JPS591872U

JPS591872U - Fuel injection pump for internal combustion engines

Info

Publication number: JPS591872U
Application number: JP9837382U
Authority: JP
Inventors: 誠二伊月
Original assignee: ヤンマーディーゼル株式会社
Priority date: 1982-06-28
Filing date: 1982-06-28
Publication date: 1984-01-07

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 the drawing]

第１図は本考案実施例に係る内燃機関用燃料噴射ポンプ
の縦断面図、第２図は、第１図の■−■矢視図、第３図
は第１図の燃料噴射ポンプの進角特性曲線図、第４図は
従来の燃料噴射ポンプの進角特性線図である。４・・・・・・プランジャ嵌挿穴、５・・・・・・プラ
ンジャ、５ａ・・・・・・プランジャの頂面、５ｂ・・
・・・・プランジャの側周面、６・・・・・・環状弁、
７・・・・・・通油孔、１２・・・・・・逃油口、１５
・・・・・・調量操作部材、１６・・・・・・タイマー
操作部材、２４……コントロールレバー、Ｙ・・・・・
・連係機構。FIG. 1 is a longitudinal cross-sectional view of a fuel injection pump for an internal combustion engine according to an embodiment of the present invention, FIG. 2 is a view taken along arrows -■ in FIG. Angle characteristic curve diagram, FIG. 4 is an advance angle characteristic curve diagram of a conventional fuel injection pump. 4...Plunger insertion hole, 5...Plunger, 5a...Top surface of plunger, 5b...
... Side peripheral surface of plunger, 6 ... Annular valve,
7...Oil hole, 12...Oil escape port, 15
... Metering operation member, 16 ... Timer operation member, 24 ... Control lever, Y ...
・Coordination mechanism.

Claims

[Scope of utility model registration request]

Fuel can be pumped by reciprocating the plunger 5 within the plunger insertion hole 4, and an oil passage hole is formed on the outside of the plunger 5 spanning between the top surface 5a and the side peripheral surface 5b of the plunger 5. An annular valve 6 that opens and closes 7 is fitted so as to be relatively rotatable and slidable, and furthermore, the position can be set arbitrarily within the fuel injection amount control range from the fuel cutoff position to the maximum injection amount position, and when the engine is started. The annular valve 6 is controlled by the control lever 24 set at the maximum injection amount position in cooperation with a suitable governor device, and the annular valve 6 is controlled by a suitable metering operation member 15 in cooperation with a suitable governor device. The plunger 5 is rotated relative to the plunger 5 in an appropriate angular range through the plunger 5, thereby changing the opening/closing timing of the oil passage hole 7 of the plunger 5, thereby controlling the amount of fuel injected. Further, the fuel injection pump for an internal combustion engine is configured to control the fuel injection timing by displacing the fuel in the axial direction of the plunger 5 by means of an appropriate timer operating member 16 that displaces the annular valve 6 in accordance with the engine rotation speed. The timer operating member 16 and the control lever '2
4. (2) The timer operating member 16 is adjustable and linked by a suitable linkage mechanism Y so that the timer operating member 16 can be appropriately displaced in the advance direction only when the control bar 24 is set at the starting position. Fuel injection pump for internal combustion engines.