JPS616652U - Heat protection device for oxygen sensor of internal combustion engine with turbo charger - Google Patents

Heat protection device for oxygen sensor of internal combustion engine with turbo charger

Info

Publication number
JPS616652U
JPS616652U JP9019684U JP9019684U JPS616652U JP S616652 U JPS616652 U JP S616652U JP 9019684 U JP9019684 U JP 9019684U JP 9019684 U JP9019684 U JP 9019684U JP S616652 U JPS616652 U JP S616652U
Authority
JP
Japan
Prior art keywords
oxygen sensor
internal combustion
combustion engine
exhaust gas
exhaust
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.)
Granted
Application number
JP9019684U
Other languages
Japanese (ja)
Other versions
JPH0430357Y2 (en
Inventor
衛 吉岡
Original Assignee
トヨタ自動車株式会社
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 by トヨタ自動車株式会社 filed Critical トヨタ自動車株式会社
Priority to JP9019684U priority Critical patent/JPS616652U/en
Publication of JPS616652U publication Critical patent/JPS616652U/en
Application granted granted Critical
Publication of JPH0430357Y2 publication Critical patent/JPH0430357Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Supercharger (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

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

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

第１図は本考案の酸素センサ対熱構造を備えたターボチ
ャージャ付きエンジンの模式的断面図で、ウエイストゲ
ートバルブが閉開弁状態にあるところを示し、第２図は
第１図の部分図でウエイストゲート弁が開弁したところ
を示す。 １０・・・ターボチャージャ、１６・・・タービンハウ
ジング、２０・・・排気タービン、３２・・・排気管、
３４・・・バイパス、３６・・・ウエイストゲート弁、
４０トケート弁のアクチュエータ、５４・・・酸素セン
サ、５８・・・酸素濃度検出用排気ガス通路。Fig. 1 is a schematic cross-sectional view of a turbocharged engine equipped with the oxygen sensor/thermal structure of the present invention, showing the waste gate valve in the closed/open state, and Fig. 2 is a partial view of Fig. 1. This shows the wastegate valve opening. 10...Turbocharger, 16...Turbine housing, 20...Exhaust turbine, 32...Exhaust pipe,
34... Bypass, 36... Waste gate valve,
40 actuator of the valve, 54...oxygen sensor, 58...exhaust gas passage for oxygen concentration detection.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 排気ガス中の酸素濃度を検出する酸素センサを排気管に
設け、該排気管にはターボチャージヤの排気タービンを
接続して排気ガス流のエネルギにより機関を過給し得る
様になし、前記ターボチャージャには排気タービンを迂
回するバイパスを過給圧力に応じて而閉するウエストゲ
ート弁を設けて成るターボチャージャ付き内燃機関にお
いて、前記、ウエイストゲート弁はその開弁時に排気管
の内部に向かって施回して排気管内の排気ガス流の少な
くとも一部を遮る様に配置すると共に、前記酸素センサ
は前記ウエイストゲート弁の下流側に配置し、もって、
排気ガス温度が高くなる過給圧力上昇時に該ウエイスト
ゲート弁により酸素センサを高温排気ガス流の熱から保
護する様にしたことを特徴とする、ターボチャージャ付
き内燃機関の酸素センサの対熱保護装置。An oxygen sensor for detecting the oxygen concentration in the exhaust gas is provided in the exhaust pipe, and an exhaust turbine of a turbocharger is connected to the exhaust pipe so that the engine can be supercharged by the energy of the exhaust gas flow. In an internal combustion engine with a turbocharger, the charger is provided with a wastegate valve that closes a bypass that bypasses the exhaust turbine in accordance with boost pressure, and the wastegate valve is configured to open toward the inside of the exhaust pipe. The oxygen sensor is arranged so as to block at least a portion of the exhaust gas flow in the exhaust pipe, and the oxygen sensor is arranged downstream of the wastegate valve.
A heat protection device for an oxygen sensor of an internal combustion engine equipped with a turbocharger, characterized in that the waste gate valve protects the oxygen sensor from the heat of the high-temperature exhaust gas flow when the supercharging pressure rises when the exhaust gas temperature increases. .
JP9019684U 1984-06-19 1984-06-19 Heat protection device for oxygen sensor of internal combustion engine with turbo charger Granted JPS616652U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9019684U JPS616652U (en) 1984-06-19 1984-06-19 Heat protection device for oxygen sensor of internal combustion engine with turbo charger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9019684U JPS616652U (en) 1984-06-19 1984-06-19 Heat protection device for oxygen sensor of internal combustion engine with turbo charger

Publications (2)

Publication Number Publication Date
JPS616652U true JPS616652U (en) 1986-01-16
JPH0430357Y2 JPH0430357Y2 (en) 1992-07-22

Family

ID=30644975

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9019684U Granted JPS616652U (en) 1984-06-19 1984-06-19 Heat protection device for oxygen sensor of internal combustion engine with turbo charger

Country Status (1)

Country Link
JP (1) JPS616652U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014005763A (en) * 2012-06-22 2014-01-16 Mitsubishi Motors Corp Intake system structure of internal combustion engine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS569632A (en) * 1979-07-02 1981-01-31 Toyota Motor Corp Air-fuel ratio controller of internal combustion engine equipped with exhaust turbo-charger
JPS56152837U (en) * 1980-03-31 1981-11-16
JPS56152837A (en) * 1980-03-25 1981-11-26 Owens Illinois Inc Thermoplastic polyester and manufacture of hollow article therefrom

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS569632A (en) * 1979-07-02 1981-01-31 Toyota Motor Corp Air-fuel ratio controller of internal combustion engine equipped with exhaust turbo-charger
JPS56152837A (en) * 1980-03-25 1981-11-26 Owens Illinois Inc Thermoplastic polyester and manufacture of hollow article therefrom
JPS56152837U (en) * 1980-03-31 1981-11-16

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014005763A (en) * 2012-06-22 2014-01-16 Mitsubishi Motors Corp Intake system structure of internal combustion engine

Also Published As

Publication number Publication date
JPH0430357Y2 (en) 1992-07-22

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