EP0656470A1 - Vorrichtung zur Begrenzung der Emission von verflüchtigten Kohlenwasserstoffen für ein Fahrzeug mit Brennkraftmaschine - Google Patents

Vorrichtung zur Begrenzung der Emission von verflüchtigten Kohlenwasserstoffen für ein Fahrzeug mit Brennkraftmaschine Download PDF

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Publication number
EP0656470A1
EP0656470A1 EP94118316A EP94118316A EP0656470A1 EP 0656470 A1 EP0656470 A1 EP 0656470A1 EP 94118316 A EP94118316 A EP 94118316A EP 94118316 A EP94118316 A EP 94118316A EP 0656470 A1 EP0656470 A1 EP 0656470A1
Authority
EP
European Patent Office
Prior art keywords
fuel
tank
filter
combustion engine
vapors
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.)
Withdrawn
Application number
EP94118316A
Other languages
English (en)
French (fr)
Inventor
Robert Deleris
Wojtek Zolnowski
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.)
Continental Automotive France SAS
Original Assignee
Siemens Automotive SA
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 Siemens Automotive SA filed Critical Siemens Automotive SA
Publication of EP0656470A1 publication Critical patent/EP0656470A1/de
Withdrawn legal-status Critical Current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
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
    • F02M25/089—Layout of the fuel vapour installation
    • 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
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
    • F02M25/0854—Details of the absorption canister

Definitions

  • the present invention relates to a device for limiting the emission of hydrocarbon vapors from the fuel supply system of a vehicle equipped with an internal combustion engine as well as to a filter of these vapors used in this device. .
  • the present invention therefore aims to provide a device for limiting emissions of hydrocarbon vapors which advantageously has the advantage of previous devices without having the disadvantages, and which is economical, both for its realization and for its operation.
  • a device for limiting hydrocarbon emissions for a vehicle equipped with an internal combustion engine comprising a fuel supply circuit comprising a tank, a supply line for an injector rail and a line for returning fuel to the tank, and a fuel vapor recovery circuit comprising an activated carbon filter connected by steam lines to the tank and engine intake manifold.
  • the line for returning fuel to the tank passes through a heat exchanger situated in the filter, said exchanger being adapted to simultaneously, on the one hand, cool the fuel returning to the tank in order to limit its evaporation, and on the other hand, reheat the activated carbon of the filter in order to facilitate the desorption of the fuel vapors.
  • a filter for recovering fuel vapors from a vehicle equipped with an internal combustion engine, comprising a heat exchanger intended to be inserted in the circuit for returning fuel to the tank.
  • FIG. 1 represents a schematic view of the device according to the invention.
  • the device comprises a fuel tank 1 in which a pump 11 is installed.
  • a pump 11 is installed outside the tank, in series with the latter.
  • This pump supplies fuel under a predetermined pressure to an injector manifold 2 provided with a pressure regulator 21 via a supply line 6.
  • the injector manifold and its pressure regulator 21 are mounted on the cylinder head of an internal combustion engine (not shown).
  • the fuel flow rate provided by the pump 11 is greater than the flow rate consumed by the engine.
  • part of the fuel arriving at the regulator 21 is returned to the tank via a return line 7.
  • the fuel flowing in the supply line 6, the regulator 21 and the return line 7 remains in the immediate vicinity of the engine and is therefore warmed by it.
  • the circuit used by the fuel vapors has also been shown in dotted lines in this figure.
  • These generated in the tank 1, for example under the effect of prolonged parking of the vehicle in the sun, are guided to a filter 4 by a pipe 41.
  • the pipe 41 opens into the filter inside the active part of the filter consisting of 40 carbon granules. Vapors are then trapped in the coal, while the gas exchange allowing the balancing of the pressures between the tank 1 and the external atmosphere is carried out by air freed from the hydrocarbon vapors going to the vent pipe free 43.
  • the filter 4 When the engine is running, the filter 4 is regenerated by connecting it to the vacuum which prevails in the intake manifold 3 of the engine by a line 42 and a valve 5 then open. Air is then sucked through the conduit 43, sweeps the carbon 40 of the filter and is charged with fuel vapors, causing significant cooling of the coal linked to the evaporation of the fuel which was trapped there.
  • the filter 4 It comprises a heat exchanger 8 embedded in the carbon constituting the active part of the filter.
  • This exchanger could advantageously be produced in the form of a tube provided with fins snaking inside the carbon, or in any other form adapted to allow a heat exchange between a hot fluid circulating in the exchanger and the surrounding carbon.
  • the return line 7 for hot fuel from the engine is connected to the inlet of this exchanger 8, the outlet of which is connected to the tank 1 via a line 7 '.
  • the object of the invention is thus achieved, thanks to this simultaneous double effect, and this is particularly economical. This eliminates the need for an electric heater in the filter, as well as its associated control system. Likewise, the device according to the invention operates without requiring additional energy.
  • the invention is not limited to the embodiment described and shown which has been given only by way of example.
  • the exchanger 8 could be, for manufacturing reasons, around the active part of the filter and not inside.
  • a filter using a means other than carbon to trap fuel vapors, for example synthetic fibers could be adapted to receive an exchanger without departing from the spirit of the invention.

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)
EP94118316A 1993-12-01 1994-11-21 Vorrichtung zur Begrenzung der Emission von verflüchtigten Kohlenwasserstoffen für ein Fahrzeug mit Brennkraftmaschine Withdrawn EP0656470A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9314495A FR2713285B1 (fr) 1993-12-01 1993-12-01 Dispositif de limitation des émissions d'hydrocarbures par évaporation pour un véhicule équipé d'un moteur à combustion interne.
FR9314495 1993-12-01

Publications (1)

Publication Number Publication Date
EP0656470A1 true EP0656470A1 (de) 1995-06-07

Family

ID=9453515

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94118316A Withdrawn EP0656470A1 (de) 1993-12-01 1994-11-21 Vorrichtung zur Begrenzung der Emission von verflüchtigten Kohlenwasserstoffen für ein Fahrzeug mit Brennkraftmaschine

Country Status (2)

Country Link
EP (1) EP0656470A1 (de)
FR (1) FR2713285B1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5832903A (en) * 1997-06-02 1998-11-10 Brunswick Corp. Fuel supply system for an internal combustion engine
WO2004009990A1 (de) * 2002-07-18 2004-01-29 Daimlerchrysler Ag Kraftstoffkühlung im rücklauf eines druckübersetzten einspritzsystems
US7159578B2 (en) 2004-01-29 2007-01-09 Ford Motor Company Fuel delivery module assembly
DE102010006042A1 (de) 2010-01-28 2011-08-18 Dr. Ing. h.c. F. Porsche Aktiengesellschaft, 70435 Kraftstoffverdunstungs-Rückhaltesystem und Verfahren zum Betreiben eines Kraftstoffverdunstungs-Rückhaltesystems
US20150219045A1 (en) * 2012-11-22 2015-08-06 Toyota Jidosha Kabushiki Kaisha Evaporated fuel processing system (as amended)
CN113027656A (zh) * 2021-05-08 2021-06-25 褚氏工业科技(上海)有限公司 一种四冲程涡轮增压内燃发动机

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0361654A1 (de) * 1988-09-01 1990-04-04 Ford Motor Company Limited Regelsystem für Brennstoffeinspritzung
US4919103A (en) * 1987-02-28 1990-04-24 Nippondenso Co., Ltd. Device for controlling evaporative emission from a fuel tank

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4919103A (en) * 1987-02-28 1990-04-24 Nippondenso Co., Ltd. Device for controlling evaporative emission from a fuel tank
EP0361654A1 (de) * 1988-09-01 1990-04-04 Ford Motor Company Limited Regelsystem für Brennstoffeinspritzung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
FALTERMEIER: "Der neue Audi-V6 Motor", MOTORTECHNISCHE ZEITSCHRIFT, vol. 52, no. 4, 1 April 1991 (1991-04-01), STUTTGART, pages 172 - 181, XP000207876 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5832903A (en) * 1997-06-02 1998-11-10 Brunswick Corp. Fuel supply system for an internal combustion engine
WO2004009990A1 (de) * 2002-07-18 2004-01-29 Daimlerchrysler Ag Kraftstoffkühlung im rücklauf eines druckübersetzten einspritzsystems
US7150270B2 (en) 2002-07-18 2006-12-19 Daimlerchrysler Ag Arrangement for handling the fuel supply in a common rail fuel injection system
CN100400847C (zh) * 2002-07-18 2008-07-09 戴姆勒公司 增压喷油***的回路中的燃油冷却装置
US7159578B2 (en) 2004-01-29 2007-01-09 Ford Motor Company Fuel delivery module assembly
DE102010006042A1 (de) 2010-01-28 2011-08-18 Dr. Ing. h.c. F. Porsche Aktiengesellschaft, 70435 Kraftstoffverdunstungs-Rückhaltesystem und Verfahren zum Betreiben eines Kraftstoffverdunstungs-Rückhaltesystems
US20150219045A1 (en) * 2012-11-22 2015-08-06 Toyota Jidosha Kabushiki Kaisha Evaporated fuel processing system (as amended)
CN113027656A (zh) * 2021-05-08 2021-06-25 褚氏工业科技(上海)有限公司 一种四冲程涡轮增压内燃发动机
CN113027656B (zh) * 2021-05-08 2022-10-21 苏州安誉升船舶机械有限公司 一种四冲程涡轮增压内燃发动机

Also Published As

Publication number Publication date
FR2713285A1 (fr) 1995-06-09
FR2713285B1 (fr) 1996-02-16

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