JPH02127785U - - Google Patents
Info
- Publication number
- JPH02127785U JPH02127785U JP3667989U JP3667989U JPH02127785U JP H02127785 U JPH02127785 U JP H02127785U JP 3667989 U JP3667989 U JP 3667989U JP 3667989 U JP3667989 U JP 3667989U JP H02127785 U JPH02127785 U JP H02127785U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- camshaft
- radial
- housing
- bottom wall
- 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.)
- Granted
Links
- 239000012530 fluid Substances 0.000 claims 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Reciprocating Pumps (AREA)
Description
第１図は本考案によるラジアルピストンポンプ
の一実施例を示す縦断側面図、第２図は同要部縦
断正面図、第３図は同要部拡大断面図、第４図は
本考案の変形例を示す要部拡大断面図、第５図は
本考案によるラジアルピストンポンプによつて得
られるカム軸回転数と吐出流量の特性線図、第６
図は従来のラジアルピストンポンプによつて得ら
れるカム軸回転数と吐出流量の特性線図である。
符号の説明、１０……ハウジング、１０ａ……
内周壁、１１……シリンダ、１２……ピストン、
１２ａ……底壁、１２ｂ……連通孔、１２ｃ……
外周側開口、１３……カム軸、１３ａ……突起、
１４……スプリング、Ｒ１……吸入室、Ｒ２……
吐出室、Ｌ……ピストンの中心軸線。
Fig. 1 is a longitudinal side view showing an embodiment of the radial piston pump according to the present invention, Fig. 2 is a longitudinal sectional front view of the same main part, Fig. 3 is an enlarged sectional view of the main part, and Fig. 4 is a modification of the present invention. FIG. 5 is an enlarged cross-sectional view of the main part showing an example. FIG.
The figure is a characteristic diagram of camshaft rotation speed and discharge flow rate obtained by a conventional radial piston pump. Explanation of symbols, 10...Housing, 10a...
Inner peripheral wall, 11... cylinder, 12... piston,
12a...Bottom wall, 12b...Communication hole, 12c...
Outer peripheral side opening, 13... camshaft, 13a... protrusion,
14... Spring, R1... Suction chamber, R2...
Discharge chamber, L... Central axis of the piston.
Claims (1)
を内周側としてカツプ状のピストンを往復動可能
に設け、このピストンをその底壁側に設けたカム
軸と同カム軸側へ付勢するスプリングにより往復
動させるようにして、前記ハウジングの内周壁と
前記カム軸間に形成した吸入室から前記ピストン
の周壁に設けた連通孔を通して流体を吸入し、か
つ前記ピストンの外周側開口から前記ハウジング
に設けた吐出室に流体を吐出するようにしてなる
ラジアルピストンポンプにおいて、前記ピストン
の中心軸線から所定量偏位した位置にて同ピスト
ンの底壁に接触する突起を前記カム軸の外周に環
状に形成したことを特徴とするラジアルピストン
ポンプ。 A cup-shaped piston is provided in a radial cylinder provided in the housing so as to be able to reciprocate with the bottom wall on the inner circumferential side, and this piston is provided on the bottom wall side of the camshaft and a spring that biases the piston toward the same camshaft side. The fluid is reciprocated by a suction chamber formed between the inner circumferential wall of the housing and the camshaft through a communication hole provided in the circumferential wall of the piston, and the fluid is sucked into the housing from the outer circumferential opening of the piston. In a radial piston pump configured to discharge fluid into a discharge chamber provided in the radial piston pump, a protrusion that contacts the bottom wall of the piston at a position offset by a predetermined amount from the central axis of the piston is annularly formed on the outer periphery of the camshaft. A radial piston pump characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3667989U JP2509077Y2 (en) | 1989-03-30 | 1989-03-30 | Radial piston pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3667989U JP2509077Y2 (en) | 1989-03-30 | 1989-03-30 | Radial piston pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02127785U true JPH02127785U (en) | 1990-10-22 |
| JP2509077Y2 JP2509077Y2 (en) | 1996-08-28 |
Family
ID=31543119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3667989U Expired - Lifetime JP2509077Y2 (en) | 1989-03-30 | 1989-03-30 | Radial piston pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2509077Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04287874A (en) * | 1991-03-18 | 1992-10-13 | Nissan Motor Co Ltd | Variable displacement pump |
| JPH0524969U (en) * | 1990-12-25 | 1993-04-02 | 株式会社アツギユニシア | Radial plunge pump |
| JP4713092B2 (en) * | 2004-04-27 | 2011-06-29 | パナソニック株式会社 | Fuel cell system |
-
1989
- 1989-03-30 JP JP3667989U patent/JP2509077Y2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0524969U (en) * | 1990-12-25 | 1993-04-02 | 株式会社アツギユニシア | Radial plunge pump |
| JPH04287874A (en) * | 1991-03-18 | 1992-10-13 | Nissan Motor Co Ltd | Variable displacement pump |
| JP4713092B2 (en) * | 2004-04-27 | 2011-06-29 | パナソニック株式会社 | Fuel cell system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2509077Y2 (en) | 1996-08-28 |