DE68903725D1 - Pumpe. - Google Patents
Pumpe.Info
- Publication number
- DE68903725D1 DE68903725D1 DE8989309939T DE68903725T DE68903725D1 DE 68903725 D1 DE68903725 D1 DE 68903725D1 DE 8989309939 T DE8989309939 T DE 8989309939T DE 68903725 T DE68903725 T DE 68903725T DE 68903725 D1 DE68903725 D1 DE 68903725D1
- Authority
- DE
- Germany
- Prior art keywords
- cylinder
- piston
- closed end
- port
- helical groove
- 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.)
- Expired - Fee Related
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
- F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
- F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
- F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load
- F02M45/06—Pumps peculiar thereto
- F02M45/066—Having specially arranged spill port and spill contour on the piston
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
- Eye Examination Apparatus (AREA)
- Fuel-Injection Apparatus (AREA)
- Reciprocating Pumps (AREA)
- Fluid-Driven Valves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB888823453A GB8823453D0 (en) | 1988-10-06 | 1988-10-06 | Pump |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68903725D1 true DE68903725D1 (de) | 1993-01-14 |
DE68903725T2 DE68903725T2 (de) | 1993-06-09 |
Family
ID=10644792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8989309939T Expired - Fee Related DE68903725T2 (de) | 1988-10-06 | 1989-09-29 | Pumpe. |
Country Status (7)
Country | Link |
---|---|
US (1) | US5020979A (de) |
EP (1) | EP0363088B1 (de) |
JP (1) | JPH02256888A (de) |
CN (1) | CN1019225B (de) |
AT (1) | ATE83046T1 (de) |
DE (1) | DE68903725T2 (de) |
GB (1) | GB8823453D0 (de) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5492098A (en) * | 1993-03-01 | 1996-02-20 | Caterpillar Inc. | Flexible injection rate shaping device for a hydraulically-actuated fuel injection system |
US5954029A (en) * | 1995-01-25 | 1999-09-21 | Cummins Engine Company, Inc. | Unit fuel injector having constant start of injection |
DE19630337C2 (de) * | 1996-07-26 | 1999-02-18 | Hatz Motoren | Kraftstoffeinspritzpumpe zur Einspritzung bei Brennkraftmaschinen, insbesondere Einzylinder-Dieselmotoren |
US5870996A (en) * | 1998-04-10 | 1999-02-16 | Alfred J. Buescher | High-pressure dual-feed-rate injector pump with auxiliary spill port |
US6363314B1 (en) | 2000-07-13 | 2002-03-26 | Caterpillar Inc. | Method and apparatus for trimming a fuel injector |
US6390082B1 (en) | 2000-07-13 | 2002-05-21 | Caterpillar Inc. | Method and apparatus for controlling the current level of a fuel injector signal during sudden acceleration |
US6363315B1 (en) | 2000-07-13 | 2002-03-26 | Caterpillar Inc. | Apparatus and method for protecting engine electronic circuitry from thermal damage |
US6467452B1 (en) | 2000-07-13 | 2002-10-22 | Caterpillar Inc | Method and apparatus for delivering multiple fuel injections to the cylinder of an internal combustion engine |
US6450149B1 (en) | 2000-07-13 | 2002-09-17 | Caterpillar Inc. | Method and apparatus for controlling overlap of two fuel shots in multi-shot fuel injection events |
US6371077B1 (en) | 2000-07-13 | 2002-04-16 | Caterpillar Inc. | Waveform transitioning method and apparatus for multi-shot fuel systems |
US6453874B1 (en) | 2000-07-13 | 2002-09-24 | Caterpillar Inc. | Apparatus and method for controlling fuel injection signals during engine acceleration and deceleration |
US6386176B1 (en) | 2000-07-13 | 2002-05-14 | Caterpillar Inc. | Method and apparatus for determining a start angle for a fuel injection associated with a fuel injection signal |
US6415762B1 (en) | 2000-07-13 | 2002-07-09 | Caterpillar Inc. | Accurate deliver of total fuel when two injection events are closely coupled |
US6705277B1 (en) | 2000-07-13 | 2004-03-16 | Caterpillar Inc | Method and apparatus for delivering multiple fuel injections to the cylinder of an engine wherein the pilot fuel injection occurs during the intake stroke |
US6480781B1 (en) | 2000-07-13 | 2002-11-12 | Caterpillar Inc. | Method and apparatus for trimming an internal combustion engine |
US6606974B1 (en) | 2000-07-13 | 2003-08-19 | Caterpillar Inc | Partitioning of a governor fuel output into three separate fuel quantities in a stable manner |
US6516773B2 (en) | 2001-05-03 | 2003-02-11 | Caterpillar Inc | Method and apparatus for adjusting the injection current duration of each fuel shot in a multiple fuel injection event to compensate for inherent injector delay |
US6516783B2 (en) | 2001-05-15 | 2003-02-11 | Caterpillar Inc | Camshaft apparatus and method for compensating for inherent injector delay in a multiple fuel injection event |
KR101139128B1 (ko) * | 2010-06-09 | 2012-04-30 | 현대중공업 주식회사 | 분리형 플런저를 가지는 연료분사펌프 |
CN102953971B (zh) * | 2012-11-22 | 2016-04-06 | 江苏高博智融科技有限公司 | 延寿油泵 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB514011A (en) * | 1938-04-26 | 1939-10-27 | Gardner & Sons Ltd | Improvements relating to fuel injection pumps for compression ignition oil engines |
GB550050A (en) * | 1941-06-17 | 1942-12-21 | Cav Ltd | Improvements relating to fuel-injection pumps for internal combustion engines |
FR1037219A (fr) * | 1950-05-24 | 1953-09-15 | Cav Ltd | Pompe à injection de combustible pour moteurs à combustion interne |
GB893621A (en) * | 1959-06-30 | 1962-04-11 | Ceskoslovenske Zd Y Naftovych | Improvements in and relating to fuel injection pumps |
JPS4933293B1 (de) * | 1970-06-23 | 1974-09-06 | ||
US3792692A (en) * | 1972-03-22 | 1974-02-19 | Teledyne Ind | Fuel injection device |
DE2501764A1 (de) * | 1975-01-17 | 1976-07-22 | Guenther Kuske | Brennstoffeinspritzelement mit zwischenabsteuerung |
FR2482669A2 (fr) * | 1979-05-28 | 1981-11-20 | Semt | Perfectionnement a une pompe d'injection pour un moteur a combustion interne |
DE2922426A1 (de) * | 1979-06-01 | 1980-12-11 | Daimler Benz Ag | Kraftstoffeinspritzpumpe mit unterteilter foerderung |
GB8725029D0 (en) * | 1986-11-27 | 1987-12-02 | Daimler Benz Ag | Inclined-edge controlled fuel injection pump |
-
1988
- 1988-10-06 GB GB888823453A patent/GB8823453D0/en active Pending
-
1989
- 1989-09-29 EP EP89309939A patent/EP0363088B1/de not_active Expired - Lifetime
- 1989-09-29 DE DE8989309939T patent/DE68903725T2/de not_active Expired - Fee Related
- 1989-09-29 AT AT89309939T patent/ATE83046T1/de not_active IP Right Cessation
- 1989-10-05 US US07/417,273 patent/US5020979A/en not_active Expired - Fee Related
- 1989-10-05 JP JP1261232A patent/JPH02256888A/ja active Pending
- 1989-10-05 CN CN89108174A patent/CN1019225B/zh not_active Expired
Also Published As
Publication number | Publication date |
---|---|
EP0363088B1 (de) | 1992-12-02 |
CN1019225B (zh) | 1992-11-25 |
CN1042218A (zh) | 1990-05-16 |
EP0363088A1 (de) | 1990-04-11 |
ATE83046T1 (de) | 1992-12-15 |
JPH02256888A (ja) | 1990-10-17 |
GB8823453D0 (en) | 1988-11-16 |
US5020979A (en) | 1991-06-04 |
DE68903725T2 (de) | 1993-06-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |