JPS588746U

JPS588746U - fuel injection pump

Info

Publication number: JPS588746U
Application number: JP10247181U
Authority: JP
Inventors: 吉田　初男; 田中　規稔; 鳥塚　啓二
Original assignee: 株式会社ボッシュオートモーティブ　システム
Priority date: 1981-07-10
Filing date: 1981-07-10
Publication date: 1983-01-20

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の燃料噴射ポンプの一部切欠断面図、第２
図は第１図のプランジャのリードを及びプランジャバレ
ルの吸排孔部の展開説明図、第３図は本考案に係る燃料
噴射ポンプのプランジャのリード部及びプランジャバレ
ルの吸排孔部の一実施例を示す展開説明図である。゛　　１．２０・・回生プランジャ、２・・開側プラン
ジャ、３．４，２０ａ、２０ｂ−−−−−−ＩＪ−ド、
７゜２１・・・・・・プランジャバレル、７ａ、　　２
１２．　２　ｌｂ・・・・・・吸排孔、１３．１６・・
・・・・ラック。Figure 1 is a partially cutaway sectional view of a conventional fuel injection pump;
The figure is an explanatory expanded view of the lead of the plunger and the suction/discharge hole of the plunger barrel shown in FIG. 1, and FIG. 3 is an example of the lead of the plunger and the suction/discharge hole of the plunger barrel of the fuel injection pump according to the present invention. FIG.゛ 1.20... Regenerative plunger, 2... Opening side plunger, 3.4, 20a, 20b----IJ-do,
7゜21...Plunger barrel, 7a, 2
12. 2 lb... Suction and exhaust hole, 13.16...
····rack.

Claims

[Scope of utility model registration request]

In a fuel injection pump having a variable injection timing plunger formed by fitting a second plunger having an injection start lead defining the fuel injection start time into a first plunger having an injection end lead defining the fuel injection end time. , two injection end leads are formed at symmetrical positions on the circumferential surface of the first plunger, and two suction and exhaust holes are formed on the plunger barrel side in correspondence with each of the injection end leads, so that the jet flow at the end of injection is formed. A fuel injection pump characterized in that a plunger is prevented from collapsing.