JPS60117259U

JPS60117259U - Negative pressure introduction device for negative pressure booster

Info

Publication number: JPS60117259U
Application number: JP544684U
Authority: JP
Inventors: 宮崎　義久; 孝義篠原
Original assignee: 日信工業株式会社
Priority date: 1984-01-19
Filing date: 1984-01-19
Publication date: 1985-08-08

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図は本考案装置の一実施例を示す縦断側面図、第２
図は第１図における逆止弁の拡大縦断側面図、第３図は
第２図の■−■線断面図である。Ｂ・・・ブースタ、Ｍ・・・吸気マニホールド、１・・
・シェル、２・・・負圧導入管、３・・・負圧導出管、
５・・・逆止弁、９・・・負圧入口、１０・・・負圧出
口、１１・・・弁座、１２・・・弁体、１３・・・弁ば
ね、１７・・・オリフィス。Fig. 1 is a longitudinal cross-sectional side view showing one embodiment of the device of the present invention;
The figure is an enlarged vertical sectional side view of the check valve in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line ■--■ in FIG. 2. B...Booster, M...Intake manifold, 1...
・Shell, 2... Negative pressure introduction pipe, 3... Negative pressure outlet pipe,
5... Check valve, 9... Negative pressure inlet, 10... Negative pressure outlet, 11... Valve seat, 12... Valve body, 13... Valve spring, 17... Orifice .

Claims

[Scope of utility model registration request]

The negative pressure booster and the engine intake manifold, which is the source of negative pressure, are connected through a negative pressure passage, and the
In the negative pressure introduction device for a negative pressure booster, the negative pressure introduction device includes a check valve that allows negative pressure to flow only in one direction from the intake manifold to the booster, and the negative pressure outlet of the check valve is provided with a negative pressure outlet. A negative pressure introduction device for a negative pressure booster, characterized in that an orifice is provided eccentrically from the core wire.