FR2229868A1 - Plunger type fuel injector nozzle - has length of hole through nozzle end adjustable to vary spray angle - Google Patents

Plunger type fuel injector nozzle - has length of hole through nozzle end adjustable to vary spray angle

Info

Publication number
FR2229868A1
FR2229868A1 FR7416645A FR7416645A FR2229868A1 FR 2229868 A1 FR2229868 A1 FR 2229868A1 FR 7416645 A FR7416645 A FR 7416645A FR 7416645 A FR7416645 A FR 7416645A FR 2229868 A1 FR2229868 A1 FR 2229868A1
Authority
FR
France
Prior art keywords
length
cone
nozzle
hole
fuel injector
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Withdrawn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
FR7416645A
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.)
CAV Ltd
Original Assignee
CAV Ltd
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 CAV Ltd filed Critical CAV Ltd
Publication of FR2229868A1 publication Critical patent/FR2229868A1/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Withdrawn legal-status Critical Current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
    • 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

The injector consists of a cylindrical tube closed at one end with a cone. Inside the bore is a needle type valve which also has a conical end. The valve seats on to the conical end of the cylinder. The valve is maintained off its heat by a spring. There are a number of holes in the cone through which the fuel passes. The cone angles of the full jet depends largely on the length of the holes through which it passes. The length of the holes may easily be modified by machining a hollow on the outside surface of the cone (17). The depth of this hollow reduces the hole length. The thickness of the cylinder remains constant in other parts of the assembly, thus retaining the necessary strength for the material.
FR7416645A 1973-05-15 1974-05-14 Plunger type fuel injector nozzle - has length of hole through nozzle end adjustable to vary spray angle Withdrawn FR2229868A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2300673 1973-05-15

Publications (1)

Publication Number Publication Date
FR2229868A1 true FR2229868A1 (en) 1974-12-13

Family

ID=10188585

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7416645A Withdrawn FR2229868A1 (en) 1973-05-15 1974-05-14 Plunger type fuel injector nozzle - has length of hole through nozzle end adjustable to vary spray angle

Country Status (1)

Country Link
FR (1) FR2229868A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2442344A1 (en) * 1978-11-24 1980-06-20 Maschf Augsburg Nuernberg Ag MULTI-JET INJECTION NOZZLE FOR AIR COMPRESSION INTERNAL COMBUSTION ENGINES
US5163621A (en) * 1989-12-12 1992-11-17 Nippondenso Co., Ltd. Fuel injection valve having different fuel injection angles at different opening amounts
US5353992A (en) * 1993-08-30 1994-10-11 Chrysler Corporation Multi-hole injector nozzle tip with low hydraulic plume penetration and large cloud-forming properties
EP1508689A1 (en) * 1999-08-11 2005-02-23 Robert Bosch Gmbh Fuel injection valve
FR2877056A1 (en) * 2004-10-21 2006-04-28 Renault Sas Fuel injector for e.g. diesel engine, has grout holes pulverizing fuel sprays in cavity of combustion chamber, and two series of holes with respective permeabilities, where permeability one series is higher than permeability of other series
EP2711536A1 (en) * 2012-09-24 2014-03-26 Continental Automotive GmbH Nozzle module and injection valve

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2442344A1 (en) * 1978-11-24 1980-06-20 Maschf Augsburg Nuernberg Ag MULTI-JET INJECTION NOZZLE FOR AIR COMPRESSION INTERNAL COMBUSTION ENGINES
US5163621A (en) * 1989-12-12 1992-11-17 Nippondenso Co., Ltd. Fuel injection valve having different fuel injection angles at different opening amounts
US5353992A (en) * 1993-08-30 1994-10-11 Chrysler Corporation Multi-hole injector nozzle tip with low hydraulic plume penetration and large cloud-forming properties
EP1508689A1 (en) * 1999-08-11 2005-02-23 Robert Bosch Gmbh Fuel injection valve
FR2877056A1 (en) * 2004-10-21 2006-04-28 Renault Sas Fuel injector for e.g. diesel engine, has grout holes pulverizing fuel sprays in cavity of combustion chamber, and two series of holes with respective permeabilities, where permeability one series is higher than permeability of other series
EP2711536A1 (en) * 2012-09-24 2014-03-26 Continental Automotive GmbH Nozzle module and injection valve

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Legal Events

Date Code Title Description
RE Withdrawal of published application