JPH0411263U - - Google Patents
Info
- Publication number
- JPH0411263U JPH0411263U JP5325090U JP5325090U JPH0411263U JP H0411263 U JPH0411263 U JP H0411263U JP 5325090 U JP5325090 U JP 5325090U JP 5325090 U JP5325090 U JP 5325090U JP H0411263 U JPH0411263 U JP H0411263U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- ring
- cam
- chamber
- suction port
- 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
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000006073 displacement reaction Methods 0.000 claims 1
Landscapes
- Reciprocating Pumps (AREA)
Description
第１図は本考案の実施例示す上死点位置のピス
トンと油室の縦断面図、第２図は同じく下死点位
置のピストンと油室の縦断面図である。また、第
３図は従来例を示すラジアルピストンポンプの横
断面図である。
１……ポンプボデイ、３……カム、４……カム
室、５……油室、６……ピストン、１０……リン
グ、１３……吸込口、１４……切欠、２０……チ
エツク弁、２１……ガイド、２２……リターンス
プリング。
FIG. 1 is a longitudinal sectional view of the piston and oil chamber at the top dead center position, and FIG. 2 is a longitudinal sectional view of the piston and the oil chamber at the bottom dead center position, showing an embodiment of the present invention. Moreover, FIG. 3 is a cross-sectional view of a radial piston pump showing a conventional example. 1... Pump body, 3... Cam, 4... Cam chamber, 5... Oil chamber, 6... Piston, 10... Ring, 13... Suction port, 14... Notch, 20... Check valve, 21 ...Guide, 22...Return spring.
Claims (1)
した偏心カムを回転自由に収装し、カム室を中心
にポンプボデイに放射状に形成した油室にピスト
ンをそれぞれ摺動自由に収装し、ピストン数に等
しい多角形断面のリングを前記カムの外周に回転
自由に嵌合させ、ピストン基端を付勢手段により
このリング外周に摺接保持し、ピストンの基端に
開口する前記油室への吸込口をリングとピストン
との相対変位に応じてカム室に連通する切欠をリ
ング外周部に形成したラジアルピストンポンプに
おいて、ピストンの最圧縮位置の近傍で油室側か
ら吸込口を閉鎖するチエツク弁を備えたことを特
徴とするラジアルピストンポンプ。 An eccentric cam connected to a rotating shaft is freely rotatably housed in a cam chamber formed in the pump body, and pistons are housed so as to slide freely in oil chambers formed radially in the pump body around the cam chamber. A ring with an equal polygonal cross section is rotatably fitted onto the outer periphery of the cam, and the base end of the piston is held in sliding contact with the outer periphery of the ring by a biasing means, and a suction port to the oil chamber is opened at the base end of the piston. A radial piston pump has a notch formed on the outer circumference of the ring that communicates with the cam chamber according to the relative displacement between the ring and the piston, and is equipped with a check valve that closes the suction port from the oil chamber side near the maximum compression position of the piston. A radial piston pump characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5325090U JP2502287Y2 (en) | 1990-05-22 | 1990-05-22 | Radial piston pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5325090U JP2502287Y2 (en) | 1990-05-22 | 1990-05-22 | Radial piston pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0411263U true JPH0411263U (en) | 1992-01-30 |
| JP2502287Y2 JP2502287Y2 (en) | 1996-06-19 |
Family
ID=31574277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5325090U Expired - Fee Related JP2502287Y2 (en) | 1990-05-22 | 1990-05-22 | Radial piston pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2502287Y2 (en) |
-
1990
- 1990-05-22 JP JP5325090U patent/JP2502287Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2502287Y2 (en) | 1996-06-19 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |