JPS5913621U

JPS5913621U - Blow-by gas reduction device for internal combustion engine

Info

Publication number: JPS5913621U
Application number: JP10700782U
Authority: JP
Inventors: 正佐藤
Original assignee: 日産ディーゼル工業株式会社
Priority date: 1982-07-16
Filing date: 1982-07-16
Publication date: 1984-01-27
Also published as: JPS6215448Y2

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 drawings]

第１図は本考案を実施した内燃機関の一部を平面で示す
縦断面図、第２図１．■は本考案の実施例で使用される
圧力調整弁の断面図である。１・・・シリンダブロック、２・・・シリンダ、３・・
・コネクティングロッド、４・・・クランク軸、５−・
・シリンダヘッド、６・・・ブツシュロッド、７・・・
ロッカーアーム、８・・・吸気弁、９・・・戻しばね、
１０・・・ロッカーカバー、１１・・・吸気管、１２・
・・エアクリーナ、１３・・・クランクケース、１４・
・・オイルパン、１５・・・流路、１６・・・ブリーザ
ケース、１７・・・孔、１８・・・圧力調整弁、１９・
・・ダクト、２０・・・オイル分離器、２１・・・ダク
ト、２２・・・弁本体、２３・・・ブローバイガスの流
入ポート、２４・・・流出ポート、２５・・・弁カバー
、２６・・・シール弁、２７・・・コイルハネ、２８・
・・オイル分離室、２９・・・小孔、３０・・・ニップ
　　　、ルFIG. 1 is a longitudinal sectional view showing a part of an internal combustion engine in which the present invention is implemented, and FIG. (2) is a sectional view of a pressure regulating valve used in an embodiment of the present invention. 1...Cylinder block, 2...Cylinder, 3...
・Connecting rod, 4...Crankshaft, 5-・
・Cylinder head, 6... Butsch rod, 7...
Rocker arm, 8...Intake valve, 9...Return spring,
10...Rocker cover, 11...Intake pipe, 12.
・・Air cleaner, 13・・Crank case, 14・
... Oil pan, 15 ... Channel, 16 ... Breather case, 17 ... Hole, 18 ... Pressure adjustment valve, 19.
... Duct, 20 ... Oil separator, 21 ... Duct, 22 ... Valve body, 23 ... Blow-by gas inflow port, 24 ... Outflow port, 25 ... Valve cover, 26 ...Seal valve, 27...Coil spring, 28.
...Oil separation chamber, 29...Small hole, 30...Nip, le

Claims

[Scope of utility model registration request]

In a blowby gas reduction device for an internal combustion engine, the blowby gas accumulated in the crankcase or rocker cover is returned to the intake pipe via a pressure regulating valve that adjusts the pressure in the crankcase, and then guided to the combustion chamber through the intake pipe. ,
The pressure regulating valve includes an inflow port and an outflow port for blow-by gas, and the inflow port and the outflow port are communicated with each other by a seal valve that opens and closes based on fluctuations in the pressure inside the crankcase. An oil separation chamber is provided between the inflow port and the outflow port to reduce the flow rate of the blowby gas and separate the oil component in the blowby gas, and a small hole is provided in the seat of the separation chamber to discharge the oil into the engine. A blow-by gas reduction device for an internal combustion engine, characterized by: