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FR2438172A1 - FUEL INJECTION NOZZLE - Google Patents

FUEL INJECTION NOZZLE

Info

Publication number
FR2438172A1
FR2438172A1 FR7920622A FR7920622A FR2438172A1 FR 2438172 A1 FR2438172 A1 FR 2438172A1 FR 7920622 A FR7920622 A FR 7920622A FR 7920622 A FR7920622 A FR 7920622A FR 2438172 A1 FR2438172 A1 FR 2438172A1
Authority
FR
France
Prior art keywords
fuel injection
injection nozzle
arc
minutes
nozzle
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.)
Withdrawn
Application number
FR7920622A
Other languages
French (fr)
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 FR2438172A1 publication Critical patent/FR2438172A1/en
Withdrawn legal-status Critical Current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
    • 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
    • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for

Landscapes

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

Abstract

A.BUSE D'INJECTION DE CARBURANT. B.BUSE D'INJECTION DE CARBURANT POUR MOTEUR A COMBUSTION INTERNE AVEC UN POINTEAU DE SOUPAPE COMMANDE HYDRAULIQUEMENT, S'OUVRANT EN SENS INVERSE DE L'ECOULEMENT DU CARBURANT, ET AVEC DES SURFACES CONIQUES DANS LE CORPS DE BUSE ET CONTRE LE POINTEAU DE SOUPAPE SE RACCORDANT EN AVAL AU SIEGE DE SOUPAPE, LES ANGLES AU SOMMET DE CES SURFACES CONIQUES PRESENTANT DES DIFFERENCES, BUSE CARACTERISEE EN CE QUE CES DIFFERENCES (A-B) SONT D'AU MOINS 15MINUTES D'ARC ET D'AU PLUS 50MINUTES D'ARC, MAIS SE SITUENT NOTAMMENT ENTRE 15 ET 30MINUTES D'ARC. C.L'INVENTION S'APPLIQUE NOTAMMENT AUX MOTEURS D'AUTOMOBILES.A. FUEL INJECTION NOZZLE. B. FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES WITH A HYDRAULICALLY CONTROLLED VALVE NEEDLE, OPENS IN REVERSE DIRECTION OF FUEL FLOW, AND WITH TAPERED SURFACES IN THE NOZZLE BODY AND AGAINST THE VALVE NEEDLE CONNECTING DOWNSTREAM TO THE VALVE SEAT, THE ANGLES AT THE TOP OF THESE CONICAL SURFACES SHOWING DIFFERENCES, NOZZLE CHARACTERIZED IN THAT THESE DIFFERENCES (AB) ARE AT LEAST 15 MINUTES ARC AND NOT MORE THAN 50 MINUTES ARC, BUT ARE ESPECIALLY LOCATED BETWEEN 15 AND 30 MINUTES FROM ARC. C. THE INVENTION APPLIES IN PARTICULAR TO AUTOMOBILE ENGINES.

FR7920622A 1978-10-03 1979-08-13 FUEL INJECTION NOZZLE Withdrawn FR2438172A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782843000 DE2843000A1 (en) 1978-10-03 1978-10-03 FUEL INJECTION NOZZLE

Publications (1)

Publication Number Publication Date
FR2438172A1 true FR2438172A1 (en) 1980-04-30

Family

ID=6051209

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7920622A Withdrawn FR2438172A1 (en) 1978-10-03 1979-08-13 FUEL INJECTION NOZZLE

Country Status (4)

Country Link
JP (1) JPS5549572A (en)
DE (1) DE2843000A1 (en)
FR (1) FR2438172A1 (en)
GB (1) GB2032520B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989003935A1 (en) * 1987-10-30 1989-05-05 Nauchno-Proizvodstvennoe Obiedinenie Po Toplivnoi Pulverizer of diesel nozzle
BE1007449A5 (en) * 1993-09-08 1995-07-04 Moulliard Charles Projector and its uses
WO1997020659A1 (en) * 1995-12-05 1997-06-12 Robert Bosch Gmbh Valve obturator and method and device for producing the sealing surface on such obturators

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR7909045A (en) * 1979-11-30 1981-10-20 Caterpillar Tractor Co FUEL INJECTION NOZZLE
US4639568A (en) * 1984-07-13 1987-01-27 Ex-Cell-O Corporation Apparatus and method for finishing fuel injector spray tips using EDM
GB2198785A (en) * 1986-12-01 1988-06-22 Ford Motor Co I.C. engine fuel injector
JP3156554B2 (en) * 1995-07-24 2001-04-16 トヨタ自動車株式会社 Fuel injection valve
USD421320S (en) 1998-12-22 2000-02-29 Warner-Lambert Company Razor handle
DE102010032050B4 (en) * 2010-07-23 2017-12-21 Continental Automotive Gmbh Nozzle body with blind hole
JP2016169739A (en) * 2016-05-23 2016-09-23 株式会社デンソー Fuel injection device
DE102019103511A1 (en) * 2019-02-12 2020-08-13 Liebherr-Components Deggendorf Gmbh Nozzle for a fuel injector

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1082680A (en) * 1952-04-12 1954-12-31 Bosch Gmbh Robert Fuel injector
FR1489290A (en) * 1965-08-03 1967-07-21 Meccaniche Flii Bosio S N C Co Fuel injector for internal combustion compression ignition engines
US3836080A (en) * 1973-09-10 1974-09-17 Ambac Ind Fuel injection nozzle
US3980237A (en) * 1975-11-17 1976-09-14 Allis-Chalmers Corporation Differential valve in fuel injection nozzle
US4106702A (en) * 1977-04-19 1978-08-15 Caterpillar Tractor Co. Fuel injection nozzle tip with low volume tapered sac

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1082680A (en) * 1952-04-12 1954-12-31 Bosch Gmbh Robert Fuel injector
FR1489290A (en) * 1965-08-03 1967-07-21 Meccaniche Flii Bosio S N C Co Fuel injector for internal combustion compression ignition engines
US3836080A (en) * 1973-09-10 1974-09-17 Ambac Ind Fuel injection nozzle
US3980237A (en) * 1975-11-17 1976-09-14 Allis-Chalmers Corporation Differential valve in fuel injection nozzle
US4106702A (en) * 1977-04-19 1978-08-15 Caterpillar Tractor Co. Fuel injection nozzle tip with low volume tapered sac

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989003935A1 (en) * 1987-10-30 1989-05-05 Nauchno-Proizvodstvennoe Obiedinenie Po Toplivnoi Pulverizer of diesel nozzle
BE1007449A5 (en) * 1993-09-08 1995-07-04 Moulliard Charles Projector and its uses
WO1997020659A1 (en) * 1995-12-05 1997-06-12 Robert Bosch Gmbh Valve obturator and method and device for producing the sealing surface on such obturators

Also Published As

Publication number Publication date
DE2843000A1 (en) 1980-04-24
JPS5549572A (en) 1980-04-10
GB2032520A (en) 1980-05-08
GB2032520B (en) 1983-05-18

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Legal Events

Date Code Title Description
ST Notification of lapse