JPS6227402B2 - - Google Patents
Info
- Publication number
- JPS6227402B2 JPS6227402B2 JP56063046A JP6304681A JPS6227402B2 JP S6227402 B2 JPS6227402 B2 JP S6227402B2 JP 56063046 A JP56063046 A JP 56063046A JP 6304681 A JP6304681 A JP 6304681A JP S6227402 B2 JPS6227402 B2 JP S6227402B2
- Authority
- JP
- Japan
- Prior art keywords
- refrigerator
- comparator
- minimum
- time
- output
- 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.)
- Expired
Links
- 238000001514 detection method Methods 0.000 claims 2
- 238000013459 approach Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
- G05D23/1913—Control of temperature characterised by the use of electric means using an analogue comparing device delivering a series of pulses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/025—Compressor control by controlling speed
- F25B2600/0251—Compressor control by controlling speed with on-off operation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Feedback Control In General (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56063046A JPS57178504A (en) | 1981-04-25 | 1981-04-25 | Controller for operation rate of refrigerating machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56063046A JPS57178504A (en) | 1981-04-25 | 1981-04-25 | Controller for operation rate of refrigerating machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57178504A JPS57178504A (en) | 1982-11-02 |
JPS6227402B2 true JPS6227402B2 (fr) | 1987-06-15 |
Family
ID=13217993
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56063046A Granted JPS57178504A (en) | 1981-04-25 | 1981-04-25 | Controller for operation rate of refrigerating machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57178504A (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60237502A (ja) * | 1984-05-10 | 1985-11-26 | Yamatake Honeywell Co Ltd | 複合制御装置 |
JPS61160102A (ja) * | 1984-12-29 | 1986-07-19 | Nishihara Environ Sanit Res Corp | プロセス制御装置 |
JP5392678B2 (ja) * | 2009-08-04 | 2014-01-22 | 中野冷機株式会社 | ショーケースの温度制御方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4832597A (fr) * | 1971-08-31 | 1973-04-28 | ||
JPS4951397A (fr) * | 1972-09-15 | 1974-05-18 | ||
JPS5188927A (fr) * | 1975-01-30 | 1976-08-04 | ||
JPS5379177A (en) * | 1976-12-23 | 1978-07-13 | Fuji Electric Co Ltd | Pulse width modulator type adjustor meter |
JPS5485300A (en) * | 1977-11-07 | 1979-07-06 | Mobay Chemical Corp | Polyether polyol |
JPS567102A (en) * | 1979-06-27 | 1981-01-24 | Yamatake Honeywell Co Ltd | Controller for load operation time ratio |
-
1981
- 1981-04-25 JP JP56063046A patent/JPS57178504A/ja active Granted
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4832597A (fr) * | 1971-08-31 | 1973-04-28 | ||
JPS4951397A (fr) * | 1972-09-15 | 1974-05-18 | ||
JPS5188927A (fr) * | 1975-01-30 | 1976-08-04 | ||
JPS5379177A (en) * | 1976-12-23 | 1978-07-13 | Fuji Electric Co Ltd | Pulse width modulator type adjustor meter |
JPS5485300A (en) * | 1977-11-07 | 1979-07-06 | Mobay Chemical Corp | Polyether polyol |
JPS567102A (en) * | 1979-06-27 | 1981-01-24 | Yamatake Honeywell Co Ltd | Controller for load operation time ratio |
Also Published As
Publication number | Publication date |
---|---|
JPS57178504A (en) | 1982-11-02 |
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