EP0426780A1 - Kraftstoffverteiler für kraftstoffeinspritzanlagen von brennkraftmaschinen. - Google Patents
Kraftstoffverteiler für kraftstoffeinspritzanlagen von brennkraftmaschinen.Info
- Publication number
- EP0426780A1 EP0426780A1 EP19900904598 EP90904598A EP0426780A1 EP 0426780 A1 EP0426780 A1 EP 0426780A1 EP 19900904598 EP19900904598 EP 19900904598 EP 90904598 A EP90904598 A EP 90904598A EP 0426780 A1 EP0426780 A1 EP 0426780A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel
- line
- fuel line
- distributor
- opening
- 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
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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
-
- 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
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/005—Arrangement of electrical wires and connections, e.g. wire harness, sockets, plugs; Arrangement of electronic control circuits in or on fuel injection apparatus
-
- 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
- F02M53/04—Injectors with 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
- F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
- F02M69/465—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails
Definitions
- the invention relates to a fuel distributor for fuel injection systems of internal combustion engines of the type defined in the preamble of claim 1.
- Such a fuel distributor is described for example in DE 37 30 571 AI. Due to the fuel-filled annular space surrounding the fuel injection valves, these are directly surrounded by fuel and are thereby cooled. Cooling the
- Fuel injection valves reduce their thermal load and thereby improve the hot start behavior of the internal combustion engine as a whole.
- the fuel dispenser according to the invention with the characterizing features of claim 1 has the advantage that a flushing of the fuel injectors is forced through almost 360 ° by the flow orifice assigned to each fuel injection valve in the fuel line. In this way, the valve housing is flushed with fuel over a larger housing area and thus improves the cooling effect.
- the improved cooling leads to a lower temperature level in the fuel injection valves during the operating phase of the internal combustion engine, so that the maximum temperature reached in the shutdown phase of the internal combustion engine in the
- Fuel injection valves are already lower. Due to this lower temperature level, the formation of bubbles in the fuel is less during the shutdown phase of the internal combustion engine.
- hot start the entire surface of the valve housing is cooled quickly and intensively and fresh, cool fuel is supplied to the valve chamber. The vapors condense in the fuel and are partly entrained so that the hot start behavior of the internal combustion engine is significantly improved.
- FIG. 1 is a side view of a fuel distributor for a fuel injection system of a four-cylinder internal combustion engine
- Fig. 3 shows a section along the line III-III in Fig.l in an enlarged view.
- Fuel distributor for a fuel injection system of a four-cylinder internal combustion engine is used for mounting
- Fuel injection valves 10 and the fuel line which is smaller in diameter and runs inside the supply line 13, serves as return line 14 for returning fuel to a fuel tank (not shown).
- Feed line 13 and return line 14 are connected to one another via a pressure control valve 15 and are connected at their free ends to a connecting piece 16 and 17, respectively.
- the direction of flow of the fuel is marked by arrows on the connecting piece 16, 17.
- the feed line 13 is guided tangentially past the receiving bores 12 and communicates with the receiving bores 12 via openings 18 penetrating through the bore or line wall.
- a fuel injection valve 10 is inserted in a liquid-tight manner in each receiving bore 12, which is effected by means of two O-rings 19, 20 (FIG. 3).
- the stepped valve housing 21 is supported with an annular flange 22 on an annular shoulder 23 coaxially surrounding the receiving bore 12 and protrudes from the receiving bore 12 with an orifice 24, which has a fuel spray opening that cannot be seen at the end. Due to the gradation of the valve housing 21, an annular space 25 is formed between the valve housing 21 and the bore wall of the receiving bore 12, which is always with
- Fuel is full. Fuel is supplied from this annular space 25 to a valve space present in the interior of the valve housing 21 via a sieve body 26. After inserting the fuel injection valves 10 into the receiving bores 12, the one on the distributor housing 11 is the same
- Fuel injector 10 is assigned and is used to make electrical contact.
- flow orifices 29 are arranged in the latter in association with each receiving bore 12, which are approximately centered on the opening 18 and thus on the receiving bore 12 or Valve housing 21 of the fuel injection valve 10 are. These flow orifices 29 force the fuel to flow around the associated valve housing 21 by almost 360 °.
- Each flow orifice 29 is formed by a disc 30 which is transverse to the opening 18 and
- the return line 14 has a cross-sectional profile that deviates from the circular shape, one dimension of which is larger than the dimension perpendicular to it. In the exemplary embodiment in FIG. 3, this cross-sectional profile is approximately rectangular with rounded corners.
- Each disc 30 has a central opening 31, the
- Opening cross-section corresponds approximately to the cross-sectional profile of the return line 14, but is rotated 90 ° with respect to this.
- the discs 30 are rotated 90 ° relative to their end position with the opening 31 pushed over the return line 14 and in their respective
- the fuel line 14 can take over the function of the supply line and the fuel line 13 can take over the function of the return line.
- the connecting piece 16 is to be connected to the fuel tank and the connecting piece 17 to the feed pump, also not shown, which draws the fuel from the fuel tank and delivers it to the fuel injection valves 10.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3914487A DE3914487A1 (de) | 1989-05-02 | 1989-05-02 | Kraftstoffverteiler fuer kraftstoffeinspritzanlagen von brennkraftmaschinen |
DE3914487 | 1989-05-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0426780A1 true EP0426780A1 (de) | 1991-05-15 |
EP0426780B1 EP0426780B1 (de) | 1993-06-02 |
Family
ID=6379934
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90904598A Expired - Lifetime EP0426780B1 (de) | 1989-05-02 | 1990-03-23 | Kraftstoffverteiler für kraftstoffeinspritzanlagen von brennkraftmaschinen |
Country Status (7)
Country | Link |
---|---|
US (1) | US5143039A (de) |
EP (1) | EP0426780B1 (de) |
JP (1) | JPH04500112A (de) |
KR (1) | KR920700347A (de) |
BR (1) | BR9006752A (de) |
DE (2) | DE3914487A1 (de) |
WO (1) | WO1990013741A1 (de) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5035221A (en) * | 1989-01-11 | 1991-07-30 | Martin Tiby M | High pressure electronic common-rail fuel injection system for diesel engines |
IT1234285B (it) * | 1989-06-13 | 1992-05-14 | Weber Srl | Collettore di carburante preferibilmente in materiale plastico atto adalimentare carburante agli iniettori di un dispositivo di alimentazione per un motore a combustione interna |
DE4013537A1 (de) * | 1990-04-27 | 1991-10-31 | Bosch Gmbh Robert | Kontaktierungsleiste zur gemeinsamen elektrischen kontaktierung mehrerer elektrisch erregbarer aggregate von brennkraftmaschinen |
US5086743A (en) * | 1990-12-20 | 1992-02-11 | Ford Motor Company | Integrally formed and tuned fuel rail/injectors |
DE4111988C2 (de) * | 1991-04-12 | 1994-07-14 | Bosch Gmbh Robert | Brennstoffverteiler |
DE4115039A1 (de) * | 1991-05-08 | 1992-11-12 | Bosch Gmbh Robert | Brennstoffverteiler |
DE4206370A1 (de) * | 1991-05-17 | 1992-11-19 | Mann & Hummel Filter | Steuerleiste in kunststoffkompaktbauweise |
DE4128086A1 (de) * | 1991-08-24 | 1993-02-25 | Bosch Gmbh Robert | Brennstoffverteiler |
EP0536091A1 (de) * | 1991-09-30 | 1993-04-07 | Giuseppe Baggioli | Vorrichtung zum Verteilen und zum Einspritzen von Kraftstoff in die Zylinder eines Verbrennungsmotors |
DE4205709A1 (de) * | 1992-02-25 | 1993-08-26 | Bosch Gmbh Robert | Gasverteiler fuer brennstoffeinspritzanlagen |
IT227559Y1 (it) * | 1992-05-21 | 1997-12-15 | Weber Srl | Collettore per un dispositivo di alimentazione di carburante ad un mo- tore a combustione interna. |
US5408971A (en) * | 1993-08-09 | 1995-04-25 | Brunswick Corporation | Fuel rail construction for an electronic fuel injected engine |
DE19515535A1 (de) * | 1995-04-27 | 1996-10-31 | Bayerische Motoren Werke Ag | Kraftstoffverteilerleitung |
US5718206A (en) * | 1995-10-12 | 1998-02-17 | Nippondenso Co., Ltd. | Fuel supply system having fuel rail |
DE19640480B4 (de) * | 1996-09-30 | 2004-04-22 | Robert Bosch Gmbh | Kraftstoffhochdruckspeicher |
US5806494A (en) * | 1997-08-06 | 1998-09-15 | Caterpillar Inc. | Hydraulically actuated fuel injection system with integrated actuation fluid rail and injectors |
JPH11351095A (ja) * | 1998-06-11 | 1999-12-21 | Toyota Motor Corp | 筒内噴射式内燃機関のデリバリパイプ |
JP2000265922A (ja) * | 1999-03-16 | 2000-09-26 | Honda Motor Co Ltd | 燃料噴射装置 |
CA2384119A1 (en) | 1999-09-10 | 2001-03-15 | International Engine Intellectual Property Company, Llc | Actuating fluid delivery system for a fuel injector |
US6148798A (en) * | 1999-10-01 | 2000-11-21 | Delphi Technologies, Inc. | Coaxial flow through fuel rail with a damper for a recirculating fuel system |
US6467457B1 (en) | 1999-10-25 | 2002-10-22 | International Engine Intellectual Property Company, L.L.C. | Injector actuating fluid check and methods |
US6374806B1 (en) | 1999-10-25 | 2002-04-23 | International Truck And Engine Corp. | Actuating fluid delivery system for a fuel injector |
DE10055675A1 (de) * | 2000-11-10 | 2002-05-16 | Volkswagen Ag | Einrichtung zur Verteilung von Kraftstoff für eine Brennktaftmaschine |
US8434457B2 (en) | 2010-06-29 | 2013-05-07 | Caterpillar Inc. | System and method for cooling fuel injectors |
CN106837644A (zh) * | 2017-04-18 | 2017-06-13 | 广西玉柴机器股份有限公司 | 多功能燃油分配器 |
US11708810B1 (en) * | 2022-05-17 | 2023-07-25 | Caterpillar Inc. | Fuel system and engine head assembly having double-walled fuel connector for cooling fuel return |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB884865A (en) * | 1959-10-12 | 1961-12-20 | Ass Elect Ind | Improvements in and relating to manifolds suitable for connection to a plurality of valves |
US3481365A (en) * | 1967-10-31 | 1969-12-02 | Du Pont | Flow diverting apparatus for viscous liquids |
US3736955A (en) * | 1971-06-14 | 1973-06-05 | A Schlesser | Irrigation conduit stream divider |
DE2416803A1 (de) * | 1974-04-06 | 1975-10-16 | Daimler Benz Ag | Elektronisch gesteuerte benzin-einspritzanlage |
DE3010613A1 (de) * | 1980-03-20 | 1981-10-01 | Robert Bosch Gmbh, 7000 Stuttgart | Kraftstoffeinspritzanlage |
US4601275A (en) * | 1982-08-23 | 1986-07-22 | General Motors Corporation | Fuel rail |
US4609009A (en) * | 1985-12-11 | 1986-09-02 | Environmental Elements Corp. | Stepped plenum system |
US4751904A (en) * | 1986-11-07 | 1988-06-21 | Sharon Manufacturing Company | Low profile fuel injection rail |
DE3644552A1 (de) * | 1986-12-24 | 1988-07-07 | Pierburg Gmbh | Brennstoffverteilerleiste fuer ottomotoren |
US4922958A (en) * | 1987-08-03 | 1990-05-08 | Colt Industries Inc. | Manifold for distributing a fluid and method for making same |
DE3730571C2 (de) * | 1987-09-11 | 1998-07-02 | Bosch Gmbh Robert | Vorrichtung zur Halterung, Kraftstoffversorgung und elektrischen Kontaktierung von elektromagnetisch betätigbaren Kraftstoffeinspritzventilen |
JP2694276B2 (ja) * | 1988-04-18 | 1997-12-24 | スズキ株式会社 | 燃料供給装置 |
-
1989
- 1989-05-02 DE DE3914487A patent/DE3914487A1/de not_active Withdrawn
-
1990
- 1990-03-23 US US07/634,227 patent/US5143039A/en not_active Expired - Fee Related
- 1990-03-23 JP JP2504638A patent/JPH04500112A/ja active Pending
- 1990-03-23 DE DE9090904598T patent/DE59001612D1/de not_active Expired - Fee Related
- 1990-03-23 WO PCT/DE1990/000232 patent/WO1990013741A1/de active IP Right Grant
- 1990-03-23 KR KR1019900702479A patent/KR920700347A/ko not_active Application Discontinuation
- 1990-03-23 BR BR909006752A patent/BR9006752A/pt not_active IP Right Cessation
- 1990-03-23 EP EP90904598A patent/EP0426780B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9013741A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE59001612D1 (de) | 1993-07-08 |
EP0426780B1 (de) | 1993-06-02 |
BR9006752A (pt) | 1991-08-06 |
US5143039A (en) | 1992-09-01 |
WO1990013741A1 (de) | 1990-11-15 |
DE3914487A1 (de) | 1990-11-08 |
KR920700347A (ko) | 1992-02-19 |
JPH04500112A (ja) | 1992-01-09 |
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Legal Events
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