WO2006008205A1 - Common-rail-system mit unterschiedlichen zulaufsleitungen zu den injektoren - Google Patents
Common-rail-system mit unterschiedlichen zulaufsleitungen zu den injektoren Download PDFInfo
- Publication number
- WO2006008205A1 WO2006008205A1 PCT/EP2005/052322 EP2005052322W WO2006008205A1 WO 2006008205 A1 WO2006008205 A1 WO 2006008205A1 EP 2005052322 W EP2005052322 W EP 2005052322W WO 2006008205 A1 WO2006008205 A1 WO 2006008205A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rail
- supply lines
- rail system
- injectors
- common rail
- 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
- F02M55/025—Common rails
-
- 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
- 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/31—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements
Definitions
- the invention relates to a common rail system consisting essentially of
- the common rail system essentially consists of a high-pressure rail
- Fuel is applied.
- Supply lines which end with their ends pointing away from the rail in the so-called injectors, terminate from the rail and are in turn provided for injecting the fuel provided from the rail under high pressure into a combustion chamber.
- the object of the invention is to prevent overcoupling of a resonant oscillation in a supply line of a common rail system to the adjacent supply line or at least to reduce it.
- the solution of the problem is to avoid that the individual supply lines, which are each arranged between the rail and the injector, have the same resonant frequency.
- a proposed solution may be that the Resonanzfre ⁇ frequency of the respective supply lines is changed, for example, the length of the feed lines between the rail and the In ⁇ jector are different. Alternatively, it can also be provided that the diameter or the wall thicknesses of the supply lines are different from one another.
- the invention has the effect that, due to the occurring pressure oscillations in the Comtnon rail system, in particular the wear on the nozzle seat of an injector is reduced, since at least the vibrations which are generated by the adjacent supply lines are not transmitted to the actual supply line become.
- the total line length of the feed line is essentially responsible for the actual resonant frequency.
- the resonance fundamental frequencies of the individual feed lines in each case by more than 50 Hz to distinguish the.
- ratios of the total line lengths of (2 ⁇ n + 1) / (2 ⁇ m + 1) should also be avoided, where n and m are in each case natural numbers between 1 and 4.
- FIG. 1 shows a schematically illustrated common rail system with mutually different lengths of supply lines.
- a common rail system 1 is shown. It consists of a rail 2 and injectors 3, wherein between the rail 2 and the injectors 3 each have a supply line 4 is arranged.
- the supply line has in each case a length L, wherein the length L of the rail 2 to the injector 3 is measured.
- a rail 2 is provided with six injectors 3i to 3 6 , wherein between the rail 2 each supply lines 4i to 4 6 are provided.
- the lengths of the respective supply lines 1 are denoted by Ii to I 6 .
- the length selection of the respective feed line is to be determined as follows: (Ix + Ii) / (Iy + Ii) ⁇ (2n + 1) / (2m + 1 ), where N and M are each natural numbers.
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 (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007521927A JP2008506889A (ja) | 2004-07-21 | 2005-05-20 | インジェクタに通じる種々異なる流入管路を有するコモンレールシステム |
US11/632,970 US20070295308A1 (en) | 2004-07-21 | 2005-05-20 | Common Rail System With Differently Embodied Supply Lines To The Injectors |
EP05749978A EP1771652A1 (de) | 2004-07-21 | 2005-05-20 | Common-rail-system mit unterschiedlichen zulaufsleitungen zu den injektoren |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004035297A DE102004035297A1 (de) | 2004-07-21 | 2004-07-21 | Common-Rail-System mit unterschiedlichen Zulaufsleitungen zu den Injektoren |
DE102004035297.6 | 2004-07-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006008205A1 true WO2006008205A1 (de) | 2006-01-26 |
Family
ID=34969609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/052322 WO2006008205A1 (de) | 2004-07-21 | 2005-05-20 | Common-rail-system mit unterschiedlichen zulaufsleitungen zu den injektoren |
Country Status (7)
Country | Link |
---|---|
US (1) | US20070295308A1 (de) |
EP (1) | EP1771652A1 (de) |
JP (1) | JP2008506889A (de) |
CN (1) | CN1989338A (de) |
DE (1) | DE102004035297A1 (de) |
TW (1) | TW200604433A (de) |
WO (1) | WO2006008205A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102174918B (zh) * | 2011-03-13 | 2012-10-17 | 北京建筑工程学院 | 一种组件式高压共轨装置 |
CN105370423B (zh) * | 2014-08-19 | 2019-11-15 | 马涅蒂-马瑞利公司 | 用于控制间接喷射内燃发动机汽缸燃烧循环中喷射的方法 |
CN109488503A (zh) * | 2019-01-16 | 2019-03-19 | 广西玉柴机器股份有限公司 | 不等长的高压油管装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0780569A1 (de) * | 1995-12-19 | 1997-06-25 | Nippon Soken, Inc. | Speicherkraftstoffeinspritzvorrichtung |
WO1998042978A1 (de) * | 1997-03-22 | 1998-10-01 | Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh | Kraftstoffeinspritzsystem für eine brennkraftmaschine |
EP0892170A1 (de) * | 1997-01-16 | 1999-01-20 | Isuzu Motors Limited | Brennstoffeinspritzvorrichtung für dieselmotoren |
DE10114219A1 (de) * | 2001-03-23 | 2002-09-26 | Bosch Gmbh Robert | Kraftstoffinjektor mit vorgeordnetem Speichervolumen |
DE10143423A1 (de) * | 2001-09-05 | 2003-05-08 | Bosch Gmbh Robert | Kraftstoffeinspritzsystem mit hydraulisch von der Zuleitung entkoppeltem Injektor |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3507263A (en) * | 1969-06-13 | 1970-04-21 | Emile David Long | Fluid compression and expansion wave converter for precision fuel metering system |
US5297523A (en) * | 1993-02-26 | 1994-03-29 | Caterpillar Inc. | Tuned actuating fluid inlet manifold for a hydraulically-actuated fuel injection system |
JP3293269B2 (ja) * | 1993-10-06 | 2002-06-17 | 株式会社デンソー | 圧力供給装置 |
JP3292017B2 (ja) * | 1996-01-16 | 2002-06-17 | トヨタ自動車株式会社 | V型エンジンの燃料供給装置 |
DE19643295C1 (de) * | 1996-10-21 | 1998-03-26 | Bosch Gmbh Robert | Brennstoffversorgungssystem |
US6134946A (en) * | 1998-04-29 | 2000-10-24 | Case Western Reserve University | Nano-crystalline porous tin oxide film for carbon monoxide sensing |
JP3763698B2 (ja) * | 1998-10-22 | 2006-04-05 | 株式会社日本自動車部品総合研究所 | 圧力脈動を緩和し得る燃料供給システムの設計方法 |
US6905002B2 (en) * | 2002-06-21 | 2005-06-14 | International Engine Intellectual Property Company, Llc | Acoustic wave attenuator for a rail |
US6848477B2 (en) * | 2003-01-14 | 2005-02-01 | Visteon Global Technologies, Inc. | Fuel pressure damping system and method |
-
2004
- 2004-07-21 DE DE102004035297A patent/DE102004035297A1/de not_active Withdrawn
-
2005
- 2005-05-20 US US11/632,970 patent/US20070295308A1/en not_active Abandoned
- 2005-05-20 JP JP2007521927A patent/JP2008506889A/ja not_active Withdrawn
- 2005-05-20 WO PCT/EP2005/052322 patent/WO2006008205A1/de active Application Filing
- 2005-05-20 CN CNA2005800245116A patent/CN1989338A/zh active Pending
- 2005-05-20 EP EP05749978A patent/EP1771652A1/de not_active Withdrawn
- 2005-06-07 TW TW094118725A patent/TW200604433A/zh unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0780569A1 (de) * | 1995-12-19 | 1997-06-25 | Nippon Soken, Inc. | Speicherkraftstoffeinspritzvorrichtung |
EP0892170A1 (de) * | 1997-01-16 | 1999-01-20 | Isuzu Motors Limited | Brennstoffeinspritzvorrichtung für dieselmotoren |
WO1998042978A1 (de) * | 1997-03-22 | 1998-10-01 | Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh | Kraftstoffeinspritzsystem für eine brennkraftmaschine |
DE10114219A1 (de) * | 2001-03-23 | 2002-09-26 | Bosch Gmbh Robert | Kraftstoffinjektor mit vorgeordnetem Speichervolumen |
DE10143423A1 (de) * | 2001-09-05 | 2003-05-08 | Bosch Gmbh Robert | Kraftstoffeinspritzsystem mit hydraulisch von der Zuleitung entkoppeltem Injektor |
Also Published As
Publication number | Publication date |
---|---|
JP2008506889A (ja) | 2008-03-06 |
DE102004035297A1 (de) | 2006-02-16 |
TW200604433A (en) | 2006-02-01 |
EP1771652A1 (de) | 2007-04-11 |
CN1989338A (zh) | 2007-06-27 |
US20070295308A1 (en) | 2007-12-27 |
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