JPS56124698A - Volume controller for compressor - Google Patents
Volume controller for compressorInfo
- Publication number
- JPS56124698A JPS56124698A JP2657580A JP2657580A JPS56124698A JP S56124698 A JPS56124698 A JP S56124698A JP 2657580 A JP2657580 A JP 2657580A JP 2657580 A JP2657580 A JP 2657580A JP S56124698 A JPS56124698 A JP S56124698A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- compressor
- air
- oil separator
- unload
- 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.)
- Granted
Links
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
PURPOSE: To reduce shaft power remarkably in unload running by a method wherein the air in an oil seprator is discharged to the intended pressure and the pressure ratio of a compressor is made smaller than conventional one.
CONSTITUTION: When a compressor 1 is in unload running, the air in the oil separator 5 is discharged from a pipe 21 to an inlet port 9i through a pipe 25. Thus, the air in the oil separator 5 keeps the set-up pressure (e.g. 4kg/cm2) of a pressure regulating valve 20. In this way, since the air in the oil separator 5 is released down to the intended pressure in unload running, the pressure ratio of the compressor 1 (the value given by the pressure in the discharge passage divided by the pressure in the suction passage) becomes smaller than conventionally and as a result the shaft in unload running can be reduced remarkably.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2657580A JPS56124698A (en) | 1980-03-05 | 1980-03-05 | Volume controller for compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2657580A JPS56124698A (en) | 1980-03-05 | 1980-03-05 | Volume controller for compressor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56124698A true JPS56124698A (en) | 1981-09-30 |
JPS6357634B2 JPS6357634B2 (en) | 1988-11-11 |
Family
ID=12197343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2657580A Granted JPS56124698A (en) | 1980-03-05 | 1980-03-05 | Volume controller for compressor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56124698A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0571481A (en) * | 1991-09-10 | 1993-03-23 | Hitachi Ltd | Capacity control method and device for screw compressor |
AT401551B (en) * | 1994-03-30 | 1996-10-25 | Hoerbiger Ventilwerke Ag | DEVICE FOR REDUCING THE PRESSURE OF A COMPRESSOR |
JP2001355576A (en) * | 2000-06-15 | 2001-12-26 | Hokuetsu Kogyo Co Ltd | Capacity control method and device for compressor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5112008U (en) * | 1974-07-15 | 1976-01-29 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5112008B2 (en) * | 1972-04-19 | 1976-04-15 |
-
1980
- 1980-03-05 JP JP2657580A patent/JPS56124698A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5112008U (en) * | 1974-07-15 | 1976-01-29 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0571481A (en) * | 1991-09-10 | 1993-03-23 | Hitachi Ltd | Capacity control method and device for screw compressor |
AT401551B (en) * | 1994-03-30 | 1996-10-25 | Hoerbiger Ventilwerke Ag | DEVICE FOR REDUCING THE PRESSURE OF A COMPRESSOR |
JP2001355576A (en) * | 2000-06-15 | 2001-12-26 | Hokuetsu Kogyo Co Ltd | Capacity control method and device for compressor |
JP4603129B2 (en) * | 2000-06-15 | 2010-12-22 | 北越工業株式会社 | Compressor capacity control method and capacity control apparatus |
Also Published As
Publication number | Publication date |
---|---|
JPS6357634B2 (en) | 1988-11-11 |
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