JPS5919934U

JPS5919934U - Fuel distributor for multiple injection valves

Info

Publication number: JPS5919934U
Application number: JP7575783U
Authority: JP
Inventors: 立川　忠司
Original assignee: Kawasaki Jukogyo KK
Current assignee: Kawasaki Motors Ltd
Priority date: 1983-05-19
Filing date: 1983-05-19
Publication date: 1984-02-07
Also published as: JPS5913310Y2

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ａ、　　ｂは従来の分流弁を示す縦断面図、第２
図は本発明による分配器の縦断面図、第３図は複式噴射
弁の流量−圧力特性を示すグラフである。１・・・流入口、２・・・流出口、４・・・２次流出口
、６・・・ボディ、７・・・弁座、８・・・シリンダ、
９・・・プランジャ、１０・・・圧縮スプリング。第２図、第３図Figures 1a and b are vertical cross-sectional views showing a conventional flow dividing valve;
The figure is a longitudinal sectional view of a distributor according to the present invention, and FIG. 3 is a graph showing flow rate-pressure characteristics of a dual injection valve. 1... Inflow port, 2... Outlet port, 4... Secondary outflow port, 6... Body, 7... Valve seat, 8... Cylinder,
9...Plunger, 10...Compression spring. Figures 2 and 3

Claims

[Scope of utility model registration request]

A plunger fitted into a cylinder in the body so as to be able to slide inside the cylinder via a compression spring is seated on a valve seat provided on the end face of the cylinder connected to the inlet passage, and the inlet passage is communicated with the primary outlet; In a configuration in which the cylinder surface is provided with a secondary outlet that is opened and closed by the plunger, the plunger is fitted onto the inner peripheral surface of the cylinder in a liquid-tight manner, and the valve seat is seated relative to the diameter of the cylinder on which the plunger slides. The diameter of the plunger is reduced to form a non-seated portion on the outer periphery of the plunger end face, and the valve seat is made to protrude from the cylinder end face into the cylinder so that the plunger end face only seats on the valve seat in the seated state. The diameter of the seat and the spring characteristics of the compression spring are set to give a jump to the stroke of the plunger during cracking operation, and the valve seat eliminates leakage to the secondary outlet before cracking, and also reduces the pressure receiving area difference to the plunger. A metering valve formed by the plunger has a two-stage structure: a valve seat provided so as to give the same amount of pressure, a secondary outlet provided on the cylinder surface offset from the valve seat by the jumping ability of the plunger due to the difference in area, and a metering valve formed by the plunger. This dual injection valve is characterized by improving the stability of valve operation and opening/closing performance so that the diversion to the secondary outlet is quickly and smoothly prepared, followed by stable secondary diversion. fuel distributor.