JPS62162349U

JPS62162349U -

Info

Publication number: JPS62162349U
Application number: JP5088086U
Authority: JP
Priority date: 1986-04-07
Filing date: 1986-04-07
Publication date: 1987-10-15

Description

[Brief explanation of the drawing]

第１図は本考案による過給機付エンジン排気装
置の要部を概略的に示す部分断面図、第２図は従
来の燃料噴射式エンジンのシステム構成図である
。１……エンジン、２……排気マニホールド、３
……排気ターボ過給機、４……排気通路、５……
吸気通路、６ａ，６ｂ……排気通路、７……排気
タービン、８……排気ガス導入通路、９……コン
プレツサ、１０……仕切壁、１１……第１の通路
部分、１２……第２の通路部分、１３……切替バ
ルブ、１４……ウエストゲート通路、１５……ウ
エストゲートバルブ、１６……壁部、１７……切
欠、１８……排気センサ。 FIG. 1 is a partial sectional view schematically showing the main parts of a supercharged engine exhaust system according to the present invention, and FIG. 2 is a system configuration diagram of a conventional fuel injection engine. 1...Engine, 2...Exhaust manifold, 3
...Exhaust turbo supercharger, 4...Exhaust passage, 5...
Intake passage, 6a, 6b... Exhaust passage, 7... Exhaust turbine, 8... Exhaust gas introduction passage, 9... Compressor, 10... Partition wall, 11... First passage portion, 12... Second passage portion, 13... switching valve, 14... waste gate passage, 15... waste gate valve, 16... wall portion, 17... notch, 18... exhaust sensor.

Claims

[Scope of Claim for Utility Model Registration] The exhaust turbo supercharger is equipped with a plurality of cylinders and an exhaust turbo supercharger for supercharging intake air to these cylinders, and the exhaust gas introducing passage to the exhaust turbine of the exhaust turbo supercharger is the first one. and a second path section, and at low speeds, exhaust gas is allowed to flow only through the first path section, and at high speeds, exhaust gas is allowed to flow through both the first and second path sections. In an exhaust system for a mechanical engine, the plurality of cylinders are divided into at least two cylinder groups, the exhaust passages respectively derived from each cylinder group are connected to the exhaust gas introduction passage after being collected, and the exhaust passages are connected to the collection part of the exhaust passages. , a wall portion is provided for guiding the exhaust gas toward substantially the center of the inlet portion of the first passage portion, and an exhaust gas sensor for detecting the exhaust gas component concentration is provided on the wall portion, and a part of the wall portion is provided. What is claimed is: 1. An exhaust turbo supercharged engine, characterized in that the engine is formed with an exhaust turbo supercharger and is mounted so as to be exposed to exhaust gas from each of the cylinder groups.