WO1997040272A1 - Kraftstoffeinspritzvorrichtung - Google Patents
Kraftstoffeinspritzvorrichtung Download PDFInfo
- Publication number
- WO1997040272A1 WO1997040272A1 PCT/DE1996/002380 DE9602380W WO9740272A1 WO 1997040272 A1 WO1997040272 A1 WO 1997040272A1 DE 9602380 W DE9602380 W DE 9602380W WO 9740272 A1 WO9740272 A1 WO 9740272A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fuel injection
- injection device
- electromagnet
- valve member
- valve
- Prior art date
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 29
- 238000002347 injection Methods 0.000 title claims abstract description 28
- 239000007924 injection Substances 0.000 title claims abstract description 28
- 238000013016 damping Methods 0.000 claims description 16
- 239000012530 fluid Substances 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- F02M41/00—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
- F02M41/08—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined
- F02M41/14—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined rotary distributor supporting pump pistons
- F02M41/1405—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined rotary distributor supporting pump pistons pistons being disposed radially with respect to rotation axis
- F02M41/1411—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined rotary distributor supporting pump pistons pistons being disposed radially with respect to rotation axis characterised by means for varying fuel delivery or injection timing
-
- 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
- F02M41/00—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
- F02M41/02—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor being spaced from pumping elements
- F02M41/06—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor being spaced from pumping elements the distributor rotating
-
- 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
- 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
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—Valves
- F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
- F02M2200/304—Fuel-injection apparatus having mechanical parts, the movement of which is damped using hydraulic means
Definitions
- the invention is based on a fuel injection device according to the preamble of claim 1.
- EP-B1-0 195 261 EP-B1-0 195 261
- an electromagnetic valve which has a flat armature which brings the valve member into the closed position against the force of an opening spring when the electromagnet is excited. This follows undamped.
- the spring of the solenoid valve moves the armature in the direction of opening the solenoid valve.
- the armature only includes the damping chamber when its end position is reached, the surrounding walls of which also represent the opening limit stop of the valve member of the solenoid valve. The damping took place mainly by the approach of the flat anchor to the damping chambers and the damping limited to the last section of the valve opening stroke.
- the known valve is provided in a valve housing which is installed in a fixed position in a fuel injection pump.
- the fuel injection device according to the invention with the characterizing features of claim 1 has the advantage that a damping constantly comes into effect over the entire stroke of the valve member of the electromagnetic valve and a small-sized plunger armature is used with a low moving mass. This results in a small size and a quick response of the solenoid valve.
- this configuration gives the very advantageous possibility of assigning a solenoid valve to a rotating part. It is also advantageous to use the fluid already present in the fuel injection device in the form of fuel as a damping fluid.
- the section of the drawing shows part of a distributor injection pump as a fuel injection device, in which the features essential to the invention are realized. It is in a housing 1
- the pressure chamber is delimited on one side by a valve seat 14, which merges into a partial bore 15 of the channel 12 that provides relief.
- a magnetic disk 18 is screwed onto this and has a keyhole-like recess 20.
- a neck 22 of a valve member 23 of a solenoid valve 24 projects into a narrow part lying coaxially to the axis of the distributor. This is inserted with its housing 25 into a recess in the housing 1 of the fuel injection pump and fixed there in a stationary manner.
- the solenoid valve has in his
- Housing 25 has an electromagnet 29 with a magnetic coil 26 which is arranged within a magnetic core which has the shape of a ring pot with a central, sleeve-shaped magnetic core 27 and a magnetic outer jacket 28, between which and the central magnetic core
- Magnetic coil is stored.
- the magnetic core is supplemented by the magnetic disk 18, the diameter of which is adapted to the inner diameter of the outer magnet shell and only forms a narrow air gap with it. This enables that with fixed
- Electromagnet 29, the magnetic disc 18, which is part of the magnetic circuit, can rotate together with the rotating distributor 7.
- the central magnetic core 27 has a continuous one
- Recess 30, which is designed as a stepped through hole, of which a larger diameter part 31, circular cylindrical and serves to guide a plunger 33. This is then attached to a head-like end 34 on the neck 22 of the valve member 23 and actuates the valve member toward its seat 14 in the closing direction when the solenoid coil is excited.
- a compression spring 35 acts on the valve member in the opening direction and is supported in the partial bore 15. The armature can also form the head-like end 34 of the valve member 23 in one piece.
- the stroke of the valve member is created by the installation of a
- an insert 38 is pressed, which is essentially pot-shaped with the bottom facing the plunger 33, in which a throttle is introduced as a bore 39 in the middle.
- This connects a damping chamber 40, which is enclosed between the insert and the plunger 33 in part 31 of the stepped through bore which is larger in diameter, to a relief chamber 41, which connects beyond the insert and is connected to fuel-carrying spaces of the fuel injection pump.
- the insert can be pressed into the part 37 of the stepped through bore 30, which is smaller in diameter, and the volume of the damping chamber 40 can thus be adjusted.
- the insert can be made with a necessary one according to the application Throttle cross-section are provided and also replaced if necessary.
- valve member 23 In operation of the fuel injection device, the valve member 23 is acted upon by the compression spring 35 in the opening direction, so that the valve member is lifted from its valve seat 14 and the pressure chamber 9 can be relieved to the relief side. In this position of the solenoid valve, no high pressure can build up in the pump work space, not shown, and accordingly no
- High pressure is directed to a fuel injection valve via one of a plurality of delivery lines 43, which are alternately connected to the pressure chamber 9 or to the pressure channel 8 when the distributor rotates.
- a magnetic flux is created which moves the plunger 33 toward the magnetic disk 18 until the valve member comes to rest on its valve seat 14.
- the stroke in the opening direction is limited by the abutment of the shoulder 36 on the magnetic disk.
- the passage of the head 34 through the magnetic disk 18 enables the keyhole-like configuration of the recess 20.
- the head of the valve member is passed through an eccentrically located larger diameter and the neck 22 is then positioned in the coaxial position to the distributor axis.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9609174A BR9609174A (pt) | 1996-04-23 | 1996-12-11 | Dispositivo de injeção de combustível |
DE59609021T DE59609021D1 (de) | 1996-04-23 | 1996-12-11 | Kraftstoffeinspritzvorrichtung |
US08/981,383 US5829413A (en) | 1996-04-23 | 1996-12-11 | Fuel injection device |
EP96946143A EP0834012B1 (de) | 1996-04-23 | 1996-12-11 | Kraftstoffeinspritzvorrichtung |
JP53754997A JP3737127B2 (ja) | 1996-04-23 | 1996-12-11 | 燃料噴射装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19616084.7 | 1996-04-23 | ||
DE19616084A DE19616084A1 (de) | 1996-04-23 | 1996-04-23 | Kraftstoffeinspritzvorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997040272A1 true WO1997040272A1 (de) | 1997-10-30 |
Family
ID=7792144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1996/002380 WO1997040272A1 (de) | 1996-04-23 | 1996-12-11 | Kraftstoffeinspritzvorrichtung |
Country Status (10)
Country | Link |
---|---|
US (1) | US5829413A (de) |
EP (1) | EP0834012B1 (de) |
JP (1) | JP3737127B2 (de) |
KR (1) | KR19990028328A (de) |
CN (1) | CN1083532C (de) |
BR (1) | BR9609174A (de) |
DE (2) | DE19616084A1 (de) |
ES (1) | ES2175186T3 (de) |
RU (1) | RU2175076C2 (de) |
WO (1) | WO1997040272A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001050008A3 (de) * | 1999-12-31 | 2002-02-14 | Bosch Gmbh Robert | Kraftstoffeinstpritzvorrichtung mit sowohl laminar als auch turbulent gedämpftem magnetventil |
WO2002042634A1 (de) * | 2000-11-23 | 2002-05-30 | Robert Bosch Gmbh | Magnetventilgesteuerte kraftstoffeinspritzpumpe für brennkraftmaschinen, insbesondere dieselmotoren |
WO2002044548A1 (de) * | 2000-11-30 | 2002-06-06 | Robert Bosch Gmbh | Hubgesteuertes ventil als kraftstoff-zumesseinrichtung eines einspritzsystems für brennkraftmaschinen |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6394073B1 (en) * | 1999-08-26 | 2002-05-28 | Caterpillar Inc. | Hydraulic valve with hydraulically assisted opening and fuel injector using same |
US6415769B1 (en) | 2000-04-24 | 2002-07-09 | Blue Chip Diesel Performance | Performance enhancing system for electronically controlled engines |
DE10038560B4 (de) * | 2000-08-03 | 2006-06-29 | Robert Bosch Gmbh | Kraftstoffversorgungssystem für eine Brennkraftmaschine insbesondere eines Kraftfahrzeugs |
DE10119982A1 (de) * | 2001-04-24 | 2002-10-31 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine |
DE10229398A1 (de) * | 2002-06-29 | 2003-11-20 | Bosch Gmbh Robert | Pumpenelement für eine Hochdruckpumpe mit stufenlos einstellbarer Fördermenge |
DE102005043352B9 (de) * | 2004-09-13 | 2011-03-17 | Guk Hyun Park | Kraftstoffeinspritzsystem |
CN102643871B (zh) * | 2012-04-17 | 2014-02-26 | 昆明怡普康植物化学有限公司 | 一种高纯没食子酸的制备方法 |
DE102015207239A1 (de) * | 2015-04-21 | 2016-10-27 | Robert Bosch Gmbh | Gasventil |
DE102018200083A1 (de) * | 2018-01-04 | 2019-07-04 | Continental Automotive Gmbh | Kraftstoffhochdruckpumpe |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0195261A2 (de) * | 1985-03-21 | 1986-09-24 | Robert Bosch Gmbh | Magnetventil, insbesondere Kraftstoffmengensteuerventil |
EP0278099A1 (de) * | 1987-01-23 | 1988-08-17 | Pierburg Gmbh | Elektronmagnetisch getaktetes Einspritzventil für gemischverdichtende Brennkraftmaschinen |
US5190223A (en) * | 1988-10-10 | 1993-03-02 | Siemens Automotive L.P. | Electromagnetic fuel injector with cartridge embodiment |
DE4339948A1 (de) * | 1993-11-24 | 1995-06-01 | Bosch Gmbh Robert | Kraftstoffeinspritzpumpe |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4119467C2 (de) * | 1991-06-13 | 1996-10-17 | Daimler Benz Ag | Nach dem Verdrängerprinzip arbeitende Vorrichtung zur Kraft- und Hubübersetzung bzw. -übertragung |
CA2098192C (en) * | 1991-10-11 | 2004-11-16 | Thomas G. Ausman | Damped actuator and valve assembly for an electronically-controlled injection |
-
1996
- 1996-04-23 DE DE19616084A patent/DE19616084A1/de not_active Withdrawn
- 1996-12-11 JP JP53754997A patent/JP3737127B2/ja not_active Expired - Fee Related
- 1996-12-11 DE DE59609021T patent/DE59609021D1/de not_active Expired - Fee Related
- 1996-12-11 RU RU98101558/06A patent/RU2175076C2/ru not_active IP Right Cessation
- 1996-12-11 ES ES96946143T patent/ES2175186T3/es not_active Expired - Lifetime
- 1996-12-11 CN CN96194152A patent/CN1083532C/zh not_active Expired - Fee Related
- 1996-12-11 US US08/981,383 patent/US5829413A/en not_active Expired - Fee Related
- 1996-12-11 BR BR9609174A patent/BR9609174A/pt not_active IP Right Cessation
- 1996-12-11 WO PCT/DE1996/002380 patent/WO1997040272A1/de active IP Right Grant
- 1996-12-11 KR KR1019970709643A patent/KR19990028328A/ko active IP Right Grant
- 1996-12-11 EP EP96946143A patent/EP0834012B1/de not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0195261A2 (de) * | 1985-03-21 | 1986-09-24 | Robert Bosch Gmbh | Magnetventil, insbesondere Kraftstoffmengensteuerventil |
EP0278099A1 (de) * | 1987-01-23 | 1988-08-17 | Pierburg Gmbh | Elektronmagnetisch getaktetes Einspritzventil für gemischverdichtende Brennkraftmaschinen |
US5190223A (en) * | 1988-10-10 | 1993-03-02 | Siemens Automotive L.P. | Electromagnetic fuel injector with cartridge embodiment |
DE4339948A1 (de) * | 1993-11-24 | 1995-06-01 | Bosch Gmbh Robert | Kraftstoffeinspritzpumpe |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001050008A3 (de) * | 1999-12-31 | 2002-02-14 | Bosch Gmbh Robert | Kraftstoffeinstpritzvorrichtung mit sowohl laminar als auch turbulent gedämpftem magnetventil |
US6910639B2 (en) | 1999-12-31 | 2005-06-28 | Robert Bosch Gmbh | Fuel injection device with magnet valve damped in both laminar and turbulent fashion |
WO2002042634A1 (de) * | 2000-11-23 | 2002-05-30 | Robert Bosch Gmbh | Magnetventilgesteuerte kraftstoffeinspritzpumpe für brennkraftmaschinen, insbesondere dieselmotoren |
US6884041B2 (en) | 2000-11-23 | 2005-04-26 | Robert Bosch Gmbh | Electromagnetic valve-controlled fuel injection pump for internal combustion engines, especially diesel engines |
WO2002044548A1 (de) * | 2000-11-30 | 2002-06-06 | Robert Bosch Gmbh | Hubgesteuertes ventil als kraftstoff-zumesseinrichtung eines einspritzsystems für brennkraftmaschinen |
US6802300B2 (en) | 2000-11-30 | 2004-10-12 | Robert Bosch Gmbh | Stroke-controlled valve as a fuel metering device of an injection system for internal combustion engines |
Also Published As
Publication number | Publication date |
---|---|
RU2175076C2 (ru) | 2001-10-20 |
DE19616084A1 (de) | 1997-10-30 |
EP0834012A1 (de) | 1998-04-08 |
CN1185196A (zh) | 1998-06-17 |
JP3737127B2 (ja) | 2006-01-18 |
CN1083532C (zh) | 2002-04-24 |
KR19990028328A (ko) | 1999-04-15 |
DE59609021D1 (de) | 2002-05-08 |
BR9609174A (pt) | 1999-05-04 |
US5829413A (en) | 1998-11-03 |
EP0834012B1 (de) | 2002-04-03 |
JPH11508665A (ja) | 1999-07-27 |
ES2175186T3 (es) | 2002-11-16 |
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