JPS59154827U

JPS59154827U - Internal combustion engine supercharging device

Info

Publication number: JPS59154827U
Application number: JP4862283U
Authority: JP
Inventors: 啓司畑中
Original assignee: 日産自動車株式会社
Priority date: 1983-03-31
Filing date: 1983-03-31
Publication date: 1984-10-17

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 the drawing]

第１図は従来の過給装置を示す構成説明図、第２図はこ
の考案に係る過給装置を示す構成説明図である。１１・・・内燃機関、１２・・・低速側過給機、１３・
・・低速側コンプレッサ、１４・・・低速側タービン、
１５・・・高速側過給機、１６・・・高速側コンプレッ
サ、１７・・・高速側タービン、２１・・・吸気合流制
御弁、２３・・・排気分流制御弁、２４・・・エアフロ
ーメータ、３１・・・高速側サージ防止弁、３２・・・
低速側排気バイパス弁、３３・・・高速側排気バイパス
弁、４０゜４２・・・三方［磁弁、４３・・・コントロ
ールユニット。FIG. 1 is a structural explanatory diagram showing a conventional supercharging device, and FIG. 2 is a structural explanatory diagram showing a supercharging device according to this invention. 11... Internal combustion engine, 12... Low speed side supercharger, 13.
...Low speed side compressor, 14...Low speed side turbine,
15... High speed side supercharger, 16... High speed side compressor, 17... High speed side turbine, 21... Intake merging control valve, 23... Exhaust flow dividing control valve, 24... Air flow meter , 31... High speed side surge prevention valve, 32...
Low-speed side exhaust bypass valve, 33...High-speed side exhaust bypass valve, 40° 42... Three-way [Magnetic valve, 43... Control unit.

Claims

[Scope of utility model registration request]

a low-speed side supercharger having a low-speed side compressor and a low-speed side turbine that are constantly connected to the engine; and a high-speed side supercharger having a high-speed side compressor and a high-speed side turbine arranged in parallel with the low-speed side compressor and low-speed side turbine, respectively. a feeder, an air flow meter disposed upstream of both compressors, and an exhaust flow distribution control valve disposed upstream of the high-speed turbine and controlled to open and close based on boost pressure at the outlet of the low-speed compressor. , an intake merging control valve that is disposed at the merging section downstream of both compressors and is opened and closed by the switching operation of a solenoid valve at a predetermined amount of intake air; a high-speed side intake circulation passage that communicates with the inlet side; a high-speed side surge prevention valve that is interposed in the high-speed side intake circulation passage and is opened and closed by a switching operation of a solenoid valve at a predetermined intake air amount; An internal combustion engine comprising a low-speed side exhaust bypass valve and a high-speed side exhaust bypass valve, which are arranged on the inlet side of a low-speed side turbine and a high-speed side turbine, respectively, and whose opening and closing are controlled by the supercharging pressure on the outlet side of a high-speed side compressor. supercharging device.