WO2004009990A1 - Kraftstoffkühlung im rücklauf eines druckübersetzten einspritzsystems - Google Patents
Kraftstoffkühlung im rücklauf eines druckübersetzten einspritzsystems Download PDFInfo
- Publication number
- WO2004009990A1 WO2004009990A1 PCT/EP2003/005764 EP0305764W WO2004009990A1 WO 2004009990 A1 WO2004009990 A1 WO 2004009990A1 EP 0305764 W EP0305764 W EP 0305764W WO 2004009990 A1 WO2004009990 A1 WO 2004009990A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fuel
- heat exchanger
- pressure pump
- bypass line
- internal combustion
- Prior art date
Links
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
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/20—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for cooling
-
- 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
-
- 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
-
- 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
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
-
- 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
- F02M53/00—Fuel-injection apparatus characterised by having heating, cooling or thermally-insulating 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2060/00—Cooling circuits using auxiliaries
- F01P2060/10—Fuel 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the invention relates to a device for delivering fuel for a common-rail injection system of an internal combustion engine with a first fuel filter downstream after a low-pressure pump and a high-pressure pump connected via a fuel line for an injection rail of the internal combustion engine, and a bypass line following the injection rail, which flows downstream the low-pressure pump connects to the fuel line, the bypass line having a heat exchanger and a second filter.
- a fuel circuit with a tank and a low-pressure pump connected via a fuel line is already known from US Pat. No. 5,794,598.
- a fuel filter and then a high pressure pump is provided, which connects to the internal combustion engine.
- a bypass is arranged, which connects to the fuel line again before or after the fuel filter, the bypass having a heat exchanger.
- the heat exchanger is designed as a fuel-air or as a fuel-coolant and coolant-air heat exchanger.
- An additional filter can also be arranged within the bypass.
- the invention has for its object to design and arrange a fuel circuit for a common rail injection system such that simple and inexpensive cooling is ensured.
- the heat exchanger is in operative connection with the cooling circuit of an air conditioning system and / or with the engine cooling of the internal combustion engine and / or with a charge air cooling.
- This ensures that the existing cooling capacity for the internal combustion engine is partially usable for cooling the fuel circuit.
- the proportion of the fuel volume flow delivered by the high-pressure pump, which is diverted via the bypass line is relatively large.
- the existing or required cooling capacity of the engine cooling system and / or the charge air cooling system is lower here increases.
- the available cooling capacity can thus be used for the engine cooling and / or the charge air cooling, since the cooling capacity is correspondingly low for the deactivated fuel component. According to the invention, these oppositely developing or required cooling capacities can be compensated for and optimally used.
- an additional possibility is that the second fuel filter is arranged in front of the heat exchanger with reference to the flow direction. This prevents contamination of the fuel filter and the high-pressure pump due to residues in the internal combustion engine. Especially with fuel filters with very low cooling performance contamination flow must be avoided.
- the heat exchanger is designed as a liquid coolant and / or air heat exchanger.
- the corresponding cooling capacity can thus be achieved.
- the heat exchanger has a common housing with the second fuel filter or that the heat exchanger is arranged on the second fuel filter. This arrangement simplifies installation and handling.
- the heat exchanger is arranged in a vehicle-fixed manner directly with a body or directly on the internal combustion engine, in front of the charge air or water cooler and / or in front of the air conditioning condenser.
- the arrangement of the heat exchanger can be adapted to the space available, in particular when retrofitting.
- the heat exchanger connects to a charge air tube of the internal combustion engine and is operatively connected to it.
- the cooling capacity required for the charge air can be used to cool the fuel if the charge air volume flow is low. This also results in very short fuel line lengths, since the charge air cooler is arranged directly in the area of the injection rail.
- a first check valve is provided within the bypass line with reference to the flow direction after the injection rail. The excess fuel thus flows through the first check valve into the bypass line and can do not flow back into the injection rail due to reversing pressure conditions.
- a second check valve is provided within the bypass line with respect to the flow direction after the heat exchanger or after the second filter. This second check valve prevents fuel from entering the bypass line from the low pressure pump.
- Figure 1 is a schematic representation of a fuel circuit with low pressure and high pressure pump and bypass line with heat exchanger.
- the fuel circuit according to FIG. 1 has a fuel tank 10, from which a fuel line 2 leads to an injection bar 4 of an internal combustion engine, not shown. After the fuel tank 10, a low pressure pump 1 is provided, to which a first fuel filter 7.1 is connected. After the first fuel filter 7.1, the fuel line 2 leads to a High-pressure pump 3, which supplies the injection bar 4 with highly compressed fuel.
- bypass line 5 leads from the injection rail 4 back to the fuel line 2.
- the bypass line 5 connects to the fuel line 2 between the low-pressure pump 1 and the high-pressure pump 3.
- a second fuel filter 7.2 and a heat exchanger 6 connected to it are provided within the bypass line 5.
- the heat exchanger 6 is in operative connection with a cooling circuit, not shown, or with the charge air cooler and / or the air conditioning system of the internal combustion engine.
- the high-pressure pump 3 delivers more fuel than is supplied to the internal combustion engine via the injectors 11.1 to 11.4, so that the excessly delivered fuel flows through the bypass line 5 or flows back.
- a return line 12 is provided to the bypass line 5, via which excess fuel from the injectors flows into the bypass line 5, the connection point of the return line being provided upstream of the second fuel filter 7.2 with respect to the flow direction.
- a first check valve 8 is provided within the bypass line 5, which prevents the fuel from flowing back from the bypass line 5 into the injection bar 4.
- a second check valve 9 is provided at the end of the bypass line 5 before connection to the fuel line 2, which prevents the backflow of fuel from the low-pressure pump 1 into the bypass line 5.
- the bypass line 5 connects in relation to the flow direction upstream of the first fuel filter 7.1 and the first fuel filter 7.1 optionally forms a structural unit with the second fuel filter 7.2.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2005-7000892A KR20050021507A (ko) | 2002-07-18 | 2003-06-03 | 증압된 분사시스템의 복귀 라인내 연료냉각장치 |
JP2004522169A JP4203474B2 (ja) | 2002-07-18 | 2003-06-03 | 高圧燃料噴射システムの戻り管路における燃料冷却装置 |
EP03732521A EP1523618A1 (de) | 2002-07-18 | 2003-06-03 | Kraftstoffkühlung im rücklauf eines druckübersetzten einspritzsystems |
US11/035,759 US7150270B2 (en) | 2002-07-18 | 2005-01-14 | Arrangement for handling the fuel supply in a common rail fuel injection system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10232514A DE10232514A1 (de) | 2002-07-18 | 2002-07-18 | Kraftstoffkühlung im Rücklauf eines druckübersetzten Einspritzsystems |
DE10232514.6 | 2002-07-18 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/035,759 Continuation-In-Part US7150270B2 (en) | 2002-07-18 | 2005-01-14 | Arrangement for handling the fuel supply in a common rail fuel injection system |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004009990A1 true WO2004009990A1 (de) | 2004-01-29 |
Family
ID=29796428
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/005764 WO2004009990A1 (de) | 2002-07-18 | 2003-06-03 | Kraftstoffkühlung im rücklauf eines druckübersetzten einspritzsystems |
Country Status (7)
Country | Link |
---|---|
US (1) | US7150270B2 (de) |
EP (1) | EP1523618A1 (de) |
JP (1) | JP4203474B2 (de) |
KR (1) | KR20050021507A (de) |
CN (1) | CN100400847C (de) |
DE (1) | DE10232514A1 (de) |
WO (1) | WO2004009990A1 (de) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102004050601B4 (de) * | 2004-10-15 | 2006-12-21 | Kangler, Wolfram, Dipl.-Phys. | Wärmetauschmodul |
JP4708276B2 (ja) * | 2006-07-12 | 2011-06-22 | トヨタ自動車株式会社 | 蓄圧式燃料噴射装置を有する内燃機関における燃料冷却装置 |
US20080053414A1 (en) * | 2006-08-30 | 2008-03-06 | Roy Allen Carr | RC regulator |
US7836867B2 (en) * | 2007-02-20 | 2010-11-23 | Ford Global Technologies, Llc | Diesel fuel cooling system and control strategy |
US7640919B1 (en) | 2008-01-31 | 2010-01-05 | Perkins Engines Company Limited | Fuel system for protecting a fuel filter |
US20090211556A1 (en) * | 2008-02-25 | 2009-08-27 | Perkins Engines Company Limited | System for maintaining a pump inlet pressure |
US7926470B2 (en) * | 2008-04-11 | 2011-04-19 | Caterpillar Inc. | Compact relief valve having damping functionality |
JP4961396B2 (ja) * | 2008-06-24 | 2012-06-27 | 日立建機株式会社 | 全旋回式作業車両の燃料回路 |
US7757672B2 (en) * | 2008-09-15 | 2010-07-20 | Gm Global Technology Operations, Inc. | Anti-clogging fuel pump module |
US7827971B2 (en) * | 2009-01-26 | 2010-11-09 | Gm Global Technology Operations, Inc. | Engine assembly with fuel filter gas removal apparatus |
US8251046B2 (en) * | 2009-07-30 | 2012-08-28 | Ford Global Technologies, Llc | Fuel system for an internal combustion engine |
US8516997B2 (en) * | 2010-05-28 | 2013-08-27 | Ford Global Technologies, Llc | Approach for controlling fuel flow with alternative fuels |
DE102010031486A1 (de) * | 2010-07-16 | 2012-01-19 | Robert Bosch Gmbh | Prüfstand für Fluidpumpen und Fluidinjektoren |
DE102010031481A1 (de) * | 2010-07-16 | 2012-01-19 | Robert Bosch Gmbh | Prüfstand und Verfahren zum Prüfen von Fluidpumpen und Fluidinjektoren |
US8944032B2 (en) * | 2012-04-03 | 2015-02-03 | Deere & Company | Diesel fuel feed system |
US8800538B2 (en) * | 2012-04-25 | 2014-08-12 | Deere & Company | Diesel fuel supply circuit |
CN102720610B (zh) * | 2012-06-29 | 2015-03-11 | 长城汽车股份有限公司 | 一种柴油发动机燃油供给系统 |
KR20140052532A (ko) * | 2012-10-24 | 2014-05-07 | 현대자동차주식회사 | Lpi 차량용 리턴 연료 냉각 시스템 및 그 제어방법 |
JP5929931B2 (ja) * | 2014-01-10 | 2016-06-08 | トヨタ自動車株式会社 | 車両用燃料冷却装置 |
DE102014213898A1 (de) | 2014-07-17 | 2016-01-21 | Volkswagen Aktiengesellschaft | Vorrichtung zum Fördern von Kraftstoff für ein Einspritzsystem einer Brennkraftmaschine und Verfahren zum Betreiben einer Vorrichtung zum Fördern von Kraftstoff für ein Einspritzsystem einer Brennkraftmaschine |
DE102015209581A1 (de) * | 2015-05-26 | 2016-12-01 | Deere & Company | Fahrzeugkabine |
CN105240174A (zh) * | 2015-07-06 | 2016-01-13 | 谭大钊 | 一种柴油发动机供油系统 |
CN105003367A (zh) * | 2015-07-17 | 2015-10-28 | 山推工程机械股份有限公司 | 推土机燃油温度控制方法、推土机燃油系统及推土机 |
CN104989565B (zh) * | 2015-07-17 | 2017-11-03 | 山推工程机械股份有限公司 | 推土机燃油冷却系统的控制方法、燃油冷却系统及推土机 |
KR102298973B1 (ko) | 2017-08-10 | 2021-09-06 | 현대자동차주식회사 | 에어필터 일체형 연료펌프 컨트롤러 |
JP2022549415A (ja) * | 2019-09-25 | 2022-11-25 | シエル・インターナシヨネイル・リサーチ・マーチヤツピイ・ベー・ウイ | 噴射器堆積物を低減するためのプロセス |
CN112211762B (zh) * | 2020-10-09 | 2021-11-19 | 安徽江淮汽车集团股份有限公司 | 发动机油路系统 |
US11846246B2 (en) * | 2021-05-27 | 2023-12-19 | Thermo King Llc | Methods and systems for controlling engine inlet pressure via a fuel delivery system of a transport climate control system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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EP0656470A1 (de) * | 1993-12-01 | 1995-06-07 | Siemens Automotive S.A. | Vorrichtung zur Begrenzung der Emission von verflüchtigten Kohlenwasserstoffen für ein Fahrzeug mit Brennkraftmaschine |
GB2292184A (en) * | 1994-08-06 | 1996-02-14 | Rover Group | I.c.engine fuel supply and recirculation system |
US5794598A (en) * | 1996-06-21 | 1998-08-18 | Stanadyne Automotive Corp. | Fuel circuit and circulation method for fuel injection system |
DE19963229A1 (de) * | 1999-12-27 | 2001-06-28 | Mahle Filtersysteme Gmbh | Einrichtung zur Versorgung eines Fahrzeug-Verbrennungsmotors mit Kraftstoff |
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US6457460B1 (en) * | 2000-11-13 | 2002-10-01 | Walbro Corporation | Fuel delivery system with recirculation cooler |
US6398119B1 (en) * | 2000-12-20 | 2002-06-04 | Caterpillar Inc. | Thermally controlled valve and fuel system using same |
US6626162B2 (en) * | 2001-04-05 | 2003-09-30 | Clean Fuels, Inc. | Diesel fuel recycling system and apparatus to reduce vapor emissions of diesel fuel |
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-
2002
- 2002-07-18 DE DE10232514A patent/DE10232514A1/de not_active Withdrawn
-
2003
- 2003-06-03 CN CNB038171333A patent/CN100400847C/zh not_active Expired - Fee Related
- 2003-06-03 EP EP03732521A patent/EP1523618A1/de not_active Withdrawn
- 2003-06-03 WO PCT/EP2003/005764 patent/WO2004009990A1/de active Application Filing
- 2003-06-03 JP JP2004522169A patent/JP4203474B2/ja not_active Expired - Fee Related
- 2003-06-03 KR KR10-2005-7000892A patent/KR20050021507A/ko not_active Application Discontinuation
-
2005
- 2005-01-14 US US11/035,759 patent/US7150270B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0656470A1 (de) * | 1993-12-01 | 1995-06-07 | Siemens Automotive S.A. | Vorrichtung zur Begrenzung der Emission von verflüchtigten Kohlenwasserstoffen für ein Fahrzeug mit Brennkraftmaschine |
GB2292184A (en) * | 1994-08-06 | 1996-02-14 | Rover Group | I.c.engine fuel supply and recirculation system |
US5794598A (en) * | 1996-06-21 | 1998-08-18 | Stanadyne Automotive Corp. | Fuel circuit and circulation method for fuel injection system |
DE19963229A1 (de) * | 1999-12-27 | 2001-06-28 | Mahle Filtersysteme Gmbh | Einrichtung zur Versorgung eines Fahrzeug-Verbrennungsmotors mit Kraftstoff |
Also Published As
Publication number | Publication date |
---|---|
US7150270B2 (en) | 2006-12-19 |
JP4203474B2 (ja) | 2009-01-07 |
US20050150480A1 (en) | 2005-07-14 |
CN1668840A (zh) | 2005-09-14 |
EP1523618A1 (de) | 2005-04-20 |
KR20050021507A (ko) | 2005-03-07 |
CN100400847C (zh) | 2008-07-09 |
DE10232514A1 (de) | 2004-01-29 |
JP2005539167A (ja) | 2005-12-22 |
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