JPS5776258A - Fuel injection equipment - Google Patents

Fuel injection equipment

Info

Publication number
JPS5776258A
JPS5776258A JP15076680A JP15076680A JPS5776258A JP S5776258 A JPS5776258 A JP S5776258A JP 15076680 A JP15076680 A JP 15076680A JP 15076680 A JP15076680 A JP 15076680A JP S5776258 A JPS5776258 A JP S5776258A
Authority
JP
Japan
Prior art keywords
injection
fuel
plunger
pressure
pilot
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
JP15076680A
Other languages
Japanese (ja)
Other versions
JPH0220826B2 (en
Inventor
Masaaki Kato
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 JP15076680A priority Critical patent/JPS5776258A/en
Publication of JPS5776258A publication Critical patent/JPS5776258A/en
Publication of JPH0220826B2 publication Critical patent/JPH0220826B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Fuel-Injection Apparatus (AREA)

Abstract

PURPOSE: To enable to facilitate the pilot injection and as well as obtain the optimum injection rate pattern for engine combustion by a method wherein a pressure reduction chamber to temporarily reduce the pressure of the fuel within a pressure feed pump chamber or an injection pump chamber of the fuel injection equipment.
CONSTITUTION: Now in running, when a pressure feed plunger 3 is pushed downward by a cam (not shown) and a metering lead 30 closes a metering port 10, the fuel within the pressure feed pump chamber 32 is pressure-fed so as to apply on an injection plunger 2. As a result, the fuel within the injection pump chamber 22 is led through passages 41, 43 and the like to a nozzle 44 and injected from nozzle holes by pushing up a needle valve with the fuel itself. After that, when the pilot lead 71 of a plunger 3 clears a pilot port 70, the highly pressurized fuel within the chamber 32 is released through vertical openings 34, 72 and the like into the pressure reduction chamber 6. Consequently, the injection plunger 2 stops and the pilot injection is ended. After that, the main injection is commenced by the continuous downward movement of the plunger 3.
COPYRIGHT: (C)1982,JPO&Japio
JP15076680A 1980-10-29 1980-10-29 Fuel injection equipment Granted JPS5776258A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15076680A JPS5776258A (en) 1980-10-29 1980-10-29 Fuel injection equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15076680A JPS5776258A (en) 1980-10-29 1980-10-29 Fuel injection equipment

Publications (2)

Publication Number Publication Date
JPS5776258A true JPS5776258A (en) 1982-05-13
JPH0220826B2 JPH0220826B2 (en) 1990-05-10

Family

ID=15503940

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15076680A Granted JPS5776258A (en) 1980-10-29 1980-10-29 Fuel injection equipment

Country Status (1)

Country Link
JP (1) JPS5776258A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58217758A (en) * 1982-06-11 1983-12-17 Nippon Denso Co Ltd Fuel injector with pilot injection mechanism
JPS59119060A (en) * 1982-12-25 1984-07-10 Hino Motors Ltd Unit injector for diesel engine
JPS59119061A (en) * 1982-12-25 1984-07-10 Hino Motors Ltd Unit injector for diesel engine
JPS59158369A (en) * 1983-02-28 1984-09-07 Hino Motors Ltd Unit injector for diesel engine
JPS59158370A (en) * 1983-02-28 1984-09-07 Hino Motors Ltd Unit injector
JPS59162357A (en) * 1983-03-07 1984-09-13 Nippon Denso Co Ltd Fuel injection device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49123418U (en) * 1973-02-21 1974-10-23
JPS55101759A (en) * 1979-01-25 1980-08-04 Bendix Corp Fuel injector and method of electronically operating fuel injector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49123418U (en) * 1973-02-21 1974-10-23
JPS55101759A (en) * 1979-01-25 1980-08-04 Bendix Corp Fuel injector and method of electronically operating fuel injector

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58217758A (en) * 1982-06-11 1983-12-17 Nippon Denso Co Ltd Fuel injector with pilot injection mechanism
JPS59119060A (en) * 1982-12-25 1984-07-10 Hino Motors Ltd Unit injector for diesel engine
JPS59119061A (en) * 1982-12-25 1984-07-10 Hino Motors Ltd Unit injector for diesel engine
JPS59158369A (en) * 1983-02-28 1984-09-07 Hino Motors Ltd Unit injector for diesel engine
JPS59158370A (en) * 1983-02-28 1984-09-07 Hino Motors Ltd Unit injector
JPH031509B2 (en) * 1983-02-28 1991-01-10 Hino Jidosha Kogyo Kk
JPH0415392B2 (en) * 1983-02-28 1992-03-17 Hino Jidosha Kogyo Kk
JPS59162357A (en) * 1983-03-07 1984-09-13 Nippon Denso Co Ltd Fuel injection device

Also Published As

Publication number Publication date
JPH0220826B2 (en) 1990-05-10

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