GB1364877A - Fuel injectors for internal combustion engines - Google Patents

Fuel injectors for internal combustion engines

Info

Publication number
GB1364877A
GB1364877A GB5003171A GB5003171A GB1364877A GB 1364877 A GB1364877 A GB 1364877A GB 5003171 A GB5003171 A GB 5003171A GB 5003171 A GB5003171 A GB 5003171A GB 1364877 A GB1364877 A GB 1364877A
Authority
GB
United Kingdom
Prior art keywords
holes
fuel
engine
emitted
length
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
Application number
GB5003171A
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.)
FF SA
Original Assignee
FF SA
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 FF SA filed Critical FF SA
Publication of GB1364877A publication Critical patent/GB1364877A/en
Expired 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

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

1364877 Fuel injector nozzles F F S A 27 Oct 1971 [16 Nov 1970] 50031/71 Heading F1B I. C. engine fuel injector comprises a body 1 having holes 4, 4a, 5, 5a for discharging fuel into the combustion chamber, at least one of the holes being shorter in length than the remainder such that when the injector is installed in an engine, during operation of the engine at idling speed, the majority of the injected fuel is emitted by the hole which is shorter in length. The parts 6 and 6a of the nozzle may be machined away to reduce the length of the holes 4 and 4a. Alternatively, or in addition, the diameter of some of the holes may be greater than the diameter of the other holes. During idling and low-power operation of the engine the majority of the fuel is emitted through the holes 5 and 5a, in jets which do not reach the chamber walls, in order to minimize the production of pollutants in the exhaust gases. Under full load operation fuel is emitted from all the holes, the jets from the holes 4 and 4a striking the combustion chamber walls.
GB5003171A 1970-11-16 1971-10-27 Fuel injectors for internal combustion engines Expired GB1364877A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7041054A FR2114107A5 (en) 1970-11-16 1970-11-16

Publications (1)

Publication Number Publication Date
GB1364877A true GB1364877A (en) 1974-08-29

Family

ID=9064219

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5003171A Expired GB1364877A (en) 1970-11-16 1971-10-27 Fuel injectors for internal combustion engines

Country Status (3)

Country Link
DE (1) DE2136205A1 (en)
FR (1) FR2114107A5 (en)
GB (1) GB1364877A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2889258A3 (en) * 2005-07-29 2007-02-02 Renault Sas Fuel injector for motor vehicle, has hollow lower injection dome comprising outer surface with portion truncated around outlet orifice of injection channel such that thickness of dome is reduced in zone of channel

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2850879A1 (en) * 1978-11-24 1980-06-19 Maschf Augsburg Nuernberg Ag MULTI-HOLE INJECTION NOZZLE FOR AIR COMPRESSING ENGINES
AT389352B (en) * 1983-10-13 1989-11-27 Steyr Daimler Puch Ag FUEL INJECTION NOZZLE FOR INTERNAL COMBUSTION ENGINES WITH DIRECT FUEL INJECTION
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2889258A3 (en) * 2005-07-29 2007-02-02 Renault Sas Fuel injector for motor vehicle, has hollow lower injection dome comprising outer surface with portion truncated around outlet orifice of injection channel such that thickness of dome is reduced in zone of channel

Also Published As

Publication number Publication date
FR2114107A5 (en) 1972-06-30
DE2136205A1 (en) 1972-05-18

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee