JPH0469687U - - Google Patents
Info
- Publication number
- JPH0469687U JPH0469687U JP11313390U JP11313390U JPH0469687U JP H0469687 U JPH0469687 U JP H0469687U JP 11313390 U JP11313390 U JP 11313390U JP 11313390 U JP11313390 U JP 11313390U JP H0469687 U JPH0469687 U JP H0469687U
- Authority
- JP
- Japan
- Prior art keywords
- vane
- slit
- rotor
- pressure chamber
- back pressure
- 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
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Rotary Pumps (AREA)
Description
第１図は、この考案の実施例におけるベーンポ
ンプの断面図、第２図は、第１図の−線にお
ける断面図、第３図、第１図の−線における
断面図、第４図は、この考案の実施例におけるベ
ーンポンプのベーンの正面図、第５図は、この考
案の実施例におけるベーンポンプのベーンの作用
説明図である。
１……フロントハウジング、１ａ，２ａ……平
面部、１ｂ……軸孔、１ｃ……吐出ポート、１ｄ
……バイパス通路、１ｅ……リザーバ通路、１ｆ
，２ｆ……吸入ポート、１ｇ……吐出通路、１ｈ
，２ｈ……吸入通路、１ｉ……内部孔、２……リ
アハウジング、２ｂ……凹部、２ｃ……吐出孔、
２ｄ……円環溝、２ｅ……加圧通路、１１……転
がり軸受、１２……滑り軸受、１３，２３……オ
イルシール、２１……サイドプレート、２１ａ…
…平面部、２２……ボルト、２４……ウエーブワ
ツシヤ、２５……カムリング、３０……ロータ、
３０ａ……作動室、３１……回転軸、３２……ス
リツト、３２ａ……背圧室、４０……ベーン、４
１ａ，４１ｂ……凹溝。
FIG. 1 is a cross-sectional view of a vane pump according to an embodiment of this invention, FIG. 2 is a cross-sectional view taken along the - line in FIG. 1, FIG. 3 is a cross-sectional view taken along the - line in FIG. 1, and FIG. FIG. 5, a front view of the vane of the vane pump according to the embodiment of this invention, is an explanatory view of the operation of the vane of the vane pump according to the embodiment of this invention. 1...Front housing, 1a, 2a...Flat part, 1b...Shaft hole, 1c...Discharge port, 1d
...Bypass passage, 1e...Reservoir passage, 1f
, 2f...Suction port, 1g...Discharge passage, 1h
, 2h... Suction passage, 1i... Internal hole, 2... Rear housing, 2b... Recess, 2c... Discharge hole,
2d... Annular groove, 2e... Pressure passage, 11... Rolling bearing, 12... Sliding bearing, 13, 23... Oil seal, 21... Side plate, 21a...
...Flat part, 22... Bolt, 24... Wave washer, 25... Cam ring, 30... Rotor,
30a... Working chamber, 31... Rotating shaft, 32... Slit, 32a... Back pressure chamber, 40... Vane, 4
1a, 41b... Concave groove.
Claims (1)
で回転駆動されるロータを備え、ロータには、複
数のスリツトが半径方向に形成されており、各ス
リツトの底部には、吐出口側の通路に連通した軸
線方向の背圧室が形成され、各スリツトには、前
記スリツトとの滑動面の基端縁に近接して退入時
に前記背圧室と接する位置に基端縁に略平行に両
端が閉じられたベーン幅方向の凹溝が形成されて
いるベーンが放射方向に滑動自在に嵌挿されてい
るベーンポンプ。 The rotor is rotatably driven in a space within the inner cam surface within the pump housing, and the rotor has a plurality of slits formed in the radial direction, and the bottom of each slit has a hole that communicates with a passage on the discharge port side. A back pressure chamber in the axial direction is formed, and each slit has both ends closed approximately parallel to the base edge at a position close to the base edge of the sliding surface with the slit and in contact with the back pressure chamber upon retraction. A vane pump in which a vane is slidably inserted in a radial direction, and a concave groove is formed in the width direction of the vane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11313390U JPH0469687U (en) | 1990-10-30 | 1990-10-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11313390U JPH0469687U (en) | 1990-10-30 | 1990-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0469687U true JPH0469687U (en) | 1992-06-19 |
Family
ID=31860687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11313390U Pending JPH0469687U (en) | 1990-10-30 | 1990-10-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0469687U (en) |
-
1990
- 1990-10-30 JP JP11313390U patent/JPH0469687U/ja active Pending