JPH03112507U

JPH03112507U -

Info

Publication number: JPH03112507U
Application number: JP2157090U
Authority: JP
Priority date: 1990-03-02
Filing date: 1990-03-02
Publication date: 1991-11-18

Description

[Brief explanation of drawings]

第１図〜第３図は本考案の実施例を示し、第１
図は全体概略構成図、第２図は第１図における新
気導通路のクランク室への開口部の拡大詳細図、
第３図は第２図の下方からの平面視図である。ま
た、第４図〜第８図はそれぞれ変形例を示す第２
図相当図である。７……クランク室、１１……吸気通路、２０…
…新気導入通路、２１……開口部形成部材、３０
……内部ブローバイガス通路、３１……外部ブロ
ーバイガス通路、３４……ＰＣＶバルブ。 Figures 1 to 3 show embodiments of the present invention;
The figure is an overall schematic configuration diagram, and Figure 2 is an enlarged detailed view of the opening of the fresh air passageway to the crank chamber in Figure 1.
FIG. 3 is a plan view from below of FIG. 2. In addition, FIGS. 4 to 8 each show a second example of a modified example.
It is a figure equivalent figure. 7...Crank chamber, 11...Intake passage, 20...
... Fresh air introduction passage, 21 ... Opening forming member, 30
...Internal blow-by gas passage, 31... External blow-by gas passage, 34... PCV valve.

Claims

[Scope of Claim for Utility Model Registration] In a blow-by gas recirculation device for an engine in which a blow-by gas recirculation passage is provided in a cylinder block such that one end opens into the crank chamber and the other end communicates with the intake passage, The opening to the crank chamber has an opening forming member that has a first opening that opens in the opening direction and a second opening that opens in the circumferential direction of the opening, and that is narrowed in the opening direction. A blow-by gas recirculation device for an engine, characterized in that the blow-by gas recirculation device is provided.