JPH01102412U

JPH01102412U -

Info

Publication number: JPH01102412U
Application number: JP20068287U
Authority: JP
Priority date: 1987-12-26
Filing date: 1987-12-26
Publication date: 1989-07-11

Description

[Brief explanation of the drawing]

第１図は本考案による一実施例である直列型エ
ンジンの要部を示す概略構成図、第２図は第１図
の―断面図、第３図は第１図のＣ部拡大詳細
図、第４図は本考案による他の実施例を示す要部
の断面図、第５図および第６図は従来エンジンに
おける潤滑経路を示す概略構成図である。１……エンジン、２……クランクケース、２ａ
……クランクケース側軸受、４……クランクシヤ
フト、８……オイルパン、９……主軸キヤツプ、
１０……オイルポンプケース、１１……オイルポ
ンプ、１２ａ……吸込側室、１２ｂ……吐出側室
、１３……オイルストレーナ、１５ａ……吐出側
オイル通路、１５ｂ……オイル通路、１６……オ
イルフイルタ、１７……オイル戻し通路、１８…
…オイルリリーフバルブ、１９……バルブケーシ
ング、２０……弁体、２１……スプリング。 FIG. 1 is a schematic configuration diagram showing the main parts of an in-line engine according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of FIG. 1, and FIG. 3 is an enlarged detailed view of section C in FIG. 1. FIG. 4 is a sectional view of a main part showing another embodiment of the present invention, and FIGS. 5 and 6 are schematic configuration diagrams showing a lubrication path in a conventional engine. 1...Engine, 2...Crankcase, 2a
... Crankcase side bearing, 4 ... Crankshaft, 8 ... Oil pan, 9 ... Main shaft cap,
10...Oil pump case, 11...Oil pump, 12a...Suction side chamber, 12b...Discharge side chamber, 13...Oil strainer, 15a...Discharge side oil passage, 15b...Oil passage, 16...Oil filter , 17...oil return passage, 18...
...Oil relief valve, 19...Valve casing, 20...Valve body, 21...Spring.

Claims

[Scope of utility model registration request]

In the lubricating oil path of the engine, the oil pump side of the crankshaft is supported by a half-split crankcase side bearing and a main shaft cap, and the oil is supplied from the discharge side chamber of the oil pump at the mating surface of the crankcase side bearing and the main shaft cap. The oil passage to be returned to the suction side chamber and the oil return passage to be returned to the suction side chamber are communicated,
An oil relief valve is provided through the mating surface of the crankcase side bearing and the main shaft cap, and an oil strainer is integrally provided through a suction pipe to the main shaft cap communicating with the suction side chamber of the oil pump. An engine oil relief valve featuring: