FR2358560A1 - Fuel injection system for IC engine - has pressure intensifier piston controlled by electromagnetic valve to avoid pressure hammer - Google Patents

Fuel injection system for IC engine - has pressure intensifier piston controlled by electromagnetic valve to avoid pressure hammer

Info

Publication number
FR2358560A1
FR2358560A1 FR7621333A FR7621333A FR2358560A1 FR 2358560 A1 FR2358560 A1 FR 2358560A1 FR 7621333 A FR7621333 A FR 7621333A FR 7621333 A FR7621333 A FR 7621333A FR 2358560 A1 FR2358560 A1 FR 2358560A1
Authority
FR
France
Prior art keywords
fuel
pressure
injection system
fuel injection
engine
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
FR7621333A
Other languages
French (fr)
Other versions
FR2358560B1 (en
Inventor
Jean-Pierre Jourde
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.)
ABG Semca SA
Original Assignee
ABG Semca 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 ABG Semca SA filed Critical ABG Semca SA
Priority to FR7621333A priority Critical patent/FR2358560A1/en
Publication of FR2358560A1 publication Critical patent/FR2358560A1/en
Application granted granted Critical
Publication of FR2358560B1 publication Critical patent/FR2358560B1/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
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/105—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive hydraulic drive

Abstract

The fuel injection system for an internal combustion engine has a pump (1) supplying fuel through a three-way electro-magnetic valve (4) to a pressure intensifier (10). At the beginning of the injection cycle the line (4a) is connected to the line (4b) so that fuel flows into the chamber (15) and lifts the piston (11). At the same time fuel also flows through non-return valves (3, 6) and lifts the piston (9) to its upper position. A transducer (17) then transmits a signal which opens the line (4c) of the electrol-magnetic valve (4) so that fuel flows into the upper part (18) of the cylinder (10) forcing the pistons (11, 9) downwards. This action intensifies the pressure of the fuel flowing to the injector (12) in the ratio of the areas of the pistons (9, 11) but avoid pressure hammer in the pipe (13).
FR7621333A 1976-07-12 1976-07-12 Fuel injection system for IC engine - has pressure intensifier piston controlled by electromagnetic valve to avoid pressure hammer Granted FR2358560A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7621333A FR2358560A1 (en) 1976-07-12 1976-07-12 Fuel injection system for IC engine - has pressure intensifier piston controlled by electromagnetic valve to avoid pressure hammer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7621333A FR2358560A1 (en) 1976-07-12 1976-07-12 Fuel injection system for IC engine - has pressure intensifier piston controlled by electromagnetic valve to avoid pressure hammer

Publications (2)

Publication Number Publication Date
FR2358560A1 true FR2358560A1 (en) 1978-02-10
FR2358560B1 FR2358560B1 (en) 1983-04-15

Family

ID=9175619

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7621333A Granted FR2358560A1 (en) 1976-07-12 1976-07-12 Fuel injection system for IC engine - has pressure intensifier piston controlled by electromagnetic valve to avoid pressure hammer

Country Status (1)

Country Link
FR (1) FR2358560A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414639A1 (en) * 1978-01-16 1979-08-10 Bendix Corp FUEL INJECTOR
FR2480356A1 (en) * 1980-04-14 1981-10-16 Lucas Industries Ltd Fuel injection pump with improved fuel metering - uses same solenoid valve for varying time-point of fuel release

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414639A1 (en) * 1978-01-16 1979-08-10 Bendix Corp FUEL INJECTOR
FR2480356A1 (en) * 1980-04-14 1981-10-16 Lucas Industries Ltd Fuel injection pump with improved fuel metering - uses same solenoid valve for varying time-point of fuel release

Also Published As

Publication number Publication date
FR2358560B1 (en) 1983-04-15

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse
ST Notification of lapse
ST Notification of lapse