JPS63113705U

JPS63113705U -

Info

Publication number: JPS63113705U
Application number: JP572787U
Authority: JP
Priority date: 1987-01-19
Filing date: 1987-01-19
Publication date: 1988-07-22

Description

[Brief explanation of the drawing]

図面は本考案の一実施例を示すものであり、第
１図は機関本体の全体側面図、第２図は第１図の
ー線矢視拡大図、第３図は第２図のー線
拡大断面図、第４図は第２図のー線に沿うシ
リンダヘツドの拡大断面図、第５図は第２図の
ー線拡大断面図である。８……吸気弁、１０……排気弁、２０，２１…
…動弁機構、２２……動弁室、８６……油溜り、
８７……オイルポンプ、８８……吸入路、８８ａ
……吸入口、Ｃ１〜Ｃ４……シリンダ、ＣＢ……
シリンダブロツク、ＣＣ……クランクケース、Ｃ
Ｈ……シリンダヘツド、ＨＣ……ヘツドカバー、
ＯＰ……オイルパン、Ｐ……ピストン。 The drawings show one embodiment of the present invention, and FIG. 1 is an overall side view of the engine body, FIG. 2 is an enlarged view taken along the line - in FIG. FIG. 4 is an enlarged sectional view of the cylinder head taken along line - in FIG. 2, and FIG. 5 is an enlarged sectional view taken along line - in FIG. 8...Intake valve, 10...Exhaust valve, 20, 21...
...Valve train mechanism, 22...Valve train chamber, 86...Oil sump,
87...Oil pump, 88...Suction path, 88a
...Intake port, C1-C4...Cylinder, CB...
Cylinder block, CC...Crank case, C
H...Cylinder head, HC...Head cover,
OP...oil pan, P...piston.

Claims

[Scope of utility model registration request]

A cylinder head is connected to one end of a cylinder block in which a plurality of cylinders with pistons slidably connected in a substantially horizontal direction are arranged in series, and an oil pan is fixed to the lower part of a crankcase formed at the other end of the cylinder block. In a multi-cylinder internal combustion engine, the valve chamber, which is defined by a cylinder head and a head cover connected to the cylinder head, houses a valve mechanism for opening and closing the intake valve and exhaust valve corresponding to each cylinder. In the oil return device, the lower inner surface of the cylinder head is formed to be inclined downward toward the center in the cylinder arrangement direction to form an oil pool in the center in the cylinder arrangement direction, and to return the oil in the oil pool to the oil pan. An oil return device for a multi-cylinder internal combustion engine, characterized in that a suction port of a suction passage communicating with an oil pump leading to an oil reservoir is opened to an oil reservoir.