JPS58176489A - Motor compressor - Google Patents
Motor compressorInfo
- Publication number
- JPS58176489A JPS58176489A JP5808182A JP5808182A JPS58176489A JP S58176489 A JPS58176489 A JP S58176489A JP 5808182 A JP5808182 A JP 5808182A JP 5808182 A JP5808182 A JP 5808182A JP S58176489 A JPS58176489 A JP S58176489A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- chamber
- check valve
- discharging
- oil
- 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
- 238000007599 discharging Methods 0.000 abstract 4
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/06—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for stopping, starting, idling or no-load operation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/005—Axial sealings for working fluid
Abstract
PURPOSE:To stabilize the back pressure of a back pressure chamber and the level of returning oil for the scroll compressor by a method wherein a check valve communicating with a discharging chamber is provided on the back pressure chamber. CONSTITUTION:The check valve communicating with the discharging chamber 20 is provided at the lower part of the back pressure chamber for the scroll compressor together with a small hole 22. When the compressor is stopped and the pressure thereof is balanced, the check valve 12 is opened and oil in the back pressure chamber returns to an oil reservoir. When the back pressure has become higher than a discharging pressure during operation, the check valve 21 is opened to reduce the back pressure to a pressure lower than the discharging pressure, therefore, the pressure of the back pressure chamber for the scroll compressor and the level of returning oil may be stabilized.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5808182A JPS58176489A (en) | 1982-04-09 | 1982-04-09 | Motor compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5808182A JPS58176489A (en) | 1982-04-09 | 1982-04-09 | Motor compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS58176489A true JPS58176489A (en) | 1983-10-15 |
Family
ID=13073963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5808182A Pending JPS58176489A (en) | 1982-04-09 | 1982-04-09 | Motor compressor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58176489A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01178785A (en) * | 1987-12-29 | 1989-07-14 | Matsushita Electric Ind Co Ltd | Electric compressor |
US4997350A (en) * | 1988-02-19 | 1991-03-05 | Hitachi, Ltd. | Scroll fluid machine with bearing lubrication |
EP0717192A1 (en) * | 1994-06-29 | 1996-06-19 | Daikin Industries, Ltd. | Oil level control device for a compressor |
JP2006220143A (en) * | 2005-01-14 | 2006-08-24 | Hitachi Ltd | Displacement fluid machine and refrigerating cycle by use of it |
WO2018173543A1 (en) * | 2017-03-22 | 2018-09-27 | サンデンホールディングス株式会社 | Scroll compressor |
-
1982
- 1982-04-09 JP JP5808182A patent/JPS58176489A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01178785A (en) * | 1987-12-29 | 1989-07-14 | Matsushita Electric Ind Co Ltd | Electric compressor |
US4997350A (en) * | 1988-02-19 | 1991-03-05 | Hitachi, Ltd. | Scroll fluid machine with bearing lubrication |
EP0717192A1 (en) * | 1994-06-29 | 1996-06-19 | Daikin Industries, Ltd. | Oil level control device for a compressor |
EP0717192A4 (en) * | 1994-06-29 | 1998-01-07 | Daikin Ind Ltd | Oil level control device for a compressor |
JP2006220143A (en) * | 2005-01-14 | 2006-08-24 | Hitachi Ltd | Displacement fluid machine and refrigerating cycle by use of it |
JP4697734B2 (en) * | 2005-01-14 | 2011-06-08 | 日立アプライアンス株式会社 | Refrigeration cycle |
WO2018173543A1 (en) * | 2017-03-22 | 2018-09-27 | サンデンホールディングス株式会社 | Scroll compressor |
CN110462217A (en) * | 2017-03-22 | 2019-11-15 | 三电控股株式会社 | Scrawl compressor |
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