EP0307739A2 - Désaérateur pour une installation de carburant des moteurs à combustion interne - Google Patents
Désaérateur pour une installation de carburant des moteurs à combustion interne Download PDFInfo
- Publication number
- EP0307739A2 EP0307739A2 EP88114398A EP88114398A EP0307739A2 EP 0307739 A2 EP0307739 A2 EP 0307739A2 EP 88114398 A EP88114398 A EP 88114398A EP 88114398 A EP88114398 A EP 88114398A EP 0307739 A2 EP0307739 A2 EP 0307739A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve seat
- passage
- fuel
- venting device
- facing
- 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
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 25
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 8
- 238000009434 installation Methods 0.000 title abstract 2
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 238000009423 ventilation Methods 0.000 claims description 11
- 238000013022 venting Methods 0.000 claims description 10
- 239000002828 fuel tank Substances 0.000 claims description 3
- 230000000740 bleeding effect Effects 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0023—Valves in the fuel supply and return system
-
- 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/007—Venting means
-
- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0047—Layout or arrangement of systems for feeding fuel
- F02M37/0052—Details on the fuel return circuit; Arrangement of pressure regulators
-
- 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
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/20—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines characterised by means for preventing vapour lock
Definitions
- the invention relates to a ventilation device for a fuel system of an internal combustion engine, according to the preamble of claim 1.
- a ventilation device which is designed as a ventilation hole and is arranged downstream of a fuel filter in a cross-connection between the supply line and the return line. That from the fuel filter The venting quantity escapes through the ventilation bore and finally back into the fuel tank together with the flushing quantity pressed by the injection pump.
- the throttling passage In order to exclude the risk of clogging with such a venting or throttling bore, the throttling passage must have a certain minimum cross section reduces the delivery pressure, there is an impairment of the engine performance and the reduced flushing volume returned by the high-pressure injection pump has an adverse effect on the pump cooling.
- the invention has for its object to eliminate the disadvantages described and to provide an improved ventilation device in a fuel system of the type described, which ensures permanent ventilation during operation of the internal combustion engine, but also allows that while the engine is at a standstill Leakages in the pipe system can prevent flow from the return pipe or flow pipe.
- the measure according to the invention results in a valve-like function.
- a pressure builds up in the feed line, which lifts the closing element from the valve seat on the input side, such that air already in the fuel system, due to the low flow resistance, allows this closing element to flow freely around the connected return line and thus into the tank .
- the closing element raises it further due to the higher flow resistance and presses it largely sealingly against the valve seat on the outlet side.
- the gases continuously escaping from the fuel in normal driving operation and collected in the filter upper part can continue to escape in this position of the closing member without significant amounts of fuel passing through.
- the closing element comes against by gravity Overlying valve seat to the system and creates a seal in the opposite direction, so that the previous connection between the flow and return line is reliably interrupted and the backflow is prevented.
- a designated with 1 fuel system for an air-compressing internal combustion engine 2 contains a ventilation device, which is designed as a double-acting changeover valve 3 and is inserted into a fuel filter 4 so that a supply line 6 starting from a feed pump 5 and connected to the fuel filter 4 and containing unfiltered fuel contains Return line 7 can be connected, which leads from a high-pressure injection pump 8 to a fuel tank 9.
- the changeover valve 3 consists of a hollow screw body screwed into the fuel filter 4 with a centrally running stepped blind bore 10, the stepping of which forms an overhead valve seat 11.
- An underlying valve seat 12 is formed by a ring 13 pressed into the blind bore 10.
- a closing member 14 is arranged such that it can move freely, depending on the operating state of the internal combustion engine 2, on one of the two valve seats 11, 12.
- 2 is a ball, but it can also be a plate-shaped part.
- the ball has a defined surface roughness, through which vent gases can in principle pass over the hollow screw body via the blind bore 10 and a continuous transverse bore 15.
- a ring piece 16 connects the transverse bore 15 to the return line 7.
- the valve seat 11 can have a defined surface roughness or one or more small notches without significant amounts of fuel being removed.
- the ventilation is permanently ensured.
- the valve seat 13 below and the ball have the function of a check valve.
- the ball can be loaded by a spring 17. The spring force is low, so that the opening pressure during fuel delivery is lower than that of the overflow valve (not shown) on the injection pump 8.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873731206 DE3731206A1 (de) | 1987-09-17 | 1987-09-17 | Entlueftungsvorrichtung fuer eine kraftstoffanlage von brennkraftmaschinen |
DE3731206 | 1987-09-17 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0307739A2 true EP0307739A2 (fr) | 1989-03-22 |
EP0307739A3 EP0307739A3 (en) | 1989-05-31 |
EP0307739B1 EP0307739B1 (fr) | 1992-11-11 |
Family
ID=6336203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88114398A Expired - Lifetime EP0307739B1 (fr) | 1987-09-17 | 1988-09-03 | Désaérateur pour une installation de carburant des moteurs à combustion interne |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0307739B1 (fr) |
DE (1) | DE3731206A1 (fr) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996005423A2 (fr) * | 1994-08-06 | 1996-02-22 | Rover Group Limited | Systeme d'alimentation en carburant d'un moteur a combustion interne |
GB2327460A (en) * | 1997-07-23 | 1999-01-27 | Pall Corp | Engine fuel system air vent including an oleophobic filter |
EP1106884A2 (fr) | 1999-12-07 | 2001-06-13 | Hoerbiger Hydraulik GmbH | Soupape de retenue avec dispositif d'étranglement et son procédé de production |
EP1215390A1 (fr) * | 2000-12-14 | 2002-06-19 | Filtrauto | Dispositif d'alimentation en carburant pour moteur à combustion interne et filtre à carburant pour un tel dispositif |
WO2003031852A1 (fr) * | 2001-10-10 | 2003-04-17 | Volvo Lastvagnar Ab | Soupape combinee d'un systeme de carburant destinee a un moteur a combustion interne et un tel systeme de carburant |
WO2004001217A1 (fr) * | 2002-06-19 | 2003-12-31 | Volvo Lastvagnar Ab | Systeme d'injection de carburant pour moteur a combustion interne |
EP1088984A3 (fr) * | 1999-09-30 | 2004-01-07 | Siemens Aktiengesellschaft | Système d'injection pour un moteur à combustion interne |
WO2007007260A2 (fr) * | 2005-07-07 | 2007-01-18 | Ford Otomotiv Sanayi Anonim Sirketi | Tete de filtre a carburant |
WO2008020219A2 (fr) * | 2006-08-18 | 2008-02-21 | Parker Hannifin (Uk) Limited | Système de désaération |
CN102734016A (zh) * | 2011-04-11 | 2012-10-17 | 派克汉尼汾液压系统(上海)有限公司 | 燃油滤清器及燃油滤清器座 |
CN104500294A (zh) * | 2014-12-29 | 2015-04-08 | 江铃汽车股份有限公司 | 一种高压油泵的排气结构 |
WO2018065235A1 (fr) * | 2016-10-07 | 2018-04-12 | Robert Bosch Gmbh | Élément d'étranglement, en particulier pour une pompe haute pression, en particulier d'un circuit basse pression d'un système d'injection de carburant |
EP3567242A3 (fr) * | 2018-05-09 | 2020-03-04 | Hydac Fluidcarecenter GmbH | Dispositif d'alimentation en carburant |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4032377A1 (de) * | 1990-10-12 | 1992-04-16 | Daimler Benz Ag | Kraftstoffversorgungseinrichtung mit einer entlueftungsvorrichtung fuer eine luftverdichtende brennkraftmaschine |
DE19616493B4 (de) * | 1995-05-05 | 2005-08-11 | Volkswagen Ag | Entlüftungseinrichtung an einem Kraftstoffilter |
DE19629627C2 (de) * | 1996-07-23 | 1998-09-10 | Daimler Benz Ag | Sicherheitsvorrichtung zur Vermeidung des Kraftstoffaustritts |
DE19849718A1 (de) * | 1998-10-28 | 2000-05-04 | Bayerische Motoren Werke Ag | Kraftstoff-Fördersystem |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1979410U (de) * | 1966-07-16 | 1968-02-22 | Daimler Benz Ag | Brennstoff-foerdereinrichtung fuer einspritzbrennkraftmaschinen. |
US4079717A (en) * | 1975-06-23 | 1978-03-21 | Nissan Motor Company, Ltd. | Fuel injection system of internal combustion engine |
DE2952016A1 (de) * | 1979-12-22 | 1981-06-25 | Daimler-Benz Ag, 7000 Stuttgart | Kraftstoffilter fuer luftverdichtende einspritzbrennkraftmaschinen |
DE8522528U1 (de) * | 1985-08-05 | 1985-10-10 | Jenbacher Werke Vertriebsgesellschaft mbH, 7016 Gerlingen | Vorrichtung zum selbsttätigen Entlüften von Kraftstoffleitungen von Dieselmotoren |
GB2157803A (en) * | 1984-04-25 | 1985-10-30 | Facet Enterprises | Vent-relief valve for a wet motor gerotor fuel pump |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2344002A1 (de) * | 1973-08-31 | 1975-03-06 | Hatz Motoren | Einspritzbrennkraftmaschine |
DE2356399A1 (de) * | 1973-11-12 | 1975-05-15 | Hatz Motoren | Einspritzbrennkraftmaschine |
-
1987
- 1987-09-17 DE DE19873731206 patent/DE3731206A1/de active Granted
-
1988
- 1988-09-03 EP EP88114398A patent/EP0307739B1/fr not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1979410U (de) * | 1966-07-16 | 1968-02-22 | Daimler Benz Ag | Brennstoff-foerdereinrichtung fuer einspritzbrennkraftmaschinen. |
US4079717A (en) * | 1975-06-23 | 1978-03-21 | Nissan Motor Company, Ltd. | Fuel injection system of internal combustion engine |
DE2952016A1 (de) * | 1979-12-22 | 1981-06-25 | Daimler-Benz Ag, 7000 Stuttgart | Kraftstoffilter fuer luftverdichtende einspritzbrennkraftmaschinen |
GB2157803A (en) * | 1984-04-25 | 1985-10-30 | Facet Enterprises | Vent-relief valve for a wet motor gerotor fuel pump |
DE8522528U1 (de) * | 1985-08-05 | 1985-10-10 | Jenbacher Werke Vertriebsgesellschaft mbH, 7016 Gerlingen | Vorrichtung zum selbsttätigen Entlüften von Kraftstoffleitungen von Dieselmotoren |
Cited By (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996005423A3 (fr) * | 1994-08-06 | 1996-05-09 | Rover Group | Systeme d'alimentation en carburant d'un moteur a combustion interne |
WO1996005423A2 (fr) * | 1994-08-06 | 1996-02-22 | Rover Group Limited | Systeme d'alimentation en carburant d'un moteur a combustion interne |
GB2327460A (en) * | 1997-07-23 | 1999-01-27 | Pall Corp | Engine fuel system air vent including an oleophobic filter |
GB2327460B (en) * | 1997-07-23 | 2000-10-25 | Pall Corp | Engine fuel systems |
US6220228B1 (en) | 1997-07-23 | 2001-04-24 | Pall Corporation | Engine fuel systems |
EP1088984A3 (fr) * | 1999-09-30 | 2004-01-07 | Siemens Aktiengesellschaft | Système d'injection pour un moteur à combustion interne |
EP1106884A2 (fr) | 1999-12-07 | 2001-06-13 | Hoerbiger Hydraulik GmbH | Soupape de retenue avec dispositif d'étranglement et son procédé de production |
EP1215390A1 (fr) * | 2000-12-14 | 2002-06-19 | Filtrauto | Dispositif d'alimentation en carburant pour moteur à combustion interne et filtre à carburant pour un tel dispositif |
FR2818322A1 (fr) | 2000-12-14 | 2002-06-21 | Filtrauto | Dispositif d'alimentation en carburant pour moteur a combustion interne et filtre a carburant pour un tel dispositif |
WO2003031852A1 (fr) * | 2001-10-10 | 2003-04-17 | Volvo Lastvagnar Ab | Soupape combinee d'un systeme de carburant destinee a un moteur a combustion interne et un tel systeme de carburant |
US7273041B2 (en) | 2001-10-10 | 2007-09-25 | Volvo Lastvagnar Ab | Fuel system combination valve for an internal combustion engine and such a fuel system |
WO2004001217A1 (fr) * | 2002-06-19 | 2003-12-31 | Volvo Lastvagnar Ab | Systeme d'injection de carburant pour moteur a combustion interne |
CN100354518C (zh) * | 2002-06-19 | 2007-12-12 | 沃尔沃拉斯特瓦格纳公司 | 内燃机燃油喷射系统 |
US7201153B2 (en) | 2002-06-19 | 2007-04-10 | Volvo Lastvagnar Ab | Fuel injection system for an internal combustion engine |
WO2007007260A3 (fr) * | 2005-07-07 | 2007-03-29 | Ford Otomotiv Sanayi As | Tete de filtre a carburant |
WO2007007260A2 (fr) * | 2005-07-07 | 2007-01-18 | Ford Otomotiv Sanayi Anonim Sirketi | Tete de filtre a carburant |
WO2008020219A2 (fr) * | 2006-08-18 | 2008-02-21 | Parker Hannifin (Uk) Limited | Système de désaération |
WO2008020219A3 (fr) * | 2006-08-18 | 2008-05-02 | Parker Hannifin Uk Ltd | Système de désaération |
GB2441309B (en) * | 2006-08-18 | 2011-03-30 | Parker Hannifin Corp | De-aeration system |
US7938958B2 (en) | 2006-08-18 | 2011-05-10 | Parker Hannifin (Uk) Limited | De-aeration system |
CN102734016A (zh) * | 2011-04-11 | 2012-10-17 | 派克汉尼汾液压系统(上海)有限公司 | 燃油滤清器及燃油滤清器座 |
CN104500294A (zh) * | 2014-12-29 | 2015-04-08 | 江铃汽车股份有限公司 | 一种高压油泵的排气结构 |
WO2018065235A1 (fr) * | 2016-10-07 | 2018-04-12 | Robert Bosch Gmbh | Élément d'étranglement, en particulier pour une pompe haute pression, en particulier d'un circuit basse pression d'un système d'injection de carburant |
CN109790807A (zh) * | 2016-10-07 | 2019-05-21 | 罗伯特·博世有限公司 | 节流元件、尤其用于高压泵的节流元件、尤其燃料喷射系统的低压回路的节流元件 |
CN109790807B (zh) * | 2016-10-07 | 2021-07-06 | 罗伯特·博世有限公司 | 节流元件、高压泵、燃料喷射系统的低压回路 |
EP3567242A3 (fr) * | 2018-05-09 | 2020-03-04 | Hydac Fluidcarecenter GmbH | Dispositif d'alimentation en carburant |
Also Published As
Publication number | Publication date |
---|---|
DE3731206C2 (fr) | 1990-07-05 |
EP0307739A3 (en) | 1989-05-31 |
EP0307739B1 (fr) | 1992-11-11 |
DE3731206A1 (de) | 1989-03-30 |
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