JPS57140585A - Controller for refrigerator - Google Patents
Controller for refrigeratorInfo
- Publication number
- JPS57140585A JPS57140585A JP2469881A JP2469881A JPS57140585A JP S57140585 A JPS57140585 A JP S57140585A JP 2469881 A JP2469881 A JP 2469881A JP 2469881 A JP2469881 A JP 2469881A JP S57140585 A JPS57140585 A JP S57140585A
- Authority
- JP
- Japan
- Prior art keywords
- compressor
- low
- switch
- low pressure
- turn
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
- F04B49/022—Stopping, starting, unloading or idling control by means of pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
PURPOSE:To economize electric power, by using the low pressure switch of a controller to detect the low suction pressur of a compressor to delay its operation by a delaying timer relay connected in series with the low pressure switch, to reduce the operation of the compressor at such low suction pressure that the operation efficiency is poor. CONSTITUTION:The low suction pressure of a compressor 2 is detected by the low pressure switch 6 of a second series circuit 16 to operate a delaying timer relay 15. The delaying timer contact 12 of a first series circuit 14 is then closed to turn on the driving magnet switch 13 of the compressor 2 to operate it. When the low pressure of the compressor 2 has fallen further to the set turn-off level of the low pressure switch 6, the compressor is stopped. When the pressure has thereafter risen to the turn-off level of the switch 6, it is turned on to start the cooling operation of the compressor 2 again after the st time of a delaying timer 17. According to this constitution, the short-cycle operation of the compressor 2 is prevented and its operation at such low suction pressure that the operation efficiency is poor is reduced. For that reason, much electric power is economized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2469881A JPS57140585A (en) | 1981-02-20 | 1981-02-20 | Controller for refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2469881A JPS57140585A (en) | 1981-02-20 | 1981-02-20 | Controller for refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57140585A true JPS57140585A (en) | 1982-08-31 |
Family
ID=12145389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2469881A Pending JPS57140585A (en) | 1981-02-20 | 1981-02-20 | Controller for refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57140585A (en) |
-
1981
- 1981-02-20 JP JP2469881A patent/JPS57140585A/en active Pending
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