EP0556488A1 - Récipient de rétention des vapeurs d'essence - Google Patents

Récipient de rétention des vapeurs d'essence Download PDF

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Publication number
EP0556488A1
EP0556488A1 EP92200434A EP92200434A EP0556488A1 EP 0556488 A1 EP0556488 A1 EP 0556488A1 EP 92200434 A EP92200434 A EP 92200434A EP 92200434 A EP92200434 A EP 92200434A EP 0556488 A1 EP0556488 A1 EP 0556488A1
Authority
EP
European Patent Office
Prior art keywords
canister
storage canister
fuel vapour
face
separating chamber
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
EP92200434A
Other languages
German (de)
English (en)
Other versions
EP0556488B1 (fr
Inventor
Kenneth William Turner
Peter John Alfred
Patti Smith Du Bois
Richard Harry Simons, Jr.
William Elihu Gifford
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
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 Motors Liquidation Co filed Critical Motors Liquidation Co
Priority to DE1992611118 priority Critical patent/DE69211118T2/de
Priority to EP19920200434 priority patent/EP0556488B1/fr
Priority to JP4063788A priority patent/JPH086649B2/ja
Publication of EP0556488A1 publication Critical patent/EP0556488A1/fr
Application granted granted Critical
Publication of EP0556488B1 publication Critical patent/EP0556488B1/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
    • F02M25/0854—Details of the absorption canister

Definitions

  • This invention relates to a vehicle fuel evaporation loss control system in general, and specifically to a fuel vapour storage canister that contains a liquid trap that can be installed in the vehicle in a number of possible orientations.
  • fuel vapour that accumulates in the fuel tank vents to a fuel vapour storage canister located in a location remote from the fuel tank in the vehicle.
  • the fuel vapour is captured by an adsorbent bed; usually composed of charcoal. Liquid fuel from condensation or direct entry into the storage canister can contaminate or degrade the efficiency of the adsorbent bed, therefore many evaporative systems have incorporated therein liquid traps to prevent liquid entering the adsorbent bed.
  • a separating chamber at the upper end of the storage canister prevents the liquid component from flowing into the adsorbent bed. As the fluid enters the storage canister, the liquid component is collected at the bottom of the separating chamber. Openings to the adsorbent bed are located above the surface of the liquid component in the separating chamber to allow only the gaseous component to be stored in the adsorbent bed.
  • a storage canister has a number of liquid trap kits that can be connected to the storage canister to allow for various installation orientations in the vehicle.
  • a fuel vapour storage canister in accordance with the present invention is characterised by the features specified in the characterising portion of claim 1.
  • the current invention is a fuel vapour storage canister with a liquid fuel trap that has the capability of multi-orientation installations in the vehicle without the necessity of supplying a number of assembly kits to fit on a particular storage canister for a particular vehicle.
  • One storage canister provides the necessary liquid fuel trap with the convenience of being able to position it in the vehicle in any one of a number of various orientations.
  • the storage canister is filled with an adsorbent material such as charcoal.
  • an adsorbent material such as charcoal.
  • the storage canister housing the interior is divided longitudinally into two compartments, a main and auxiliary compartment. The two compartments communicate with each other by a connecting passage. At the end opposite the connecting passage is an air aperture which opens into the auxiliary compartment.
  • a box-shaped trap housing which encloses a separating chamber that collects the liquid component of the fluid.
  • the trap housing is situated next to the main compartment of the storage canister. In the centre of the trap housing is a purge tube that extends through the separating chamber and opens into the main compartment of the storage canister. Situated in one corner of the trap housing is the tank vent tube that receives fluid vented from the fuel tank.
  • the tank vent tube extends to near the bottom of the separating chamber.
  • a raised inlet tube that opens from about the middle of the separating chamber and extends into the main compartment of the storage canister.
  • a fuel vapour storage canister 10 in accordance with the present invention is shown in the drawings which has a (generally elongated rectangular) canister housing 12 with rounded corners.
  • Figure 1 displays the fuel vapour storage canister 10 with the elongation being on a vertical axis.
  • the cross section of fuel vapour storage canister 10 has different width W and length L, as illustrated in Figure 2.
  • the canister housing 12 is usually made of a plastic material and includes an end face 14 that encloses the fuel vapour storage canister 10 at the one end.
  • the other end 15 of the fuel vapour storage canister 10 has a volume compensator 16.
  • the current invention is not dependent upon such a volume compensator 16 and the other end 15 of the fuel vapour storage canister 10 could be closed by a cap.
  • the canister housing 12 encloses an interior volume, containing an adsorbent bed 18 that is charged with activated charcoal granules, or the like.
  • the interior volume is partitioned parallel to its elongated axis into a main compartment 20 and an auxiliary compartment 22.
  • a partition 24 separates the main compartment 20 and the auxiliary compartment 22, and has a passage 26 at the other end 15 of the canister housing 12 that allows vapour to pass between the two compartments.
  • Sandwiched between the adsorbent bed 18 and the volume compensator 16 is a foam screen 28.
  • Foam screens 30 also separate the end face 14 of the canister housing 12 and the adsorbent bed 18.
  • the side of the end face 14 that abuts the foam screens 30 may have ribs 31 to prevent the foam screens 30 from moving and obstructing air flow to and from the absorbent bed 18.
  • a tubular air aperture 32 which opens into the auxiliary compartment 22 of the fuel vapour storage canister 10.
  • a (box-shaped) trap housing 34 is welded to the end face 14, and encloses a separating chamber 36.
  • the trap housing 34 has an end wall 38 spaced from and parallel to the end face 14 of the fuel vapour storage canister 10.
  • a purge tube 42 In the centre of the end wall 38 is a purge tube 42 that extends through the separating chamber 36 and opens through an aperture 43 in the end face 14 into the main compartment 20 of the fuel vapour storage canister 10.
  • the purge tube 42 is adapted for connection to the engine vacuum source.
  • a tank vent tube 44 which extends through the end wall 38 to provide an open end 45 near the end face 14, and within the separating chamber 36.
  • the tank vent tube 44 is adapted for connection to the fuel tank.
  • an inlet tube 46 which is located on the opposite side of the purge tube 42 from the tank vent tube 44.
  • the inlet tube 46 starts at one end 47 within the separating chamber 36 at a position spaced from the end face 14 and extends through the end face into the main compartment 20 of the fuel vapour storage canister 10. Gaseous fluid that has entered the separating chamber 36 through the tank vent tube 44 from the fuel tank will flow through the inlet tube 46 to the adsorbent bed 18 in the main compartment 20. Any liquid fluid entering the separating chamber 36 will settle in the low point of the separating chamber 36.
  • the tank vent tube 44 is located in a corner of the trap housing 34 so that its open end 45 can always be situated at a low point in relation to the inlet tube 46 and thereby keep the liquid component near to the connection to the fuel tank and out of the adsorbent bed 18. Since the inlet tube 46 is not visible by looking at the canister housing 12 or the trap housing 34, the purge tube 42 may be used as a reference point. If the tank vent tube 44 is oriented to be at a low point in relation to the purge tube 42 (see Figures 3B and 3C), this will have the same result as being at a low point in relation to the inlet tube 46.
  • Figures 3A-3C represent the three possible different orientation installations of the fuel vapour storage canister 10, and show the separating chamber 36 partially filled with liquid 50.
  • Figure 3A shows the fuel vapour storage canister 10 in an upright position with its longitudinal axis vertical, where the trap housing 34 is on the top of the fuel vapour storage canister 10.
  • the fuel vapour storage canister 10 can be turned around about its vertical axis in any direction since the tank vent tube 44 will not be higher than the purge tube 42.
  • the positioning of the one end 47 of the inlet tube 46 at a distance from the end face 14 ensures that the liquid 50 does not reach the adsorbent bed 18.
  • the fuel vapour storage canister 10 can also be installed with its longitudinal axis horizontal.
  • FIG 3B the fuel vapour storage canister 10 is shown with its major transverse axis vertical, and in Figure 3C with its minor transverse axis vertical.
  • the trap housing 34 In both Figures 3B and 3C it is important where the tank vent tube 44 is located in relation to the purge tube 42. In both these orientations, the trap housing 34 must be installed so that the tank vent tube 44 is at the low point in relation to the purge tube 42. This will then ensure that the inlet tube 46 is at a higher position than the tank vent tube 44, so that the liquid 50 will collect in the separating chamber 36 and will not reach the inlet tube 46 that leads to the adsorbent bed 18.
  • the tank vent tube may enter the separating chamber through a side wall of the trap housing to have an open end adjacent a corner of the trap housing and adjacent the end face 14.
  • the end wall 38 has been shown as substantially rectangular, any other suitable shape, such as circular, may be used, as long as the tank vent tube 44 is positioned as required relative to the inlet tube 46.

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)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
EP19920200434 1992-02-17 1992-02-17 Récipient de rétention des vapeurs d'essence Expired - Lifetime EP0556488B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE1992611118 DE69211118T2 (de) 1992-02-17 1992-02-17 Sammelbehälter für Kraftstoffdämpfe
EP19920200434 EP0556488B1 (fr) 1992-02-17 1992-02-17 Récipient de rétention des vapeurs d'essence
JP4063788A JPH086649B2 (ja) 1992-02-17 1992-03-19 燃料蒸気貯蔵缶

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19920200434 EP0556488B1 (fr) 1992-02-17 1992-02-17 Récipient de rétention des vapeurs d'essence

Publications (2)

Publication Number Publication Date
EP0556488A1 true EP0556488A1 (fr) 1993-08-25
EP0556488B1 EP0556488B1 (fr) 1996-05-29

Family

ID=8210426

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19920200434 Expired - Lifetime EP0556488B1 (fr) 1992-02-17 1992-02-17 Récipient de rétention des vapeurs d'essence

Country Status (3)

Country Link
EP (1) EP0556488B1 (fr)
JP (1) JPH086649B2 (fr)
DE (1) DE69211118T2 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995008059A1 (fr) * 1993-09-13 1995-03-23 Expert Maschinenbau Gmbh Filtre a charbon actif pour vehicules a moteur
US5632808A (en) * 1995-03-30 1997-05-27 Honda Giken Kogyo Kabushiki Kaisha Canister
US5776228A (en) * 1997-03-14 1998-07-07 General Motors Corporation Vapor storage canister with foam screen retainer
US5776227A (en) * 1997-03-14 1998-07-07 General Motors Corporation Vapor storage canister with foam screen retainer
US5910637A (en) * 1997-08-25 1999-06-08 General Motors Corporation Fuel vapor storage canister
US6589319B2 (en) * 1999-04-26 2003-07-08 Toyo Roki Seizo Kabushiki Kaisha Canister having liquefied fuel treating function
EP1508686A1 (fr) * 2003-08-18 2005-02-23 Delphi Technologies, Inc. Dispositif de traitement de carburant évaporé
US6942721B2 (en) * 2003-04-18 2005-09-13 Korea Fuel-Tech Corporation Canister for motor vehicle
US9759167B2 (en) 2012-11-28 2017-09-12 Kautex Textron Gmbh & Co. Kg Carbon canister including liquid separator

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5641344A (en) * 1994-12-05 1997-06-24 Tsuchiya Mfg., Co., Ltd. Fuel vapor treatment device
JP2016065463A (ja) * 2014-09-24 2016-04-28 愛三工業株式会社 蒸発燃料処理装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4655189A (en) * 1984-03-31 1987-04-07 Toyota Jidosha Kabushiki Kaisha Device for processing fuel vapor
US4658796A (en) * 1983-03-09 1987-04-21 Aisan Industry Co., Ltd. System for preventing loss of fuel due to evaporation
US4853009A (en) * 1988-08-31 1989-08-01 General Motors Corporation Multi orientation fuel vapor storage canister assembly

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6441891U (fr) * 1987-09-02 1989-03-13
JP2605377B2 (ja) * 1987-09-16 1997-04-30 株式会社デンソー 車両用蒸発燃料処理装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4658796A (en) * 1983-03-09 1987-04-21 Aisan Industry Co., Ltd. System for preventing loss of fuel due to evaporation
US4655189A (en) * 1984-03-31 1987-04-07 Toyota Jidosha Kabushiki Kaisha Device for processing fuel vapor
US4853009A (en) * 1988-08-31 1989-08-01 General Motors Corporation Multi orientation fuel vapor storage canister assembly

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995008059A1 (fr) * 1993-09-13 1995-03-23 Expert Maschinenbau Gmbh Filtre a charbon actif pour vehicules a moteur
US5632808A (en) * 1995-03-30 1997-05-27 Honda Giken Kogyo Kabushiki Kaisha Canister
US5776228A (en) * 1997-03-14 1998-07-07 General Motors Corporation Vapor storage canister with foam screen retainer
US5776227A (en) * 1997-03-14 1998-07-07 General Motors Corporation Vapor storage canister with foam screen retainer
EP0864742A2 (fr) * 1997-03-14 1998-09-16 General Motors Corporation Récipient de rétention de vapeur de carburant
EP0864742A3 (fr) * 1997-03-14 1999-05-26 General Motors Corporation Récipient de rétention de vapeur de carburant
US5910637A (en) * 1997-08-25 1999-06-08 General Motors Corporation Fuel vapor storage canister
EP0899450A3 (fr) * 1997-08-25 1999-09-01 General Motors Corporation Récipient de rétention de vapeur de carburant
US6589319B2 (en) * 1999-04-26 2003-07-08 Toyo Roki Seizo Kabushiki Kaisha Canister having liquefied fuel treating function
US6942721B2 (en) * 2003-04-18 2005-09-13 Korea Fuel-Tech Corporation Canister for motor vehicle
EP1508686A1 (fr) * 2003-08-18 2005-02-23 Delphi Technologies, Inc. Dispositif de traitement de carburant évaporé
US9759167B2 (en) 2012-11-28 2017-09-12 Kautex Textron Gmbh & Co. Kg Carbon canister including liquid separator

Also Published As

Publication number Publication date
DE69211118D1 (de) 1996-07-04
JPH086649B2 (ja) 1996-01-29
JPH05278480A (ja) 1993-10-26
EP0556488B1 (fr) 1996-05-29
DE69211118T2 (de) 1996-10-02

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