EP1056945B1 - Ventil zum dosierten einleiten von verflüchtigtem brennstoff - Google Patents
Ventil zum dosierten einleiten von verflüchtigtem brennstoff Download PDFInfo
- Publication number
- EP1056945B1 EP1056945B1 EP99927656A EP99927656A EP1056945B1 EP 1056945 B1 EP1056945 B1 EP 1056945B1 EP 99927656 A EP99927656 A EP 99927656A EP 99927656 A EP99927656 A EP 99927656A EP 1056945 B1 EP1056945 B1 EP 1056945B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- connection
- housing
- housing part
- protective screen
- 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.)
- Expired - Lifetime
Links
Images
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
- F02M25/0836—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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/794—With means for separating solid material from the fluid
- Y10T137/8122—Planar strainer normal to flow path
Definitions
- the invention relates to a valve for metered introduction from a fuel tank of an internal combustion engine volatilized fuel in the internal combustion engine according to the preamble of claim 1.
- Such a valve is known for example from DE 195 33 742 A1 and from the unpublished DE 197 21 562 A1.
- valves are used to regenerate adsorption filters for fuel evaporation retention systems of the Vehicle fuel tanks. Because such adsorption filters Contained activated carbon particles, it can occur during rinsing processes to contamination of the valve due to tearing activated carbon particles.
- the object of the invention is a valve of the generic type Kind in such a way that it is at a high Variability in terms of its connections and holders is as insensitive to dirt as possible and has a high maximum flush volume allows.
- the modularity of the valve is increased, on the one hand others significantly simplify manufacturability. by virtue of this two-part training it is possible type-specific differences such as holder, connections etc.. only at the end of valve manufacture by fastening of the second part. Of great advantage it is also that the first part on the inflow side a protective screen is closed. This will create a Soiling of the valve is prevented, the protective screen the entire upstream end face of the first Can take part of the housing.
- connection can preferably be a bayonet connection be realized. It is understood that other detachable connections are also possible.
- a locking connection can be used.
- the locking elements are designed so that it is destroyed when loosened become.
- a releasable snap-in connection can be solved with a suitable tool.
- Another embodiment provides that the protective screen is releasably attached to the first housing part. This embodiment offers the advantage in particular the easy interchangeability of the protective screen.
- Valve 1 shown is used for metered discharge from a fuel tank of an internal combustion engine (not represented) volatilized fuel in the internal combustion engine, e.g. in an intake pipe or at a Direct petrol injection directly into a cylinder Internal combustion engine and is part of a not shown Evaporative control system one mixture-compressing, spark-ignited internal combustion engine.
- the structure and function of such fuel evaporation retention systems is for example the "Bosch Technical Instruction Engine Management Motronic ", 2nd edition, August 1993, pages 48 and 49 removable.
- the structure and mode of operation of one too referred to as regeneration valve or tank vent valve Valve 1 is from DE 195 33 742 A1 and in particular from DE 197 21 562.9, the disclosure of which in the present patent application is to be included, known.
- the valve has a coaxial to a valve longitudinal axis 2 two-part valve housing, in the first housing part 8 an electromagnet 12 is arranged.
- the electromagnet 12 has a pot-shaped magnet housing 14 on, the bottom of which is a coaxial hollow cylindrical magnetic core 15 penetrates by a cylindrical Excitation coil 16 is surrounded, which in turn on a Coil carrier 17 is arranged.
- the magnet housing 14 is on its top by a bow-shaped valve seat body 31 closed.
- the valve seat body 31 forms the yoke of the electromagnet 12.
- the valve seat body 31 covers this Magnet housing and is by means of at least two in Fig. 3rd shown fitting holes 47 attached to the magnet housing.
- a valve member 36 made of magnetic material also forms the anchor of the electromagnet 12.
- Das Valve member 36 is from a valve closing spring 43 in Valve closing direction in the direction of an outflow connection 10 acted on the one hand on the valve member 36th and on the other hand at a sleeve-shaped end of the magnetic core 15 supports.
- the valve member carries on a side of the valve seat body 31 facing a sealing element made of elastic material, e.g. Elastomer.
- the sealing element 42 also lines the through opening 38 and is slightly above one of the two valve openings 34 in the valve seat body 31 facing away from the valve member 36 beyond.
- the valve member 36 In the de-energized state of the electromagnet 12, it presses Valve closing spring 43, the valve member 36 with the sealing element 42 on the valve seat body 31 and closes thus the valve opening 34.
- the valve member 36 In the energized state of the electromagnet 12, the valve member 36 with his the through opening 38 protruding sealing element pressed against the end of the magnetic core 15, the one Stop for the stroke movement of the valve member 36 forms.
- the stop can be adjusted a thread arranged on the magnetic core 15 be realized in a corresponding complementary trained, provided on the magnet housing 14 Engages thread.
- the first Housing part 8 on its inlet 13 facing Side a protective screen 70 arranged, which the inflow-side End face of the first housing part 8 covered.
- This protective screen prevents, for example Carbon particles from the activated carbon filter in can get inside the first housing part 8 and damage the valve.
- the large-scale training of the protective screen 70 is particularly advantageous because practically no restriction of the flow behavior of the valve occurs.
- the protective screen 70 can, for example, on the first Housing part 8 by a welded connection or another permanent connection may be attached but also releasably attached to the housing. This Embodiment is particularly with regard to one Replace the protective screen 70 or a filter that in place of the protective screen 70, of great size Advantage.
- a Sealing element 82 for example an O-ring seal, is arranged between the second Housing part 9 and the first housing part 8 .
- the two-part design of the housing also has also in particular with regard to manufacturability des.Ventils 1 great advantages. So the first part of the housing 8 together with the electromagnetically operated Valve to be completed first. Only then will adapted to an installation situation, the second housing part 9 with the inlet connection 13 on the first housing part 8 attached. This is particularly in an automatic Manufacturing the feeding of the individual components Transport of the valves and the like considerably simplified. type-specific Differences such as holders, connections and the like. are provided on the second housing part 9 and must only at the end of valve manufacture by fastening of the second housing part 9 on the first housing part 8 getting produced.
- the outflow nozzle 10 has a convergent part 56 and a divergent part 57 to form one Laval nozzle, which differs from a first inlet cross-section 60 downstream near the valve seat body 31 tapered to a narrowest cross section 61 then from this narrowest cross section 61 to one End cross section 62 to expand at the downstream end. It is provided that the inlet cross section 60 is at least equal to or larger than the final cross section 62. The inlet cross section is preferably 1.1 to 2 times larger than the final cross section 62. The narrowest cross section 61 is preferably 2 to 4 times smaller than the entrance cross section 60.
- the between the Entry cross section 60 and the end cross section 62 measured The length of the Laval nozzle is, for example, 3 to 5 times larger than a diameter at the inlet cross section 60. It is contemplated that the side of the valve seat body 31, which lies opposite the inlet cross section 60, one Distance to the inlet side of the outflow connector 10 has in the direction of the valve longitudinal axis 2, so that between the inlet side of the outflow nozzle 10 and one Sealing ring 51, which has an outer annular space between the valve seat body 31 and the ring housing part on which the discharge port 10 is arranged, seals, formed at least perpendicular to the longitudinal axis 2 of the valve has a lateral extension as large as the diameter of the inlet cross-section is 60 and in which open the valve openings 34.
- the annular gap geometry 34 of this valve is so chosen that the valve also in a tank ventilation system a gasoline direct injection internal combustion engine can be used. In such an internal combustion engine is a higher maximum quantity with the same Accuracy of the smallest quantities required. This is done by adjusting the ring gap geometry of the Valve seat body 31 allows.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
- Lift Valve (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
Description
- Fig. 1
- schematisch einen Längsschnitt durch ein erfindungsgemäßes Ventil,
- Fig. 2
- einen Schnitt entlang der Linie I-I in Fig. 1 und
- Fig. 3
- eine Stirnansicht eines Ventilsitzkörpers.
Claims (7)
- Ventil zum dosierten Einleiten von aus einem Brennstofftank einer Brennkraftmaschine verflüchtigtem Brennstoff in die Brennkraftmaschine, mit einem Ventilgehäuse, das einen Zuströmstutzen (13) zum Anschließen an einen Brennstofftank oder an einen diesem nachgeschalteten Adsorptionsfilter für den verflüchtigten Brennstoff hat, und mit einem Abströmstutzen (10) zum Anschließen an die Brennkraftmaschine, mit einem zwischen Zuströmstutzen (13) und Abströmstutzen (10) im Inneren des Ventilgehäuses untergebrachten Ventilglied (36), das von einem einen Magnetkern (15) aufweisenden Elektromagneten (12) betätigbar ist und mit einem an einem Ventilsitzkörper (31) ausgebildeten Ventilsitz zusammenwirkt, dadurch gekennzeichnet, daß das Ventilgehäuse einen zuströmseitig durch ein Schutzsieb (70) verschlossenen ersten Gehäuseteil (8) umfaßt, in/an dem der Elektromagnet (12), das Ventilglied (36), der Ventilsitzkörper (31) und der Abströmstutzen (10) vorgesehen sind, und einen zweiten Gehäuseteil (9), an dem der Zuströmstutzen (13) angeordnet ist und der an dem ersten Gehäuseteil (8) befestigbar ist.
- Ventil nach Anspruch 1, dadurch gekennzeichnet, daß die beiden Gehäuseteile (8, 9) lösbar miteinander verbunden ist.
- Ventil nach Anspruch 2, dadurch gekennzeichnet, daß die Verbindung eine Bajonett-Verbindung ist.
- Ventil nach Anspruch 1, dadurch gekennzeichnet, daß die beiden Gehäuseteile unlösbar miteinander verbunden sind.
- Ventil nach Anspruch 2 oder 4, dadurch gekennzeichnet, daß die Verbindung eine Rastverbindung ist.
- Ventil nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Schutzsieb (70) mit dem ersten Gehäuseteil (8) unlösbar verbunden, vorzugsweise geschweißt ist.
- Ventil nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Schutzsieb (70) an dem ersten Gehäuseteil (8) lösbar befestigt ist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1998139476 DE19839476A1 (de) | 1998-08-29 | 1998-08-29 | Ventil zum dosierten Einleiten von verflüchtigtem Brennstoff |
DE19839476 | 1998-08-29 | ||
PCT/DE1999/001104 WO2000012889A1 (de) | 1998-08-29 | 1999-04-13 | Ventil zum dosierten einleiten von verflüchtigtem brennstoff |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1056945A1 EP1056945A1 (de) | 2000-12-06 |
EP1056945B1 true EP1056945B1 (de) | 2004-12-22 |
Family
ID=7879207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99927656A Expired - Lifetime EP1056945B1 (de) | 1998-08-29 | 1999-04-13 | Ventil zum dosierten einleiten von verflüchtigtem brennstoff |
Country Status (6)
Country | Link |
---|---|
US (1) | US6253789B1 (de) |
EP (1) | EP1056945B1 (de) |
JP (1) | JP2002523680A (de) |
KR (1) | KR20010031422A (de) |
DE (2) | DE19839476A1 (de) |
WO (1) | WO2000012889A1 (de) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19935261A1 (de) * | 1999-07-27 | 2001-02-01 | Bosch Gmbh Robert | Ventil zum dosierten Einleiten von verflüchtigtem Brennstoff in einen Ansaugkanal einer Brennkraftmaschine |
ES2167275B1 (es) * | 2000-10-20 | 2003-10-16 | Bitron Ind Espana Sa | Electrovalvula reguladora de caudal de aire. |
JP2005155712A (ja) * | 2003-11-21 | 2005-06-16 | Mitsubishi Electric Corp | 電磁弁 |
DE102004033280A1 (de) * | 2004-07-09 | 2006-02-02 | Robert Bosch Gmbh | Einspritzventil zur Kraftstoffeinspritzung |
FR2877708B1 (fr) * | 2004-11-09 | 2008-04-18 | Johnson Contr Automotive Elect | Vanne ayant un corps integrant un filtre |
US8187758B2 (en) * | 2005-08-11 | 2012-05-29 | Ardica Technologies Inc. | Fuel cell apparatus with a split pump |
US20080000456A1 (en) * | 2006-06-30 | 2008-01-03 | Siemens Canada Limited | Cost-optimized canister purge valve |
DE102007005488B4 (de) * | 2006-12-15 | 2014-05-08 | Eagle Actuator Components Gmbh & Co. Kg | Ventil mit beweglicher Venturidüse |
WO2008148692A1 (de) * | 2007-06-05 | 2008-12-11 | Robert Bosch Gmbh | Magnetventilkopf eines magnetventils |
US8261741B2 (en) * | 2007-11-05 | 2012-09-11 | Resmed Limited | Method and apparatus for backspill prevention |
US8808410B2 (en) | 2009-07-23 | 2014-08-19 | Intelligent Energy Limited | Hydrogen generator and product conditioning method |
US8741004B2 (en) | 2009-07-23 | 2014-06-03 | Intelligent Energy Limited | Cartridge for controlled production of hydrogen |
US8940458B2 (en) | 2010-10-20 | 2015-01-27 | Intelligent Energy Limited | Fuel supply for a fuel cell |
WO2012058687A2 (en) | 2010-10-29 | 2012-05-03 | Ardica Technologies | Pump assembly for a fuel cell system |
US9206771B2 (en) | 2011-06-16 | 2015-12-08 | Continental Automotive Systems, Inc. | Canister purge valve with modular lower body having integral check valves |
US9169976B2 (en) | 2011-11-21 | 2015-10-27 | Ardica Technologies, Inc. | Method of manufacture of a metal hydride fuel supply |
TWM443100U (en) * | 2012-06-04 | 2012-12-11 | Xiamen Koge Micro Tech Co Ltd | Electromagnetic pressure relief valve |
JP6176215B2 (ja) * | 2014-09-25 | 2017-08-09 | 株式会社デンソー | 二段切替弁 |
US10941538B2 (en) * | 2018-04-13 | 2021-03-09 | Hohhot Sifang Engineering Quality Testing Center | Hammering system with electromagnetic power for dynamic pile testing |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5843626Y2 (ja) * | 1978-07-25 | 1983-10-03 | アイシン精機株式会社 | 集積型バルブセツト装置 |
DE3305039A1 (de) * | 1983-02-14 | 1984-08-16 | Robert Bosch Gmbh, 7000 Stuttgart | Elektromagnetisch betaetigbares ventil |
DE3938136A1 (de) * | 1989-11-16 | 1991-05-23 | Bosch Gmbh Robert | Elektromagnetisch betaetigbares ventil |
DE4023044A1 (de) * | 1990-07-20 | 1992-01-23 | Bosch Gmbh Robert | Ventil zum dosierten zumischen von verfluechtigtem kraftstoff zum kraftstoffluftgemisch einer brennkraftmaschine |
DE4102626C2 (de) * | 1991-01-30 | 2001-08-09 | Bosch Gmbh Robert | Elektromagnetbetätigtes 2/2-Wegeventil, insbesondere für hydraulische Kraftfahrzeug-Bremsanlagen mit einer Blockierschutz- und Antriebsschlupfregeleinrichtung |
DE4244113A1 (de) * | 1992-12-24 | 1994-06-30 | Bosch Gmbh Robert | Ventil zum dosierten Einleiten von verflüchtigtem Brennstoff in einen Ansaugkanal einer Brennkraftmaschine |
DE19516545A1 (de) * | 1995-05-05 | 1996-11-07 | Bosch Gmbh Robert | Ventil zum dosierten Einleiten von verflüchtigtem Brennstoff |
JP3593754B2 (ja) * | 1995-08-04 | 2004-11-24 | アイシン・エィ・ダブリュ株式会社 | 電磁弁 |
DE19533742A1 (de) * | 1995-09-12 | 1997-03-13 | Bosch Gmbh Robert | Adsorptionsfilter für ein Brennstoffverdunstungs-Rückhaltesystem eines Brennstofftanks einer Brennkraftmaschine |
DE19721562A1 (de) * | 1997-05-23 | 1998-11-26 | Bosch Gmbh Robert | Ventil zum dosierten Einleiten von verflüchtigtem Brennstoff |
-
1998
- 1998-08-29 DE DE1998139476 patent/DE19839476A1/de not_active Withdrawn
-
1999
- 1999-04-13 JP JP2000567842A patent/JP2002523680A/ja active Pending
- 1999-04-13 EP EP99927656A patent/EP1056945B1/de not_active Expired - Lifetime
- 1999-04-13 DE DE59911329T patent/DE59911329D1/de not_active Expired - Fee Related
- 1999-04-13 WO PCT/DE1999/001104 patent/WO2000012889A1/de not_active Application Discontinuation
- 1999-04-13 KR KR1020007004451A patent/KR20010031422A/ko not_active Application Discontinuation
- 1999-04-13 US US09/530,417 patent/US6253789B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR20010031422A (ko) | 2001-04-16 |
JP2002523680A (ja) | 2002-07-30 |
EP1056945A1 (de) | 2000-12-06 |
DE19839476A1 (de) | 2000-03-02 |
US6253789B1 (en) | 2001-07-03 |
DE59911329D1 (de) | 2005-01-27 |
WO2000012889A1 (de) | 2000-03-09 |
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