JPS5824409U

JPS5824409U - Blow-by gas recirculation device for internal combustion engine

Info

Publication number: JPS5824409U
Application number: JP11808281U
Authority: JP
Inventors: 星　満
Original assignee: 富士重工業株式会社
Priority date: 1981-08-07
Filing date: 1981-08-07
Publication date: 1983-02-16
Also published as: JPS6211301Y2

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図は本考案によるブローバイガス還流装置の一実施
例を示す構成図、第２図および第３図は同弁機構部分を
示す常時およびオイル吹出し時の縦断面図、第４図は第
２図の■二■線に沿う断面図である。１・・・エンジン本体、２・・・シリンダ、３・・・ピ
ストン、４・・・コネクティングロッド、５・・・クラ
ンクケース、５ａ・・・オイルパン、６・・・クランク
軸、７・・・動弁機構、８・・・シリンダヘッドカバー
、９・・・ブローバイガス通路、１０・・・オイル戻し
通路、１１゜、１２・・・第１第２ブローバイガス出口
、１３・・・弁機構、１４．　１５．　１６・・・管路
、１７・・・エアクリーナ、１８・・・′バルブ本体、
１９・・・バルブスプール、１９ａ・・・上端部、１９
ｂ・・・下端大径部、２０゜２１・・・第１、第２ガス
入口、２３ａ、２３ｂ・・・第１ガス通路、２４・・・
第２ガス通路、２５・・・気化器、′２６・・・吸入管
。Fig. 1 is a block diagram showing an embodiment of the blow-by gas recirculation device according to the present invention, Figs. 2 and 3 are vertical cross-sectional views showing the valve mechanism part at normal time and when oil is being blown out, and Fig. 4 is a block diagram showing an embodiment of the blow-by gas recirculation device according to the present invention. It is a sectional view taken along the line ■2■ in the figure. DESCRIPTION OF SYMBOLS 1... Engine body, 2... Cylinder, 3... Piston, 4... Connecting rod, 5... Crank case, 5a... Oil pan, 6... Crankshaft, 7... - Valve mechanism, 8... Cylinder head cover, 9... Blowby gas passage, 10... Oil return passage, 11°, 12... First and second blowby gas outlet, 13... Valve mechanism, 14. 15. 16... Pipeline, 17... Air cleaner, 18...' Valve body,
19... Valve spool, 19a... Upper end, 19
b... Lower end large diameter part, 20° 21... First and second gas inlets, 23a, 23b... First gas passage, 24...
Second gas passage, 25... vaporizer, '26... suction pipe.

Claims

[Scope of utility model registration request]

A first blow-by gas outlet is opened in the cylinder head cover that communicates with the crankcase at the bottom of the engine body, and a second blow-by gas outlet is opened in a part of the engine body other than the cylinder head cover, and the first and second blow-by gas outlets are connected to the upper part of the engine body. The first and second valve mechanisms installed in
a gas inlet, a gas outlet of the valve mechanism communicates with the intake side of the internal combustion engine, and a first,
Blow-by gas recirculation for an internal combustion engine, characterized in that a valve spool is provided that opens one side of the second gas inlet and closes the other, and the valve spool closes the first gas inlet only when oil is blown to the first gas inlet. Device.