DE50008529D1 - INJEKTOR - Google Patents
INJEKTORInfo
- Publication number
- DE50008529D1 DE50008529D1 DE50008529T DE50008529T DE50008529D1 DE 50008529 D1 DE50008529 D1 DE 50008529D1 DE 50008529 T DE50008529 T DE 50008529T DE 50008529 T DE50008529 T DE 50008529T DE 50008529 D1 DE50008529 D1 DE 50008529D1
- Authority
- DE
- Germany
- Prior art keywords
- valve body
- control
- injector
- section
- forms
- 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 - Lifetime
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
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
- F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
-
- 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
-
- 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
- F02M63/0012—Valves
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
- F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
-
- 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
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
- F02M63/0042—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing combined with valve seats of the lift valve type
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fuel-Injection Apparatus (AREA)
- Glass Compositions (AREA)
- Disintegrating Or Milling (AREA)
- Jellies, Jams, And Syrups (AREA)
Abstract
The invention relates to a injector (18), especially for controlling the injection of fuel into a combustion chamber of an internal combustion engine. The injector has a closing member (30) which is subjected to the hydraulic action of an actuating device (44, 52, 54). Said actuating device has a valve body (54) which is movably guided in a control channel (44) and which is actuated by a piezoelectric actuator (52). The valve body interacts with two control cross-sections (68, 70) located one behind the other, in order to control the pressure means connections between a high pressure supply channel (24) and a discharge channel (46). The first control cross-section (68) in the direction of actuation of the valve body (54) therefor forms a seat valve (51) with said valve body (54) and the second control cross-section (70) in the direction of actuation forms a sliding valve (71). A throttle gap (72) also forms between the valve body (54) and the wall of the second control cross-section (70) when said valve body is extended out to the maximum. This throttle gap determines the pressure ratios in the injector (18) and therefor the injection quantity per time unit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50008529T DE50008529D1 (en) | 1999-08-20 | 2000-08-10 | INJEKTOR |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19939445A DE19939445A1 (en) | 1999-08-20 | 1999-08-20 | Injector |
DE50008529T DE50008529D1 (en) | 1999-08-20 | 2000-08-10 | INJEKTOR |
PCT/DE2000/002675 WO2001014715A1 (en) | 1999-08-20 | 2000-08-10 | Injector |
Publications (1)
Publication Number | Publication Date |
---|---|
DE50008529D1 true DE50008529D1 (en) | 2004-12-09 |
Family
ID=7918971
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19939445A Withdrawn DE19939445A1 (en) | 1999-08-20 | 1999-08-20 | Injector |
DE50008529T Expired - Lifetime DE50008529D1 (en) | 1999-08-20 | 2000-08-10 | INJEKTOR |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19939445A Withdrawn DE19939445A1 (en) | 1999-08-20 | 1999-08-20 | Injector |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1210512B1 (en) |
JP (1) | JP2003507641A (en) |
KR (1) | KR20020025982A (en) |
AT (1) | ATE281598T1 (en) |
CZ (1) | CZ2002608A3 (en) |
DE (2) | DE19939445A1 (en) |
WO (1) | WO2001014715A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10120157A1 (en) * | 2001-04-25 | 2002-11-07 | Bosch Gmbh Robert | Fuel injector with throttle element integrated in the control valve |
DE10160264A1 (en) * | 2001-12-07 | 2003-06-18 | Bosch Gmbh Robert | Fuel injection device for internal combustion engine has smaller cross-section of connection to relief chamber exposed with increased injection valve element opening displacement |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08158981A (en) * | 1994-12-02 | 1996-06-18 | Nippondenso Co Ltd | Fuel injection device |
US5680988A (en) * | 1995-01-20 | 1997-10-28 | Caterpillar Inc. | Axial force indentation or protrusion for a reciprocating piston/barrel assembly |
DE19624001A1 (en) * | 1996-06-15 | 1997-12-18 | Bosch Gmbh Robert | Fuel injection device for internal combustion engines |
AUPO501897A0 (en) * | 1997-02-10 | 1997-03-06 | Invent Engineering P/L | Hydraulically actuated electronic fuel injection system |
DE19742073A1 (en) * | 1997-09-24 | 1999-03-25 | Bosch Gmbh Robert | Fuel injection arrangement for internal combustion engines |
-
1999
- 1999-08-20 DE DE19939445A patent/DE19939445A1/en not_active Withdrawn
-
2000
- 2000-08-10 KR KR1020027002129A patent/KR20020025982A/en not_active Application Discontinuation
- 2000-08-10 EP EP00958238A patent/EP1210512B1/en not_active Expired - Lifetime
- 2000-08-10 DE DE50008529T patent/DE50008529D1/en not_active Expired - Lifetime
- 2000-08-10 AT AT00958238T patent/ATE281598T1/en not_active IP Right Cessation
- 2000-08-10 CZ CZ2002608A patent/CZ2002608A3/en unknown
- 2000-08-10 JP JP2001518564A patent/JP2003507641A/en active Pending
- 2000-08-10 WO PCT/DE2000/002675 patent/WO2001014715A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
WO2001014715A1 (en) | 2001-03-01 |
KR20020025982A (en) | 2002-04-04 |
CZ2002608A3 (en) | 2003-06-18 |
JP2003507641A (en) | 2003-02-25 |
EP1210512A1 (en) | 2002-06-05 |
DE19939445A1 (en) | 2001-03-01 |
ATE281598T1 (en) | 2004-11-15 |
EP1210512B1 (en) | 2004-11-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |