EP0386446B1 - Conduit de distribution de carburant pour systèmes d'injection de moteurs à combustion interne - Google Patents

Conduit de distribution de carburant pour systèmes d'injection de moteurs à combustion interne Download PDF

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Publication number
EP0386446B1
EP0386446B1 EP90101711A EP90101711A EP0386446B1 EP 0386446 B1 EP0386446 B1 EP 0386446B1 EP 90101711 A EP90101711 A EP 90101711A EP 90101711 A EP90101711 A EP 90101711A EP 0386446 B1 EP0386446 B1 EP 0386446B1
Authority
EP
European Patent Office
Prior art keywords
valve
collar
fuel injection
fuel
shaped ring
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
Application number
EP90101711A
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German (de)
English (en)
Other versions
EP0386446A1 (fr
Inventor
Karl Dipl -Ing. Gmelin
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
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Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0386446A1 publication Critical patent/EP0386446A1/fr
Application granted granted Critical
Publication of EP0386446B1 publication Critical patent/EP0386446B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
    • F02M61/145—Arrangements of injectors with respect to engines; Mounting of injectors the injection nozzle opening into the air intake conduit
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • 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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
    • F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
    • F02M69/465—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails

Definitions

  • the invention relates to a fuel distributor for fuel injection systems of internal combustion engines of the type defined in the preamble of claim 1.
  • Such a fuel injector is e.g. known from GB-A-21 38 887, in which the fuel connection to the fuel distributor is made from above towards the valve housing via a connecting piece with the interposition of an elastic ring which seals and dampens vibrations.
  • an elastic ring which seals and dampens vibrations.
  • valve needle strikes the stop disk which delimits the needle stroke when the valve is opened, and considerable valve noises are passed on to the valve body.
  • the valve body is supported in the upper and lower area by large O-rings against the wall of the receiving bore, which on the one hand serve to ensure the fuel tightness of the fuel injection valves to the outside and on the other hand the valve carrier in the radial direction Decouple sound from the valve body.
  • structure-borne noise is still transmitted to the valve carrier via the body clamped by the holder on the valve carrier and then passed on through the fuel supply line or the connector housing.
  • the fuel distributor according to the invention with the characterizing features of claim 1 has the advantage that a complete acoustic decoupling of the fuel injector from the valve carrier is achieved by the molded ring made of elastomer. The sound decoupling is separated from the fuel seal, which is still done via O-rings. Any hard coupling between the valve body of the fuel injection valve and valve carrier is thus avoided.
  • the fuel distributor shown in longitudinal section and only in sections in FIG. 1 is used for mounting, fueling and electrical contacting of electromagnetically actuated fuel injection valves 10 in fuel injection systems of internal combustion engines.
  • the fuel rail has a valve carrier 11 with stepped receiving bores 12 for one fuel injection valve 10 each.
  • Each receiving bore 12 connected to a fuel supply line 31 guided in the valve carrier 11 is designed as a through bore and has an orifice opening 14 for the injection nozzle 13 of the fuel injection valve 10.
  • the fuel injection valve 10 shown in longitudinal section and in detail in FIG. 2 has a valve body or a valve housing 15, which is closed at the end by a plug housing 16.
  • the valve needle 15 and the electromagnet 17 for actuating the valve needle, which cannot be seen here, are accommodated in the valve housing 15.
  • the winding ends of the excitation winding 18 of the electromagnet 17 are electrically conductively connected to plug pins 19 which extend in the axial direction and are electrically conductively connected to contact lugs 20 accessible externally on the plug housing 16 via contact elements in the plug housing 16.
  • the connector housing 16 is seated with an end flange 26 on the annular end surface 30 of the valve housing 15, and projects with a circumferential collar 21 on the end flange 26 over the circumference of the valve housing 15.
  • the valve housing When the fuel injection valve 10 is inserted into the receiving bore 12, the valve housing is supported 15 radially on the bore wall of the receiving bore 12 via two large O-rings 22 and 23 serving to seal the fuel injection valve 10 to the outside, of which the O-ring 22 is arranged near the injection nozzle 13 and the O-ring 23 near the plug housing 16 while the collar 21 rests on the end flange 26 of the plug housing 16 on an annular support shoulder 24 surrounding the receiving bore 12 in the valve carrier 11.
  • the fuel injection valve 10 is fastened in the receiving bore 12 by a holder 25, which is only indicated in sections in FIG. 1 and is fastened to the valve carrier 11 with an axial force of greater than 400 N.
  • the holder 25 engages on the rear side of the end flange 26 facing away from the valve housing 15 on the plug housing 16 and on the surface of the valve carrier 11. The fuel injection valve 10 is thus fixed in the receiving bore 12 in the axial direction.

Landscapes

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

Claims (3)

  1. Répartiteur de carburant pour des installations d'injection de carburant de moteurs à combustion interne avec au moins une soupape d'injection de carburant (10) comportant un boîtier de soupape (15) et avec un support de soupape (11) comportant au moins un alésage réception (12) ouvert axialement et échelonné, dans lequel la soupape d'injection de carburant (10) est mise en place avec son boîtier de soupape (15) et avec un appui (25) au moyen duquel la soupape d'injection de carburant (10) est fermement serrée contre le support de soupape (11), ainsi qu'avec une canalisation d'alimentation en carburant (31) et une collerette (21) prévue sur la soupape d'injection de carburant (10) et qui est entourée par un anneau moulé (27) en un matériau élastomère, tandis que l'anneau moulé (27) recouvre au moins partiellement deux faces frontales de la collerette (21) et s'applique contre l'appui (25) sur l'une des parties frontales de la collerette (21) dans la zone d'une surface d'appui de cet appui (25), répartiteur de carburant caractérisé en ce que le boîtier (15) de la soupape d'injection de carburant (10) prend appui radialement contre la paroi de l'alésage de réception (12) par l'intermédiaire d'au moins deux anneaux toriques (22, 23) tandis que sur le support de soupape (11) il est prévu un épaulement d'appui (24) entourant l'alésage de réception (12) et la canalisation d'alimentation en carburant (31) reliée à l'alésage de réception (12) entre les anneaux toriques (22, 23), l'anneau moulé (27) s'appliquant sur l'autre face frontale de la collerette (21) contre l'épaulement d'appui (24) du support de soupape (11) et la collerette (21) faisant partie d'un boîtier de connecteur (16) qui est placé sur une extrémité frontale (30) du boîtier de soupape (15) et qui contient des éléments électriques de raccordement (20) pour l'enroulement d'excitation (18) d'un électro-aimant (17).
  2. Répartiteur selon la revendication 1, caractérisé en ce que l'anneau moulé (27) a un profil en forme de U, dont les branches (28, 29) s'étendent transversalement par rapport à l'axe de l'anneau et présentent entre elles un intervalle libre correspondant à la largeur axiale de la collerette.
  3. Répartiteur selon la revendication 1 ou la revendication 2, caractérisé en ce que l'anneau moulé (27) est vulcanisé sur la collerette (21).
EP90101711A 1989-03-10 1990-01-29 Conduit de distribution de carburant pour systèmes d'injection de moteurs à combustion interne Expired - Lifetime EP0386446B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3907765 1989-03-10
DE3907765A DE3907765A1 (de) 1989-03-10 1989-03-10 Kraftstoffverteiler fuer kraftstoffeinspritzanlagen von brennkraftmaschinen

Publications (2)

Publication Number Publication Date
EP0386446A1 EP0386446A1 (fr) 1990-09-12
EP0386446B1 true EP0386446B1 (fr) 1993-03-31

Family

ID=6376003

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90101711A Expired - Lifetime EP0386446B1 (fr) 1989-03-10 1990-01-29 Conduit de distribution de carburant pour systèmes d'injection de moteurs à combustion interne

Country Status (5)

Country Link
US (1) US5046469A (fr)
EP (1) EP0386446B1 (fr)
JP (1) JPH02271069A (fr)
BR (1) BR9001127A (fr)
DE (2) DE3907765A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH087095Y2 (ja) * 1990-11-13 1996-02-28 三菱電機株式会社 内燃機関の燃料供給装置
DE4118512A1 (de) * 1991-06-06 1992-12-10 Bosch Gmbh Robert Elektrisch betaetigbares brennstoffeinspritzventil und verfahren zu dessen elektrischer kontaktierung
DE4131537A1 (de) * 1991-09-21 1993-04-01 Bosch Gmbh Robert Brennstoffverteiler
US5176121A (en) * 1992-04-06 1993-01-05 Siemens Automotive Limited Bumpers for protecting an O-ring seal of a fuel injector during the injector's insertion into a socket
US5363825A (en) * 1993-01-27 1994-11-15 Volkswagen Ag Fuel injection arrangement for an internal combustion engine having a plurality of electric fuel injection valves
US5752487A (en) 1997-06-11 1998-05-19 Caterpillar Inc. Injector combustion gas seal
DE10108193A1 (de) * 2001-02-21 2002-08-29 Bosch Gmbh Robert Befestigungsvorrichtung
DE102005011574A1 (de) * 2005-03-14 2006-09-21 Robert Bosch Gmbh Zwischenelement für ein Brennstoffeinspritzventil
JP2010281296A (ja) * 2009-06-08 2010-12-16 Hitachi Automotive Systems Ltd 燃料噴射弁
JP2011052559A (ja) * 2009-08-31 2011-03-17 Hitachi Automotive Systems Ltd 内燃機関の燃料噴射弁
JP5400965B2 (ja) * 2010-07-30 2014-01-29 トヨタ自動車株式会社 燃料噴射弁用制振インシュレータ
DE102020004112A1 (de) 2020-07-08 2022-01-13 Michael Mayer Verbundexzentergetriebe mit gekoppelten umlaufenden Wellen zur Umwandlung hin- und hergehender Bewegungen in eine kontinuierliche Drehbewegung und umgekehrt
DE102021003329A1 (de) 2021-06-28 2022-12-29 Michael Mayer Verbundexzentergetriebe zur Umwandlung gerader hin- und hergehender Bewegungen in eine kontinuierliche Drehbewegung und umgekehrt im Sinusverhältnis

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2208646C2 (de) * 1972-02-24 1986-11-06 Robert Bosch Gmbh, 7000 Stuttgart Vorrichtung zur Befestigung elektromagnetischer Einspritzventile an gemischverdichtenden Brennkraftmaschinen
US4201172A (en) * 1972-07-10 1980-05-06 Robert Bosch Gmbh Fuel injection nozzle assembly for internal combustion engines
GB1429295A (en) * 1972-07-28 1976-03-24 Lucas Electrical Co Ltd Mounting arrangements of injectors for ic engine fuel injec tion systems
DE2242824C3 (de) * 1972-08-31 1975-05-15 Dr.-Ing.H.C. F. Porsche Ag, 7000 Stuttgart Brennstoffeinspritzdüsenbefestigung
DE2933702C2 (de) * 1979-08-21 1981-09-17 Goetze Ag, 5093 Burscheid Kolbenring für insbesondere Brennkraftmaschinen
AU8012482A (en) * 1981-02-04 1982-08-12 Eaton Corporation Ultrasonic atomizer
US4348032A (en) * 1981-03-19 1982-09-07 The Fluorocarbon Company Head gasket having resilient seal with Belleville springs
JPS57193765A (en) * 1981-05-08 1982-11-29 Bosch Gmbh Robert Injector for fuel
AU559746B2 (en) * 1981-11-04 1987-03-19 Honda Giken Kogyo Kabushiki Kaisha Injector mounting
DE3228508A1 (de) * 1982-07-30 1984-02-02 Robert Bosch Gmbh, 7000 Stuttgart Kraftstoffversorgungsleitung
CA1213803A (fr) * 1983-04-27 1986-11-12 Honda Giken Kogyo Kabushiki Kaisha (Also Trading As Honda Motor Co., Ltd .) Systeme d'injection de carburant
JPS6046335U (ja) * 1983-09-02 1985-04-01 マツダ株式会社 自動車のラジエ−タ支持構造
IT1182605B (it) * 1985-10-11 1987-10-05 Weber Spa Dispositivo per l alimentazione di una miscela di aria e carburante ad un cellettore di un motore a combustione interna
US4857003A (en) * 1987-02-06 1989-08-15 Robert Bosch Gmbh Apparatus for electrical connection of electromagnetically actuatable fuel injection valves
DE3730571C2 (de) * 1987-09-11 1998-07-02 Bosch Gmbh Robert Vorrichtung zur Halterung, Kraftstoffversorgung und elektrischen Kontaktierung von elektromagnetisch betätigbaren Kraftstoffeinspritzventilen
US4883252A (en) * 1989-01-23 1989-11-28 Colt Industries Inc. Electromagnet and valve assembly

Also Published As

Publication number Publication date
BR9001127A (pt) 1991-03-05
DE59001096D1 (de) 1993-05-06
DE3907765A1 (de) 1990-09-13
US5046469A (en) 1991-09-10
JPH02271069A (ja) 1990-11-06
EP0386446A1 (fr) 1990-09-12

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