JPS60155731U

JPS60155731U - Internal combustion engine boost pressure control device

Info

Publication number: JPS60155731U
Application number: JP4175584U
Authority: JP
Inventors: 淳一横山
Original assignee: 日産自動車株式会社
Priority date: 1984-03-26
Filing date: 1984-03-26
Publication date: 1985-10-17

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図は従来例の構成図、第２図は本考案の第１実施例
を示す構成図、第３図は本考案の第２実施例を示す要部
の構成図、第４図は本考案の第３実施例を示す要部の構
成図、第５図は本考案の第４実施例を示す要部の構成図
、第６図は第５図に示したサーモバルブの具体例を示す
断面図である。１０・・・排気ターボ過給機、１１・・・タービンホイ
ール、１２・・・コンプレッサホイール、１４・・・バ
イパス通路、１５・・・バイパス弁、１６・・・吸気通
路、１７ａ・・・圧力室、１７ｂ・・・ダイヤフラム（
受圧部材）、１７ｄ・・・リテーナ、１７ｅ・・・スプ
リング、１７ｆ・・・ソレノイドアクチュエータ、１８
・・・リンク機構、１８ａ・・田ツド、１８ｃ・・・ピ
ストン、ｈ・・・間隙、１９・・・温度センサ、２２・
・・サーモバルブ、２７，３７・・・サーモアクチュエ
ータ、２９・・・冷却通路、３７ａ・・・コイル、３７
ｂ・・・流体通路、４７・・・ダイヤフラムアクチュエ
ータ。１８ｄ　　１８ｅ　　””ｈ＼　　　　　　　　ｌ　　、。＋７ａ１７ｄ１Fig. 1 is a block diagram of a conventional example, Fig. 2 is a block diagram showing a first embodiment of the present invention, Fig. 3 is a block diagram of main parts showing a second embodiment of the present invention, and Fig. 4 is a block diagram of the main part of the present invention. Fig. 5 is a block diagram of the main parts showing the third embodiment of the invention, Fig. 5 is a block diagram of the main parts showing the fourth embodiment of the invention, and Fig. 6 shows a specific example of the thermovalve shown in Fig. 5. FIG. DESCRIPTION OF SYMBOLS 10... Exhaust turbo supercharger, 11... Turbine wheel, 12... Compressor wheel, 14... Bypass passage, 15... Bypass valve, 16... Intake passage, 17a... Pressure Chamber, 17b...Diaphragm (
pressure receiving member), 17d... retainer, 17e... spring, 17f... solenoid actuator, 18
...Link mechanism, 18a...Tatsudo, 18c...Piston, h...Gap, 19...Temperature sensor, 22.
... Thermo valve, 27, 37... Thermo actuator, 29... Cooling passage, 37a... Coil, 37
b...Fluid passage, 47...Diaphragm actuator. 18d 18e ””h \ l,. +7a1 7d1

Claims

[Scope of utility model registration request]

The upstream and downstream sides of the turbine wheel of an exhaust turbo supercharger installed in the exhaust system of an internal combustion engine are connected via a bypass passage,
A bypass valve installed in the bypass passage and a pressure-receiving member displacing in response to the intake pressure downstream of the compressor wheel of the exhaust turbo supercharger are connected by a link mechanism with a predetermined gap interposed therebetween. A means for detecting a temperature related to the pressure receiving member is provided, and as the temperature detected through the means becomes high, the initial setting position of the pressure receiving member is switched and set so that the gap becomes small. A supercharging pressure control device for an internal combustion engine, characterized in that it is provided with a position setting means.