JPH01102491U - - Google Patents
Info
- Publication number
- JPH01102491U JPH01102491U JP19996987U JP19996987U JPH01102491U JP H01102491 U JPH01102491 U JP H01102491U JP 19996987 U JP19996987 U JP 19996987U JP 19996987 U JP19996987 U JP 19996987U JP H01102491 U JPH01102491 U JP H01102491U
- Authority
- JP
- Japan
- Prior art keywords
- pump chamber
- circumferential surface
- inner circumferential
- pump
- housing
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000005192 partition Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 2
Landscapes
- Rotary Pumps (AREA)
Description
第１図は、この考案になるロータリー偏心ポン
プの一例を示す概略的断面図、第２図は、これに
対応する従来のロータリー偏心ポンプの例を示す
概略的断面図である。
１……ロータリー偏心ポンプ、２……ハウジン
グ、３……円筒内周面、４……ポンプ室、５……
吸入口、６……吐出口、７……ロータ、８……ベ
ーン、９……第１のシール面、１０……第２のシ
ール面、１１……吸入側ポンプ室、１２……吐出
側ポンプ室、１３……吸入側圧力緩和溝、１４…
…吐出側圧力緩和溝、Ｐ１……ポンプ室軸心点、
Ｐ２……ロータ偏心点。
FIG. 1 is a schematic sectional view showing an example of a rotary eccentric pump according to the present invention, and FIG. 2 is a schematic sectional view showing an example of a conventional rotary eccentric pump corresponding thereto. DESCRIPTION OF SYMBOLS 1...Rotary eccentric pump, 2...Housing, 3...Cylindrical inner peripheral surface, 4...Pump chamber, 5...
Suction port, 6...Discharge port, 7...Rotor, 8...Vane, 9...First sealing surface, 10...Second sealing surface, 11...Suction side pump chamber, 12...Discharge side Pump chamber, 13... Suction side pressure relief groove, 14...
...Discharge side pressure relief groove, P 1 ...Pump chamber axis center point,
P2 ... Rotor eccentric point.
Claims (1)
、前記ポンプ室に連通する吸入口および吐出口を
備えたハウジングと、前記ハウジングにおけるポ
ンプ室の内周面に関して偏心した位置に軸支され
ていて、偏心回転に応じて前記ポンプ室の内周面
に向けて放射方向に変位する複数のベーンを備え
たロータとからなるロータリー偏心ポンプにおい
て、 前記ハウジングにおける前記吸入口と吐出口の
それぞれ両側に、前記回転するベーンによつて吸
入側ポンプ室と吐出側ポンプ室に仕切る第１およ
び第２のシール面を設け、前記ポンプ室における
吸入側内周面に前記吸入側ポンプ室を連通する吸
入側圧力緩和溝を設け、前記ポンプ室における吐
出側内周面に前記吐出側ポンプ室を連通する吐出
側圧力緩和溝を設けてなることを特徴とするロー
タリー偏心ポンプ。[Claims for Utility Model Registration] A housing having a pump chamber defined by a cylindrical inner circumferential surface and having an inlet and a discharge port communicating with the pump chamber, and an inner circumferential surface of the pump chamber in the housing. A rotary eccentric pump comprising a rotor having a plurality of vanes that are pivotally supported at an eccentric position with respect to the housing and that are displaced in a radial direction toward the inner circumferential surface of the pump chamber in response to eccentric rotation. First and second seal surfaces are provided on both sides of the suction port and the discharge port, respectively, to partition the pump chamber into a suction side pump chamber and a discharge side pump chamber by the rotating vane, and the inner circumferential surface of the suction side of the pump chamber is provided with the A rotary eccentric pump characterized in that a suction side pressure relief groove communicating with the suction side pump chamber is provided, and a discharge side pressure relief groove communicating with the discharge side pump chamber is provided on the discharge side inner peripheral surface of the pump chamber. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19996987U JPH01102491U (en) | 1987-12-26 | 1987-12-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19996987U JPH01102491U (en) | 1987-12-26 | 1987-12-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01102491U true JPH01102491U (en) | 1989-07-11 |
Family
ID=31490398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19996987U Pending JPH01102491U (en) | 1987-12-26 | 1987-12-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01102491U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040028131A (en) * | 2002-09-30 | 2004-04-03 | 발레오만도전장시스템스코리아 주식회사 | Vacuum Pump for Reducing Noise |
| JP2011157826A (en) * | 2010-01-29 | 2011-08-18 | Hitachi Automotive Systems Ltd | Vane pump |
-
1987
- 1987-12-26 JP JP19996987U patent/JPH01102491U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040028131A (en) * | 2002-09-30 | 2004-04-03 | 발레오만도전장시스템스코리아 주식회사 | Vacuum Pump for Reducing Noise |
| JP2011157826A (en) * | 2010-01-29 | 2011-08-18 | Hitachi Automotive Systems Ltd | Vane pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6328892U (en) | ||
| JPH01102491U (en) | ||
| JPH01102492U (en) | ||
| JPS63104689U (en) | ||
| JPH01102490U (en) | ||
| JPH0457687U (en) | ||
| JPH01162093U (en) | ||
| JPS61164484U (en) | ||
| JPS61134589U (en) | ||
| JPH01113172U (en) | ||
| JPS6036585U (en) | vane pump | |
| JPH01102493U (en) | ||
| JPS61103586U (en) | ||
| JPH0457688U (en) | ||
| JPS59160875U (en) | variable capacity vane pump | |
| JPH02113000U (en) | ||
| JPS59131990U (en) | Variable displacement vane pump | |
| JPS61149791U (en) | ||
| JPH027389U (en) | ||
| JPS61152786U (en) | ||
| JPS61181888U (en) | ||
| JPH01160190U (en) | ||
| JPS6032579U (en) | vane pump | |
| JPS61197287U (en) | ||
| JPH0237285U (en) |