JPH0224042U

JPH0224042U -

Info

Publication number: JPH0224042U
Application number: JP10190088U
Authority: JP
Priority date: 1988-07-30
Filing date: 1988-07-30
Publication date: 1990-02-16

Description

[Brief explanation of drawings]

第１図は本考案の第一実施例を示す全体概略構
成図、第２図は同実施例におけるブロアの作動説
明図、第３図は同実施例の共鳴用吸気分岐路にお
ける圧力波の特性図、第４図は同実施例のブロア
体積効率特性図、第５図は本考案の第二実施例を
示す要部概略構成図、第６図は本考案の第三実施
例を示す全体概略構成図、第７図は同実施例の共
鳴用吸気分岐路における圧力波の特性図、第８図
は同実施例の制御弁の開閉モードを示す図、第９
図は同実施例のブロア体積効率特性図である。１……ルーツ過給機、Ａ，Ｂ……ブロア、３，
４……ロータ、５……吸入口、６……吐出口、８
……エンジン、１２，１３……歯車、１５，１６
……共鳴用吸気分岐路、１７……仕切り壁、１９
……吸気マニホールド、２１，２２……共鳴箱、
２３……制御弁、２４……エアアクチユエータ、
２５……三方電磁弁、２６……エアタンク、２７
……制御器、２８……回転速度センサ、２９……
負荷センサ。 Fig. 1 is an overall schematic configuration diagram showing the first embodiment of the present invention, Fig. 2 is an explanatory diagram of the operation of the blower in the same embodiment, and Fig. 3 is the characteristic of pressure waves in the resonance intake branch of the same embodiment. Figure 4 is a blower volumetric efficiency characteristic diagram of the same embodiment, Figure 5 is a schematic configuration diagram of main parts showing a second embodiment of the present invention, and Figure 6 is an overall schematic diagram showing a third embodiment of the present invention. 7 is a characteristic diagram of pressure waves in the resonance intake branch path of the same embodiment. FIG. 8 is a diagram showing the opening/closing mode of the control valve of the same embodiment.
The figure is a diagram of the blower volumetric efficiency characteristic of the same example. 1... Roots supercharger, A, B... Blower, 3,
4...Rotor, 5...Suction port, 6...Discharge port, 8
...Engine, 12,13...Gear, 15,16
... Resonance intake branch, 17 ... Partition wall, 19
...Intake manifold, 21, 22...Resonance box,
23... control valve, 24... air actuator,
25...Three-way solenoid valve, 26...Air tank, 27
...Controller, 28...Rotation speed sensor, 29...
load sensor.

Claims

[Scope of utility model registration request]

A positive displacement supercharger is provided with a plurality of blowers each having a different phase, and the suction ports of the blowers are connected by a resonant intake branch passage, and the discharge port side of the positive displacement supercharger is connected to the intake manifold of the engine. Fueled engine.