JPH03123922U

JPH03123922U -

Info

Publication number: JPH03123922U
Application number: JP3383490U
Authority: JP
Priority date: 1990-03-29
Filing date: 1990-03-29
Publication date: 1991-12-17

Description

[Brief explanation of drawings]

第１図はこの考案の実施例を示す正面説明図、
第２図は第１図の−線における断面説明図、
第３図は第１図の−線における拡大断面説明
図、第４図はプランジヤの他の態様を示す第３図
相当図である。１……クランク軸、２……オイルポンプ、３…
…チエーン、４……シリンダブロツク、１１……
クランクスプロケツト、２２……リリーフ通路、
２５……筒状部、２６……本体ケーシング、３１
……引下げ側チエーン、１１１……噛合い部、２
５３，２５３ａ……第２の貫通穴、２５４……傾
斜面。 FIG. 1 is a front explanatory view showing an embodiment of this invention;
FIG. 2 is a cross-sectional explanatory diagram taken along the - line in FIG. 1,
3 is an explanatory enlarged sectional view taken along the line - in FIG. 1, and FIG. 4 is a view corresponding to FIG. 3 showing another aspect of the plunger. 1...Crankshaft, 2...Oil pump, 3...
...Chain, 4...Cylinder block, 11...
Crank sprocket, 22...relief passage,
25...Cylindrical part, 26...Body casing, 31
...Pull-down side chain, 111...Meshing part, 2
53, 253a...second through hole, 254...slanted surface.

Claims

[Claims for Utility Model Registration] 1. A chain that extends over the sprocket of the engine output shaft and transmits the rotational force from the engine output shaft, and a chain that is driven by the rotational force from the engine output shaft and supplies lubricating oil to the cylinder block. In the engine lubricating device, the oil pump has a relief passage that relieves the oil when the pressure is high, and the oil pump has a through hole that communicates with the relief passage. 1. A lubricating device for an engine, wherein the through hole is arranged so that the relief oil is discharged toward a meshing portion between the chain and the sprocket. 2 The cylindrical part in which the relief passage of the oil pump is formed is the meshing part between the chain and the sprocket, and protrudes from the oil pump body so as to face the chain on the side that is pulled down by the sprocket. The lubricating device for an engine according to claim 1, wherein the cylindrical portion forms an inclined surface that is inclined diagonally downward with respect to the direction in which the chain is pulled down. .