JPH0228582U

JPH0228582U -

Info

Publication number: JPH0228582U
Application number: JP10780488U
Authority: JP
Priority date: 1988-08-16
Filing date: 1988-08-16
Publication date: 1990-02-23

Description

[Brief explanation of drawings]

第１図は本考案第１実施例の固定シリンダ型ラ
ジアルピストンポンプの要部断面図、第２図は第
１実施例の固定シリンダ型ラジアルピストンポン
プのデリバリ弁を示す断面図、第３図は実施例の
固定シリンダ型ラジアルピストンポンプの全体断
面図、第４図は吐出口の目印としてマークを刻ん
だ弁ケースを示す斜視図、第５図は吐出口の目印
として切り欠きを刻んだ弁ケースを示す斜視図、
第６図は圧入治具を用いて吐出口の位置合わせし
ながらの弁ケース圧入状態図、第７図は第２実施
例の固定シリンダ型ラジアルピストンポンプの要
部断面図、第８図はの固定シリンダ型ラジアルピ
ストンポンプの弁ケースを示す斜視図、第９図は
第２実施例の他の例を示す弁ケース断面図、第１
０図は従来の固定シリンダ型ラジアルピストンポ
ンプの要部断面図、第１１図は従来の固定シリン
ダ型ラジアルピストンポンプのデリバリ弁を示す
断面図である。Ａ……固定シリンダ型ラジアルピストンポンプ
、１……ポンプケーシング、２……駆動軸、７…
…偏心カム、１０……固定シリンダ、１１……ピ
ストン、１６……吐出ポート、１７……吐出流路
、１８……デリバリ弁、１８ａ……弁ケース、１
８ｅ……吐出口、１９……吐出溝、２０……出口
ポート。 Fig. 1 is a sectional view of essential parts of a fixed cylinder type radial piston pump according to the first embodiment of the present invention, Fig. 2 is a sectional view showing a delivery valve of the fixed cylinder type radial piston pump according to the first embodiment, and Fig. 3 is An overall cross-sectional view of a fixed cylinder type radial piston pump according to an embodiment, FIG. 4 is a perspective view showing a valve case with a mark carved as a mark for the discharge port, and FIG. 5 is a valve case with a notch carved as a mark for the discharge port. A perspective view showing
Fig. 6 is a diagram showing how the valve case is press-fitted while aligning the discharge port using a press-fitting jig, Fig. 7 is a sectional view of the main parts of the fixed cylinder type radial piston pump of the second embodiment, and Fig. 8 is the FIG. 9 is a perspective view showing a valve case of a fixed cylinder type radial piston pump; FIG. 9 is a cross-sectional view of the valve case showing another example of the second embodiment;
0 is a sectional view of a main part of a conventional fixed cylinder type radial piston pump, and FIG. 11 is a sectional view showing a delivery valve of a conventional fixed cylinder type radial piston pump. A... Fixed cylinder type radial piston pump, 1... Pump casing, 2... Drive shaft, 7...
...Eccentric cam, 10...Fixed cylinder, 11...Piston, 16...Discharge port, 17...Discharge flow path, 18...Delivery valve, 18a...Valve case, 1
8e...discharge port, 19...discharge groove, 20...exit port.

Claims

[Claims for Utility Model Registration] (1) Converting rotational driving force into radial reciprocating motion of the pistons, sucking fluid from the suction ports of each piston, and pressurized fluid from the discharge ports of each piston. A radial piston pump configured to discharge from an outlet port via a delivery valve provided for each piston and a discharge groove formed in a circumferential direction to collect fluid discharged from the delivery valve, the delivery valve. A radial piston pump characterized in that a discharge port opened in the valve case is opened only in the circumferential direction, which is the flow line direction of the discharge groove. (2) The radial piston pump according to claim 1, wherein the discharge port of the delivery valve is opened in only one direction so as not to oppose the discharge port of another delivery valve adjacent in the circumferential direction.