EP0890735A3 - Fuel injection valve - Google Patents

Fuel injection valve Download PDF

Info

Publication number
EP0890735A3
EP0890735A3 EP98109048A EP98109048A EP0890735A3 EP 0890735 A3 EP0890735 A3 EP 0890735A3 EP 98109048 A EP98109048 A EP 98109048A EP 98109048 A EP98109048 A EP 98109048A EP 0890735 A3 EP0890735 A3 EP 0890735A3
Authority
EP
European Patent Office
Prior art keywords
valve
fuel injection
spray holes
injection valve
valve body
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
EP98109048A
Other languages
German (de)
French (fr)
Other versions
EP0890735B1 (en
EP0890735A2 (en
EP0890735B2 (en
Inventor
Karl Hofmann
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7835445&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0890735(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0890735A2 publication Critical patent/EP0890735A2/en
Publication of EP0890735A3 publication Critical patent/EP0890735A3/en
Publication of EP0890735B1 publication Critical patent/EP0890735B1/en
Application granted granted Critical
Publication of EP0890735B2 publication Critical patent/EP0890735B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1806Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
    • F02M61/182Discharge orifices being situated in different transversal planes with respect to valve member direction of movement
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/168Assembling; Disassembling; Manufacturing; Adjusting
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1806Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/18Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
    • F02M61/1806Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for characterised by the arrangement of discharge orifices, e.g. orientation or size
    • F02M61/184Discharge orifices having non circular sections

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

Bei einem Kraftstoffeinspritzventil für Brennkraftmaschinen umfassend ein in einem Ventilkörper (43) entgegen der Rückstellkraft einer Ventilfeder verschiebliches Ventilglied (41) mit einer Ventildichtfläche (44), die mit einem an dem Ventilkörper (43) angeordneten Ventilsitz (45) zusammenwirkt, und mit mehreren unterhalb des Ventilsitzes (45) in dem Ventilkörper (43) angeordneten Spritzlöchern (53,57), deren Einlaßöffnungen (60) abgerundet sind, wobei ein Teil der Spritzlöcher (53) wenigstens einen von dem Rest der Spritzlöcher (57) unterschiedlichen Rundungsgrad aufweist.

Figure 00000001
In a fuel injection valve for internal combustion engines, a valve member (41) which is displaceable in a valve body (43) against the restoring force of a valve spring and has a valve sealing surface (44) which interacts with a valve seat (45) arranged on the valve body (43) and with several below of the valve seat (45) in the valve body (43) arranged spray holes (53, 57), the inlet openings (60) of which are rounded, a part of the spray holes (53) having at least one degree of rounding different from the rest of the spray holes (57).
Figure 00000001

EP98109048.3A 1997-07-11 1998-05-19 Fuel injection valve Expired - Lifetime EP0890735B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19729827 1997-07-11
DE19729827A DE19729827A1 (en) 1997-07-11 1997-07-11 Fuel injector

Publications (4)

Publication Number Publication Date
EP0890735A2 EP0890735A2 (en) 1999-01-13
EP0890735A3 true EP0890735A3 (en) 2001-10-10
EP0890735B1 EP0890735B1 (en) 2006-10-18
EP0890735B2 EP0890735B2 (en) 2014-09-10

Family

ID=7835445

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98109048.3A Expired - Lifetime EP0890735B2 (en) 1997-07-11 1998-05-19 Fuel injection valve

Country Status (4)

Country Link
US (1) US5992766A (en)
EP (1) EP0890735B2 (en)
JP (1) JP4154033B2 (en)
DE (2) DE19729827A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19914719C2 (en) * 1999-03-31 2001-05-03 Siemens Ag Device for hydroerosive rounding of inlet edges of the spray hole channels in a nozzle body
DE19931890A1 (en) * 1999-07-08 2001-01-18 Siemens Ag Edge rounding method for combustion engine fuel injection nozzle injection orifice channel
JP4189714B2 (en) * 2000-08-03 2008-12-03 株式会社デンソー Fuel injection device
DE10156020A1 (en) * 2001-11-15 2003-07-17 Bosch Gmbh Robert Fuel injector
DE10219608A1 (en) * 2002-05-02 2003-11-20 Bosch Gmbh Robert Fuel injection valve for internal combustion engines
DE10330256A1 (en) 2003-07-04 2005-01-20 Robert Bosch Gmbh Fuel injection valve for internal combustion engine, comprises bulges arranged such that the two connecting lines of points of largest distance to the center form an angle of less than 180 degrees with the mirror plane
DE102004062008A1 (en) * 2004-12-23 2006-07-13 Robert Bosch Gmbh Fuel filter with outlet openings, which are preferably processed by a hydroerosive method
US7572997B2 (en) * 2007-02-28 2009-08-11 Caterpillar Inc. EDM process for manufacturing reverse tapered holes
EP2333307A4 (en) * 2008-09-24 2013-03-13 Toyota Motor Co Ltd Fuel injection valve for internal combustion engine and method of manufacturing the same
WO2019030078A1 (en) * 2017-08-08 2019-02-14 Robert Bosch Gmbh Fuel injector nozzle
DE102019202073A1 (en) 2019-02-15 2020-08-20 Robert Bosch Gmbh Method for producing an injection nozzle for injecting fuel into a combustion chamber of an internal combustion engine and nozzle arrangement with an injection nozzle

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4069978A (en) * 1975-12-20 1978-01-24 Klockner-Humboldt-Deutz Aktiengesellschaft Fuel injection valve
US4578164A (en) * 1983-08-24 1986-03-25 Nissan Motor Co., Ltd. Method of electrolytically finishing spray-hole of fuel injection nozzle
JPH0267459A (en) * 1988-08-31 1990-03-07 Nippon Denso Co Ltd Fuel injection nozzle
EP0370659A1 (en) * 1988-11-19 1990-05-30 Lucas Industries Public Limited Company Fuel injection nozzle
DE19507188C1 (en) * 1995-03-02 1996-08-14 Bosch Gmbh Robert Fuel injection valve for internal combustion engines
EP0809017A1 (en) * 1996-05-22 1997-11-26 Steyr-Daimler-Puch Aktiengesellschaft Two-stage fuel injection nozzel for internal combustion engine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58106167A (en) 1981-12-21 1983-06-24 Hino Motors Ltd Fuel injection nozzle of internal-combustion engine
JPS6049262U (en) * 1983-09-14 1985-04-06 日産自動車株式会社 Diesel engine fuel injection valve
JPH0494452A (en) * 1990-08-08 1992-03-26 Nissan Motor Co Ltd Fuel injection nozzle
JPH0583367U (en) * 1992-04-20 1993-11-12 日産ディーゼル工業株式会社 Fuel injection nozzle for direct injection diesel engine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4069978A (en) * 1975-12-20 1978-01-24 Klockner-Humboldt-Deutz Aktiengesellschaft Fuel injection valve
US4578164A (en) * 1983-08-24 1986-03-25 Nissan Motor Co., Ltd. Method of electrolytically finishing spray-hole of fuel injection nozzle
JPH0267459A (en) * 1988-08-31 1990-03-07 Nippon Denso Co Ltd Fuel injection nozzle
EP0370659A1 (en) * 1988-11-19 1990-05-30 Lucas Industries Public Limited Company Fuel injection nozzle
DE19507188C1 (en) * 1995-03-02 1996-08-14 Bosch Gmbh Robert Fuel injection valve for internal combustion engines
EP0809017A1 (en) * 1996-05-22 1997-11-26 Steyr-Daimler-Puch Aktiengesellschaft Two-stage fuel injection nozzel for internal combustion engine

Also Published As

Publication number Publication date
US5992766A (en) 1999-11-30
EP0890735B1 (en) 2006-10-18
EP0890735A2 (en) 1999-01-13
JPH1193806A (en) 1999-04-06
DE19729827A1 (en) 1999-01-14
JP4154033B2 (en) 2008-09-24
DE59813768D1 (en) 2006-11-30
EP0890735B2 (en) 2014-09-10

Similar Documents

Publication Publication Date Title
EP0890735A3 (en) Fuel injection valve
EP0665372B1 (en) Device for feeding a combustion engine with fuel from a tank
EP1255038A3 (en) Fuel injection system
EP0916837A3 (en) Exhaust gas recirculating device for a combustion engine
EP0819843A3 (en) Flow valve
CA2217510A1 (en) Fuel injector check valve
EP0961027A3 (en) Pressure control valve
EP1098085A3 (en) Check-valve for an exhaust gas recirculation conduit
DE19516890A1 (en) Device for supplying an internal combustion engine with fuel from a storage container
EP0987412A3 (en) Intake system
DE4216832A1 (en) Fuel pressure control valve for internal combustion engines
EP1291561A3 (en) Cylinder head gasket
EP0816732A3 (en) Electromagnetic valve
EP0909885A3 (en) Combustion engine with spark ignition
WO1988009867A1 (en) Fuel injection system with umbrella check valve
EP1335128A3 (en) High pressure hydraulic valve, in particularly for an internal combustion engine fuel injection apparatus
EP0955128A3 (en) Sealing arrangement, especially for injectors of an internal combustion engine and method for manufacturing such a sealing seat
JPH0227112A (en) Nozzle assembly for cooling crown of piston for internal combustione engine
EP0922850A3 (en) Fuel supply system
DE69016709D1 (en) Valve and spring arrangement for an internal combustion engine.
EP1164262A3 (en) Oil module for combustion engine
EP0979938A3 (en) Fluid valve
EP1312796A3 (en) Fuel injection valve
EP0894956A3 (en) Spark-ignition internal combustion engine having a combustion chamber provided with three valves and a central spark-plug
EP1134406A3 (en) Internal combustion engine with injection valves

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

Kind code of ref document: A2

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

Kind code of ref document: A2

Designated state(s): DE FR GB

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

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

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20020410

AKX Designation fees paid

Free format text: DE FR GB

17Q First examination report despatched

Effective date: 20040113

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

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: 59813768

Country of ref document: DE

Date of ref document: 20061130

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20070118

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: SIEMENS VDO AUTOMOTIVE AG

Effective date: 20070717

PLAF Information modified related to communication of a notice of opposition and request to file observations + time limit

Free format text: ORIGINAL CODE: EPIDOSCOBS2

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: CONTINENTAL AUTOMOTIVE GMBH

Effective date: 20070717

APBM Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOSNREFNO

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

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

Ref country code: GB

Payment date: 20140520

Year of fee payment: 17

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

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

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20140910

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): DE FR GB

REG Reference to a national code

Ref country code: DE

Ref legal event code: R102

Ref document number: 59813768

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R102

Ref document number: 59813768

Country of ref document: DE

Effective date: 20140910

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

Effective date: 20150519

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: 20150519

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 19

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

Ref country code: FR

Payment date: 20160523

Year of fee payment: 19

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

Ref country code: DE

Payment date: 20160726

Year of fee payment: 19

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59813768

Country of ref document: DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20180131

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: 20171201

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: 20170531