JPS6398493U - - Google Patents
Info
- Publication number
- JPS6398493U JPS6398493U JP19395486U JP19395486U JPS6398493U JP S6398493 U JPS6398493 U JP S6398493U JP 19395486 U JP19395486 U JP 19395486U JP 19395486 U JP19395486 U JP 19395486U JP S6398493 U JPS6398493 U JP S6398493U
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- pump
- housing
- type vacuum
- vane
- 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
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 claims 1
Description
第１図は本考案の実施例の縦断面図、第２図は
その拡大部分図、第３図は従来例の縦断面図であ
る。
１……ハウジング、２……ロータ、４……ベー
ン、５……内周面、６……ポンプ室、７……吸込
口、８……吐出口、１１……くぼみ。
FIG. 1 is a longitudinal sectional view of an embodiment of the present invention, FIG. 2 is an enlarged partial view thereof, and FIG. 3 is a longitudinal sectional view of a conventional example. DESCRIPTION OF SYMBOLS 1... Housing, 2... Rotor, 4... Vane, 5... Inner peripheral surface, 6... Pump chamber, 7... Suction port, 8... Discharge port, 11... Recess.
Claims (1)
ジングとロータとベーンとに囲まれた複数のポン
プ室がロータの回転に伴い拡大、縮小して吸込行
程と圧縮行程とを繰返すベーン形真空ポンプにお
いて、前記ハウジングの内周面にポンプ室の容積
縮小を減少乃至ゼロとするくぼみを設け圧縮行程
を短くしたことを特徴とするベーン形真空ポンプ
。 A vane type vacuum pump in which a rotor is eccentrically built into the housing, and a plurality of pump chambers surrounded by the housing, rotor, and vanes expand and contract as the rotor rotates to repeat a suction stroke and a compression stroke. 1. A vane-type vacuum pump characterized in that the compression stroke is shortened by providing a recess on the inner peripheral surface of the pump chamber to reduce or eliminate volume reduction of the pump chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19395486U JPS6398493U (en) | 1986-12-17 | 1986-12-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19395486U JPS6398493U (en) | 1986-12-17 | 1986-12-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6398493U true JPS6398493U (en) | 1988-06-25 |
Family
ID=31150468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19395486U Pending JPS6398493U (en) | 1986-12-17 | 1986-12-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6398493U (en) |
-
1986
- 1986-12-17 JP JP19395486U patent/JPS6398493U/ja active Pending