JPH02149832U - - Google Patents

Info

Publication number
JPH02149832U
JPH02149832U JP5958989U JP5958989U JPH02149832U JP H02149832 U JPH02149832 U JP H02149832U JP 5958989 U JP5958989 U JP 5958989U JP 5958989 U JP5958989 U JP 5958989U JP H02149832 U JPH02149832 U JP H02149832U
Authority
JP
Japan
Prior art keywords
passage
pressure
relief
bypass
introduction passage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP5958989U
Other languages
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP5958989U priority Critical patent/JPH02149832U/ja
Publication of JPH02149832U publication Critical patent/JPH02149832U/ja
Pending legal-status Critical Current

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  • Supercharger (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第1図〜第4図は実施例を示し、第1図は全体
概略構成図、第2図はコントロールユニツトの作
動を説明するフローチヤート図、第3図はデユー
テイの特性を説明する特性図、第4図はソレノイ
ド弁の作動特性を示す特性図である。第5図は変
形例のコントロールユニツトの作動を説明するフ
ローチヤート図である。 1……エンジン、30……排気ターボ過給機、
31……タービン、33……パイパス通路、34
……ウエストゲート弁、35……アクチユエータ
、36……圧力導入通路、37……リリーフ通路
、38……デユーテイ・ソレノイド・バルブ、3
9……リリーフ遮断弁。
1 to 4 show an embodiment, where FIG. 1 is a general schematic diagram, FIG. 2 is a flowchart explaining the operation of the control unit, and FIG. 3 is a characteristic diagram explaining duty characteristics. FIG. 4 is a characteristic diagram showing the operating characteristics of the solenoid valve. FIG. 5 is a flowchart illustrating the operation of the modified control unit. 1...Engine, 30...Exhaust turbo supercharger,
31...Turbine, 33...Bypass passage, 34
...wastegate valve, 35...actuator, 36...pressure introduction passage, 37...relief passage, 38...duty solenoid valve, 3
9...Relief shutoff valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 排気ターボ過給機と、該排気ターボ過給機のタ
ービンをバイパスするように排気通路に設けられ
たバイパス通路と、該バイパス通路に設けられた
ウエストゲート弁と、該ウエストゲート弁を開閉
する圧力応動式のアクチユエータと、該アクチユ
エータに過給圧を導入する圧力導入通路と、デユ
ーテイ・ソレノイド・バルブを有して圧力導入通
路に接続され、デユーテイ比に応じて圧力導入通
路の圧力をリリーフするリリーフ通路と、上記圧
力導入通路のリリーフ通路接続部よりも過給圧源
側に、上記デユーテイ・ソレノイド・バルブがリ
リーフ通路を全開にするときに閉じるリリーフ遮
断弁とを設けたことを特徴とするエンジンの過給
圧制御装置。
An exhaust turbo supercharger, a bypass passage provided in the exhaust passage so as to bypass the turbine of the exhaust turbo supercharger, a waste gate valve provided in the bypass passage, and a pressure for opening and closing the waste gate valve. A responsive actuator, a pressure introduction passage that introduces boost pressure to the actuator, and a relief that has a duty solenoid valve and is connected to the pressure introduction passage and relieves the pressure in the pressure introduction passage according to the duty ratio. and a relief cutoff valve that is closed when the duty solenoid valve fully opens the relief passage. boost pressure control device.
JP5958989U 1989-05-22 1989-05-22 Pending JPH02149832U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5958989U JPH02149832U (en) 1989-05-22 1989-05-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5958989U JPH02149832U (en) 1989-05-22 1989-05-22

Publications (1)

Publication Number Publication Date
JPH02149832U true JPH02149832U (en) 1990-12-21

Family

ID=31586217

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5958989U Pending JPH02149832U (en) 1989-05-22 1989-05-22

Country Status (1)

Country Link
JP (1) JPH02149832U (en)

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