JPS54121334A - Fuel injector - Google Patents

Fuel injector

Info

Publication number
JPS54121334A
JPS54121334A JP2958678A JP2958678A JPS54121334A JP S54121334 A JPS54121334 A JP S54121334A JP 2958678 A JP2958678 A JP 2958678A JP 2958678 A JP2958678 A JP 2958678A JP S54121334 A JPS54121334 A JP S54121334A
Authority
JP
Japan
Prior art keywords
valve
fuel
chamber
spool
port
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
JP2958678A
Other languages
Japanese (ja)
Other versions
JPS6047471B2 (en
Inventor
Miya Ishii
Hidetoshi Doshita
Yoshihisa Yamamoto
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.)
Denso Corp
Original Assignee
NipponDenso Co 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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP2958678A priority Critical patent/JPS6047471B2/en
Publication of JPS54121334A publication Critical patent/JPS54121334A/en
Publication of JPS6047471B2 publication Critical patent/JPS6047471B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Fuel-Injection Apparatus (AREA)

Abstract

PURPOSE: To obtain the same function as a system empolying a two-position three- port valve and a two-position two-port valve, by providing a stop valve between a pressure source and a pressure chamber of a spool valve and installing a valve element which is actuated together with a spool between the pressure chamber and a low-pressure section.
CONSTITUTION: When two ports of a solenoid valve 10 are put in a connected state, fuel of the pressure source 14 flows into the pressure chamber 13 through a passage 40 and the spool 3 is displaced rightward against a spring 3a. Thus, a port 12 is closed, a port 11 is opened, a piston 6 is pushed downward and fuel is injected from a fuel chamber 15 into the combustion chamber of an engine E through a nozzle 8. The spool is returned leftward by closing the solenoid valve 10. When another aolenoid valve 9 is opened for a predetermined time, fuel flows into thefuel chamber 15 to push up a plunger 9 and the piston 6. The spool 3 is moved rightward by opening the solenoid valve again, so that the fuel of the fuel chamber 15 is injected into the combustion chamber.
COPYRIGHT: (C)1979,JPO&Japio
JP2958678A 1978-03-14 1978-03-14 fuel injector Expired JPS6047471B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2958678A JPS6047471B2 (en) 1978-03-14 1978-03-14 fuel injector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2958678A JPS6047471B2 (en) 1978-03-14 1978-03-14 fuel injector

Publications (2)

Publication Number Publication Date
JPS54121334A true JPS54121334A (en) 1979-09-20
JPS6047471B2 JPS6047471B2 (en) 1985-10-22

Family

ID=12280170

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2958678A Expired JPS6047471B2 (en) 1978-03-14 1978-03-14 fuel injector

Country Status (1)

Country Link
JP (1) JPS6047471B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57173553A (en) * 1981-04-20 1982-10-25 Nippon Denso Co Ltd Fuel injection device for internal combustion engine
JPS5820959A (en) * 1981-07-30 1983-02-07 Diesel Kiki Co Ltd Valve device for controlling supply of pressurized fuel to pressure booster for fuel injection device
JPS58117353A (en) * 1981-12-30 1983-07-12 Isuzu Motors Ltd Injection rate control device of pressure increasing plunger type fuel injection device
JPS59105060U (en) * 1982-12-30 1984-07-14 いすゞ自動車株式会社 Servo valve for pressure booster plunger type fuel injection device
US4480619A (en) * 1982-06-08 1984-11-06 Nippon Soken, Inc. Flow control device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57173553A (en) * 1981-04-20 1982-10-25 Nippon Denso Co Ltd Fuel injection device for internal combustion engine
JPS5820959A (en) * 1981-07-30 1983-02-07 Diesel Kiki Co Ltd Valve device for controlling supply of pressurized fuel to pressure booster for fuel injection device
JPH0223708B2 (en) * 1981-07-30 1990-05-25 Diesel Kiki Co
JPS58117353A (en) * 1981-12-30 1983-07-12 Isuzu Motors Ltd Injection rate control device of pressure increasing plunger type fuel injection device
JPH0359270B2 (en) * 1981-12-30 1991-09-10 Isuzu Motors Ltd
US4480619A (en) * 1982-06-08 1984-11-06 Nippon Soken, Inc. Flow control device
JPS59105060U (en) * 1982-12-30 1984-07-14 いすゞ自動車株式会社 Servo valve for pressure booster plunger type fuel injection device

Also Published As

Publication number Publication date
JPS6047471B2 (en) 1985-10-22

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