JPS6075613U - oil supply device - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図、第２図は従来のオイル供給装置の概略系統図、
第３図は同装置において、エンジン回転数とオイルギヤ
ラリ油圧との関係を示すグラフ、第４図は本考案に係る
オイル供給装置の一実施ｉを示す概略系統図、第５図は
同オイルポンプのエンジン低速時における作動状況を示
す拡大縦断面図、第６図は同側断面図、第７図は第５図
のオイルポンプ部のエンジン高速時における作動状況を
示す縦断面図、第８図は本考案の他の実施例を示す側断
面図である。 図中、１はオイルストレーナ、２はオイルギヤラリ、３
はメインギアポンプ、３　ａ、　　３　ｂはギヤ、４は
サブギアポンプ、５はオイルフィルタ、６はオイルクー
ラ、７は吐出側流路、８は戻り流路、９は切換バルブ、
１０は油圧導入管、１２゜３５は吸込口、１３．３８は
吐出口、１５は駆動軸、２０はボール、２２は流体室、
２４は弁体、３１．３２，３３はギア、４１はボール、
４３は弁体である。Figures 1 and 2 are schematic diagrams of conventional oil supply equipment;
Fig. 3 is a graph showing the relationship between engine speed and oil gear oil pressure in the same device, Fig. 4 is a schematic system diagram showing one embodiment of the oil supply device according to the present invention, and Fig. 5 is a graph showing the relationship between the engine speed and the oil gear oil pressure. 6 is a sectional view of the same side, FIG. 7 is a vertical sectional view showing the operating condition of the oil pump in FIG. 5 when the engine is at high speed, and FIG. FIG. 3 is a side sectional view showing another embodiment of the present invention. In the diagram, 1 is the oil strainer, 2 is the oil gear, and 3
are main gear pumps, 3 a, 3 b are gears, 4 is a sub gear pump, 5 is an oil filter, 6 is an oil cooler, 7 is a discharge side flow path, 8 is a return flow path, 9 is a switching valve,
10 is a hydraulic pressure introduction pipe, 12°35 is a suction port, 13.38 is a discharge port, 15 is a drive shaft, 20 is a ball, 22 is a fluid chamber,
24 is a valve body, 31, 32, 33 are gears, 41 is a ball,
43 is a valve body.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）エンジン各部に潤滑油を循環供給する循環流路に
オイルポンプを並列に設け、一方のオイル゛　ポンプの
吐出側流路より切換バルブを介して戻り流路を設け、エ
ンジン側の循環流路の油圧を感知して上記切換バルブを
切換作動する作動手段を設けたことを特徴とするオイル
供給装置。(1) An oil pump is installed in parallel with the circulation channel that circulates lubricating oil to each part of the engine, and a return channel is provided from the discharge side channel of one oil pump via a switching valve to control the circulation flow on the engine side. An oil supply device characterized in that it is provided with an actuating means for sensing oil pressure in the oil passage and switching the switching valve. （２）上記オイルポンプが同一の駆動軸上に配設された
ギアポンプからなることを特徴とするオイル供給装置。(2) An oil supply device characterized in that the oil pump is a gear pump disposed on the same drive shaft.