IT1033195B - DEVICE FOR PROTECTION AGAINST FREEZING IN A SYSTEM WITH HEAT PUMP - Google Patents

DEVICE FOR PROTECTION AGAINST FREEZING IN A SYSTEM WITH HEAT PUMP

Info

Publication number: IT1033195B
Authority: IT; Italy
Prior art keywords: heat pump; protection against; against freezing; freezing; protection
Prior art date: 1974-06-12

Application number

IT20658/75A

Other languages

Italian (it)

Original Assignee

American Air Filter Co

Priority date (The priority date 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 date listed.)

1974-06-12

Filing date

1975-02-25

Publication date

1979-07-10

1974-06-12 Priority claimed from US05/478,530 external-priority patent/US4171621A/en

1975-02-25 Application filed by American Air Filter Co filed Critical American Air Filter Co

1979-07-10 Application granted granted Critical

1979-07-10 Publication of IT1033195B publication Critical patent/IT1033195B/en

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/001—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems in which the air treatment in the central station takes place by means of a heat-pump or by means of a reversible cycle
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers

Landscapes

Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Combustion & Propulsion (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Other Air-Conditioning Systems (AREA)

IT20658/75A 1974-06-12 1975-02-25 DEVICE FOR PROTECTION AGAINST FREEZING IN A SYSTEM WITH HEAT PUMP IT1033195B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US05/478,530 US4171621A (en)	1973-03-21	1974-06-12	Freeze protection device in heat pump system

Publications (1)

Publication Number	Publication Date
IT1033195B true IT1033195B (en)	1979-07-10

Family

ID=23900313

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT20658/75A IT1033195B (en)	1974-06-12	1975-02-25	DEVICE FOR PROTECTION AGAINST FREEZING IN A SYSTEM WITH HEAT PUMP

Country Status (11)

Country	Link
BE (1)	BE827216A (en)
BR (1)	BR7503691A (en)
CA (1)	CA998251A (en)
DD (1)	DD118167A5 (en)
DE (1)	DE2513455A1 (en)
DK (1)	DK263475A (en)
ES (1)	ES435692A1 (en)
FR (1)	FR2280032A2 (en)
GB (1)	GB1457732A (en)
IT (1)	IT1033195B (en)
SE (1)	SE7504113L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
IT1214855B (en) *	1984-03-13	1990-01-18	Raif Spa	REFRIGERANT CIRCUIT FOR THE TREATMENT OF LIQUIDS, USING A CONCENTRIC ELEMENT EVAPORATOR-EXCHANGER WITHIN WHICH THE FLUID RESPECTIVES MOVE IN THE OPPOSITE SENSE TO THE OTHER, IN THE ABOVE-CURRENT WAY.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2136813A (en) *	1935-09-12	1938-11-15	Dewey H Dolison	Liquid cooler control
US3404728A (en) *	1966-04-08	1968-10-08	Singer Co	Air conditioning system
GB1307604A (en) *	1970-03-05	1973-02-21	Temperature Ltd	Heat pumps units

1975
- 1975-02-24 CA CA220,934A patent/CA998251A/en not_active Expired
- 1975-02-25 IT IT20658/75A patent/IT1033195B/en active
- 1975-03-17 ES ES435692A patent/ES435692A1/en not_active Expired
- 1975-03-26 BE BE154799A patent/BE827216A/en unknown
- 1975-03-26 DE DE19752513455 patent/DE2513455A1/en active Pending
- 1975-04-02 FR FR7510335A patent/FR2280032A2/en active Granted
- 1975-04-10 SE SE7504113A patent/SE7504113L/en not_active Application Discontinuation
- 1975-05-16 GB GB2095375A patent/GB1457732A/en not_active Expired
- 1975-06-10 DD DD186556A patent/DD118167A5/xx unknown
- 1975-06-11 BR BR4740/75D patent/BR7503691A/en unknown
- 1975-06-11 DK DK263475A patent/DK263475A/en unknown

Also Published As

Publication number	Publication date
CA998251A (en)	1976-10-12
DE2513455A1 (en)	1976-01-02
ES435692A1 (en)	1976-12-01
SE7504113L (en)	1975-12-15
BE827216A (en)	1975-07-16
FR2280032B2 (en)	1979-01-19
BR7503691A (en)	1976-06-29
GB1457732A (en)	1976-12-08
FR2280032A2 (en)	1976-02-20
DK263475A (en)	1975-12-13
DD118167A5 (en)	1976-02-12

Publication	Publication Date	Title
IT1009936B (en)	1976-12-20	FREEZING PROTECTION DEVICE IN A HEAT PUMP SYSTEM
SE387162B (en)	1976-08-30	HOSE PUMP
IT1028113B (en)	1979-01-30	DEVICE OF MAINTENANCE IN THE EXTENDED CONDITION OF A CATETERS
IT1051451B (en)	1981-04-21	ADJUSTMENT DEVICE FOR HEAT PUMP
NL7500163A (en)	1975-07-09	VACUUM PUMP SYSTEM.
SE411774B (en)	1980-02-04	FOR A CONDUCT OR SIMILAR INTENDED DAMAGE DEVICE
IT1044693B (en)	1980-04-21	IMPROVEMENTS IN LUBRICANTS FOR COLD ALUMINUM PROCESSING
IT1035324B (en)	1979-10-20	IMPROVEMENT IN PUMP SYSTEMS FOR THE COMMAND OF MANAGEMENT ORGANIDES FOR NATNANTS
IT1052883B (en)	1981-07-20	IMPROVEMENT IN HEAT PUMP DEVICES FOR HEATING ENVIRONMENTS
IT1041587B (en)	1980-01-10	CONCRETE PUMP
IT999048B (en)	1976-02-20	FREEZING PROTECTION DEVICE IN A HEAT PUMP SYSTEM
IT1046382B (en)	1980-06-30	PUMP
IT1041231B (en)	1980-01-10	CURRENT LIMITING DEVICE IN PARTICULAR FOR PROTECTION AGAINST SHORT-CIRCUITS
IT1033195B (en)	1979-07-10	DEVICE FOR PROTECTION AGAINST FREEZING IN A SYSTEM WITH HEAT PUMP
IT1075606B (en)	1985-04-22	HEAT PUMP
BE833396A (en)	1976-03-12	HOSE PUMP
AT355260B (en)	1980-02-25	HEAT PUMP SYSTEM
AT329971B (en)	1976-06-10	PERISTALTIC PUMP
IT1083795B (en)	1985-05-25	HEAT PUMP
SE416490B (en)	1981-01-05	VOLYMETRIC PUMP
IT1027534B (en)	1978-12-20	DEVICE FOR KEEPING THE VACUUM LEVEL CONSTANT IN A VACUUM SYSTEM
IT1084856B (en)	1985-05-28	HEAT PUMP SYSTEM
AT329972B (en)	1976-06-10	MAIN COOLANT PUMP
IT1037116B (en)	1979-11-10	EXPANSION DEVICE FOR A HEAT PUMP
SU490947A1 (en)	1975-11-05	Pump unit