JPS5765852A - Preliminary injection device for distribution type fuel injection pump - Google Patents

Preliminary injection device for distribution type fuel injection pump

Info

Publication number
JPS5765852A
JPS5765852A JP14198780A JP14198780A JPS5765852A JP S5765852 A JPS5765852 A JP S5765852A JP 14198780 A JP14198780 A JP 14198780A JP 14198780 A JP14198780 A JP 14198780A JP S5765852 A JPS5765852 A JP S5765852A
Authority
JP
Japan
Prior art keywords
injection
passage
preliminary
valve
fuel
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.)
Pending
Application number
JP14198780A
Other languages
Japanese (ja)
Inventor
Shigefumi Yasuhara
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP14198780A priority Critical patent/JPS5765852A/en
Publication of JPS5765852A publication Critical patent/JPS5765852A/en
Pending legal-status Critical Current

Links

Landscapes

  • Fuel-Injection Apparatus (AREA)

Abstract

PURPOSE: To reduce the generation of NOx in a distribution type fuel injection pump by making a preliminary injection at the time of low speed and low load just before a main injection for changing the rate of injection.
CONSTITUTION: In a plunger barrel 31, a plunger 30 is slided to rotate and reciprocate as interlocking with an engine. The fuel introduced from a suction passage 34 is pressurized in a high pressure chamber 32, and supplied to a fuel injection valve 38 via an oil feed passage 33, a slit-shaped connection port 36 for main injection, and a distribution passage 35'. Meanwhile, the high pressure chamber 32 is connected to a preliminary injection connecting passage 41 via a flow regulation valve 42 to be opened at the time of low speed and low load with high generation of NOx and a check valve 44. The connecting passage 41 can be successively connected to the connection part 36 via a groove 40. Consequently, fuel is supplied to the injection valve 38 just before a main injection when the regulation valve 42 is opened.
COPYRIGHT: (C)1982,JPO&Japio
JP14198780A 1980-10-13 1980-10-13 Preliminary injection device for distribution type fuel injection pump Pending JPS5765852A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14198780A JPS5765852A (en) 1980-10-13 1980-10-13 Preliminary injection device for distribution type fuel injection pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14198780A JPS5765852A (en) 1980-10-13 1980-10-13 Preliminary injection device for distribution type fuel injection pump

Publications (1)

Publication Number Publication Date
JPS5765852A true JPS5765852A (en) 1982-04-21

Family

ID=15304753

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14198780A Pending JPS5765852A (en) 1980-10-13 1980-10-13 Preliminary injection device for distribution type fuel injection pump

Country Status (1)

Country Link
JP (1) JPS5765852A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4537170A (en) * 1984-02-28 1985-08-27 Diesel Kiki Co., Ltd. Distribution type fuel injection pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4537170A (en) * 1984-02-28 1985-08-27 Diesel Kiki Co., Ltd. Distribution type fuel injection pump

Similar Documents

Publication Publication Date Title
ES482909A1 (en) Fuel injection pump with positive displacement delivery valve having two port areas opened according to fuel flow rate
GB1532189A (en) Fuel injection pump unit
JPS5362037A (en) Carburetter with auxiliary accelerator pump
JPS5765857A (en) Injection rate control device of distribution type fuel injection pump
JPS5765852A (en) Preliminary injection device for distribution type fuel injection pump
ES8201687A1 (en) Pumping liquid by direct gas pressure
JPS54134222A (en) Distributive fuel injection pump
JPS56115849A (en) Fuel injection pump for internal combustion engine
JPS5776258A (en) Fuel injection equipment
JPS5783658A (en) Fuel injection device
JPS5598653A (en) Fuel injection pump
JPS54132022A (en) Priming fuel increasing device of fuel distributing injection pump
JPS575522A (en) Fuel injection device
ES486830A1 (en) Liquid fuel pumping apparatus
JPS5612049A (en) Distribution-type fuel injection pump
JPS55153827A (en) Injection timing regulator in distribution type fuel injector
JPS56132456A (en) Fuel injector
JPS56154158A (en) Distributor type fuel-injection pump
JPS5487329A (en) Fuel injection equipment of internal combustion engine
JPS5797025A (en) Fuel injection pump for diesel engine
JPS55160154A (en) Fuel injector for internal combustion engine
JPS5726259A (en) Engine fueling system
JPS56151262A (en) Fuel injection device
JPS55112857A (en) Fuel injection pump
JPS5713268A (en) Fuel injection device