JPS634387U

JPS634387U -

Info

Publication number: JPS634387U
Application number: JP9757086U
Authority: JP
Priority date: 1986-06-27
Filing date: 1986-06-27
Publication date: 1988-01-12

Description

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

第１図および第２図はこの考案に係るギヤオイ
ルポンプの一実施例を示しており、第１図は同ポ
ンプケーシングのボデイの下面図、第２図は同ポ
ンプの従動側歯車の中心から切断した第１図に示
す―断面図である。１０…駆動側歯車、１２…従動側歯車、１４…
ポンプケーシング、１６，１８…支持軸、２２…
低圧室、２６…高圧室、３０…第１の油溝、３２
…第２の油溝。 Figures 1 and 2 show an embodiment of the gear oil pump according to this invention. Figure 1 is a bottom view of the body of the pump casing, and Figure 2 is a cut from the center of the driven gear of the pump. FIG. 10... Drive side gear, 12... Driven side gear, 14...
Pump casing, 16, 18...support shaft, 22...
Low pressure chamber, 26... High pressure chamber, 30... First oil groove, 32
...Second oil groove.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

相互に噛合する駆動側および従動側の対をなす
歯車と、該歯車のそれぞれの軸孔内に挿入された
支持軸を保持するポンプケーシングとを備え、且
つ、該従動側の支持軸が該ポンプケーシングに固
定され、この支持軸に対して従動側歯車が摺動回
転する外接型ギヤオイルポンプにおいて、該ポン
プケーシング内に該従動側歯車の軸孔と高圧室と
を連通する第１の油溝と、該従動側歯車の軸孔と
低圧室とを連通する第２の油溝とを設けるととも
に、該第１油溝を該第２の油溝よりも下方に位置
させたことを特徴とするギヤオイルポンプ。 The pump includes a pair of gears on a drive side and a driven side that mesh with each other, and a pump casing that holds a support shaft inserted into a shaft hole of each of the gears, and the support shaft on the driven side is connected to the pump. In an external gear oil pump that is fixed to a casing and in which a driven gear slides and rotates with respect to the support shaft, a first oil groove that communicates a shaft hole of the driven gear and a high pressure chamber in the pump casing; , a gear oil characterized in that a second oil groove is provided that communicates the shaft hole of the driven gear with a low pressure chamber, and the first oil groove is located below the second oil groove. pump.