JPS6441607U

JPS6441607U -

Info

Publication number: JPS6441607U
Application number: JP13734087U
Authority: JP
Priority date: 1987-09-07
Filing date: 1987-09-07
Publication date: 1989-03-13

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例である内燃機関の潤
滑用ギヤポンプを示す縦断面図、第２図はその作
用を説明するための線図である。第３図は本考案
の他の実施例を示す縦断面図、第４図は第３図の
−線に沿う側面断面図である。１……ケース、２……ドライブギヤ、３……駆
動軸、４……伝動ギヤ、５……ドリブンギヤ、６
……支軸、７……吸入口、８……吐出口、９……
オイルパン、１０……ストレナ、１１……給油路
、１２……送油路、１３……クーラー、１４……
フイルタ、１５……被潤滑部、１６……レギユレ
ータバルブ、２０……シリンダ室、２１……スプ
リング、２２……ピストン、２３……環状溝（制
御ポート）、２４……連通孔、２５……第１ポー
ト、２６……連絡路、２７……第２ポート、２８
……放出路、２９……第３ポート、３０……吐出
圧検出路。 FIG. 1 is a longitudinal sectional view showing a gear pump for lubricating an internal combustion engine, which is an embodiment of the present invention, and FIG. 2 is a diagram for explaining its operation. FIG. 3 is a longitudinal sectional view showing another embodiment of the present invention, and FIG. 4 is a side sectional view taken along the line - in FIG. 1... Case, 2... Drive gear, 3... Drive shaft, 4... Transmission gear, 5... Driven gear, 6
...Spindle, 7...Suction port, 8...Discharge port, 9...
Oil pan, 10... Strainer, 11... Oil supply path, 12... Oil feed path, 13... Cooler, 14...
Filter, 15... Lubricated part, 16... Regulator valve, 20... Cylinder chamber, 21... Spring, 22... Piston, 23... Annular groove (control port), 24... Communication hole, 25 ...First port, 26...Connection path, 27...Second port, 28
...Discharge path, 29...Third port, 30...Discharge pressure detection path.

Claims

[Scope of Claim for Utility Model Registration] (1) In a gear pump for lubricating an internal combustion engine in which a drive gear and a driven gear meshed with the drive gear are disposed within the case, a cylinder disposed within the pump body. a first port opened in the cylinder chamber and connected to the discharge port of the pump; a first port opened in the cylinder chamber and connected to the pump external port; the second to which the discharge channel is connected;
and a third port opened in the cylinder chamber and connected to a discharge pressure detection path of the pump, and the piston responds to the pressure of the third port to detect the first port and the second port. A gear pump for lubricating an internal combustion engine, characterized in that it is configured to open and close communication with the gear pump. (2) The gear pump for lubricating an internal combustion engine according to claim 1, wherein the cylinder chamber is provided inside the driven gear shaft. (3) The gear pump for lubricating an internal combustion engine according to claim 1, wherein the cylinder chamber is arranged inside the case wall in a direction intersecting the gear axis direction.