EP0154209A1 - Soupape d'injection pour l'injection dans le conduit d'admission des moteurs à combustion - Google Patents

Soupape d'injection pour l'injection dans le conduit d'admission des moteurs à combustion Download PDF

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Publication number
EP0154209A1
EP0154209A1 EP85101463A EP85101463A EP0154209A1 EP 0154209 A1 EP0154209 A1 EP 0154209A1 EP 85101463 A EP85101463 A EP 85101463A EP 85101463 A EP85101463 A EP 85101463A EP 0154209 A1 EP0154209 A1 EP 0154209A1
Authority
EP
European Patent Office
Prior art keywords
mouthpiece
injection valve
ring
protective cap
injection
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
EP85101463A
Other languages
German (de)
English (en)
Other versions
EP0154209B1 (fr
Inventor
Jurij Gartner
Wolfgang Dipl.-Ing. Kaindl
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of EP0154209A1 publication Critical patent/EP0154209A1/fr
Application granted granted Critical
Publication of EP0154209B1 publication Critical patent/EP0154209B1/fr
Expired 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

Definitions

  • the invention relates to an injection valve of the type according to the preamble of the main claim.
  • the 0-ring arranged on the mouthpiece of the injection valve is pressed radially when inserted into the receiving bore in the intake manifold wall.
  • the receiving bore has a chamfer on the insertion side, by means of which the pressing of the 0-ring is initiated when it is inserted into the receiving bore.
  • this chamfer is generally relatively low in the area around the receiving bore in the insertion direction and is formed at a relatively large cone angle. At the transition from the receiving bore into the chamfer, this results in a relatively sharp edge, which can lead to damage to the O-ring in the case of a mouthpiece of the injection nozzle which is positioned eccentrically to the receiving bore.
  • each injection valve can be moved to a certain extent relative to the fuel rail, so that when the injection valves are installed at the same time, eccentric positions of some injection valves can be expected in relation to their receiving bores.
  • the invention has for its object to show a configuration for an injection valve of the type described above, by which damage to the sealing ring is avoided when the injection valve is inserted into the receiving bore of the suction line.
  • An injection valve 1 for a mixture-compressing internal combustion engine (not shown) carries an O-ring 3 on a mouthpiece 2.
  • the 0-ring 3 is arranged on the mouthpiece 2 between a shoulder 4 of the injection valve 1 and a protective cap 5 in the free end region of the mouthpiece 2.
  • the injection valve 1 is inserted with its mouthpiece 2 into a wall opening 7 in the intake manifold 6, the position of the injection valve 1 essentially being achieved by the pressed O-ring 3 between the wall opening 7 and the mouthpiece 2 becomes.
  • the wall opening or receiving bore 7 has a. Bevel 8 on the insertion side.
  • a centering device 9 on the protective cap 5 ensures that the injection valve 1 is centered in the receiving bore 7 at the beginning of the insertion process and is guided centrally during the further insertion until the 0-ring 3 rests on the chamfer 8.
  • the centering device 9 comprises on the protective cap 5 made of plastic tongues 10, which are elastically flexible transversely to the insertion direction arrow "A" of the injection valve 1 and have an outer contour lying in the outer surface of a hemisphere. Furthermore, the edge regions of the non-deformed tongues 10 lie on a diameter which is at least the outer diameter of the unpressed 0-ring 3 corresponds. This configuration of the centering device 9 avoids an eccentric position of the mouthpiece 2 of the injection valve 1 when it is inserted and thus prevents possible damage to the rubber-elastic 0-ring 3 on the machining edges 11 and 12.
  • a centering device 13 comprises webs 15 arranged on the outer circumference of a protective cap 14, which webs have an outer contour lying in the lateral surface of a cone. With increasing diameter, these webs 15 each change from a rectangular cross section to a crescent cross section.
  • the protective cap 14 made of elastic material, the free ends of the crescent-shaped cross sections form elastically flexible lips 16 in the circumferential direction.
  • the undeformed lips 16 on the webs 15 are inscribed with a diameter which corresponds to the outer diameter of the unpressed O-ring 3.
  • the webs 15 with their ramps 17 lying on the lateral surface of a relatively slender cone substantially facilitate the threading of the injection valve 1 into the receiving bore 7, which additionally improves the self-centering of the injection valve 1.
  • the lips 16 rest on the webs 15 due to the crescent-shaped cross section on the wall of the receiving bore 7.
  • the degree of flexibility of the lips 16 and thus their flexibility transverse to the direction of insertion arrow "A" can be determined.
  • With a coordinated crescent-shaped cross-section and the material of the webs 15 and the protective cap 14 secure centering can be achieved when the injection valve 1 is inserted into the receiving bore 7 with the least possible lateral offset. The smaller the lateral offset permitted by the centering device 13 through the lips 16, the lower the risk of one

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
EP85101463A 1984-02-23 1985-02-12 Soupape d'injection pour l'injection dans le conduit d'admission des moteurs à combustion Expired EP0154209B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3406487 1984-02-23
DE19843406487 DE3406487A1 (de) 1984-02-23 1984-02-23 Einspritzventil fuer gemischverdichtende brennkraftmaschinen, insbesondere fuer einzelsaugrohr-einspritzung

Publications (2)

Publication Number Publication Date
EP0154209A1 true EP0154209A1 (fr) 1985-09-11
EP0154209B1 EP0154209B1 (fr) 1987-04-29

Family

ID=6228555

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85101463A Expired EP0154209B1 (fr) 1984-02-23 1985-02-12 Soupape d'injection pour l'injection dans le conduit d'admission des moteurs à combustion

Country Status (4)

Country Link
US (1) US4829965A (fr)
EP (1) EP0154209B1 (fr)
DE (2) DE3406487A1 (fr)
WO (1) WO1986005845A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0189863A2 (fr) * 1985-01-29 1986-08-06 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Soupape d'injection pour moteurs à combustion interne à compression du mélange
WO1986005845A1 (fr) * 1984-02-23 1986-10-09 Bayerische Motoren Werke Aktiengesellschaft Dispositif de montage d'une soupape injectrice pour moteurs a combustion interne a compression de melange
FR2598465A1 (fr) * 1986-05-09 1987-11-13 Bosch Gmbh Robert Injecteur de carburant pour moteurs a combustion interne a dispositif de prechauffage dont l'anneau calorifuge protege le corps d'injecteur.
DE10065225B4 (de) * 2000-12-27 2005-09-22 Fränkische Rohrwerke Gebr. Kirchner GmbH + Co. KG Verbindungsanordnung
EP3198133B1 (fr) * 2014-09-22 2020-01-08 Volkswagen Aktiengesellschaft Tuyau d'aspiration pour moteur à combustion interne

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3919231C2 (de) * 1989-06-13 1997-03-06 Bosch Gmbh Robert Kraftstoffeinspritzeinrichtung für Brennkraftmaschinen
GB8926363D0 (en) * 1989-11-22 1990-01-10 Lucas Ind Plc Fuel injection system
DE19621221A1 (de) * 1996-05-25 1997-11-27 Bosch Gmbh Robert Aggregat und Schnappvorrichtung für ein Aggregat
DE19908154B4 (de) * 1999-02-25 2006-11-09 Schaeffler Kg Spannelement
DE50110145D1 (de) * 2001-01-12 2006-07-27 Ford Global Tech Inc Geraeuschreduzierende Anordnung von Unterlegscheiben unter einer Einspritzduese
DE10108467A1 (de) * 2001-02-22 2002-09-05 Bosch Gmbh Robert Befestigungsvorrichtung
DE10109408A1 (de) * 2001-02-28 2002-09-05 Bosch Gmbh Robert Befestigungsvorrichtung
DE10338715B4 (de) * 2003-08-22 2014-07-17 Robert Bosch Gmbh Ausgleichselement für ein Brennstoffeinspritzventil
DE102005006818A1 (de) * 2005-02-15 2006-08-17 Volkswagen Mechatronic Gmbh & Co. Kg Dichtungseinrichtung für einen Kraftstoffinjektor sowie Verfahren zum Abdichten
JP4592012B2 (ja) * 2005-06-03 2010-12-01 株式会社小糸製作所 車輌用灯具の洗浄装置及び車輌用灯具の洗浄装置のノズルカバー
WO2017027741A1 (fr) * 2015-08-12 2017-02-16 Cummins Inc. Écran de combustion de buse et élément d'étanchéité à capacités de transfert de chaleur améliorées
DE102015223605A1 (de) * 2015-11-27 2017-06-01 Robert Bosch Gmbh Injektoranordnung mit Thermoschutzhülse

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2208646A1 (de) * 1972-02-24 1973-08-30 Bosch Gmbh Robert Gemischverdichtende brennkraftmaschine
GB2022727A (en) * 1978-06-03 1979-12-19 Bayerische Motoren Werke Ag Fuel injection nozzle fastening

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2149817B2 (de) * 1971-10-06 1975-08-21 Daimler-Benz Ag, 7000 Stuttgart Anordnung eines Kraftstoffeinspritzventils zur elektronisch gesteuerten Benzineinspritzung in den Ansaugkanal einer Brennkraftmaschine
DE7232185U (de) * 1972-08-31 1975-06-12 Porsche F Ag Vorrichtung zur Halterung einer Brennstoffeinspritzdüse
DE3000061C2 (de) * 1980-01-03 1993-10-14 Bosch Gmbh Robert Kraftstoffeinspritzdüse für Brennkraftmaschinen
DE3406487A1 (de) * 1984-02-23 1985-08-29 Bayerische Motoren Werke AG, 8000 München Einspritzventil fuer gemischverdichtende brennkraftmaschinen, insbesondere fuer einzelsaugrohr-einspritzung
DE3502919A1 (de) * 1985-01-29 1986-07-31 Bayerische Motoren Werke AG, 8000 München Einspritzventil fuer gemischverdichtende brennkraftmaschinen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2208646A1 (de) * 1972-02-24 1973-08-30 Bosch Gmbh Robert Gemischverdichtende brennkraftmaschine
GB2022727A (en) * 1978-06-03 1979-12-19 Bayerische Motoren Werke Ag Fuel injection nozzle fastening

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986005845A1 (fr) * 1984-02-23 1986-10-09 Bayerische Motoren Werke Aktiengesellschaft Dispositif de montage d'une soupape injectrice pour moteurs a combustion interne a compression de melange
EP0189863A2 (fr) * 1985-01-29 1986-08-06 Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 Soupape d'injection pour moteurs à combustion interne à compression du mélange
EP0189863A3 (en) * 1985-01-29 1988-04-27 Bayerische Motoren Werke Aktiengesellschaft Injection valve for mixture compression internal combustion engines
FR2598465A1 (fr) * 1986-05-09 1987-11-13 Bosch Gmbh Robert Injecteur de carburant pour moteurs a combustion interne a dispositif de prechauffage dont l'anneau calorifuge protege le corps d'injecteur.
DE10065225B4 (de) * 2000-12-27 2005-09-22 Fränkische Rohrwerke Gebr. Kirchner GmbH + Co. KG Verbindungsanordnung
EP3198133B1 (fr) * 2014-09-22 2020-01-08 Volkswagen Aktiengesellschaft Tuyau d'aspiration pour moteur à combustion interne

Also Published As

Publication number Publication date
US4829965A (en) 1989-05-16
DE3560150D1 (en) 1987-06-04
DE3406487A1 (de) 1985-08-29
EP0154209B1 (fr) 1987-04-29
WO1986005845A1 (fr) 1986-10-09

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