) * 1955-12-14 1958-12-23 California Research Corp Internal combustion engine fuel system
US3794000A (en) * 1971-09-17 1974-02-26 Ethyl Corp Fuel system for separating volatile fuel from gasoline
US4876989A (en) * 1988-05-10 1989-10-31 Technology Development Associates, Inc. Enhanced performance of alcohol fueled engine during cold conditions
US5019120A (en) * 1989-02-02 1991-05-28 Lewis Alfred M Vapor-accelerated combustion fuel system
US5546908A (en) * 1994-01-07 1996-08-20 Stokes; Richard A. Plural fuel system for internal combustion engine
DE19927176C1 (de) * 1999-06-15 2000-11-02 Daimler Chrysler Ag Kraftstoffversorgungsanlage

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19927177C1 (de) 1999-06-15 2000-07-13 Daimler Chrysler Ag Kraftstofffraktioniereinrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106368764A (zh) * 2015-07-21 2017-02-01 通用汽车环球科技运作有限责任公司 用于从发动机油去除燃料的系统和方法
CN106368764B (zh) * 2015-07-21 2019-05-07 通用汽车环球科技运作有限责任公司 用于从发动机油去除燃料的系统和方法

Also Published As

Publication number Publication date
EP1283348A3 (fr) 2007-06-13
DE10139527A1 (de) 2003-02-20
JP2003074437A (ja) 2003-03-12
US6691684B1 (en) 2004-02-17
US20040025806A1 (en) 2004-02-12
EP1283348B1 (fr) 2008-06-04
DE50212343D1 (de) 2008-07-17
JP4180858B2 (ja) 2008-11-12

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