JPS5890366U

JPS5890366U - Fuel injection pump delivery valve

Info

Publication number: JPS5890366U
Application number: JP18586381U
Authority: JP
Inventors: 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: 1981-12-14
Filing date: 1981-12-14
Publication date: 1983-06-18

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図は従来の燃料噴射ポンプの送出弁を示す断面図、
第２図はクッション型の送出弁の従来例を示す断面図、
第３図乃至第６図はこの考案の一実施例を示し、第３図
は着座状態を示す半断面図、第４図は開弁状態を示す半
断面図、第５図は吸戻レストローフ開始時の状態を示す
半断面図、第６図はクッション室形成時の状態を示す断
面図である。２・・・・・・弁座体、２ａ・・・・・・シートｉ、２
ｂ・・・・・・通路孔、２Ｃ・・・・・・下クッション
面、２ｄ・・・・・・つば部挿入孔、３・・・・・・弁
体、３ｂ・・・・・・つば部、３ｃ・・・・・・フェー
ス部、３ｄ・・・・・・吸戻しカラ一部、３ｇ・・・・
・・上クッション面、４・・・・・・弁ばね、５・・・
・・・クッション室。２Ｎ　　　　Ｉ＋３ｆワト　１１Figure 1 is a sectional view showing a delivery valve of a conventional fuel injection pump;
Figure 2 is a sectional view showing a conventional example of a cushion-type delivery valve;
Figures 3 to 6 show an embodiment of this invention, with Figure 3 being a half sectional view showing the seated state, Figure 4 being a half sectional view showing the valve open state, and Figure 5 being the start of the suction rest loaf. FIG. 6 is a sectional view showing the state when the cushion chamber is formed. 2... Valve seat body, 2a... Seat i, 2
b...Passage hole, 2C...Lower cushion surface, 2d...Brim insertion hole, 3...Valve body, 3b... Brim part, 3c...face part, 3d...part of suction back collar, 3g...
...Upper cushion surface, 4...Valve spring, 5...
...Cushion room. 2N I+ 3f Wato 11

Claims

[Scope of utility model registration request]

A flange portion that receives the valve spring, a conical face portion that is formed following the flange portion and comes into contact with the seat surface of the valve seat body, and a conical face portion that is formed below the face portion and slides into the passage hole of the valve seat body. In a fuel injection pump delivery valve having a valve body provided with a part of a suction-return collar that is movably fitted and performs a suction-return action, the diameter of the flange of the valve body is widened to extend in the circumferential direction of the lower surface of the flange. an upper cushion surface is formed on the valve body, and a lower cushion surface that faces the upper cushion surface of the valve body and continues to the seat surface of the valve seat body, and a collar portion of the valve body that rises from the lower cushion surface. A delivery valve for a fuel injection pump, characterized in that the valve seat body is formed with a flange insertion hole that is inserted within a certain stroke range within a suction and return stroke of the valve body.