JPH041609U

JPH041609U -

Info

Publication number: JPH041609U
Application number: JP4196990U
Authority: JP
Priority date: 1990-04-19
Filing date: 1990-04-19
Publication date: 1992-01-08

Description

[Brief explanation of drawings]

第１図はこの考案の実施例を示す断面説明図、
第２図は第１図の−線における拡大断面説明
図、第３図は第１図の−線における断面説明
図、第４図は第１図の−線における拡大断面
説明図、第５図は従来のオイルポンプを示す断面
説明図である。１……本体ケーシング、４……リリーフ手段、
１４……吐出口、１５１〜１５３……吐出側通路
、１６……リリーフ部取付穴、４１……リリーフ
部本体、４２……プランジヤ、４３……コイルス
プリング、４１１……第１の穴、４１２……第２
の穴、４１４……排出口、４１５……取付部。 FIG. 1 is a cross-sectional explanatory diagram showing an embodiment of this invention.
2 is an enlarged cross-sectional explanatory view taken along the - line in FIG. 1, FIG. 3 is an explanatory cross-sectional view taken along the - line in FIG. 1, FIG. 4 is an enlarged cross-sectional explanatory view taken along the - line in FIG. 1, and FIG. is a cross-sectional explanatory diagram showing a conventional oil pump. 1... Body casing, 4... Relief means,
14...Discharge port, 151-153...Discharge side passage, 16...Relief part mounting hole, 41...Relief part main body, 42...Plunger, 43...Coil spring, 411...First hole, 412 ...Second
hole, 414...discharge port, 415...mounting part.

Claims

[Claims for Utility Model Registration] 1. An oil pump in which a discharge side passage is formed inside the main body casing, and a relief means is provided for discharging oil in the discharge side passage to a part other than the discharge side according to the pressure thereof. In the above, the relief means includes a relief part main body having a relief passage formed therein, and an on-off valve part provided in the relief passage, and the relief part main body is formed separately from the main body casing, A mounting hole opening to the discharge side passage is formed on the outer surface of the main body casing, and a mounting part opening at one end of the relief passage is formed in the relief part main body, and the mounting part and the mounting hole are mutually connected to each other. An oil pump characterized in that, by being coupled, the relief section main body is fixed to the main body casing in a state where the relief passage and the discharge side passage communicate with each other. 2. The oil pump according to claim 1, wherein the mounting hole is formed on the oil pan side of the main casing.