FR2383323A1 - FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES - Google Patents

FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES

Info

Publication number
FR2383323A1
FR2383323A1 FR7806711A FR7806711A FR2383323A1 FR 2383323 A1 FR2383323 A1 FR 2383323A1 FR 7806711 A FR7806711 A FR 7806711A FR 7806711 A FR7806711 A FR 7806711A FR 2383323 A1 FR2383323 A1 FR 2383323A1
Authority
FR
France
Prior art keywords
internal combustion
axis
blind hole
fuel injection
injection 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.)
Granted
Application number
FR7806711A
Other languages
French (fr)
Other versions
FR2383323B1 (en
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 FR2383323A1 publication Critical patent/FR2383323A1/en
Application granted granted Critical
Publication of FR2383323B1 publication Critical patent/FR2383323B1/fr
Granted 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
    • F02M61/1806—Injection 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
    • F02M61/182—Discharge orifices being situated in different transversal planes with respect to valve member direction of movement
    • 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
    • F02M61/1806—Injection 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
    • F02M61/1826—Discharge orifices having different sizes

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. L'invention concerne une buse d'injection de carburant comportant un corps de buse recevant un pointeau de soupape délimitant une chambre de pression et un trou borgne avec des orifices d'injection b. Cette buse est caractérisée en ce que les axes des orifices d'injection qui font un grand angle avec l'axe du trou borgne coupent cet axe en un point plus proche du fond de ce trou borgne que le point d'intersection avec l'axe du trou borgne des orifices d'injection qui font un petit angle avec cet axe c. L'invention est applicable aux moteurs à combustion interne à injection.at. The invention relates to a fuel injection nozzle comprising a nozzle body receiving a valve needle defining a pressure chamber and a blind hole with injection orifices b. This nozzle is characterized in that the axes of the injection orifices which form a large angle with the axis of the blind hole intersect this axis at a point closer to the bottom of this blind hole than the point of intersection with the axis the blind hole of the injection orifices which form a small angle with this axis c. The invention is applicable to internal combustion injection engines.

FR7806711A 1977-03-08 1978-03-08 FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES Granted FR2383323A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772710004 DE2710004A1 (en) 1977-03-08 1977-03-08 FUEL INJECTOR

Publications (2)

Publication Number Publication Date
FR2383323A1 true FR2383323A1 (en) 1978-10-06
FR2383323B1 FR2383323B1 (en) 1984-06-29

Family

ID=6003050

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7806711A Granted FR2383323A1 (en) 1977-03-08 1978-03-08 FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES

Country Status (6)

Country Link
JP (1) JPS53110719A (en)
DE (1) DE2710004A1 (en)
FR (1) FR2383323A1 (en)
GB (1) GB1598721A (en)
IT (1) IT1093124B (en)
SE (1) SE417630B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2465092A1 (en) * 1979-09-08 1981-03-20 Lucas Industries Ltd IC engine fuel injection nozzle tip - has orifice duct outlets asymmetrically and entries symmetrically arranged relative to injector centre line

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2819702B2 (en) * 1989-12-12 1998-11-05 株式会社デンソー Fuel injection valve
US20110030635A1 (en) * 2009-08-04 2011-02-10 International Engine Intellectual Property Company, Llc Fuel injector nozzle for reduced coking
JP2015124648A (en) * 2013-12-26 2015-07-06 ボッシュ株式会社 Nozzle, method of manufacturing the same, and fuel injection valve

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB400836A (en) * 1932-03-19 1933-11-02 Schweizerische Lokomotiv Improvements in or relating to fuel nozzles for internal combustion engines
GB1092263A (en) * 1964-07-06 1967-11-22 Hailwood & Ackroyd Ltd Improvements in or relating to injection nozzles for internal combustion engines and methods of making same
FR2006027A1 (en) * 1968-04-11 1969-12-19 Sulzer Ag
FR2025569A1 (en) * 1968-12-06 1970-09-11 Western Electric Co

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1576533A1 (en) * 1967-11-09 1970-03-19 Daimler Benz Ag Injection valve for internal combustion engines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB400836A (en) * 1932-03-19 1933-11-02 Schweizerische Lokomotiv Improvements in or relating to fuel nozzles for internal combustion engines
GB1092263A (en) * 1964-07-06 1967-11-22 Hailwood & Ackroyd Ltd Improvements in or relating to injection nozzles for internal combustion engines and methods of making same
FR2006027A1 (en) * 1968-04-11 1969-12-19 Sulzer Ag
FR2025569A1 (en) * 1968-12-06 1970-09-11 Western Electric Co

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2465092A1 (en) * 1979-09-08 1981-03-20 Lucas Industries Ltd IC engine fuel injection nozzle tip - has orifice duct outlets asymmetrically and entries symmetrically arranged relative to injector centre line

Also Published As

Publication number Publication date
IT7820654A0 (en) 1978-02-28
IT1093124B (en) 1985-07-19
FR2383323B1 (en) 1984-06-29
JPS53110719A (en) 1978-09-27
DE2710004A1 (en) 1978-09-14
DE2710004C2 (en) 1988-12-22
SE7802574L (en) 1978-09-09
SE417630B (en) 1981-03-30
GB1598721A (en) 1981-09-23

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Legal Events

Date Code Title Description
ST Notification of lapse