WO2001009507A1 - Kraftstoffhochdruckspeicher - Google Patents
Kraftstoffhochdruckspeicher Download PDFInfo
- Publication number
- WO2001009507A1 WO2001009507A1 PCT/DE2000/002531 DE0002531W WO0109507A1 WO 2001009507 A1 WO2001009507 A1 WO 2001009507A1 DE 0002531 W DE0002531 W DE 0002531W WO 0109507 A1 WO0109507 A1 WO 0109507A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- blind hole
- pressure fuel
- pressure
- fuel
- high pressure
- 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
-
- 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
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
- F02M55/025—Common rails
Definitions
- the invention relates to a high-pressure fuel accumulator for a common rail fuel injection system of an internal combustion engine, having a tubular base body which has a blind hole running in the longitudinal direction and a plurality of connections.
- Such a high-pressure fuel accumulator is e.g. described in DE 195 48 611.
- a high-pressure pump possibly with the aid of a prefeed pump, conveys the fuel to be injected from a tank into the central high-pressure fuel reservoir, which is referred to as the common rail.
- Fuel lines lead from the rail to the individual injectors, which are assigned to the cylinders of the internal combustion engine. The injectors are dependent on the
- the object of the invention is a
- high-pressure fuel accumulators of the type described in the introduction in such a way that the high-pressure strength is improved and the service life is extended.
- the high-pressure fuel reservoir according to the invention should be simple in construction and inexpensive to produce.
- a high-pressure fuel accumulator for a common rail fuel injection system of an internal combustion engine, with a tubular base body which has a longitudinal blind bore and several connections, in that a sealing plug is arranged in the closed end of the blind bore.
- the sealing plug serves to seal the geometry produced by the drilling tool, which is unfavorable with regard to high-pressure strength, at the closed end of the blind hole against the section of the blind hole which is used to hold the fuel.
- This provides the advantage that the geometry, which is unfavorable with regard to high-pressure strength, does not have to be reworked mechanically at the closed end of the blind hole.
- the sealing plug also provides fluidic advantages that are noticeable in the operation of the high-pressure fuel accumulator.
- a special embodiment of the invention is characterized in that the blind hole has a smaller diameter at its closed end than in the section of the blind hole used to hold the fuel.
- the blind hole has a smaller diameter at its closed end than in the section of the blind hole used to hold the fuel.
- the sealing plug has the shape of a ball.
- the sealing plug can also have the shape of a circular cylinder, among other things.
- the sealing plug twists or cant in the blind hole.
- the ball shape makes it easier to insert the ball, particularly in the case of a stepped blind hole.
- a further special embodiment of the invention is characterized in that the sealing plug is pressed into the closed end of the blind hole. It is also possible to e.g. with the help of a thread or a separate fixing device in the closed end of the blind hole. In contrast, the pressing in has the advantage that no additional individual parts are required and the manufacturing effort is low.
- Another special embodiment of the invention is characterized in that the open end of the blind hole is closed by a pressure sensor. This provides the advantage that no additional high pressure seal is required for the pressure sensor. A plug for the open end of the blind hole can be omitted.
- FIG. 1 an embodiment of a high-pressure fuel accumulator according to the invention is shown in longitudinal section.
- the high-pressure fuel reservoir shown comprises a tubular base body 1.
- a blind hole bore 2 extends in the axial direction in the tubular base body 1.
- the blind bore bore 2 comprises a section 3 with a larger diameter and a section 4 with a smaller diameter.
- the double tip 5 of a deep drill is shown at the closed end of section 4 of the blind hole 2.
- the resulting annular depression in the bottom of the bore is unfavorable from a fluidic point of view and with regard to the high pressure resistance.
- the geometry created by a normal 120 ° bit tip behaves better, but overall it is also unfavorable. Therefore, the bottom of the hole, e.g. can be reworked by rounding.
- a closure ball 6 is tightly pressed into section 4 of the blind hole 2.
- the sealing ball 6 protects the end region of the blind hole 2, which is unfavorable with regard to the high pressure resistance.
- no mechanical finishing in the form of rounding has to be carried out in this critical region.
- the high-pressure fuel reservoir according to the invention achieves very good high-pressure resistance.
- a pressure sensor 8 is inserted in a high pressure-tight manner. This keeps the number of high pressure seals small.
- the high pressure seals are usually critical with regard to their tightness and require a high
- High-pressure fuel storage as a blind hole saves a high-pressure sealing point compared to a high-pressure fuel storage with a through hole, which is closed by two sealing plugs.
- connections 10, 11, 12 and 13 for high-pressure fuel lines are formed on the tubular base body 1 of the high-pressure fuel reservoir according to the invention.
- the high-pressure fuel lines create a connection between the high-pressure fuel reservoir and a high-pressure fuel pump (not shown) and injectors (not shown).
- fastening elements 14, 15 and 16 are formed on the tubular base body 1.
- the fastening elements 14, 15 and 16 serve to mount the high-pressure fuel accumulator according to the invention on the internal combustion engine.
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 |
---|---|---|---|
KR1020017004185A KR20010075540A (ko) | 1999-08-03 | 2000-08-01 | 고압 연료 저장기 |
EP00962183A EP1117926A1 (de) | 1999-08-03 | 2000-08-01 | Kraftstoffhochdruckspeicher |
US09/806,763 US6488011B1 (en) | 1999-08-03 | 2000-08-01 | High-pressure fuel reservoir |
JP2001513750A JP2003506612A (ja) | 1999-08-03 | 2000-08-01 | 燃料高圧貯蔵部 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19936533.4 | 1999-08-03 | ||
DE19936533A DE19936533A1 (de) | 1999-08-03 | 1999-08-03 | Kraftstoffhochdruckspeicher |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001009507A1 true WO2001009507A1 (de) | 2001-02-08 |
Family
ID=7917043
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2000/002531 WO2001009507A1 (de) | 1999-08-03 | 2000-08-01 | Kraftstoffhochdruckspeicher |
Country Status (7)
Country | Link |
---|---|
US (1) | US6488011B1 (de) |
EP (1) | EP1117926A1 (de) |
JP (1) | JP2003506612A (de) |
KR (1) | KR20010075540A (de) |
CZ (1) | CZ20011141A3 (de) |
DE (1) | DE19936533A1 (de) |
WO (1) | WO2001009507A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2384039A (en) * | 2001-11-06 | 2003-07-16 | Denso Corp | Accumulator vessel and method of manufacturing the same |
WO2004079182A1 (de) * | 2003-03-04 | 2004-09-16 | Siemens Aktiengesellschaft | Kraftstoffhochdruckspeicher |
DE102018110342A1 (de) * | 2018-04-30 | 2019-10-31 | Benteler Automobiltechnik Gmbh | Kraftstoffverteiler |
DE102019133050A1 (de) * | 2019-12-04 | 2021-06-10 | Benteler Automobiltechnik Gmbh | Kraftstoffverteiler |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10132245A1 (de) | 2001-07-04 | 2003-01-23 | Bosch Gmbh Robert | Druckfester Hochdrucksammelraum |
DE10140058A1 (de) * | 2001-08-16 | 2002-10-24 | Bosch Gmbh Robert | Verfahren zur Herstellung eines Kraftstoffhochdruckspeichers |
DE10140057B4 (de) * | 2001-08-16 | 2007-08-30 | Robert Bosch Gmbh | Kraftstoffhochdruckspeicher |
DE10304961B3 (de) * | 2003-02-06 | 2004-08-19 | Robert Bosch Gmbh | Verfahren zur Herstellung eines Kraftstoffhochdruckspeichers |
JP4209399B2 (ja) * | 2005-02-25 | 2009-01-14 | 三菱重工業株式会社 | 蓄圧式燃料噴射装置 |
ATE441779T1 (de) * | 2005-07-08 | 2009-09-15 | Fiat Ricerche | Verbindungssystem von einem rohrfírmigen speicher für hochdruckkraftstoff |
DE102007034720A1 (de) | 2007-07-23 | 2009-01-29 | Robert Bosch Gmbh | Kraftstoffhochdruckspeicher |
DE102008035491B4 (de) | 2008-07-30 | 2022-10-27 | Mercedes-Benz Group AG | Railbaugruppe einer Kraftstoffeinspritzanlage |
DE102008035462B4 (de) | 2008-07-30 | 2022-10-27 | Mercedes-Benz Group AG | Railbaugruppe einer Kraftstoffeinspritzanlage |
US8622046B2 (en) | 2010-06-25 | 2014-01-07 | Caterpillar Inc. | Fuel system having accumulators and flow limiters |
DE102010040541A1 (de) * | 2010-09-10 | 2012-03-15 | Robert Bosch Gmbh | Kraftstoffspeicherblock zur Prüfung von Hochdruckkomponenten von Kraftstoffeinspritzeinrichtungen |
CN102536998A (zh) * | 2010-12-07 | 2012-07-04 | 鸿富锦精密工业(深圳)有限公司 | 弹簧螺丝 |
DE102014226819A1 (de) * | 2014-12-22 | 2016-06-23 | Robert Bosch Gmbh | Einrichtung einer Brennstoffeinspritzanlage und metallische dichtende Verbindungsanordnung |
JP6546771B2 (ja) * | 2015-04-15 | 2019-07-17 | 臼井国際産業株式会社 | ガソリン直噴レール |
CN210141180U (zh) * | 2018-12-11 | 2020-03-13 | 上海威克迈龙川汽车发动机零件有限公司 | 一种发动机高压油轨总成 |
GB2583345B (en) * | 2019-04-24 | 2021-06-09 | Delphi Tech Ip Ltd | Common rail assembly |
KR102258649B1 (ko) * | 2019-12-24 | 2021-06-01 | 주식회사 현대케피코 | 연료 레일 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992019859A1 (en) * | 1991-05-09 | 1992-11-12 | Lucas Industries Public Limited Company | Fuel injection nozzle |
DE29521402U1 (de) * | 1995-12-23 | 1997-04-24 | Robert Bosch Gmbh, 70469 Stuttgart | Kraftstoffeinspritzsystem |
DE19548610A1 (de) | 1995-12-23 | 1997-06-26 | Bosch Gmbh Robert | Kraftstoffeinspritzeinirchtung für Brennkraftmaschinen |
EP0866221A1 (de) * | 1997-03-18 | 1998-09-23 | Poppe & Potthoff GmbH & Co. | Kraftstoffverteiler für einen Dieselmotor |
DE19729392A1 (de) * | 1997-07-09 | 1999-01-14 | Siemens Ag | Kraftstoffspeicher mit Abdichtung |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08114160A (ja) * | 1994-08-25 | 1996-05-07 | Nippondenso Co Ltd | 内燃機関用燃料供給装置 |
DE69619949T2 (de) * | 1995-12-19 | 2002-11-14 | Nippon Soken, Inc. | Speicherkraftstoffeinspritzvorrichtung |
DE59701747D1 (de) * | 1996-08-24 | 2000-06-29 | Volkswagen Ag | Einrichtung zur Verteilung von Kraftstoff für eine Brennkraftmaschine |
DE19716513C2 (de) * | 1997-04-19 | 1999-02-11 | Mtu Friedrichshafen Gmbh | Kraftstoffeinspritzsystem für einen Verbrennungsmotor mit einer Common-Rail-Schiene |
US5845621A (en) * | 1997-06-19 | 1998-12-08 | Siemens Automotive Corporation | Bellows pressure pulsation damper |
DE19805024A1 (de) * | 1998-02-09 | 1999-08-12 | Bosch Gmbh Robert | Druckdämpfer für einen Druckbehälter |
JP2000120504A (ja) * | 1998-10-13 | 2000-04-25 | Nippon Soken Inc | 筒内直噴式内燃機関の燃料供給系 |
JP2001159380A (ja) * | 1999-12-03 | 2001-06-12 | Keihin Corp | 燃料噴射装置における燃料分配管 |
-
1999
- 1999-08-03 DE DE19936533A patent/DE19936533A1/de not_active Withdrawn
-
2000
- 2000-08-01 US US09/806,763 patent/US6488011B1/en not_active Expired - Fee Related
- 2000-08-01 CZ CZ20011141A patent/CZ20011141A3/cs unknown
- 2000-08-01 EP EP00962183A patent/EP1117926A1/de not_active Withdrawn
- 2000-08-01 JP JP2001513750A patent/JP2003506612A/ja active Pending
- 2000-08-01 WO PCT/DE2000/002531 patent/WO2001009507A1/de not_active Application Discontinuation
- 2000-08-01 KR KR1020017004185A patent/KR20010075540A/ko not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1992019859A1 (en) * | 1991-05-09 | 1992-11-12 | Lucas Industries Public Limited Company | Fuel injection nozzle |
DE29521402U1 (de) * | 1995-12-23 | 1997-04-24 | Robert Bosch Gmbh, 70469 Stuttgart | Kraftstoffeinspritzsystem |
DE19548610A1 (de) | 1995-12-23 | 1997-06-26 | Bosch Gmbh Robert | Kraftstoffeinspritzeinirchtung für Brennkraftmaschinen |
EP0866221A1 (de) * | 1997-03-18 | 1998-09-23 | Poppe & Potthoff GmbH & Co. | Kraftstoffverteiler für einen Dieselmotor |
DE19729392A1 (de) * | 1997-07-09 | 1999-01-14 | Siemens Ag | Kraftstoffspeicher mit Abdichtung |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2384039A (en) * | 2001-11-06 | 2003-07-16 | Denso Corp | Accumulator vessel and method of manufacturing the same |
US6752127B2 (en) | 2001-11-06 | 2004-06-22 | Denso Corporation | Accumulator vessel and method of manufacturing the same |
GB2384039B (en) * | 2001-11-06 | 2005-01-12 | Denso Corp | Accumulator vessel and method of manufacturing the same |
WO2004079182A1 (de) * | 2003-03-04 | 2004-09-16 | Siemens Aktiengesellschaft | Kraftstoffhochdruckspeicher |
US7040289B2 (en) | 2003-03-04 | 2006-05-09 | Siemens Aktiengesellschaft | High pressure fuel accumulator |
US7182069B2 (en) | 2003-03-04 | 2007-02-27 | Siemens Aktiengesellschaft | High pressure fuel accumulator |
DE102018110342A1 (de) * | 2018-04-30 | 2019-10-31 | Benteler Automobiltechnik Gmbh | Kraftstoffverteiler |
DE102018110342B4 (de) | 2018-04-30 | 2022-09-01 | Benteler Automobiltechnik Gmbh | Verfahren zur Herstellung eines Kraftstoffverteilers |
DE102019133050A1 (de) * | 2019-12-04 | 2021-06-10 | Benteler Automobiltechnik Gmbh | Kraftstoffverteiler |
US11352993B2 (en) | 2019-12-04 | 2022-06-07 | Benteler Automobiltechnik Gmbh | Fuel distributor |
Also Published As
Publication number | Publication date |
---|---|
CZ20011141A3 (cs) | 2002-02-13 |
EP1117926A1 (de) | 2001-07-25 |
KR20010075540A (ko) | 2001-08-09 |
US6488011B1 (en) | 2002-12-03 |
DE19936533A1 (de) | 2001-02-15 |
JP2003506612A (ja) | 2003-02-18 |
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