DE502004007514D1 - - Google Patents
Info
- Publication number
- DE502004007514D1 DE502004007514D1 DE502004007514T DE502004007514T DE502004007514D1 DE 502004007514 D1 DE502004007514 D1 DE 502004007514D1 DE 502004007514 T DE502004007514 T DE 502004007514T DE 502004007514 T DE502004007514 T DE 502004007514T DE 502004007514 D1 DE502004007514 D1 DE 502004007514D1
- Authority
- DE
- Germany
- Prior art keywords
- rocker
- pump
- plungers
- admission valves
- case
- 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.)
- Active
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
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
- F02M59/366—Valves being actuated electrically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/0038—Piston machines or pumps characterised by having positively-driven valving the distribution member forming a single inlet for a plurality of pumping chambers or a multiple discharge for one single pumping chamber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/0076—Piston machines or pumps characterised by having positively-driven valving the members being actuated by electro-magnetic 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
Abstract
The invention relates to a high pressure feed pump (10) comprising a number of pump cylinders (12.1, 12.2) that are fixed to a housing and provided with a cylinder body (16) and admission valves (40.1, 40.2) and discharge valves arranged in the cylinder head (14). The admission valves (40.1, 40.2) of respectively two pump cylinders (12.1, 12.2), in the case of a radial piston pump, or three pump cylinders, in the case of an axial piston pump, that are respectively provided with two plungers (18.1, 18.2) moving out-of-phase in relation to each other about 180 DEG , or about 120 DEG for respectively three plungers, are mechanically interconnected by means of a pivotable rocker (42.1). The position of the rocker (42.1) is controlled by a single actuator (44.1). During the delivery stroke of a plunger (18.1, 18.2), the admission valves (40.1, 40.2) associated with the rocker (42.1) and located in an open position are closed by means of a pulse-type excitation of the actuator (44.1) and a resulting displacement of the rocker (42.1).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH20352003 | 2003-11-28 | ||
PCT/CH2004/000665 WO2005052357A1 (en) | 2003-11-28 | 2004-11-04 | High pressure feed pump for internal combustion engines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE502004007514D1 true DE502004007514D1 (en) | 2008-08-14 |
Family
ID=34624413
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE502004007514T Active DE502004007514D1 (en) | 2003-11-28 | 2004-11-04 |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1687524B1 (en) |
AT (1) | ATE399936T1 (en) |
DE (1) | DE502004007514D1 (en) |
WO (1) | WO2005052357A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007030831A1 (en) * | 2007-07-03 | 2009-01-08 | Robert Bosch Gmbh | Valve controlled hydraulic machine |
DE102008040083A1 (en) * | 2008-07-02 | 2010-01-07 | Robert Bosch Gmbh | high pressure pump |
DE102011082733A1 (en) * | 2011-09-15 | 2013-03-21 | Robert Bosch Gmbh | Pump, in particular high-pressure fuel pump |
CH716632A1 (en) * | 2019-09-25 | 2021-03-31 | Liebherr Machines Bulle Sa | In-line piston pump. |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH635167A5 (en) * | 1979-01-25 | 1983-03-15 | Sulzer Ag | INJECTION DEVICE OF A DIESEL ENGINE CYLINDER. |
DE3112381A1 (en) * | 1981-03-28 | 1982-11-11 | Robert Bosch Gmbh, 7000 Stuttgart | ELECTRICALLY CONTROLLED FUEL INJECTION DEVICE FOR MULTI-CYLINDER INTERNAL COMBUSTION ENGINES, ESPECIALLY FOR DIRECT FUEL INJECTION IN FORD-IGNITIONED ENGINES |
EP0678166B1 (en) * | 1993-11-08 | 1998-08-12 | SIG Schweizerische Industrie-Gesellschaft | Control device for a variable intake volume pump |
DE50013384D1 (en) * | 1999-11-19 | 2006-10-12 | Crt Common Rail Tech Ag | High-pressure injection system with common rail |
WO2003023232A2 (en) * | 2001-09-10 | 2003-03-20 | Stanadyne Corporation | Hybrid demand control for hydraulic pump |
EP1321663A3 (en) * | 2001-12-19 | 2003-07-02 | Robert Bosch Gmbh | Fuel injection device for an internal combustion engine |
-
2004
- 2004-11-04 AT AT04797222T patent/ATE399936T1/en active
- 2004-11-04 WO PCT/CH2004/000665 patent/WO2005052357A1/en active IP Right Grant
- 2004-11-04 DE DE502004007514T patent/DE502004007514D1/de active Active
- 2004-11-04 EP EP04797222A patent/EP1687524B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
EP1687524B1 (en) | 2008-07-02 |
EP1687524A1 (en) | 2006-08-09 |
WO2005052357A1 (en) | 2005-06-09 |
ATE399936T1 (en) | 2008-07-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |