EP1316719A3 - Injector with a magnetic valve for controlling an injection valve - Google Patents

Injector with a magnetic valve for controlling an injection valve Download PDF

Info

Publication number
EP1316719A3
EP1316719A3 EP02022592A EP02022592A EP1316719A3 EP 1316719 A3 EP1316719 A3 EP 1316719A3 EP 02022592 A EP02022592 A EP 02022592A EP 02022592 A EP02022592 A EP 02022592A EP 1316719 A3 EP1316719 A3 EP 1316719A3
Authority
EP
European Patent Office
Prior art keywords
armature
valve
injector
space
controlling
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.)
Granted
Application number
EP02022592A
Other languages
German (de)
French (fr)
Other versions
EP1316719A2 (en
EP1316719B1 (en
Inventor
Ruediger Bauer
Rainer Schnatterer
Matthias Zettl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1316719A2 publication Critical patent/EP1316719A2/en
Publication of EP1316719A3 publication Critical patent/EP1316719A3/en
Application granted granted Critical
Publication of EP1316719B1 publication Critical patent/EP1316719B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F02M55/002—Arrangement of leakage or drain conduits in or from 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
    • 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
    • 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
    • F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic 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
    • 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
    • F02M63/0033—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
    • F02M63/0036—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat with spherical or partly spherical shaped valve member ends
    • 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
    • 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
    • F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
    • F02M2547/003—Valve inserts containing control chamber and valve piston

Abstract

Die Erfindung betrifft einen Injektor, insbesondere zur Kraftstoffeinspritzung, mit einem Magnetventil (1) zur Steuerung eines Einspritzventils (2), wobei das Magnetventil (1) einen bewegbaren Anker (3) aufweist, der auf einen Ventilsitz (4) im unteren Ankerraum (5) aufbringbar ist. Der untere Ankerraum (5) steht über Bohrungen (6, 7) mit dem Steuerdruckraum (8) des Einspritzventils (2) in Fluidverbindung. Über eine Rücklaufbohrung (9) können auftretende Leckmengen über den unteren Ankerraum (5) in einen Tank zurückgeführt werden. Um beim Schließen des Ventilsitzes (4) durch den Anker (3) ein Ankerprellen zu verhindern, wird vorgeschlagen, in dem Injektor Mittel zur Reduzierung von im unteren Ankerraum (5) auftretenden Druckschwankungen vorzusehen. Die Beseitigung von Druckschwankungen im unteren Ankerraum (5) führt weitestgehend zu einer Beseitigung des Ankerprellens.

Figure 00000001
The invention relates to an injector, in particular for fuel injection, with a solenoid valve (1) for controlling an injection valve (2), the solenoid valve (1) having a movable armature (3) which is mounted on a valve seat (4) in the lower armature space (5 ) can be applied. The lower armature chamber (5) is in fluid communication with the control pressure chamber (8) of the injection valve (2) via bores (6, 7). Leakage quantities that occur can be returned to a tank via the lower anchor space (5) via a return bore (9). In order to prevent armature bouncing when the valve seat (4) is closed by the armature (3), it is proposed to provide means in the injector for reducing pressure fluctuations occurring in the lower armature space (5). The elimination of pressure fluctuations in the lower anchor space (5) largely eliminates the anchor bounce.
Figure 00000001
EP02022592A 2001-11-30 2002-10-09 Injector with a magnetic valve for controlling an injection valve Expired - Lifetime EP1316719B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10159003A DE10159003A1 (en) 2001-11-30 2001-11-30 Injector with a solenoid valve for controlling an injection valve
DE10159003 2001-11-30

Publications (3)

Publication Number Publication Date
EP1316719A2 EP1316719A2 (en) 2003-06-04
EP1316719A3 true EP1316719A3 (en) 2003-08-06
EP1316719B1 EP1316719B1 (en) 2008-02-06

Family

ID=7707669

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02022592A Expired - Lifetime EP1316719B1 (en) 2001-11-30 2002-10-09 Injector with a magnetic valve for controlling an injection valve

Country Status (4)

Country Link
US (1) US6877680B2 (en)
EP (1) EP1316719B1 (en)
JP (1) JP3902757B2 (en)
DE (2) DE10159003A1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7207760B2 (en) * 2001-12-06 2007-04-24 Junkers John K Washer and fastener provided with a washer
DE102005004327A1 (en) * 2005-01-31 2006-08-03 Robert Bosch Gmbh Fuel injector for use in internal combustion engine, has functional units reversibly connected by non-positive connecting unit and positioning pin at butt joint, and separately produced and tested, where connecting unit has coupling nut
DE102006027780A1 (en) 2006-06-16 2007-12-20 Robert Bosch Gmbh fuel injector
DE102006040645A1 (en) * 2006-08-30 2008-03-13 Robert Bosch Gmbh Injector for internal combustion engines
ATE423901T1 (en) * 2006-10-24 2009-03-15 Fiat Ricerche SOLENOID METERING VALVE FOR A FUEL INJECTION VALVE
DE102007001550A1 (en) * 2007-01-10 2008-07-17 Robert Bosch Gmbh Injector for injecting fuel
US9683472B2 (en) 2010-02-10 2017-06-20 Tenneco Automotive Operating Company Inc. Electromagnetically controlled injector having flux bridge and flux break
DE112011100504B4 (en) * 2010-02-10 2023-08-03 Tenneco Automotive Operating Company Inc. Pressurized swirl flow injector with reduced flow variability and reverse flow
US8973895B2 (en) 2010-02-10 2015-03-10 Tenneco Automotive Operating Company Inc. Electromagnetically controlled injector having flux bridge and flux break
US8740113B2 (en) 2010-02-10 2014-06-03 Tenneco Automotive Operating Company, Inc. Pressure swirl flow injector with reduced flow variability and return flow
DE102011083005A1 (en) 2011-09-20 2013-03-21 Man Diesel & Turbo Se Method for rinsing armature space of magnetic valve utilized for e.g. controlling mass flow of liquid in internal combustion engine, involves supplying rinsing fluid set under flushing pressure to armature chamber
EP2620632B1 (en) * 2012-01-26 2015-12-09 Delphi International Operations Luxembourg S.à r.l. A control valve of a fuel injector
US8978364B2 (en) 2012-05-07 2015-03-17 Tenneco Automotive Operating Company Inc. Reagent injector
US8910884B2 (en) 2012-05-10 2014-12-16 Tenneco Automotive Operating Company Inc. Coaxial flow injector
DE102013003104A1 (en) * 2013-02-25 2014-08-28 L'orange Gmbh Fuel injector for use with diesel fuel in fuel injection device of fuel injection system, has pressure shock absorber that is arranged in leakage flow path to attenuate pressure waves, which run through leakage flow path to actuator chamber
DE102015204037A1 (en) * 2015-03-06 2016-09-08 Robert Bosch Gmbh Method for controlling a common-rail injection system
US10704444B2 (en) 2018-08-21 2020-07-07 Tenneco Automotive Operating Company Inc. Injector fluid filter with upper and lower lip seal
CN114458508B (en) * 2022-03-09 2022-12-13 哈尔滨工程大学 Electromagnetic-permanent magnet coupled high-speed electromagnetic valve for realizing high dynamic response based on permanent magnet

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06147050A (en) * 1992-11-02 1994-05-27 Nippondenso Co Ltd Fuel injection system
JPH08303316A (en) * 1995-05-01 1996-11-19 Nippondenso Co Ltd Fuel injection device
DE19650865A1 (en) * 1996-12-07 1998-06-10 Bosch Gmbh Robert magnetic valve
DE19708104A1 (en) * 1997-02-28 1998-09-03 Bosch Gmbh Robert magnetic valve
DE10009037A1 (en) * 2000-02-25 2001-09-06 Bosch Gmbh Robert Control valve for fuel injection nozzle, has armature plate arranged in damping chamber and is integral with pressure piece that cooperates with valve element

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61226527A (en) * 1985-03-30 1986-10-08 Nippon Denso Co Ltd Fuel injection control device
US4911127A (en) * 1989-07-12 1990-03-27 Cummins Engine Company, Inc. Fuel injector for an internal combustion engine
US5842452A (en) * 1997-11-25 1998-12-01 Pattanaik; Satish Idle stabilizing variable area inlet for a hydraulically-actuated fuel injection system
DE19910589C2 (en) * 1999-03-10 2002-12-05 Siemens Ag Injection valve for an internal combustion engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06147050A (en) * 1992-11-02 1994-05-27 Nippondenso Co Ltd Fuel injection system
JPH08303316A (en) * 1995-05-01 1996-11-19 Nippondenso Co Ltd Fuel injection device
DE19650865A1 (en) * 1996-12-07 1998-06-10 Bosch Gmbh Robert magnetic valve
DE19708104A1 (en) * 1997-02-28 1998-09-03 Bosch Gmbh Robert magnetic valve
DE10009037A1 (en) * 2000-02-25 2001-09-06 Bosch Gmbh Robert Control valve for fuel injection nozzle, has armature plate arranged in damping chamber and is integral with pressure piece that cooperates with valve element

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 465 (M - 1665) 30 August 1994 (1994-08-30) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 03 31 March 1997 (1997-03-31) *

Also Published As

Publication number Publication date
JP3902757B2 (en) 2007-04-11
DE50211643D1 (en) 2008-03-20
JP2003172232A (en) 2003-06-20
EP1316719A2 (en) 2003-06-04
DE10159003A1 (en) 2003-06-18
US20030150930A1 (en) 2003-08-14
US6877680B2 (en) 2005-04-12
EP1316719B1 (en) 2008-02-06

Similar Documents

Publication Publication Date Title
EP1316719A3 (en) Injector with a magnetic valve for controlling an injection valve
EP2004983B1 (en) Fuel injector
EP1577539A2 (en) Solenoid valve with adjustable armature lift and method for adjusting the same
DE19644915A1 (en) high pressure pump
DE10024268B4 (en) Device for gasoline direct injection in a reciprocating internal combustion engine
EP1306545A3 (en) Solenoid valve for controlling an injection valve
DE102011078407A1 (en) Switching valve for controlling a fuel injector and fuel injector
EP1867868B1 (en) Fuel injector with safety operating valve
EP1923564A2 (en) Fuel injector
EP1651862A1 (en) Control valve for a fuel injector comprising a pressure exchanger
DE102006003484A1 (en) Device for injecting fuel
EP1939441A2 (en) Fuel injector
EP1421272B1 (en) Fuel-injection device for internal combustion engines
EP1144842A1 (en) Injector for a fuel injection system for internal combustion engines comprising an injector needle that projects into the valve control space
DE102015209553B3 (en) Electromagnetic switching valve device
EP2314860B1 (en) Fuel injector
EP1983186A2 (en) Pressure-stabilised actuator
DE102008042227A1 (en) Fuel injector, particularly common rail injector for injecting fuel into combustion chamber of internal-combustion engine, comprises injection valve element, which is adjustable between closing position and opening position
WO2002092999A1 (en) Pressure amplifier for a fuel injection device
EP1980742B1 (en) Fuel injector with integrated pressure intensifier
DE102009046373A1 (en) Magnetic valve e.g. pressure-balanced valve for use in common rail-injector for injecting diesel into combustion chamber of diesel internal combustion engine, has damping chamber connected with low-pressure area by connection
DE102007010497A1 (en) Injector, particularly common-rail-injector for injecting fuel into combustion chamber of internal-combustion engine, has control valve, where return motion is sealed by separate or integrally formed sealing piston
DE102007026834A1 (en) Electromagnetic control valve e.g. for internal combustion engine, has valve unit, full valve casing, inlet port, consumer connection and piston valve which is relocatable compared with valve casing
DE102008043614A1 (en) Fuel injector
DE19949525B4 (en) Pressure intensifier for a fuel injection system for internal combustion engines with hydraulically assisted refilling

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

RIC1 Information provided on ipc code assigned before grant

Ipc: 7F 02M 55/00 B

Ipc: 7F 02M 47/02 A

Ipc: 7F 02M 59/46 B

17P Request for examination filed

Effective date: 20040206

AKX Designation fees paid

Designated state(s): DE FR GB IT

17Q First examination report despatched

Effective date: 20040721

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 50211643

Country of ref document: DE

Date of ref document: 20080320

Kind code of ref document: P

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20081107

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20101021

Year of fee payment: 9

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20121009

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121009

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20131018

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20131025

Year of fee payment: 12

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20141031

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20141009

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20171206

Year of fee payment: 16

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50211643

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190501