JPS63158516U

JPS63158516U -

Info

Publication number: JPS63158516U
Application number: JP5123187U
Authority: JP
Priority date: 1987-04-04
Filing date: 1987-04-04
Publication date: 1988-10-18
Anticipated expiration: 2002-04-04
Also published as: JPH0629464Y2

Description

[Brief explanation of the drawing]

第１図は本考案の第１の実施例に係る過給機付
エンジンのブローバイガス処理装置の要部縦断面
図、第２図は本考案の第２の実施例に係る過給機
付エンジンのブローバイガス処理装置の要部縦断
面図、第３図は本考案の第３の実施例に係る過給
機付エンジンのブローバイガス処理装置の要部縦
断面図、第４図はエンジン回転数に対するクラン
ク室内圧の変化特性図、第５図は従来一般の過給
機付エンジンのブローバイガス処理装置の全体シ
ステム図、第６図は第５図の部拡大縦断面図で
ある。１……エンジン、２……吸気マニホールド、３
……排気マニホールド、４……吸気通路、５……
排気通路、６……圧力波過給機、７……エアクリ
ーナ、８……インタークーラ、９……スターテイ
ングバルブ、１０……エゼクター、１１……ブロ
ーバイガス出口、１２……ブローバイガス入口、
１３……ヘツドカバー、１９……吸気取出口、２
０……ブローバイガス排出通路、２１……上流側
通路、２２……下流側通路、２３……圧力導入通
路、２４……吸気バイパス通路、３１……空室、
３２……ベンチユリー部、３３……環状隙間、３
４……噴射ノズル、４０……開閉弁、４１……圧
力通路、４２……アクチユエータ、Ｘ……圧力差
補正手段。 FIG. 1 is a vertical cross-sectional view of a main part of a blow-by gas treatment device for a supercharged engine according to a first embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of a supercharged engine according to a second embodiment of the present invention. FIG. 3 is a vertical cross-sectional view of a main part of a blow-by gas treatment device for a supercharged engine according to a third embodiment of the present invention, and FIG. FIG. 5 is an overall system diagram of a conventional blow-by gas treatment device for a conventional supercharged engine, and FIG. 6 is an enlarged vertical cross-sectional view of a portion of FIG. 5. 1...Engine, 2...Intake manifold, 3
...Exhaust manifold, 4...Intake passage, 5...
Exhaust passage, 6... Pressure wave supercharger, 7... Air cleaner, 8... Intercooler, 9... Starting valve, 10... Ejector, 11... Blow-by gas outlet, 12... Blow-by gas inlet,
13...Head cover, 19...Intake outlet, 2
0... Blowby gas discharge passage, 21... Upstream passage, 22... Downstream passage, 23... Pressure introduction passage, 24... Intake bypass passage, 31... Vacant room,
32... Bench lily part, 33... Annular gap, 3
4... Injection nozzle, 40... Opening/closing valve, 41... Pressure passage, 42... Actuator, X... Pressure difference correction means.

Claims

[Scope of utility model registration request]

It has a rotor that is rotatably supported in a case and has a large number of partition walls forming a large number of cells, and connects the exhaust passage and intake passage of the engine through the cells of the rotor to reduce the pressure in the exhaust passage. In a supercharged engine equipped with a pressure wave supercharger that performs supercharging by supplying intake air, a blow-by gas discharge passage is connected to an exhaust passage downstream of the supercharger, and a blow-by gas discharge passage is connected to the blow-by gas discharge passage. a ventilary section provided, a pressure introduction passage that guides pressurized air in the intake passage downstream of the supercharger to the ventilium part, and a pressure introduction passage that leads the pressurized air in the pressure introduction passage to the ventilium part and in the exhaust flow direction. and a pressure difference correcting means for reducing the pressure difference between the pressure introduction passage and the blow-by gas discharge passage downstream of the ventilate section when the supercharging pressure increases. Blow-by gas treatment equipment for fed engines.