JPS63112210U

JPS63112210U -

Info

Publication number: JPS63112210U
Application number: JP435287U
Authority: JP
Priority date: 1987-01-14
Filing date: 1987-01-14
Publication date: 1988-07-19

Description

[Brief explanation of the drawing]

図面は本考案の実施例を示し、第１図はシリン
ダヘツドの平面図、第２図は第１図の―視拡
大断面図、第３図は第１図の―視拡大断面図
、第４図はシリンダヘツドカバーの底面図、第５
図は第２図の―視断面図である。１……シリンダヘツド、２……燃焼室、３……
シリンダヘツドカバー、３ａ，３ｂ……シリンダ
ヘツドカバーの天井板、３ｃ，３ｄ……シリンダ
ヘツドカバーの側面壁、４……吸気ポート、５…
…排気ポート、６……吸気弁、８……排気弁、１
０……点火栓、１１……点火栓挿入筒、１２……
吸気弁用カム軸、１３……排気弁用カム軸、１４
，１５，１６，１７……軸受、１８，２０……揺
動アーム、１９，２１……ピポツト部、２２……
ラツシユアジヤスタ、２３……主給油通路、２８
，２９……軸受用枝給油通路、３０，３１……ピ
ポツト部用枝給油通路、３２……内筒、３５……
環状給油室、３６，３７……ボス部、３８，３９
……カム軸用給油通路、４０，４１……オイル噴
出孔、４２，４３……給油通路。 The drawings show an embodiment of the present invention; FIG. 1 is a plan view of the cylinder head, FIG. 2 is an enlarged cross-sectional view of FIG. 1, FIG. 3 is an enlarged cross-sectional view of FIG. 1, and FIG. The figure is a bottom view of the cylinder head cover.
The figure is a cross-sectional view taken from - in FIG. 2. 1... Cylinder head, 2... Combustion chamber, 3...
Cylinder head cover, 3a, 3b... Ceiling plate of cylinder head cover, 3c, 3d... Side wall of cylinder head cover, 4... Intake port, 5...
...Exhaust port, 6...Intake valve, 8...Exhaust valve, 1
0...Spark plug, 11...Spark plug insertion tube, 12...
Intake valve camshaft, 13...Exhaust valve camshaft, 14
, 15, 16, 17... bearing, 18, 20... rocking arm, 19, 21... pivot part, 22...
Lush adjuster, 23...Main oil supply passage, 28
, 29... Branch oil supply passage for bearing, 30, 31... Branch oil supply passage for pivot part, 32... Inner cylinder, 35...
Annular oil supply chamber, 36, 37...Boss part, 38, 39
...Oil supply passage for camshaft, 40, 41...Oil spout hole, 42, 43...Oil supply passage.

Claims

[Scope of utility model registration request]

Bearings for the intake valve camshaft and the exhaust valve camshaft are provided on the upper surface of the cylinder head and the lower surface of the ceiling plate of the cylinder head cover at appropriate intervals in the direction of the longitudinal centerline of the cylinder head,
In a DOHC type internal combustion engine, a main oil supply passage communicating with each pivot portion for an intake valve swinging arm and each pivot portion for an exhaust valve swinging arm is provided in the direction of the longitudinal center line, in the cylinder head cover. On the lower surface of the ceiling plate, built-up boss portions extending in the direction of the camshafts of both the intake valve camshaft and the exhaust valve camshaft are integrally molded. is provided with a camshaft oil supply passage extending in the direction of the camshaft, and
A camshaft for a DOHC type internal combustion engine, characterized in that oil ejection holes are formed at positions corresponding to the respective cams on both camshafts, and the oil supply passages for both the camshafts are communicated with the main oil supply passage. Refueling device for use.