JPH01148011U

JPH01148011U -

Info

Publication number: JPH01148011U
Application number: JP4377288U
Authority: JP
Priority date: 1988-03-31
Filing date: 1988-03-31
Publication date: 1989-10-13

Description

[Brief explanation of the drawing]

第１〜５図はこの考案の実施例を示し、第１図
は水平に配置された内燃機関の概略断面図、第２
図はブリーザプレートの平面図、第３図はシリン
ダヘツドカバー内のブリーザプレートの装着状態
を示す要部拡大断面図、第４図は第２図の―
線によるオイル落下溝部の縦拡大断面図、第５図
は第２図の―線によるオイル落下溝部の横拡
大断面図である。第６，７図はこの考案の他の実
施例を夫々示し、第６図は傾斜させて配置された
内燃機関のシリンダヘツドカバー内のブリーザプ
レートの装着状態を示す要部拡大断面図、第７図
はオイル落下溝部の横拡大断面図である。第８〜
１０図はこの考案の従来技術を示し、第８図はブ
リーザプレートの平面図、第９図は水平に配置さ
れた内燃機関の要部拡大断面図、第１０図は傾斜
させて配置された内燃機関の要部拡大断面図であ
る。図において、２は内燃機関、４はシリンダヘツ
ド部、６は吸気系、８は排気系、１０は燃焼室、
１２はピストン、１４はクランク室、１６はシリ
ンダヘツドカバー、１８はブリーザプレート、２
０は分離室、２２はオイル落下用壁面、２４は第
１取付け孔部、２６は第２取付け孔部、２８はオ
イル落下溝部、３０はカム、３２はブリーザパイ
プ、３４はクランク軸、３６はブローバイガス通
路である。 1 to 5 show an embodiment of this invention, in which FIG. 1 is a schematic sectional view of a horizontally arranged internal combustion engine, and FIG.
The figure is a plan view of the breather plate, Figure 3 is an enlarged cross-sectional view of the main part showing how the breather plate is installed inside the cylinder head cover, and Figure 4 is the same as in Figure 2.
FIG. 5 is an enlarged horizontal sectional view of the oil drop groove section taken along the line ``--'' in FIG. 2; 6 and 7 show other embodiments of this invention, respectively. FIG. 6 is an enlarged cross-sectional view of a main part showing a state in which a breather plate is installed in an inclined cylinder head cover of an internal combustion engine, and FIG. The figure is an enlarged horizontal sectional view of the oil drop groove. 8th~
Fig. 10 shows the prior art of this invention, Fig. 8 is a plan view of a breather plate, Fig. 9 is an enlarged sectional view of main parts of an internal combustion engine arranged horizontally, and Fig. 10 is an internal combustion engine arranged at an angle. It is an enlarged sectional view of the main part of the engine. In the figure, 2 is an internal combustion engine, 4 is a cylinder head, 6 is an intake system, 8 is an exhaust system, 10 is a combustion chamber,
12 is a piston, 14 is a crank chamber, 16 is a cylinder head cover, 18 is a breather plate, 2
0 is a separation chamber, 22 is an oil drop wall, 24 is a first mounting hole, 26 is a second mounting hole, 28 is an oil drop groove, 30 is a cam, 32 is a breather pipe, 34 is a crankshaft, and 36 is a This is a blow-by gas passage.

Claims

[Scope of utility model registration request]

In a blow-by gas separation device formed in a cylinder head cover of an internal combustion engine, a breather plate is installed in the cylinder head cover, and a separation chamber is formed by the upper surface of the breather plate and the inner surface of the cylinder head cover, and the breather plate A blow-by gas separation device characterized in that an oil drop groove portion whose cross-sectional area gradually increases toward one end of the downstream side of the breather plate is formed.