EP0045530A2 - Soupape injectrice de combustible pour moteurs à combustion - Google Patents

Soupape injectrice de combustible pour moteurs à combustion Download PDF

Info

Publication number: EP0045530A2
Authority: EP; European Patent Office
Prior art keywords: valve; needle; combustion engines; nozzle body; valve seat
Prior art date: 1980-08-06
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

EP81200371A

Other languages

German (de)

English (en)

Other versions

EP0045530A3 (en

EP0045530B1 (fr

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.)

1980-08-06

Filing date

1981-04-03

Publication date

1982-02-10

1981-04-03 Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH

1982-02-10 Publication of EP0045530A2 publication Critical patent/EP0045530A2/fr

1982-06-23 Publication of EP0045530A3 publication Critical patent/EP0045530A3/de

1984-09-05 Application granted granted Critical

1984-09-05 Publication of EP0045530B1 publication Critical patent/EP0045530B1/fr

Status Expired legal-status Critical Current

Links

Images

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
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
- F02M65/005—Measuring or detecting injection-valve lift, e.g. to determine injection timing

Definitions

the invention relates to a fuel injection valve according to the preamble of the main claim. It has already been discussed to produce the insulating layer between the needle shaft and the guide bore from wear-resistant plastic. However, it should be borne in mind that it should be difficult to comply with the composition of the mixture, the right-to-manufacture application process and the tolerance range of all parameters.
the fuel injection valve for internal combustion engines according to the invention with the characterizing feature of the main claim has the advantage over the discussed prior art that the insulating layer referred to as a hard coat layer made of aluminum oxide fulfills all requirements with regard to insulation, hardness and wear with a reasonable manufacturing effort.
Advantageous further developments of the invention are described in the subclaims.
With the configuration of the fuel injection nozzle according to claim 2, an easy to produce valve needle is created.
the method according to claim 3 is expediently proposed as a method for producing the fuel injection nozzle.
the fuel injection valve for internal combustion engines is mainly made of electrically conductive materials and is rotationally symmetrical with respect to the valve axis 9. It essentially consists of a nozzle holder 10, an adjoining intermediate plate 11 and a nozzle body 12, all of which are screwed together by a union nut 13.
a valve needle 15 has a needle shaft 18 which slides indirectly in a guide bore 14 of the nozzle body 12, a sealing cone 17 which interacts with a valve seat 16 of the nozzle body 12 and a pressure pin 19 which, when the injection valve is inoperative, is in constant contact with a pressure pin 20.
a spring space 21 open at the end with a shoulder 22 and a bore 23 made of g e are saved, to which a recess 24 leading to the outside is continued.
a helical compression spring 25 is supported on the one hand via a spring adjusting washer 26 on the shoulder 22 and on the other hand via an insulation to be described on the pressure bolt 20.
the fuel passes through inlet channels 29-32 and ring channels 33, 34 into a pressure chamber 27 of the nozzle body 12, which has a connection to a spray opening 28 via the valve seat 16.
a line element 40 made of electrically conductive materials consists of a contact pin 41 fastened in the bore 23 by means of an insulating sleeve 42, a contact spring 43 clamped onto the end section thereof and a contact cone 44 which is injected therein. This lies in a recess 46 in a pressure bolt 45, so that there is constant electrical contact between the two parts.
a guide surface 48 and a bearing surface 49 of the pressure pin 20 are coated with an insulation 47 made of abrasion-resistant material, so that the pressure spring 25 is electrically insulated from the pin 20.
a connecting piece 50 is fastened via an insulating sleeve 51, the contact tongue 52 of which is a line (not shown) Receives test device and the end portion of a connecting line 54 is soldered into the sleeve 53; the other end section of this connecting line is also connected to the contact pin 41.
a sleeve 60 made of aluminum is fastened on the needle shaft 18 of the valve needle 15, and the outer jacket of the sleeve 60 carries an aluminum oxide layer 61.
This layer is produced by anodic oxidation (anodizing) and slides in the guide bore 14 of the nozzle body 12.
the injector is screwed into its functional state in the engine block (not shown) and consequently has electrically conductive contact with the ground of the vehicle electrical system.
the electrical switch formed by the valve seat 16 and the sealing cone 17 is closed, as a result of which a circuit between the nozzle body 12 and the test device (not shown) is also closed.
the electrical switch 16/17 is open - and since the valve needle 15, the pressure pin 20, the contact pin 41 and the connecting piece 50 are electrically insulated from the nozzle body 12 and the nozzle holder 11 - the current path opens and thus interrupts the circuit electrical connection between engine block and test device.

Landscapes

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

EP81200371A 1980-08-06 1981-04-03 Soupape injectrice de combustible pour moteurs à combustion Expired EP0045530B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE3029721		1980-08-06
DE3029721A DE3029721A1 (de)	1980-08-06	1980-08-06	Kraftstoff-einspritzventil fuer brennkraftmaschinen

Publications (3)

Publication Number	Publication Date
EP0045530A2 true EP0045530A2 (fr)	1982-02-10
EP0045530A3 EP0045530A3 (en)	1982-06-23
EP0045530B1 EP0045530B1 (fr)	1984-09-05

Family

ID=6108983

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP81200371A Expired EP0045530B1 (fr)	1980-08-06	1981-04-03	Soupape injectrice de combustible pour moteurs à combustion

Country Status (4)

Country	Link
US (1)	US4398670A (fr)
EP (1)	EP0045530B1 (fr)
JP (1)	JPS5752672A (fr)
DE (2)	DE3029721A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2526483A1 (fr) *	1982-05-06	1983-11-10	Gurtner Sa	Procede et dispositif de visualisation de l'injection d'huile dans un moteur deux temps a graissage separe
GB2125894A (en) *	1982-08-26	1984-03-14	Lucas Ind Plc	I.C. engine fuel injection nozzle
GB2153907A (en) *	1983-12-14	1985-08-29	Diesel Kiki Co	Solenoid valve constituting an on-off switch
GB2154658A (en) *	1984-02-28	1985-09-11	Diesel Kiki Co	Valve unit including a switch
EP0116168B1 (fr) *	1983-01-13	1987-06-03	Robert Bosch Gmbh	Pompe d'injection de combustible
WO1992005363A1 (fr) *	1990-09-18	1992-04-02	Lucas Industries Public Limited Company	Gicleurs d'injection de carburant
WO1998007980A1 (fr) *	1996-08-17	1998-02-26	Robert Bosch Gmbh	Soupape d'injection, notamment pour injecter du carburant directement dans la chambre de combustion d'un moteur a combustion interne

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3241390A1 (de) *	1981-11-10	1983-05-19	Nippondenso Co., Ltd., Kariya, Aichi	Brennstoffeinspritzvorrichtung fuer dieselmotore
JPS59169210U (ja) *	1983-04-28	1984-11-13	本田技研工業株式会社	自動車の換気装置
GB8318635D0 (en) *	1983-07-09	1983-08-10	Lucas Ind Plc	Fuel injection nozzles
US4625918A (en) *	1983-07-29	1986-12-02	Diesel Kiki Co., Ltd.	Fuel injection valve
JPS6045872U (ja) *	1983-09-07	1985-03-30	株式会社ボッシュオートモーティブ　システム	燃料噴射弁
JPS6085248A (ja) *	1983-10-18	1985-05-14	Diesel Kiki Co Ltd	燃料噴射弁
JPS60135661A (ja) *	1983-12-21	1985-07-19	Ngk Spark Plug Co Ltd	弁開閉制御用ソレノイド付燃料噴射装置
US4662564A (en) *	1984-05-15	1987-05-05	Diesel Kiki Co., Ltd.	Fuel injection nozzle with timing sensor
US4573349A (en) *	1984-06-28	1986-03-04	International Harvester Company	Needle position indicator for a fuel injection nozzle holder
GB8719372D0 (en) *	1987-08-15	1987-09-23	Lucas Ind Plc	Fuel injection nozzle
AU5270490A (en) *	1989-03-07	1990-10-09	Karl Holm	An atomizing nozzle device for atomizing a fluid and an inhaler
US5333786A (en) *	1993-06-03	1994-08-02	Cummins Engine Company, Inc.	Fuel injection device for an internal combustion engine
WO1994029589A1 (fr) *	1993-06-15	1994-12-22	Invent Engineering Pty. Limited	Injecteur de carburant a detection de position
DE10026286A1 (de) *	2000-05-26	2001-12-13	Orange Gmbh	Einspritzventil zum Einspritzen von Kraftstoff in den Brennraum einer Brennkraftmaschine
WO2002016757A1 (fr) *	2000-08-21	2002-02-28	Volvo Lastvagnar Ab	Dispositif detecteur de la position d'une aiguille
DE10146781B4 (de) *	2001-09-22	2015-02-12	Robert Bosch Gmbh	Verfahren und Vorrichtung zur Überwachung der Ansteuerung eines Stellelements
DE10319329A1 (de) *	2003-04-29	2004-11-25	Siemens Ag	Einspritzventil mit Sitzkontaktschalter
CN1324233C (zh) *	2003-09-08	2007-07-04	金剑	一种能够承受高负荷的喷油器
EP1559903B1 (fr) *	2004-01-28	2008-12-10	Continental Automotive Italy S.p.A.	Injecteur de carburant avec aiguille déformable
CN100489300C (zh) *	2007-01-15	2009-05-20	金剑	一种新型双弹簧喷油器
FR3024183B1 (fr) *	2014-07-22	2019-07-26	Delphi Technologies Ip Limited	Injecteur de carburant

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SU182356A1 (ru) *	1964-06-11	1966-07-13	М. Г. Сандомирский	Способ определения начала открытия клапана
DE2305114A1 (de) *	1973-02-02	1974-08-08	Bosch Gmbh Robert	Kraftstoffeinspritzduese fuer brennkraftmaschinen
US4111178A (en) *	1976-11-08	1978-09-05	General Motors Corporation	Ignition system for use with fuel injected-spark ignited internal combustion engines
US4181010A (en) *	1978-06-29	1980-01-01	General Motors Corporation	Injection timing nozzle
DE2925187A1 (de) *	1979-06-22	1981-01-08	Bosch Gmbh Robert	Kraftstoff-einspritzduese fuer brennkraftmaschinen
FR2466630B1 (fr) *	1979-10-05	1985-06-28	Weber Spa	Injecteur a actionnement electromagnetique, pour moteurs a combustion interne

1980
- 1980-08-06 DE DE3029721A patent/DE3029721A1/de not_active Withdrawn
1981
- 1981-04-03 DE DE8181200371T patent/DE3165816D1/de not_active Expired
- 1981-04-03 EP EP81200371A patent/EP0045530B1/fr not_active Expired
- 1981-07-14 US US06/283,356 patent/US4398670A/en not_active Expired - Fee Related
- 1981-08-06 JP JP56122537A patent/JPS5752672A/ja active Granted

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2526483A1 (fr) *	1982-05-06	1983-11-10	Gurtner Sa	Procede et dispositif de visualisation de l'injection d'huile dans un moteur deux temps a graissage separe
GB2125894A (en) *	1982-08-26	1984-03-14	Lucas Ind Plc	I.C. engine fuel injection nozzle
EP0116168B1 (fr) *	1983-01-13	1987-06-03	Robert Bosch Gmbh	Pompe d'injection de combustible
GB2153907A (en) *	1983-12-14	1985-08-29	Diesel Kiki Co	Solenoid valve constituting an on-off switch
GB2154658A (en) *	1984-02-28	1985-09-11	Diesel Kiki Co	Valve unit including a switch
WO1992005363A1 (fr) *	1990-09-18	1992-04-02	Lucas Industries Public Limited Company	Gicleurs d'injection de carburant
WO1998007980A1 (fr) *	1996-08-17	1998-02-26	Robert Bosch Gmbh	Soupape d'injection, notamment pour injecter du carburant directement dans la chambre de combustion d'un moteur a combustion interne
US6155499A (en) *	1996-08-17	2000-12-05	Robert Bosch Gmbh	Injection valve, particularly for direct injection of fuel into the combustion chamber of an internal combustion engine

Also Published As

Publication number	Publication date
EP0045530A3 (en)	1982-06-23
JPS5752672A (en)	1982-03-29
JPS6358259B2 (fr)	1988-11-15
US4398670A (en)	1983-08-16
DE3029721A1 (de)	1982-03-04
DE3165816D1 (en)	1984-10-11
EP0045530B1 (fr)	1984-09-05

Legal Events

Date	Code	Title	Description
1981-12-12	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
1982-02-10	17P	Request for examination filed	Effective date: 19810403
1982-02-10	AK	Designated contracting states	Designated state(s): DE FR GB
1982-04-19	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1982-06-23	AK	Designated contracting states	Designated state(s): DE FR GB
1984-07-07	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1984-09-05	AK	Designated contracting states	Designated state(s): DE FR GB
1984-10-11	REF	Corresponds to:	Ref document number: 3165816 Country of ref document: DE Date of ref document: 19841011
1984-10-19	ET	Fr: translation filed
1985-07-09	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1985-07-09	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1985-09-11	26N	No opposition filed
1990-03-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 19900331 Year of fee payment: 10
1990-04-26	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19900426 Year of fee payment: 10
1990-06-26	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19900626 Year of fee payment: 10
1991-04-03	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Effective date: 19910403
1991-11-27	GBPC	Gb: european patent ceased through non-payment of renewal fee
1991-12-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Effective date: 19911230
1992-02-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Effective date: 19920201
1992-02-28	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST

Publication	Publication Date	Title
EP0045530A2 (fr)	1982-02-10	Soupape injectrice de combustible pour moteurs à combustion
EP1577539A2 (fr)	2005-09-21	Vanne magnétique avec une course d'armature ajustable et méthode pour l'ajuster
DE2305114A1 (de)	1974-08-08	Kraftstoffeinspritzduese fuer brennkraftmaschinen
EP0020888A1 (fr)	1981-01-07	Injecteur de combustible pour moteurs à combustion interne
DE3643523A1 (de)	1988-06-30	Einspritzventil fuer kraftstoffeinspritzanlagen
DE2922503A1 (de)	1980-01-17	Kraftstoffeinspritzeinrichtung
DE2235083A1 (de)	1974-01-31	Kraftstoffeinspritzduese fuer brennkraftmaschinen
DE2658783A1 (de)	1978-06-29	Luftverdichtende, direkt einspritzende brennkraftmaschine
EP1307647A1 (fr)	2003-05-07	Soupape d'injection de carburant et son procede de reglage
EP0139908B1 (fr)	1988-11-02	Doigt de distributeur pour moteur à combustion interne
EP1312796A2 (fr)	2003-05-21	Soupape d'injection de combustible
DE19717459C2 (de)	1999-03-18	Vorrichtung zum dosierten Einspritzen von Kraftstoff in einen Verbrennungsmotor
EP0294586B1 (fr)	1991-12-18	Buse d'injection de combustible pour moteurs à combustion interne
EP1328720A2 (fr)	2003-07-23	Soupape d'injection de carburant
DE2949705A1 (de)	1981-06-19	Kraftstoffeinspritzduese fuer brennkraftmaschinen
DE2930499A1 (de)	1981-02-12	Kraftstoff-einspritzpumpe fuer brennkraftmaschinen, insbesondere fuer dieselmotoren
DE2028453A1 (de)	1971-12-16	Kraftstoffeinspritzventil
DE2726300A1 (de)	1978-12-21	Kraftstoffeinspritzduese
DE2557224A1 (de)	1976-07-01	Kraftstoffeinspritzduese
DE3113755A1 (de)	1982-12-16	"kraftstoffeinspritzduese fuer brennkraftmaschinen"
DE3725618C2 (de)	2002-11-07	Kraftstoff-Einspritzdüse für Brennkraftmaschinen
DE868994C (de)	1953-03-02	Kraftstoff-Einspritzgeraet, insbesondere fuer Brennkraftmaschinen in Kraftfahrzeugen
DE2205383A1 (de)	1972-08-17	Kraftstoffeinspritzdüse
AT228567B (de)	1963-07-25	Brennkraftmaschine mit Kraftstoffeinspritzung
DE2826004A1 (de)	1980-01-03	Kraftstoffeinspritzduese fuer brennkraftmaschinen