JPS5820334U

JPS5820334U - Turbocharged engine with auxiliary air compressor

Info

Publication number: JPS5820334U
Application number: JP11552581U
Authority: JP
Inventors: 平林　雄二
Original assignee: 日産自動車株式会社
Priority date: 1981-08-03
Filing date: 1981-08-03
Publication date: 1983-02-08

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図は従来例の概略構成図である。第２図は本考案の
一実施例の概略構成図、第３図はその補助空気圧縮機の
出口圧及びターボ過給気コンプレッサの出口圧の急加速
時の変化を表わした特性図、第４図は同じく変速機を１
速から２速へと変速しながら急加速したときの過給圧な
らびにエンジン発生トルクの変化を表わした特性図であ
る。１・・・エンジン、２・・・ターボ過給機、３・・・コ
ンプレッサ、５，５Ａ・・・吸気通路、６Ａ・・・補助
空気圧縮機の吐出側通路、７・・・補助空気圧縮機、１
３・・・排気タービン、２１・・・電磁クラッチ、２３
・・・絞り弁、２４・・・開度検出スイッチ（加速検出
手段）、２５・・・圧力スイッチ（圧力検出手段）、２
６・・・排気通路、２６Ａ・・・排気バイパス通路、２
７・・・排気バイパス弁装置、２８・・・電磁ソレノイ
ド。FIG. 1 is a schematic diagram of a conventional example. Fig. 2 is a schematic configuration diagram of an embodiment of the present invention, Fig. 3 is a characteristic diagram showing changes in the outlet pressure of the auxiliary air compressor and the outlet pressure of the turbocharged air compressor during sudden acceleration, and Fig. 4 The diagram also shows the transmission 1
FIG. 3 is a characteristic diagram showing changes in supercharging pressure and engine generated torque when rapidly accelerating while changing gears from 1st to 2nd speed. DESCRIPTION OF SYMBOLS 1...Engine, 2...Turbocharger, 3...Compressor, 5,5A...Intake passage, 6A...Discharge side passage of auxiliary air compressor, 7...Auxiliary air compression Machine, 1
3... Exhaust turbine, 21... Electromagnetic clutch, 23
... Throttle valve, 24... Opening detection switch (acceleration detection means), 25... Pressure switch (pressure detection means), 2
6...Exhaust passage, 26A...Exhaust bypass passage, 2
7...Exhaust bypass valve device, 28...Electromagnetic solenoid.

Claims

[Scope of utility model registration request]

In a supercharged engine equipped with a turbo supercharger driven by exhaust gas from the engine and an auxiliary air compressor driven by engine output, the discharge side passage of the auxiliary air compressor is connected to the compressor of the turbo supercharger. is also connected to the engine intake passage on the downstream side, while an electromagnetic clutch that connects the engine output to the auxiliary air compressor, an exhaust bypass passage that bypasses the exhaust turbine of the turbocharger, and an electromagnetic solenoid that connects this exhaust bypass passage. an exhaust bypass valve device that opens and closes; a pressure detection device that detects supercharging pressure and opens and closes energization of the electromagnetic solenoid and the electromagnetic clutch; and an acceleration detection device that detects an engine acceleration state and controls the operation of the pressure detection device. means for opening the exhaust bypass valve device via the electromagnetic solenoid until the boost pressure reaches a predetermined first specified pressure when the engine suddenly accelerates, and opening the exhaust bypass valve device via the electromagnetic clutch until the boost pressure reaches a second specified pressure when the engine suddenly accelerates. A turbocharged engine with an auxiliary air compressor that drives the auxiliary air compressor.