JPS63108587U - - Google Patents
Info
- Publication number
- JPS63108587U JPS63108587U JP20300486U JP20300486U JPS63108587U JP S63108587 U JPS63108587 U JP S63108587U JP 20300486 U JP20300486 U JP 20300486U JP 20300486 U JP20300486 U JP 20300486U JP S63108587 U JPS63108587 U JP S63108587U
- Authority
- JP
- Japan
- Prior art keywords
- oil
- pump
- rotary vacuum
- feed pump
- feed
- 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
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案に係る油回転真空ポンプのシス
テム概要図であり、第２図ａ，ｂ，ｃはその可変
オリフイスの作動を示す各部分断面図である。
１……ポンプ本体、２……ポンプ室、３……油
タンク、４……油送りポンプ、５ａ，５ｂ……油
通路、７……可変オリフイス。
FIG. 1 is a system schematic diagram of an oil rotary vacuum pump according to the present invention, and FIGS. 2a, b, and c are partial sectional views showing the operation of the variable orifice. 1... Pump body, 2... Pump chamber, 3... Oil tank, 4... Oil feed pump, 5a, 5b... Oil passage, 7... Variable orifice.
Claims (1)
ポンプ本体のポンプ室に圧送する油送りポンプを
備えた油回転真空ポンプにおいて、前記油送りポ
ンプから前記ポンプ室に油を導く油通路に、油送
りポンプ側の圧力に比例して流路を開閉する可変
オリフイスを介設したことを特徴とする油回転真
空ポンプ。 In an oil rotary vacuum pump equipped with an oil feed pump that pumps oil stored in an oil tank surrounding a pump body to a pump chamber of the pump body, an oil passage that leads oil from the oil feed pump to the pump chamber is provided with oil. An oil rotary vacuum pump characterized by having a variable orifice that opens and closes a flow path in proportion to the pressure on the feed pump side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20300486U JPS63108587U (en) | 1986-12-31 | 1986-12-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20300486U JPS63108587U (en) | 1986-12-31 | 1986-12-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63108587U true JPS63108587U (en) | 1988-07-13 |
Family
ID=31167922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20300486U Pending JPS63108587U (en) | 1986-12-31 | 1986-12-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63108587U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60249690A (en) * | 1984-05-21 | 1985-12-10 | ゼネラル シグナル コーポレーシヨン | Rotary piston vacuum pump |
| JPS6189990A (en) * | 1984-10-11 | 1986-05-08 | Hitachi Ltd | Scroll compressor |
| JPS6248987B2 (en) * | 1983-04-01 | 1987-10-16 | Sumitomo Chemical Co |
-
1986
- 1986-12-31 JP JP20300486U patent/JPS63108587U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6248987B2 (en) * | 1983-04-01 | 1987-10-16 | Sumitomo Chemical Co | |
| JPS60249690A (en) * | 1984-05-21 | 1985-12-10 | ゼネラル シグナル コーポレーシヨン | Rotary piston vacuum pump |
| JPS6189990A (en) * | 1984-10-11 | 1986-05-08 | Hitachi Ltd | Scroll compressor |