EP0969198A2 - Dispositif pour rincer un filtre à charbon actif et pour tester l'étanchéité d'une installation de réservoir à carburant pour moteur de véhicule connectée à ce filtre - Google Patents

Dispositif pour rincer un filtre à charbon actif et pour tester l'étanchéité d'une installation de réservoir à carburant pour moteur de véhicule connectée à ce filtre Download PDF

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Publication number
EP0969198A2
EP0969198A2 EP99105365A EP99105365A EP0969198A2 EP 0969198 A2 EP0969198 A2 EP 0969198A2 EP 99105365 A EP99105365 A EP 99105365A EP 99105365 A EP99105365 A EP 99105365A EP 0969198 A2 EP0969198 A2 EP 0969198A2
Authority
EP
European Patent Office
Prior art keywords
atmosphere
valve
activated carbon
canister
line
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
EP99105365A
Other languages
German (de)
English (en)
Other versions
EP0969198A3 (fr
EP0969198B1 (fr
Inventor
Günter van de Venne
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.)
Pierburg GmbH
Original Assignee
Pierburg GmbH
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 Pierburg GmbH filed Critical Pierburg GmbH
Publication of EP0969198A2 publication Critical patent/EP0969198A2/fr
Publication of EP0969198A3 publication Critical patent/EP0969198A3/fr
Application granted granted Critical
Publication of EP0969198B1 publication Critical patent/EP0969198B1/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
    • 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
    • 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
    • F02M25/0809—Judging failure of purge control system
    • F02M25/0818—Judging failure of purge control system having means for pressurising the evaporative emission space

Definitions

  • the invention relates to a device for flushing an activated carbon trap and Temporary leak test of a fuel tank system connected to this one Vehicle internal combustion engine according to the preamble of the claim.
  • a device for flushing an activated carbon trap is already known from EP 0 585 527 B1 known. This consists of a line connected to the activated carbon trap, which in the Air intake system of the internal combustion engine opens downstream of the throttle device. Because of the vacuum fluctuations depending on the load there is an irregular one Flushing, which is compensated by a clocked solenoid valve should. This requires a considerable amount of equipment and control technology.
  • a device can be found in the unpublished DE 197 09 903.3 the one purging independent of the fluctuating intake pressure of the internal combustion engine the activated carbon trap is reached, with an advantageous leak test at the same time for the tank system to be achieved. This is essentially based on the fact that the Purge air upstream of the throttling device of the burner machine in the Air intake system is initiated and promoted by an electric air pump, whose direction of conveyance is reversed during the leak test.
  • the drawing shows an inventive device 1 for rinsing a Activated carbon trap 2 and for the temporary leak test of one connected to it
  • Fuel tank system 3 of a vehicle internal combustion engine 4 in which the purge air is out the atmosphere via the activated carbon trap 2 into a not shown Air intake system initiated with a throttle device of the internal combustion engine 4 and the leak test by setting a test pressure in the hermetic lockable tank system 3 and subsequent pressure drop measurement by a Pressure sensor 5 is detected over a period of time, the information about the tightness gives.
  • This air pump 6 is, for. B. executed as a side channel pump whose Delivery direction is switchable.
  • An embodiment is possible through the design of the device 1 according to the invention become, in which the fuel tank 3 via a connecting line 14 with the Activated carbon trap 2, via this and the line 9 and the open valve 10 with the Atmosphere is connected when the engine is turned off, so that the Release any pressure in tank 3 into the atmosphere via activated charcoal trap 2 can with the binding of fuel vapor in the activated carbon trap 2.
  • the line 11 is closed by the check valve 13 in the direction of the atmosphere.
  • the valve is 8 in the line 7 to the internal combustion engine opened and the valve 10 in the line 9 closed, so that the air pump 6 purge air via the check valve 13 and Aperture 12 via the activated carbon trap 2 into the air intake system of the internal combustion engine 4 can promote, but the amount in proportion to the small, of the Internal combustion engine 4 is sucked combustion air.
  • the one in the activated carbon trap 2 Fuel that has been knocked off is transported to the internal combustion engine 4 by the purge air and burns in this.
  • the valve 10 is in the leading to the atmosphere Line 9 also opened so that the amount of purge air is increased in the ratio that the internal combustion engine 4 easily transported the purge air Can burn the amount of fuel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
  • Testing Of Engines (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
EP99105365A 1998-07-02 1999-03-16 Dispositif pour rincer un filtre à charbon actif et pour tester l'étanchéité d'une installation de réservoir à carburant pour moteur de véhicule connectée à ce filtre Expired - Lifetime EP0969198B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19829585A DE19829585A1 (de) 1998-07-02 1998-07-02 Vorrichtung zum Spülen einer Aktivkohlefalle und zur zeitweiligen Dichtheitsprüfung einer mit dieser verbundenen Brennstofftankanlage einer Fahrzeug-Brennkraftmaschine
DE19829585 1998-07-02

Publications (3)

Publication Number Publication Date
EP0969198A2 true EP0969198A2 (fr) 2000-01-05
EP0969198A3 EP0969198A3 (fr) 2000-07-05
EP0969198B1 EP0969198B1 (fr) 2003-08-20

Family

ID=7872763

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99105365A Expired - Lifetime EP0969198B1 (fr) 1998-07-02 1999-03-16 Dispositif pour rincer un filtre à charbon actif et pour tester l'étanchéité d'une installation de réservoir à carburant pour moteur de véhicule connectée à ce filtre

Country Status (3)

Country Link
EP (1) EP0969198B1 (fr)
DE (2) DE19829585A1 (fr)
ES (1) ES2201585T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012089432A1 (fr) * 2010-12-28 2012-07-05 Robert Bosch Gmbh Système d'aération, destiné en particulier à un réservoir de carburant
US20150285171A1 (en) * 2014-04-08 2015-10-08 Ford Global Technologies, Llc System and methods for a leak check module comprising a reversible vacuum pump
US9611817B2 (en) 2014-08-21 2017-04-04 Ford Global Technologies, Llc Fuel vapor canister purge using reversible vacuum pump
CN115111091A (zh) * 2022-04-27 2022-09-27 一汽奔腾轿车有限公司 一种燃油车蒸发系统燃油泄漏的诊断方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10034391A1 (de) * 2000-07-14 2002-01-24 Alfmeier Praez Ag Vorrichtung zur Regenerierung eines Aktivkohlefilters

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0585527A1 (fr) 1992-09-01 1994-03-09 Firma Carl Freudenberg Dispositif pour l'alimentation temporaire de carburant évaporé d'un espace libre d'un réservoir dans la tubulure d'admission d'un motor à combustion interne
DE4328090C2 (de) 1992-08-21 1996-01-18 Mitsubishi Electric Corp Kraftstoffdampfablaßsystem für eine Brennkraftmaschine mit innerer Verbrennung und zugehöriges Diagnoseverfahren
WO1996014505A1 (fr) 1994-11-03 1996-05-17 Siemens Electric Limited Procede et dispositif d'actionnement d'une pompe de detection de fuite dans un systeme de controle de l'evaporation de carburant
DE19709903A1 (de) 1997-03-11 1998-09-17 Pierburg Ag Vorrichtung zum Spülen einer Aktivkohlefalle und zur zeitweiligen Dichtheitsprüfung einer mit dieser verbundenen Brennstofftankanlage einer Fahrzeug-Brennkraftmaschine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19617386C1 (de) * 1996-04-30 1997-07-24 Siemens Ag Tankentlüftungssystem für eine direkteinspritzende Brennkraftmaschine
DE19617957A1 (de) * 1996-05-04 1997-11-13 Bosch Gmbh Robert Tankentlüftungseinrichtung
DE19639116B4 (de) * 1996-09-24 2009-01-15 Robert Bosch Gmbh Tankentlüftungseinrichtung für Kraftfahrzeuge

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4328090C2 (de) 1992-08-21 1996-01-18 Mitsubishi Electric Corp Kraftstoffdampfablaßsystem für eine Brennkraftmaschine mit innerer Verbrennung und zugehöriges Diagnoseverfahren
EP0585527A1 (fr) 1992-09-01 1994-03-09 Firma Carl Freudenberg Dispositif pour l'alimentation temporaire de carburant évaporé d'un espace libre d'un réservoir dans la tubulure d'admission d'un motor à combustion interne
WO1996014505A1 (fr) 1994-11-03 1996-05-17 Siemens Electric Limited Procede et dispositif d'actionnement d'une pompe de detection de fuite dans un systeme de controle de l'evaporation de carburant
DE19709903A1 (de) 1997-03-11 1998-09-17 Pierburg Ag Vorrichtung zum Spülen einer Aktivkohlefalle und zur zeitweiligen Dichtheitsprüfung einer mit dieser verbundenen Brennstofftankanlage einer Fahrzeug-Brennkraftmaschine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012089432A1 (fr) * 2010-12-28 2012-07-05 Robert Bosch Gmbh Système d'aération, destiné en particulier à un réservoir de carburant
US9297717B2 (en) 2010-12-28 2016-03-29 Robert Bosch Gmbh Venting system, in particular for a fuel tank
US20150285171A1 (en) * 2014-04-08 2015-10-08 Ford Global Technologies, Llc System and methods for a leak check module comprising a reversible vacuum pump
US9822737B2 (en) * 2014-04-08 2017-11-21 Ford Global Technologies, Llc System and methods for a leak check module comprising a reversible vacuum pump
US9611817B2 (en) 2014-08-21 2017-04-04 Ford Global Technologies, Llc Fuel vapor canister purge using reversible vacuum pump
CN115111091A (zh) * 2022-04-27 2022-09-27 一汽奔腾轿车有限公司 一种燃油车蒸发系统燃油泄漏的诊断方法
CN115111091B (zh) * 2022-04-27 2024-04-12 一汽奔腾轿车有限公司 一种燃油车蒸发系统燃油泄漏的诊断方法

Also Published As

Publication number Publication date
DE59906641D1 (de) 2003-09-25
DE19829585A1 (de) 2000-01-05
EP0969198A3 (fr) 2000-07-05
ES2201585T3 (es) 2004-03-16
EP0969198B1 (fr) 2003-08-20

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