GB1395194A - Heat pump type air conditioning systems - Google Patents

Heat pump type air conditioning systems

Info

Publication number
GB1395194A
GB1395194A GB4111372A GB4111372A GB1395194A GB 1395194 A GB1395194 A GB 1395194A GB 4111372 A GB4111372 A GB 4111372A GB 4111372 A GB4111372 A GB 4111372A GB 1395194 A GB1395194 A GB 1395194A
Authority
GB
United Kingdom
Prior art keywords
heat exchanger
refrigerant
valve
coil
indoor
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
Application number
GB4111372A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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.)
Filing date
Publication date
Priority claimed from JP6910571A external-priority patent/JPS5024451B2/ja
Priority claimed from JP7368471A external-priority patent/JPS5114173B2/ja
Priority claimed from JP8203671A external-priority patent/JPS4847485A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB1395194A publication Critical patent/GB1395194A/en
Expired legal-status Critical Current

Links

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
    • F24F3/12—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 characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—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 characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/153—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 characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification with subsequent heating, i.e. with the air, given the required humidity in the central station, passing a heating element to achieve the required temperature
    • 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
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/008—Refrigerant heaters
    • 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
    • F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
    • F25B2341/001—Ejectors not being used as compression device
    • F25B2341/0011—Ejectors with the cooled primary flow at reduced or low pressure
    • 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
    • F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
    • F25B2341/001—Ejectors not being used as compression device
    • F25B2341/0014—Ejectors with a high pressure hot primary flow from a compressor discharge

Abstract

1395194 Heat pumps; space heaters or coolers MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 5 Sept 1972 [6 Sept 1971 8 Sept 1971 20 Sept 1971] 41113/72 Headings F4H and F4V A heat pump system air conditioner comprises a refrigerant compressor C, a refrigerant flow reversal valve 11, a gas tube 12, an indoor heat exchanger or coil 13, a combined check valve and expansion valve 25 an outdoor heat exchanger 15 and a suction gas tube 14 connected in the order named, and further comprising means for feeding a portion of the refrigerant liquid leaving the indoor heat exchanger 13 back to its inlet via a heater 33 to increase the heating effect of the heat exchanger at start-up or when the outside temperature is low. The liquid is led from a receiver 23 by a pump 32 to the heater which comprises an exchanger having a heat exchange coil (not shown) surrounded by a heat accumulating medium, e.g. water, and is conducted by by-pass tubes 35, 37 and a valve 36 to the tube 12. During the cooling cycle flow through the by-pass and heater 33 is prevented by closure of the valve 36 and flow of refrigerant through the system is reversed, reversal of flow also achieves hot gas defrosting of the outdoor heat exchanger coil 15 when operating as a condenser coil, the condensed refrigerant from the coil 15 passing through the valve 25 into the receiver 23 for passage through the heat exchanger 33 for evaporation by the heat from the heat accumulating medium, and then through tubes 35, 37, valve 37, tube 12 and the reversal valve 11 to an accumulator (not shown) and suction gas tube 28 into the compressor C. An ejector means may be provided in the gas tube for ejecting the refrigerant liquid flowing from the receiver into the refrigerant gas flowing from the compressor to the indoor coil and the heating means in the heat exchanger 33 may be electrical or formed as a burner. The tapped-off portion of refrigerant leaving the indoor heat exchanger may be mixed with the refrigerent stream passing to the indoor heat exchanger and the mixture passed through the heat exchanger 33. Air to be heated or cooled is circulated over the indoor and outdoor heat exchangers by fans, and in a further embodiment the indoor heat exchanger comprises two coils, one acting as an evaporator and the other as a condenser to achieve dehumidification of the air flowing thereover.
GB4111372A 1971-09-06 1972-09-05 Heat pump type air conditioning systems Expired GB1395194A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP6910571A JPS5024451B2 (en) 1971-09-06 1971-09-06
JP7368471A JPS5114173B2 (en) 1971-09-20 1971-09-20
JP8203671A JPS4847485A (en) 1971-10-16 1971-10-16

Publications (1)

Publication Number Publication Date
GB1395194A true GB1395194A (en) 1975-05-21

Family

ID=36587201

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4111372A Expired GB1395194A (en) 1971-09-06 1972-09-05 Heat pump type air conditioning systems

Country Status (5)

Country Link
US (1) US3777508A (en)
AU (1) AU452199B2 (en)
DE (1) DE2243784C3 (en)
GB (1) GB1395194A (en)
IT (1) IT965225B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3220978A1 (en) * 1981-06-05 1983-02-10 Mitsubishi Denki K.K., Tokyo HEAT PUMP AIR CONDITIONING
DE3247302A1 (en) * 1981-12-22 1983-06-30 Mitsubishi Denki K.K., Tokyo COOLING AND HEATING DEVICE
GB2258302A (en) * 1991-07-10 1993-02-03 Toshiba Kk Air conditioning apparatus with dehumidifying fuction

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3978684A (en) * 1975-04-17 1976-09-07 Thermo King Corporation Refrigeration system
US4055963A (en) * 1975-06-25 1977-11-01 Daikin Kogyo Co., Ltd. Heating system
SE395175B (en) * 1975-08-05 1977-08-01 Stal Laval Turbin Ab ENERGY UNIT FOR SUPPLY OF DISTRICT HEATING SYSTEM
US3993121A (en) * 1975-12-29 1976-11-23 Medlin Glenn D Heat pump conversion system for electric furnace
US4065938A (en) * 1976-01-05 1978-01-03 Sun-Econ, Inc. Air-conditioning apparatus with booster heat exchanger
DE2709343C2 (en) * 1976-03-05 1983-07-28 Hitachi, Ltd., Tokyo Heat pump system
US4165037A (en) * 1976-06-21 1979-08-21 Mccarson Donald M Apparatus and method for combined solar and heat pump heating and cooling system
US4112705A (en) * 1977-02-18 1978-09-12 Electric Power Research Institute, Inc. Fuel fired supplementary heater for heat pump
US4191023A (en) * 1977-02-18 1980-03-04 Electric Power Research Institute, Inc. Fuel fired supplementary heater for heat pump
DE2718265C3 (en) * 1977-04-25 1982-06-16 Burger, Manfred R., 8023 Pullach Method for the optional heating or cooling of a fluid flow and a heat pump for its implementation
US4202493A (en) * 1978-01-23 1980-05-13 Antonino Franchina Heating system having solar assist
US4141490A (en) * 1978-01-23 1979-02-27 Antonino Franchina Heating system
US4249390A (en) * 1979-08-23 1981-02-10 Jones William M Air conditioning system
US4291545A (en) * 1980-01-10 1981-09-29 Worsham Iii James R Absorption heat pump
JPS57175858A (en) * 1981-04-23 1982-10-28 Mitsubishi Electric Corp Air conditionor
US4644756A (en) * 1983-12-21 1987-02-24 Daikin Industries, Ltd. Multi-room type air conditioner
KR0136768B1 (en) * 1992-07-16 1998-07-01 강진구 Heating apparatus for air-conditioner
JP4042637B2 (en) * 2003-06-18 2008-02-06 株式会社デンソー Ejector cycle
US20070068188A1 (en) * 2005-09-29 2007-03-29 Tecumseh Products Company Ice maker circuit
US7503184B2 (en) * 2006-08-11 2009-03-17 Southwest Gas Corporation Gas engine driven heat pump system with integrated heat recovery and energy saving subsystems
FR2978816B1 (en) 2011-08-04 2018-06-22 Presticlim INSTALLATION AND METHOD FOR OPTIMIZING THE OPERATION OF A HEAT PUMP INSTALLATION
US9534818B2 (en) 2012-01-17 2017-01-03 Si2 Industries, Llc Heat pump system with auxiliary heat exchanger
CN103776089A (en) * 2012-10-18 2014-05-07 珠海格力电器股份有限公司 Air conditioning device and defrosting method
US10330358B2 (en) 2014-05-15 2019-06-25 Lennox Industries Inc. System for refrigerant pressure relief in HVAC systems
US9976785B2 (en) * 2014-05-15 2018-05-22 Lennox Industries Inc. Liquid line charge compensator
US10240838B2 (en) * 2014-08-29 2019-03-26 Emerson Climate Technologies, Inc. Variable speed compressor control with sound-controlled defrost mode
US11273230B1 (en) * 2017-04-10 2022-03-15 Ricciardi Carl L Multi-function product disinfection cabinet
US10663199B2 (en) 2018-04-19 2020-05-26 Lennox Industries Inc. Method and apparatus for common manifold charge compensator
US10830514B2 (en) 2018-06-21 2020-11-10 Lennox Industries Inc. Method and apparatus for charge compensator reheat valve
DE102020211244A1 (en) 2020-09-08 2022-03-10 Robert Bosch Gesellschaft mit beschränkter Haftung Outdoor unit for a heat pump or an air conditioner

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2641908A (en) * 1950-09-02 1953-06-16 Francis L La Porte Refrigerator defrosting means
US2713249A (en) * 1953-04-13 1955-07-19 Fred J Schordine Liquid defrosting system and the like
US3133424A (en) * 1962-11-29 1964-05-19 Westinghouse Electric Corp Controls for heat pumps having air exposed outdoor air coils
US3240028A (en) * 1963-04-26 1966-03-15 Howard W Redfern Heat pump defrosting system
US3308877A (en) * 1965-07-01 1967-03-14 Carrier Corp Combination conditioning and water heating apparatus
US3398785A (en) * 1966-06-03 1968-08-27 Robert V. Anderson Combination heating and cooling unit
US3589437A (en) * 1968-12-24 1971-06-29 Daikin Ind Ltd Heat pump system air conditioners
US3681934A (en) * 1970-09-11 1972-08-08 Bangor Punta Operations Inc Refrigeration and defrost system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3220978A1 (en) * 1981-06-05 1983-02-10 Mitsubishi Denki K.K., Tokyo HEAT PUMP AIR CONDITIONING
DE3247302A1 (en) * 1981-12-22 1983-06-30 Mitsubishi Denki K.K., Tokyo COOLING AND HEATING DEVICE
GB2258302A (en) * 1991-07-10 1993-02-03 Toshiba Kk Air conditioning apparatus with dehumidifying fuction
US5231845A (en) * 1991-07-10 1993-08-03 Kabushiki Kaisha Toshiba Air conditioning apparatus with dehumidifying operation function
GB2258302B (en) * 1991-07-10 1995-05-10 Toshiba Kk Air conditioning apparatus with dehumidifying operation function

Also Published As

Publication number Publication date
DE2243784B2 (en) 1977-07-21
IT965225B (en) 1974-01-31
AU4629772A (en) 1974-03-14
DE2243784A1 (en) 1973-03-22
AU452199B2 (en) 1974-08-29
US3777508A (en) 1973-12-11
DE2243784C3 (en) 1979-04-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PE20 Patent expired after termination of 20 years