JPH01111184U - - Google Patents
Info
- Publication number
- JPH01111184U JPH01111184U JP653088U JP653088U JPH01111184U JP H01111184 U JPH01111184 U JP H01111184U JP 653088 U JP653088 U JP 653088U JP 653088 U JP653088 U JP 653088U JP H01111184 U JPH01111184 U JP H01111184U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- swash plate
- cylinder block
- pump
- drive shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000010720 hydraulic oil Substances 0.000 claims 2
- 239000003921 oil Substances 0.000 claims 1
- 238000005086 pumping Methods 0.000 claims 1
Landscapes
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Description
第１図は本考案実施例の油ピストンポンプを示
す縦断面図である。第２図は本考案実施例の油ピ
ストンポンプの要部を示す縦断面図である。第３
図は第２図における軽量固定部３２のみを示す縦
断面図である。第４図は従来の油ピストンポンプ
を示す縦断面図である。
１……ハウジング、１ａ……一端ハウジング、
１ｂ……中間ハウジング、１ｃ……他端ハウジン
グ、１１１……吸入ポート、１２１……吐出ポー
ト、１１……吸入通路、１２……吐出通路、１０
……機能室、２……シリンダブロツク、２０……
駆動軸、２１……シリンダボア、３……複数個の
ピストン、３ａ……ピストンポンプの一端、３１
……有底筒状のピストン本体、３１０……雌螺子
、３１１ａ……細孔、３２……軽量固定部、３２
０……雄螺子、３２１……貫通孔、４……斜板。
FIG. 1 is a longitudinal sectional view showing an oil piston pump according to an embodiment of the present invention. FIG. 2 is a longitudinal sectional view showing the main parts of the oil piston pump according to the embodiment of the present invention. Third
The figure is a longitudinal sectional view showing only the lightweight fixing part 32 in FIG. 2. FIG. 4 is a longitudinal sectional view showing a conventional oil piston pump. 1... Housing, 1a... One end housing,
1b...middle housing, 1c...other end housing, 111...suction port, 121...discharge port, 11...suction passage, 12...discharge passage, 10
...Function room, 2...Cylinder block, 20...
Drive shaft, 21...Cylinder bore, 3...Plural pistons, 3a...One end of piston pump, 31
...Bottomed cylindrical piston body, 310...Female screw, 311a...Small hole, 32...Lightweight fixing part, 32
0...Male screw, 321...Through hole, 4...Swash plate.
Claims (1)
作動油を導入する吸入通路と、該吐出ポートより
吐出された作動油を導出する吐出通路と、機能室
とをもつポンプハウジングと、 該ポンプハウジングに回転自在に軸支された駆
動軸と、該機能室に配設され複数個のシリンダボ
アとをもつシリンダブロツクと、 該シリンダボアの各々に往復摺動自在に収容さ
れた複数個のピストンと、 該各ピストンの一端を摺接させる斜面をもつ斜
板とからなり、 該シリンダブロツクあるいは該斜板のいずれか
一方を該駆動軸により回転させることにより該各
ピストンを往復運動させてポンプ作用を行う油ピ
ストンポンプにおいて、 該各ピストンは一端有底筒状のピストン本体と
該ピストン本体の内部に固定された軽量固定部と
からなることを特徴とする油ピストンポンプ。[Claims for Utility Model Registration] A pump having a suction port, a discharge port, a suction passage for introducing hydraulic oil into the suction port, a discharge passage for leading out hydraulic oil discharged from the discharge port, and a functional chamber. a housing; a drive shaft rotatably supported by the pump housing; a cylinder block disposed in the functional chamber and having a plurality of cylinder bores; The cylinder block or the swash plate is composed of two pistons and a swash plate having an inclined surface that slides one end of each piston, and each piston is caused to reciprocate by rotating either the cylinder block or the swash plate by the drive shaft. An oil piston pump that performs a pumping action, characterized in that each piston consists of a cylindrical piston body with one end and a lightweight fixed part fixed inside the piston body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP653088U JPH01111184U (en) | 1988-01-21 | 1988-01-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP653088U JPH01111184U (en) | 1988-01-21 | 1988-01-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01111184U true JPH01111184U (en) | 1989-07-26 |
Family
ID=31210789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP653088U Pending JPH01111184U (en) | 1988-01-21 | 1988-01-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01111184U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0493772U (en) * | 1990-12-27 | 1992-08-14 | ||
| JP2015059496A (en) * | 2013-09-18 | 2015-03-30 | アイシン精機株式会社 | Rotary swash plate plunger pump |
-
1988
- 1988-01-21 JP JP653088U patent/JPH01111184U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0493772U (en) * | 1990-12-27 | 1992-08-14 | ||
| JP2015059496A (en) * | 2013-09-18 | 2015-03-30 | アイシン精機株式会社 | Rotary swash plate plunger pump |
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