JPS63181U

JPS63181U -

Info

Publication number: JPS63181U
Application number: JP9391886U
Authority: JP
Priority date: 1986-06-19
Filing date: 1986-06-19
Publication date: 1988-01-05

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例にかかる潤滑油ポン
プの吸入室及び吐出室が形成されているギヤケー
スカバーを内側から見た立面図、第２図はその潤
滑ポンプを備えるエンジンの側面図、第３図は第
１図のＡ―Ａ円弧線に沿う断面図、第４図は第３
図に相当する従来例の要部の断面図である。１……エンジン、２……ギヤケース（固定壁）
、５……トロコイド式潤滑油ポンプ、９……ポン
プ室、１０……吸入室、１１……吐出室、１５…
…底面、１５ａ……下流側底面部分。 FIG. 1 is an elevational view from inside of a gear case cover in which the suction and discharge chambers of a lubricating oil pump according to an embodiment of the present invention are formed, and FIG. 2 is a side view of an engine equipped with the lubricating pump. , Figure 3 is a sectional view taken along the arc line A--A in Figure 1, and Figure 4 is a cross-sectional view along the arc line AA in Figure 1.
FIG. 2 is a sectional view of a main part of a conventional example corresponding to the figure. 1...Engine, 2...Gear case (fixed wall)
, 5... Trochoid type lubricating oil pump, 9... Pump chamber, 10... Suction chamber, 11... Discharge chamber, 15...
...bottom surface, 15a...downstream bottom surface portion.

Claims

[Scope of utility model registration request]

A suction chamber 10 and a discharge chamber 11 of a trochoidal lubricating oil pump 5 are formed in a fixed wall 2 of an engine 1.
In the engine trochoid type lubricating oil pump,
A trochoidal lubricating oil pump for an engine, characterized in that at least the downstream side bottom surface portion 15a of the bottom surface 15 of the suction chamber 10 of the pump 5 is formed such that its depth becomes shallower as it approaches the downstream end.