JPS5779256A - Fuel injection valve - Google Patents

Fuel injection valve

Info

Publication number
JPS5779256A
JPS5779256A JP15541080A JP15541080A JPS5779256A JP S5779256 A JPS5779256 A JP S5779256A JP 15541080 A JP15541080 A JP 15541080A JP 15541080 A JP15541080 A JP 15541080A JP S5779256 A JPS5779256 A JP S5779256A
Authority
JP
Japan
Prior art keywords
needle valve
pressure
fuel
piston
opening
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
JP15541080A
Other languages
Japanese (ja)
Other versions
JPS6239267B2 (en
Inventor
Kazuo Uchida
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.)
Bosch Corp
Original Assignee
Diesel Kiki 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 Diesel Kiki Co Ltd filed Critical Diesel Kiki Co Ltd
Priority to JP15541080A priority Critical patent/JPS5779256A/en
Publication of JPS5779256A publication Critical patent/JPS5779256A/en
Publication of JPS6239267B2 publication Critical patent/JPS6239267B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To regulate a quantity and timing of a fuel injection by applying the same pressure of a fuel to the upper and lower ends of a needle valve inside a fuel injection valve and opening or closing the needle valve with an electronically controlled working oil.
CONSTITUTION: A fuel supply passage 8 opening to an end injection nozzle 4 is formed inside a main body 1. A needle valve 5 is disposed inside it, opening or closing the injection nozzle 4. Above the needle valve 5, a control piston 10 and a pressure piston 16 are integrated, reciprocating in a primary cylinder casing 9 and a secondary cylinder casing 15, respectively. An upper chamber 16a on the piston 16 is communicated with the supply passage 8 via a branch passage 17, generating a fuel pressure to be equivalently applied onto the upper and lower ends of the needle valve 5. A working oil pressure supply device consisting of a switch valve 31, an electronic controller 37 and other elements produces an oil pressure dependently on operation conditions and applies it into the lower chamber 9a of the piston 10 via supply passages 11a, 11 so as to open or close needle valve 5 under said pressure.
COPYRIGHT: (C)1982,JPO&Japio
JP15541080A 1980-11-04 1980-11-04 Fuel injection valve Granted JPS5779256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15541080A JPS5779256A (en) 1980-11-04 1980-11-04 Fuel injection valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15541080A JPS5779256A (en) 1980-11-04 1980-11-04 Fuel injection valve

Publications (2)

Publication Number Publication Date
JPS5779256A true JPS5779256A (en) 1982-05-18
JPS6239267B2 JPS6239267B2 (en) 1987-08-21

Family

ID=15605370

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15541080A Granted JPS5779256A (en) 1980-11-04 1980-11-04 Fuel injection valve

Country Status (1)

Country Link
JP (1) JPS5779256A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58151005A (en) * 1982-03-03 1983-09-08 Canon Electronics Inc Magnetic coil
JPS58176462A (en) * 1982-04-07 1983-10-15 Hitachi Zosen Corp Fuel injection valve controlling apparatus for diesel engine
JPS6149164A (en) * 1984-08-17 1986-03-11 Nippon Soken Inc Fuel injection valve
JPH0161457U (en) * 1987-10-13 1989-04-19

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58151005A (en) * 1982-03-03 1983-09-08 Canon Electronics Inc Magnetic coil
JPS58176462A (en) * 1982-04-07 1983-10-15 Hitachi Zosen Corp Fuel injection valve controlling apparatus for diesel engine
JPS6340273B2 (en) * 1982-04-07 1988-08-10 Hitachi Shipbuilding Eng Co
JPS6149164A (en) * 1984-08-17 1986-03-11 Nippon Soken Inc Fuel injection valve
JPH0161457U (en) * 1987-10-13 1989-04-19

Also Published As

Publication number Publication date
JPS6239267B2 (en) 1987-08-21

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