WO1994015091A1 - Ventil zum dosierten einleiten von verflüchtigtem brennstoff in einen ansaugkanal einer brennkraftmaschine - Google Patents
Ventil zum dosierten einleiten von verflüchtigtem brennstoff in einen ansaugkanal einer brennkraftmaschine Download PDFInfo
- Publication number
- WO1994015091A1 WO1994015091A1 PCT/DE1993/001151 DE9301151W WO9415091A1 WO 1994015091 A1 WO1994015091 A1 WO 1994015091A1 DE 9301151 W DE9301151 W DE 9301151W WO 9415091 A1 WO9415091 A1 WO 9415091A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valve
- closing member
- face
- electromagnet
- valve closing
- Prior art date
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 13
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 11
- 238000013016 damping Methods 0.000 claims abstract description 19
- 239000002828 fuel tank Substances 0.000 claims abstract description 5
- 239000000696 magnetic material Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000004073 vulcanization Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000013022 venting Methods 0.000 abstract 3
- 239000002184 metal Substances 0.000 abstract 1
- 238000009423 ventilation Methods 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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
- F02M25/0836—Arrangement of valves controlling the admission of fuel vapour to an engine, e.g. valve being disposed between fuel tank or absorption canister and intake manifold
-
- 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
-
- 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
- F02M2025/0845—Electromagnetic valves
Definitions
- the invention is based on a valve for the metered introduction of fuel volatilized from the fuel tank of an internal combustion engine into an intake duct of the internal combustion engine according to the main claim.
- a valve for the metered introduction of fuel volatilized from the fuel tank of an internal combustion engine into an intake duct of the internal combustion engine according to the main claim.
- Such a valve is already known (DE 40 23 044 AI), in which disturbing operating noises can occur, in particular when a solenoid, which influences the valve position, is actuated in a clocked manner as a result of touching relatively moving metallic parts.
- valve according to the invention with the characterizing features of the main claim has the advantage that a disturbing formation of noise during operation of the valve is avoided.
- valve according to the invention has improved wear resistance, since a collision of moving metallic parts relative to one another is prevented or weakened.
- FIG. 1 shows a longitudinal section of a first exemplary embodiment of a valve according to the invention
- FIG. 2 shows a partial section of the first exemplary embodiment corresponding to the dash-dotted line in FIG. 1
- FIG. 3 shows a partial section of a second exemplary embodiment of a valve according to the invention.
- the valve shown in FIG. 1 for the metered admixing of fuel volatilized from the fuel tank of a mixture-compressing, spark-ignited internal combustion engine to a fuel / air mixture supplied to the internal combustion engine via an intake duct, hereinafter referred to as tank ventilation valve, is used in a dispensing system Introduction of volatilized fuel used in an internal combustion engine, as described in DE 35 19 292 AI (US 4,763,635).
- the tank ventilation valve has a two-part valve housing 10 with a cup-shaped housing part 101 and a cap-shaped housing part 102 that terminates this.
- the housing part 101 carries an inflow connection 11 for connection to a ventilation connection of the fuel tank or to a storage tank for the volatilized fuel filled with activated carbon connected downstream thereof, while the housing part 102 carries an outflow connection 12 for connection to the intake pipe of the internal combustion engine.
- Inflow connection 11 and outflow connection 12 are each arranged axially in the housing parts 101 and 102, respectively.
- An electromagnet 13 is arranged in the interior of the pot-shaped housing part 101.
- the electromagnet 13 has a pot-shaped magnet housing 14 with a coaxial, hollow cylindrical magnet core 15 penetrating the bottom of the pot and a cylindrical excitation coil 16 which sits on a coil carrier 17 which encloses the magnet core 15 in the magnet housing 14.
- an outwardly projecting threaded connector 18 with an internal thread 19 is integrally formed, which is screwed to an external thread section 20 of the hollow cylindrical magnetic core 15.
- the magnetic core 15 can therefore be axially displaced by rotating the magnet housing 14.
- the magnetic core 15 is aligned with the inflow nozzle 11, so that the volatilized fuel flowing in here passes directly into the magnetic core 15 and flows through it.
- the magnet housing 14 and the magnet core 15 screwed to it are inserted in the cup-shaped housing part 101 in such a way that between the outer casing of the magnet housing 14 and the inner casing of the valve housing 10 there remain axial channels which are offset from one another in the circumferential direction by the same angle. 1 shows, for example, two diametrically opposite axial channels 21, 22.
- the Axialka ⁇ channels 21, 22 are on the one hand above an annular space 23, which remains between the valve housing 10 and the male threaded portion 20 of the magnetic core 15, with the inflow nozzle 11 and on the other hand through bores 24 which are close to the open end of the Magnetgeh uses 14 in Magnet housing 14 are introduced, with the inside of the magnet housing 14 in connection.
- volatilized fuel emerging from the inflow nozzle 11 also flows around the magnet housing 14 and dissipates any heat generated here.
- the edge of the magnet housing 14 is angled outwards to form an annular bearing flange 25, which is bent at the end to form an axially projecting annular web 26.
- the support flange 25 serves to receive a yoke 27, which covers the magnet housing 14 and rests against the ring web 26 at the edge.
- the yoke 27 is seated by means of at least two fitting holes 28 on retaining pins 29 formed in the cap-shaped housing part 102, which protrude axially on the underside thereof facing the housing part 101.
- valve opening 34 there is at least one valve opening 34 through which the volatilized fuel flowing through the inflow nozzle 11 into the pot-shaped housing part 101 can reach the outflow nozzle 12.
- two valve openings 34 are provided which can be closed by means of a valve closing member 37 arranged between the yoke 27 and the magnetic core 15.
- An axial through opening 51 with a boundary wall 52 (FIGS. 2 and 3) is located centrally in the valve closing member 37 coaxially to the hollow cylindrical magnetic core 15, through which volatilized fuel coming from the inflow nozzle 11 can reach the outflow nozzle 12 when the valve opening 34 is open.
- the valve closing member 37 is made of magnetically conductive material and at the same time forms the armature of the electromagnet 13.
- valve closing member 37 is acted upon by a valve closing spring 49 in the valve closing direction.
- the valve closing spring 49 is supported on the one hand on the valve closing member 37 and on the other hand on an annular support shoulder 50 formed on the inner wall of the hollow cylindrical magnetic core 15.
- the valve closing member 37 can be actuated against the force of the valve closing spring 49 away from the valve opening 34 in the valve opening direction.
- the back of the return yoke 27 facing away from the valve closing member 37 is sealed off from the housing part 102 by a sealing ring 42, so that leakage losses via the connection of the return yoke 27 and the magnet housing 14 are avoided.
- the outflow spigot 12 is snapped into a receiving spigot 43 which is coaxially formed on the housing part 102.
- a valve seat 44 of a check valve 45 can be formed in the receiving socket 43 on a radially inwardly projecting annular shoulder, on which a valve body 46 is pressed by a valve spring 47.
- the valve spring 47 is supported in an abutment 48 provided in the outflow connection 12.
- the check valve 45 is particularly necessary when the tank ventilation valve is to be used in so-called supercharged engines.
- FIG. 2 shows a partial section of the first exemplary embodiment of a tank ventilation valve according to the invention shown in FIG. 1, corresponding to the dash-dotted line in FIG. 1.
- the hollow cylindrical magnetic core 15 of the electromagnet 13 is surrounded by the excitation coil 16 located on the coil carrier 17.
- the valve closing spring 49 which acts on the valve closing member 37, is supported on the support shoulder 50.
- the yoke 27 has on its side facing the magnetic core 15 in the axial direction a cylindrical recess 30.
- the plate or disc-shaped valve closing member 37 projects into the recess 30 and has a somewhat smaller diameter than the recess 30, so that a radial gap 31 remains between the circumference of the valve closing member 37 and the wall of the recess 30.
- the radial gap 31 is dimensioned such that the valve closing member 37 is guided axially displaceably with its circumference in the recess 30.
- two raised valve seats 32 are formed in the area of, for example, two valve openings 34, which form a double valve seat.
- the yoke 27 therefore has the function of a valve seat body of the tank ventilation valve.
- At least three axial through-bores 33 are arranged in the valve closing member 37 and lie on an imaginary circle at the same distance from one another. The through bores 33 are penetrated by a damper element 35.
- the damper element 35 On a first end face 38 of the valve closing member 37 directed towards the double valve seat 32, the damper element 35 extends in the radial direction and in the circumferential direction over at least one partial area 36 which is at least the same size as the at least one valve seat 32 formed on the valve seat body 27 Damping element 35 seals the valve openings 34 with its partial area extending over the first end face 38 of valve closing member 37 in the valve closing position and dampens an impact of valve closing member 37 resulting from the valve opening position out of the valve opening position after switching off the current due to the force of valve closing spring 49 32 from.
- the damper element 35 accordingly also forms a first damping surface 40 on the first end face of the valve closing member 37.
- the damper element 35 protrudes in the area of the through bores 33 in a bump-like manner beyond the outer contour of the valve closing member 37.
- the damper element 35 thus forms partial damping surfaces on the second end face 39 in the region of the through bores 33, which together result in a second damping surface 41.
- the damper element 35 rests with its second damping surface 41 on a stop surface 55 formed by a stop body 54. In this way, a metallic impact of the valve closing member 37 can be prevented or dampened with its second end face 39 on an opposite end face 56 of the magnetic core 15.
- the stop body 54 is, for example, ring-shaped and pressed onto the end of the magnetic core 15. By rotating the magnetic core 15, the stop surface 55 can be axially adjusted together with the end face 56 by means of the adjusting thread formed by the internal thread 19 and the external thread section 20 (FIG. 1). A more or less large axial gap can therefore form between the stop body 54 and the coil body 17.
- the damper element 35 is formed from rubber-like material, which can be connected to the valve closing member 37 by vulcanization.
- the damping effect of the damper element 35 is based in particular on the formation of internal friction in the event of a deformation of the damper element 35 due to an impact.
- the stop ring 54 from non-magnetic material, an unfavorable influence on the magnetic field geometry of the tank ventilation valve can be avoided. Otherwise, the stop surface 55 can also be formed by the magnetic core 15 itself.
- FIG. 3 shows a partial section of a second embodiment of a tank ventilation valve according to the invention.
- the same and equivalent parts are identified by the same reference numerals as in Figures 1 and 2.
- An essential difference from the first exemplary embodiment is the arrangement of the damper element 35 and the valve closing spring 49.
- the damper element 35 also extends here over the partial region 36, which is at least as large as the at least one valve seat 32 formed on the valve seat body 37. Starting from the first partial area 36, the damper element 35 extends radially inward to the through opening 51 and from there axially lining the through opening 51 along the boundary wall 52 to the second end face 39 of the valve closing member 37. There it closes approximately axially flush with the from the second end face 39 and forms the second damping surface 41 there.
- the damper element 35 can, for example, also be hump-like on its second damping surface 41 and / or protrude beyond the outer contour of the valve closing member 37.
- the valve closing spring 49 encompasses the magnetic core 15 in FIG. 3 and is at least partially penetrated by it.
- the support shoulder 50 is also arranged on the outer circumference of the magnetic core 15.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
- Feeding And Controlling Fuel (AREA)
- Lift Valve (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP94900748A EP0628137B2 (de) | 1992-12-24 | 1993-12-03 | Ventil zum dosierten einleiten von verflüchtigtem brennstoff in einen ansaugkanal einer brennkraftmaschine |
DE59305883T DE59305883D1 (de) | 1992-12-24 | 1993-12-03 | Ventil zum dosierten einleiten von verflüchtigtem brennstoff in einen ansaugkanal einer brennkraftmaschine |
KR1019940702830A KR100301333B1 (ko) | 1992-12-24 | 1993-12-03 | 내연기관의흡입관속으로의기화연료의계량흡입용밸브 |
JP51466294A JP3597192B2 (ja) | 1992-12-24 | 1993-12-03 | 気化した燃料を内燃機関の吸気通路内へ調量して導入するための弁 |
US08/290,710 US5560585A (en) | 1992-12-24 | 1993-12-03 | Valve for metering introduction of evaporated fuel into an induction duct of an internal combustion engine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4244113A DE4244113A1 (de) | 1992-12-24 | 1992-12-24 | Ventil zum dosierten Einleiten von verflüchtigtem Brennstoff in einen Ansaugkanal einer Brennkraftmaschine |
DEP4244113.7 | 1992-12-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1994015091A1 true WO1994015091A1 (de) | 1994-07-07 |
Family
ID=6476560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1993/001151 WO1994015091A1 (de) | 1992-12-24 | 1993-12-03 | Ventil zum dosierten einleiten von verflüchtigtem brennstoff in einen ansaugkanal einer brennkraftmaschine |
Country Status (7)
Country | Link |
---|---|
US (1) | US5560585A (de) |
EP (1) | EP0628137B2 (de) |
JP (1) | JP3597192B2 (de) |
KR (1) | KR100301333B1 (de) |
DE (2) | DE4244113A1 (de) |
ES (1) | ES2100033T5 (de) |
WO (1) | WO1994015091A1 (de) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19540021A1 (de) * | 1995-10-27 | 1997-04-30 | Bosch Gmbh Robert | Ventil zum dosierten Einleiten von aus einem Brennstofftank einer Brennkraftmaschine verflüchtigtem Brennstoffdampf |
DE19611886A1 (de) * | 1996-03-26 | 1997-10-02 | Bosch Gmbh Robert | Magnetventil |
US5758865A (en) * | 1996-08-21 | 1998-06-02 | Kavlico Corporation | Fuel injection valve and engine including the same |
DE19721562A1 (de) * | 1997-05-23 | 1998-11-26 | Bosch Gmbh Robert | Ventil zum dosierten Einleiten von verflüchtigtem Brennstoff |
DE19905721A1 (de) * | 1998-02-24 | 1999-08-26 | Hoerbiger Ventilwerke Gmbh | Gasventil |
US6019347A (en) * | 1998-03-13 | 2000-02-01 | Fema Corporation Of Michigan | Pulse width modulated gas flow control valve |
DE19839476A1 (de) * | 1998-08-29 | 2000-03-02 | Bosch Gmbh Robert | Ventil zum dosierten Einleiten von verflüchtigtem Brennstoff |
DE19852980A1 (de) * | 1998-11-17 | 2000-05-18 | Bosch Gmbh Robert | Ventil zum dosierten Einleiten von verflüchtigtem Brennstoff |
DE19901090A1 (de) * | 1999-01-14 | 2000-07-20 | Bosch Gmbh Robert | Ventil zum dosierten Einleiten von verflüchtigtem Brennstoff |
DE19913937A1 (de) * | 1999-03-26 | 2000-10-05 | Alfmeier Praezision Ag | Einrichtung zum Ent- und Belüften eines Kraftstofftanks |
DE60008869T2 (de) * | 1999-06-08 | 2004-08-05 | Johnson Controls Automotive Electronics | Elektromagnetventil für entlüftungsvorrichtung von dämpfen |
DE19928207A1 (de) | 1999-06-19 | 2000-12-21 | Bosch Gmbh Robert | Magnetventil |
DE19935261A1 (de) * | 1999-07-27 | 2001-02-01 | Bosch Gmbh Robert | Ventil zum dosierten Einleiten von verflüchtigtem Brennstoff in einen Ansaugkanal einer Brennkraftmaschine |
DE19937722A1 (de) | 1999-08-10 | 2001-02-15 | Bosch Gmbh Robert | Ventil zum dosierten Einleiten von verflüchtigtem Brennstoff in einen Ansaugkanal einer Brennkraftmaschine |
DE19958913A1 (de) * | 1999-12-07 | 2001-06-28 | Bosch Gmbh Robert | Elektromagnetisch betätigbares Ventil |
US6722626B2 (en) * | 2000-08-14 | 2004-04-20 | Siemens Automotive Inc. | Valve providing increase in flow for increase in power level |
ES2167275B1 (es) * | 2000-10-20 | 2003-10-16 | Bitron Ind Espana Sa | Electrovalvula reguladora de caudal de aire. |
US6467495B2 (en) * | 2000-11-29 | 2002-10-22 | Delphi Technologies, Inc. | Apparatus and method for sealing a solenoid valve |
US6463951B2 (en) * | 2000-11-29 | 2002-10-15 | Delphi Technologies, Inc. | Apparatus and method for sealing a solenoid valve |
US6595485B2 (en) * | 2001-08-08 | 2003-07-22 | Delphi Technologies, Inc. | Solenoid valve with cushion between plunger and plunger stop |
JP2005155712A (ja) * | 2003-11-21 | 2005-06-16 | Mitsubishi Electric Corp | 電磁弁 |
US20050210930A1 (en) * | 2004-03-26 | 2005-09-29 | Contini Vincent J | Solenoid plunger cushioning system for a washing machine balancing fluid valve |
JP4564087B2 (ja) * | 2005-04-19 | 2010-10-20 | オーエムブイエル・エス.ピー.エー. | 内燃機関のための気体燃料噴射装置 |
US20080000456A1 (en) * | 2006-06-30 | 2008-01-03 | Siemens Canada Limited | Cost-optimized canister purge valve |
JP2008075827A (ja) * | 2006-09-25 | 2008-04-03 | Denso Corp | 流体制御弁 |
EP2500610B1 (de) * | 2011-03-12 | 2016-11-30 | Asco Numatics GmbH | Vorrichtung zur Durchflussregelung eines flüssigen oder gasförmigen Mediums |
DE102011079629A1 (de) * | 2011-07-22 | 2013-01-24 | Robert Bosch Gmbh | Elektromagnetisch betätigbares Ventil |
DE102013201237A1 (de) † | 2013-01-25 | 2014-07-31 | Veritas Ag | Entlüftungsventil |
US9360120B2 (en) * | 2013-11-01 | 2016-06-07 | Emerson Process Management Regulator Technologies, Inc. | Valve plug for pressure regulator |
FR3035167B1 (fr) * | 2015-04-20 | 2018-05-25 | Valeo Systemes De Controle Moteur | Electrovanne de purge pour dispositif d'evacuation de vapeurs |
FR3036456B1 (fr) * | 2015-05-20 | 2017-12-22 | Valeo Systemes De Controle Moteur | Electrovanne de purge pour dispositif d'evacuation de vapeurs |
FR3082268B1 (fr) * | 2018-06-06 | 2020-07-17 | Valeo Systemes De Controle Moteur | Dispositif electromagnetique comportant un clapet avec un organe obturateur pour limiter les vibrations |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4813647A (en) * | 1986-11-24 | 1989-03-21 | Nippondenso Co., Ltd. | Electromagnetic actuator for controlling fluid flow |
US4901974A (en) * | 1989-05-11 | 1990-02-20 | Siemens-Bendix Automotive Electronics Limited | Canister purge solenoid valve |
US4986246A (en) * | 1988-12-31 | 1991-01-22 | Robert Bosch Gmbh | Valve for the metered admixture of volatilized fuel to the fuel-air mixture of an internal combustion engine |
US5069188A (en) * | 1991-02-15 | 1991-12-03 | Siemens Automotive Limited | Regulated canister purge solenoid valve having improved purging at engine idle |
US5237980A (en) * | 1992-12-02 | 1993-08-24 | Siemens Automotive Limited | On-board fuel vapor recovery system having improved canister purging |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02209683A (ja) * | 1989-02-08 | 1990-08-21 | Mitsubishi Electric Corp | 電磁弁 |
DE4023044A1 (de) * | 1990-07-20 | 1992-01-23 | Bosch Gmbh Robert | Ventil zum dosierten zumischen von verfluechtigtem kraftstoff zum kraftstoffluftgemisch einer brennkraftmaschine |
JP2665842B2 (ja) * | 1991-08-02 | 1997-10-22 | 三菱電機株式会社 | 電磁弁 |
DE4229110C1 (de) * | 1992-09-01 | 1993-10-07 | Freudenberg Carl Fa | Vorrichtung zum vorübergehenden Speichern und dosierten Einspeisen von im Freiraum einer Tankanlage befindlichen flüchtigen Kraftstoffbestandteilen in das Ansaugrohr einer Verbrennungskraftmaschine |
-
1992
- 1992-12-24 DE DE4244113A patent/DE4244113A1/de not_active Ceased
-
1993
- 1993-12-03 KR KR1019940702830A patent/KR100301333B1/ko not_active IP Right Cessation
- 1993-12-03 JP JP51466294A patent/JP3597192B2/ja not_active Expired - Lifetime
- 1993-12-03 EP EP94900748A patent/EP0628137B2/de not_active Expired - Lifetime
- 1993-12-03 DE DE59305883T patent/DE59305883D1/de not_active Expired - Lifetime
- 1993-12-03 ES ES94900748T patent/ES2100033T5/es not_active Expired - Lifetime
- 1993-12-03 US US08/290,710 patent/US5560585A/en not_active Expired - Lifetime
- 1993-12-03 WO PCT/DE1993/001151 patent/WO1994015091A1/de active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4813647A (en) * | 1986-11-24 | 1989-03-21 | Nippondenso Co., Ltd. | Electromagnetic actuator for controlling fluid flow |
US4986246A (en) * | 1988-12-31 | 1991-01-22 | Robert Bosch Gmbh | Valve for the metered admixture of volatilized fuel to the fuel-air mixture of an internal combustion engine |
US4901974A (en) * | 1989-05-11 | 1990-02-20 | Siemens-Bendix Automotive Electronics Limited | Canister purge solenoid valve |
US5069188A (en) * | 1991-02-15 | 1991-12-03 | Siemens Automotive Limited | Regulated canister purge solenoid valve having improved purging at engine idle |
US5237980A (en) * | 1992-12-02 | 1993-08-24 | Siemens Automotive Limited | On-board fuel vapor recovery system having improved canister purging |
Also Published As
Publication number | Publication date |
---|---|
EP0628137B1 (de) | 1997-03-19 |
JPH07504259A (ja) | 1995-05-11 |
US5560585A (en) | 1996-10-01 |
KR100301333B1 (ko) | 2001-12-15 |
DE59305883D1 (de) | 1997-04-24 |
ES2100033T5 (es) | 2003-03-16 |
ES2100033T3 (es) | 1997-06-01 |
KR950700488A (ko) | 1995-01-16 |
DE4244113A1 (de) | 1994-06-30 |
JP3597192B2 (ja) | 2004-12-02 |
EP0628137B2 (de) | 2002-08-28 |
EP0628137A1 (de) | 1994-12-14 |
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