JPS54136458A - Refrigerating cycle for air-conditioning unit - Google Patents
Refrigerating cycle for air-conditioning unitInfo
- Publication number
- JPS54136458A JPS54136458A JP4324478A JP4324478A JPS54136458A JP S54136458 A JPS54136458 A JP S54136458A JP 4324478 A JP4324478 A JP 4324478A JP 4324478 A JP4324478 A JP 4324478A JP S54136458 A JPS54136458 A JP S54136458A
- Authority
- JP
- Japan
- Prior art keywords
- cooling media
- evaporator
- temperature
- heat
- pressured
- 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
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
PURPOSE: To ensure overload-preventing effect and heighten upper limit of high temperature continuous operation by dividing an evaporator into plural sections and also by providing at least one evaporator with a cooling media flow control step operatable by output signal from a cooling media overheat detecting step.
CONSTITUTION: When atmospheric temperature goes up and condensation pressure becomes in the neighborhood of a value tolerable for operating a compressor 1, a bypass circuit switching step 22 is opened so that a part of high-pressured liquid cooling medium is branched out from a main circuit A, and it passes through a pipeline 21, a switching step 22 and an expanding step 23, and it is gasified at a cooling media heat exchanger 24 by being made to exchange heat with high-temperature-and-high-pressured cooling media from a condenser 2, and it is suched into the compressor 1 after being made to pass through a pipeline 25 and joins with main circuit cooling media flow. By opening of a bypass circuit B, volume of the cooling media of an evaporator 4b equipped with a capillary tube is increased, that of an evaporator 4a is reduced, its heat-absorbing rate is also reduced, heat-discharging rate of the condensing unit 2 is reduced, and therefore, temperature of the high-temperature-and-high-pressured cooling media of the cooling media of the cooling media heat exchanger 24 is effectively lowered and, at the same time, overheat is prevented.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4324478A JPS54136458A (en) | 1978-04-14 | 1978-04-14 | Refrigerating cycle for air-conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4324478A JPS54136458A (en) | 1978-04-14 | 1978-04-14 | Refrigerating cycle for air-conditioning unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54136458A true JPS54136458A (en) | 1979-10-23 |
Family
ID=12658468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4324478A Pending JPS54136458A (en) | 1978-04-14 | 1978-04-14 | Refrigerating cycle for air-conditioning unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54136458A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4779425A (en) * | 1986-05-14 | 1988-10-25 | Sanden Corporation | Refrigerating apparatus |
| JP2007040601A (en) * | 2005-08-03 | 2007-02-15 | Valeo Thermal Systems Japan Corp | Refrigeration cycle |
| WO2017104050A1 (en) * | 2015-12-17 | 2017-06-22 | 三菱電機株式会社 | Heat exchanger and freezing cycle device |
| WO2024154188A1 (en) * | 2023-01-16 | 2024-07-25 | 日本電気株式会社 | Heat exchange unit, cooling device, cooling method, and control program for heat exchange unit |
| WO2024154193A1 (en) * | 2023-01-16 | 2024-07-25 | 日本電気株式会社 | Heat exchange unit, cooling device, and cooling method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5015148A (en) * | 1973-06-12 | 1975-02-18 | ||
| JPS5249823U (en) * | 1975-10-07 | 1977-04-08 |
-
1978
- 1978-04-14 JP JP4324478A patent/JPS54136458A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5015148A (en) * | 1973-06-12 | 1975-02-18 | ||
| JPS5249823U (en) * | 1975-10-07 | 1977-04-08 |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4779425A (en) * | 1986-05-14 | 1988-10-25 | Sanden Corporation | Refrigerating apparatus |
| JP2007040601A (en) * | 2005-08-03 | 2007-02-15 | Valeo Thermal Systems Japan Corp | Refrigeration cycle |
| WO2017104050A1 (en) * | 2015-12-17 | 2017-06-22 | 三菱電機株式会社 | Heat exchanger and freezing cycle device |
| JPWO2017104050A1 (en) * | 2015-12-17 | 2018-10-04 | 三菱電機株式会社 | Heat exchanger and refrigeration cycle equipment |
| US10760824B2 (en) | 2015-12-17 | 2020-09-01 | Mitsubishi Electric Corporation | Heat exchanger and refrigeration cycle apparatus |
| WO2024154188A1 (en) * | 2023-01-16 | 2024-07-25 | 日本電気株式会社 | Heat exchange unit, cooling device, cooling method, and control program for heat exchange unit |
| WO2024154193A1 (en) * | 2023-01-16 | 2024-07-25 | 日本電気株式会社 | Heat exchange unit, cooling device, and cooling method |
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