EP0385398A3 - Perfected diesel engine electromagnetic fuel injector - Google Patents

Perfected diesel engine electromagnetic fuel injector Download PDF

Info

Publication number
EP0385398A3
EP0385398A3 EP19900103803 EP90103803A EP0385398A3 EP 0385398 A3 EP0385398 A3 EP 0385398A3 EP 19900103803 EP19900103803 EP 19900103803 EP 90103803 A EP90103803 A EP 90103803A EP 0385398 A3 EP0385398 A3 EP 0385398A3
Authority
EP
European Patent Office
Prior art keywords
perfected
fuel injector
injection chamber
diesel engine
plunger
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Withdrawn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
EP19900103803
Other languages
German (de)
French (fr)
Other versions
EP0385398A2 (en
Inventor
Vincenzo Damiani
Mario Ricco
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.)
Weber SRL
Original Assignee
Weber SRL
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 Weber SRL filed Critical Weber SRL
Publication of EP0385398A2 publication Critical patent/EP0385398A2/en
Publication of EP0385398A3 publication Critical patent/EP0385398A3/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Withdrawn legal-status Critical Current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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Abstract

A perfected fuel injector comprising an axially-sliding plunger (8) for controlling fuel passage between an injection chamber (13), supplied with fuel under pressure, and at least an injection orifice (9) formed in an injection nozzle (10); which injection chamber (13) is defined by a cylindrical surface (12) coaxial with the plunger (8). According to the present invention, the plunger (8) comprises a cylindrical portion (25) slightly smaller in diameter than the cylindrical surface (12), so as to define, downstream from the cylindrical portion (25), an injection chamber portion (26) of predetermined volume, and so as to define, between the cylindrical portion (25) and cylindrical surface (12), an annular channel (27) enabling fuel passage to the injection chamber portion (26) and along which a predetermined fall in fuel pressure is achieved.
EP19900103803 1989-02-28 1990-02-27 Perfected diesel engine electromagnetic fuel injector Withdrawn EP0385398A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT5290389U IT216950Z2 (en) 1989-02-28 1989-02-28 IMPROVEMENT IN THE INJECTION DEVICES OF THE ELECTROMAGNETIC FUEL FOR ENGINE DIESEL CYCLE
IT5290389U 1989-02-28

Publications (2)

Publication Number Publication Date
EP0385398A2 EP0385398A2 (en) 1990-09-05
EP0385398A3 true EP0385398A3 (en) 1991-06-19

Family

ID=11278382

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900103803 Withdrawn EP0385398A3 (en) 1989-02-28 1990-02-27 Perfected diesel engine electromagnetic fuel injector

Country Status (3)

Country Link
EP (1) EP0385398A3 (en)
JP (1) JPH03965A (en)
IT (1) IT216950Z2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT400418B (en) * 1993-11-05 1995-12-27 Philips Electronics Nv SHAVER WITH AN ADJUSTABLE FILM-LIKE TOP KNIFE
DE4437927C2 (en) * 1994-10-24 1996-09-12 Bosch Gmbh Robert Solenoid valve-controlled fuel injection device with an injection nozzle for fuel injection into the combustion chamber of a diesel internal combustion engine
WO1997008452A1 (en) * 1995-08-29 1997-03-06 Isuzu Motors Limited Storage type fuel injection device
JP3823391B2 (en) 1996-08-31 2006-09-20 いすゞ自動車株式会社 Engine fuel injector
JP3707210B2 (en) * 1997-07-22 2005-10-19 いすゞ自動車株式会社 Fuel injection control device
JP3704957B2 (en) * 1998-07-06 2005-10-12 いすゞ自動車株式会社 Injector
DE19936668A1 (en) * 1999-08-04 2001-02-22 Bosch Gmbh Robert Common rail injector
JP4940033B2 (en) 2007-06-29 2012-05-30 パナソニック株式会社 Computer system, computer system control method, and mobile phone

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1132403A (en) * 1966-06-21 1968-10-30 Robert Huber Improvements in and relating to an electromagnetic fuel-injection valve
DE3227742A1 (en) * 1981-07-31 1983-05-11 Steyr-Daimler-Puch AG, 1010 Wien FUEL INJECTION SYSTEM FOR INTERNAL COMBUSTION ENGINES
US4603671A (en) * 1983-08-17 1986-08-05 Nippon Soken, Inc. Fuel injector for an internal combustion engine
GB2185530A (en) * 1986-01-22 1987-07-22 Dereco Dieselmotoren Forschung Fuel injection system for an internal combustion engine
DE3629646A1 (en) * 1986-08-30 1988-03-03 Bosch Gmbh Robert ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE
DE3735526A1 (en) * 1986-10-24 1988-05-05 Nippon Denso Co Solenoid fuel injection valve for an internal combustion engine
EP0228578B1 (en) * 1985-12-02 1991-09-25 Marco Alfredo Ganser Fuel injection device for internal combustion engines

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1132403A (en) * 1966-06-21 1968-10-30 Robert Huber Improvements in and relating to an electromagnetic fuel-injection valve
DE3227742A1 (en) * 1981-07-31 1983-05-11 Steyr-Daimler-Puch AG, 1010 Wien FUEL INJECTION SYSTEM FOR INTERNAL COMBUSTION ENGINES
US4603671A (en) * 1983-08-17 1986-08-05 Nippon Soken, Inc. Fuel injector for an internal combustion engine
EP0228578B1 (en) * 1985-12-02 1991-09-25 Marco Alfredo Ganser Fuel injection device for internal combustion engines
GB2185530A (en) * 1986-01-22 1987-07-22 Dereco Dieselmotoren Forschung Fuel injection system for an internal combustion engine
DE3629646A1 (en) * 1986-08-30 1988-03-03 Bosch Gmbh Robert ELECTROMAGNETICALLY ACTUABLE FUEL INJECTION VALVE
DE3735526A1 (en) * 1986-10-24 1988-05-05 Nippon Denso Co Solenoid fuel injection valve for an internal combustion engine

Also Published As

Publication number Publication date
EP0385398A2 (en) 1990-09-05
IT8952903V0 (en) 1989-02-28
JPH03965A (en) 1991-01-07
IT216950Z2 (en) 1991-10-11

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