JPS59107031U

JPS59107031U - Fuel injection pump timer mechanism

Info

Publication number: JPS59107031U
Application number: JP15183U
Authority: JP
Inventors: 兼先伸和; 江藤幸寛
Original assignee: 日産自動車株式会社
Priority date: 1983-01-05
Filing date: 1983-01-05
Publication date: 1984-07-19

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来における燃料噴射ポンプのタイマ機構を示
す断面図、第２図はこの考案に係るタイマ機構を示す断
面図である。１・・・・・・タイマハウジング、３・・・・・・タイ
マシリンダ、４・・・・・・タイマピストン、５・・・
・・田−ラ、６・・・・・・ローラホルダ、７・・・・
・・ピン、８・・・・・・油圧室、１０・・・・・・低
圧室、１１・・・・・・タイマピストン付勢スプリング
、１２・・・・・・圧力逃がし通路、１３・・・・・・
タイマ制御弁。FIG. 1 is a sectional view showing a conventional timer mechanism of a fuel injection pump, and FIG. 2 is a sectional view showing a timer mechanism according to this invention. 1...Timer housing, 3...Timer cylinder, 4...Timer piston, 5...
...Tara, 6...Roller holder, 7...
... Pin, 8 ... Hydraulic chamber, 10 ... Low pressure chamber, 11 ... Timer piston biasing spring, 12 ... Pressure relief passage, 13 ...・・・・・・
Timer control valve.

Claims

[Scope of utility model registration request]

a timer cylinder formed in the pump housing; a timer piston slidably disposed within the timer cylinder and linked to a cam mechanism that determines fuel injection timing;
A timer piston urging spring is disposed at one end of the timer cylinder and presses the timer piston to retard the injection timing, and the other end of the timer cylinder is defined by the timer piston, and the timer piston A hydraulic chamber into which pump chamber pressure is introduced to push the injection timing to the advanced side, a pressure relief passage communicating the hydraulic chamber and the low pressure side of the pump, and a pressure relief passage interposed in this pressure relief passage to reduce the pressure in the hydraulic chamber. A fuel injection pump timer mechanism consisting of a variable control timer control valve.