FR2362350A1 - DEVICE FOR DEFROSTING EVAPORATORS OF REFRIGERATION CIRCUITS, IN PARTICULAR HEAT PUMPS - Google Patents
DEVICE FOR DEFROSTING EVAPORATORS OF REFRIGERATION CIRCUITS, IN PARTICULAR HEAT PUMPSInfo
- Publication number
- FR2362350A1 FR2362350A1 FR7725329A FR7725329A FR2362350A1 FR 2362350 A1 FR2362350 A1 FR 2362350A1 FR 7725329 A FR7725329 A FR 7725329A FR 7725329 A FR7725329 A FR 7725329A FR 2362350 A1 FR2362350 A1 FR 2362350A1
- Authority
- FR
- France
- Prior art keywords
- heat pumps
- refrigeration circuits
- defrosting evaporators
- particular heat
- evaporators
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/002—Defroster control
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/02—Detecting the presence of frost or condensate
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Defrosting Systems (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
a. Dispositif pour dégivrer des évaporateurs de circuits frigorifiques, notamment de pompes de chaleur; b. Dispositif caractérisé en ce que le mécanisme de commande et/ou l'un ou les deux capteurs de valeurs de mesure sont, pour corriger le signal differentiel, soumis à l'action de moyens sensibles à la chaleur, ces moyens modifiant, en fonction de la température ambiante autour de l'évaporateur, le signal différentiel par rapport à l'écart de température effectif entre les points de mesure des capteurs, de telle sorte que l'opération de dégivrage commence pour un plus faible écart de température lorsque la température ambiante s'abaisse et inversement ; c. L'invention s'applique aux dispositifs pour dégivrer des évaporateurs de circuits frigorifiques, notamment de pompes de chaleur.at. Device for defrosting evaporators of refrigeration circuits, in particular heat pumps; b. Device characterized in that the control mechanism and / or one or both measurement value sensors are, in order to correct the differential signal, subjected to the action of heat-sensitive means, these means modifying, depending on the ambient temperature around the evaporator, the differential signal with respect to the effective temperature difference between the measuring points of the sensors, so that the defrost operation starts for a smaller temperature difference when the ambient temperature lowers and vice versa; vs. The invention applies to devices for defrosting evaporators of refrigeration circuits, in particular of heat pumps.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19762637129 DE2637129A1 (en) | 1976-08-18 | 1976-08-18 | DEVICE FOR DEFROSTING EVAPORATORS IN REFRIGERANT CIRCUITS, IN PARTICULAR OF HEAT PUMPS |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2362350A1 true FR2362350A1 (en) | 1978-03-17 |
Family
ID=5985716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7725329A Withdrawn FR2362350A1 (en) | 1976-08-18 | 1977-08-18 | DEVICE FOR DEFROSTING EVAPORATORS OF REFRIGERATION CIRCUITS, IN PARTICULAR HEAT PUMPS |
Country Status (5)
Country | Link |
---|---|
DE (1) | DE2637129A1 (en) |
FR (1) | FR2362350A1 (en) |
GB (1) | GB1569835A (en) |
NL (1) | NL7709087A (en) |
SE (1) | SE7709276L (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2492070A1 (en) * | 1980-10-14 | 1982-04-16 | Gen Electric | DEGREASING CONTROL DEVICE FOR HEAT PUMP |
EP0142663A2 (en) * | 1983-09-20 | 1985-05-29 | MAN Technologie Aktiengesellschaft | Defrost control method and device for heat pumps |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3227604A1 (en) * | 1981-07-29 | 1983-02-24 | Olsberg Gesellschaft für Produktion und Absatz mbH, 5790 Brilon | Automatic defrosting device for heat pump evaporators |
DE3229160C2 (en) * | 1982-08-04 | 1984-07-12 | Siemens AG, 1000 Berlin und 8000 München | Method for operating an air-to-water heat pump |
DE3303054C2 (en) * | 1983-01-29 | 1994-02-10 | Ruhrgas Ag | Signal generator for controlling the defrosting of the evaporator of a heat pump |
DE3804267C1 (en) * | 1988-02-11 | 1989-02-23 | Friedhelm 5920 Bad Berleburg De Meyer | |
DE19507667A1 (en) * | 1995-03-04 | 1996-09-05 | Behr Gmbh & Co | Method and circuit arrangement for the on / off control of the compressor of a motor vehicle air conditioning system |
DE102006021374A1 (en) * | 2006-05-08 | 2007-11-22 | Liebherr-Hausgeräte Lienz Gmbh | Cooling or freezing device has cooling or freezing compartment, that is limited to one or more sides by disc or that is locked by door or cover and device also has sensor for measuring parameters of air and disc |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2093835A (en) * | 1934-06-30 | 1937-09-21 | Gen Motors Corp | Refrigerating apparatus |
US2215057A (en) * | 1938-11-03 | 1940-09-17 | Penn Electric Switch Co | Refrigerant system controller |
US2216589A (en) * | 1937-06-28 | 1940-10-01 | Gen Motors Corp | Refrigerating apparatus |
US2325511A (en) * | 1940-03-21 | 1943-07-27 | Westinghouse Electric & Mfg Co | Refrigeration apparatus |
US2666298A (en) * | 1950-11-01 | 1954-01-19 | U S Thermo Control Co | Method and means of defrosting a cold diffuser |
US2968167A (en) * | 1957-07-24 | 1961-01-17 | Ranco Inc | Defroster control |
US2988896A (en) * | 1957-02-01 | 1961-06-20 | Carrier Corp | Heat pump defrost control |
US3359750A (en) * | 1965-12-02 | 1967-12-26 | Gen Motors Corp | Refrigerator with defrost when necessary system |
-
1976
- 1976-08-18 DE DE19762637129 patent/DE2637129A1/en active Pending
-
1977
- 1977-08-17 NL NL7709087A patent/NL7709087A/en not_active Application Discontinuation
- 1977-08-17 SE SE7709276A patent/SE7709276L/en not_active Application Discontinuation
- 1977-08-17 GB GB34437/77A patent/GB1569835A/en not_active Expired
- 1977-08-18 FR FR7725329A patent/FR2362350A1/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2093835A (en) * | 1934-06-30 | 1937-09-21 | Gen Motors Corp | Refrigerating apparatus |
US2216589A (en) * | 1937-06-28 | 1940-10-01 | Gen Motors Corp | Refrigerating apparatus |
US2215057A (en) * | 1938-11-03 | 1940-09-17 | Penn Electric Switch Co | Refrigerant system controller |
US2325511A (en) * | 1940-03-21 | 1943-07-27 | Westinghouse Electric & Mfg Co | Refrigeration apparatus |
US2666298A (en) * | 1950-11-01 | 1954-01-19 | U S Thermo Control Co | Method and means of defrosting a cold diffuser |
US2988896A (en) * | 1957-02-01 | 1961-06-20 | Carrier Corp | Heat pump defrost control |
US2968167A (en) * | 1957-07-24 | 1961-01-17 | Ranco Inc | Defroster control |
US3359750A (en) * | 1965-12-02 | 1967-12-26 | Gen Motors Corp | Refrigerator with defrost when necessary system |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2492070A1 (en) * | 1980-10-14 | 1982-04-16 | Gen Electric | DEGREASING CONTROL DEVICE FOR HEAT PUMP |
EP0142663A2 (en) * | 1983-09-20 | 1985-05-29 | MAN Technologie Aktiengesellschaft | Defrost control method and device for heat pumps |
EP0142663A3 (en) * | 1983-09-20 | 1985-07-03 | M.A.N. Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft | Defrost control method and device for heat pumps |
Also Published As
Publication number | Publication date |
---|---|
GB1569835A (en) | 1980-06-18 |
DE2637129A1 (en) | 1978-02-23 |
NL7709087A (en) | 1978-02-21 |
SE7709276L (en) | 1978-02-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |