JPS5692393A - Load reduction device for rotary compressor at time of starting - Google Patents
Load reduction device for rotary compressor at time of startingInfo
- Publication number
- JPS5692393A JPS5692393A JP16756979A JP16756979A JPS5692393A JP S5692393 A JPS5692393 A JP S5692393A JP 16756979 A JP16756979 A JP 16756979A JP 16756979 A JP16756979 A JP 16756979A JP S5692393 A JPS5692393 A JP S5692393A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- side chamber
- load
- starting
- pressure
- 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
Abstract
PURPOSE: To increase a load reduction effect by shutting off piping from an oily component separation tank to a valve-opening side chamber of a capacity adjustment device, introducing piping leading to a valve-closing side chamber for communication in a very brief period of time after starting and placing a compressor in a loadless state when the pressure of the oily component separation tank is very low.
CONSTITUTION: If a starter switch is put in "ON" position, causing an electric motor to operate Y, electromagnetic valves 70, 71 are not excited until completion of switching Y-Δ with the assistance of a timer, so that the pressure of an oily component separation tank 4 directly enters a valve-closing side chamber 9 passing through an electromagnetic valve 70. In addition, piping in a reducing valve 10 and a valve-opening side chamber 11 is shut off, causing the valve-opening side chamber 11 to communicate with a suction side chamber 13. For this reason, a negative pressure from the suction side chamber acts on the valve-opening side chamber 11 and the pressure of the oil component separation tank 4 closes a valve 2 without fail at a low pressure of approx. 1.5kg/cm2 under a geometrical effect of a load by the said negative pressure and a load working on the valve-closing side chamber. As a result, a compressor is without a load. The time involved is approx. 1.5sec after starting and therefore, a load at time of starting can be reduced.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16756979A JPS5692393A (en) | 1979-12-25 | 1979-12-25 | Load reduction device for rotary compressor at time of starting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16756979A JPS5692393A (en) | 1979-12-25 | 1979-12-25 | Load reduction device for rotary compressor at time of starting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5692393A true JPS5692393A (en) | 1981-07-27 |
| JPS6323395B2 JPS6323395B2 (en) | 1988-05-16 |
Family
ID=15852159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16756979A Granted JPS5692393A (en) | 1979-12-25 | 1979-12-25 | Load reduction device for rotary compressor at time of starting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5692393A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS634384U (en) * | 1986-06-26 | 1988-01-12 | ||
| JPS6466485A (en) * | 1987-09-08 | 1989-03-13 | Hitachi Ltd | Oil supplier of oil cooling type screw compressor |
| AT401551B (en) * | 1994-03-30 | 1996-10-25 | Hoerbiger Ventilwerke Ag | DEVICE FOR REDUCING THE PRESSURE OF A COMPRESSOR |
-
1979
- 1979-12-25 JP JP16756979A patent/JPS5692393A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS634384U (en) * | 1986-06-26 | 1988-01-12 | ||
| JPS6466485A (en) * | 1987-09-08 | 1989-03-13 | Hitachi Ltd | Oil supplier of oil cooling type screw compressor |
| AT401551B (en) * | 1994-03-30 | 1996-10-25 | Hoerbiger Ventilwerke Ag | DEVICE FOR REDUCING THE PRESSURE OF A COMPRESSOR |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6323395B2 (en) | 1988-05-16 |
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