JPS5870429U

JPS5870429U - Exhaust bypass valve controller for supercharged gasoline engine

Info

Publication number: JPS5870429U
Application number: JP16566581U
Authority: JP
Inventors: 聖治菅
Original assignee: 厚木自動車部品株式会社
Priority date: 1981-11-06
Filing date: 1981-11-06
Publication date: 1983-05-13

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図は排気バイパスバルブを閉じた状態の過給ガソリ
ンエンジンのシステム図、第２図は排気バイパスバルブ
を開いた状態の過給ガソリンエン“ジンのシステム図、
第３図はエンジンの回転数と過給圧の関係を示すグラフ
図、第４図は従来の排気バイパスバルブコントローラー
の要部の断面図、第５図は本考案の排気バイパスバルブ
コントローラーの要部の断面図、第６図は第５図Ａ部の
拡大図である。１・・・・・・排気マニホールド、２・・・・・・ター
ビン、３・・・・・・コンプレッサー、４・・・・・・
吸気マニホールド、５・曲・排気バイパスバルブ、６…
…排気バイパス路、７…・・・排気バイパスバルブコン
トローラー、８・・・・・・シャフト、９・・・・・・
ダイヤフラム、１０・・曲　　゛ハウジング、１０ａ・
・・・・・圧力室、１０ｂ・・・・・・大気室、１１・
・・・・・連通路、１２・・・・・・ゴムブツシュ、１
７・・・・・・環状溝。Figure 1 is a system diagram of a supercharged gasoline engine with the exhaust bypass valve closed; Figure 2 is a system diagram of a supercharged gasoline engine with the exhaust bypass valve open;
Fig. 3 is a graph showing the relationship between engine speed and boost pressure, Fig. 4 is a sectional view of the main parts of a conventional exhaust bypass valve controller, and Fig. 5 is a main part of the exhaust bypass valve controller of the present invention. FIG. 6 is an enlarged view of section A in FIG. 5. 1... Exhaust manifold, 2... Turbine, 3... Compressor, 4...
Intake manifold, 5/song/exhaust bypass valve, 6...
...Exhaust bypass path, 7...Exhaust bypass valve controller, 8...Shaft, 9...
Diaphragm, 10...Crack ゛Housing, 10a...
...Pressure chamber, 10b...Atmospheric chamber, 11.
...Communication path, 12...Rubber bushing, 1
7... Annular groove.

Claims

[Scope of utility model registration request]

A shaft 8 whose one end is attached to the exhaust bypass valve 5 that opens and closes the exhaust bypass passage 6, a diaphragm 9 which is attached to the other end of the shaft 8, and the diaphragm 9 connects the inside to a pressure chamber 10a and an atmospheric chamber 10b. A communication passage 11 connects the pressure chamber 10a of the housing 10 and the intake manifold 4.
and fixed to the shaft 8, the shaft 8
A rubber bushing 12 is provided to prevent rainwater from entering the housing 10 due to the charging pressure, and when the boost pressure exceeds a set value, the diaphragm 9 and shaft 8 are actuated by the boost pressure to bypass the exhaust bypass. Pal 75 open! , an annular shape for fitting and fixing the rubber bush 12 in an exhaust bypass valve controller for a supercharged gasoline engine that maintains supercharging pressure below a set value by causing a part of the exhaust gas to flow around the turbine 2; Groove 17
Exhaust bypass valve controller O for a supercharged gasoline engine, characterized in that it is cold-forged on the outer peripheral surface of a shaft 8 and integrally with the shaft 8.