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JP2008014603 |
To solve a problem wherein a slight amount of intrusion water is freezed by abrupt pressure changes in an upstream and an downstream of a valve device to bring a valve into a locked condition and to disturb an operation, by intrusion of ...
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JP2008008505 |
To prevent temperature rise of a cooled space when power supply is interrupted in an ejector type refrigerating cycle comprising an electric actuator.A normal close type opening and closing valve 16 closed in non-power distribution is di...
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JP2008008560 |
To provide a vapor compression type cycle capable of uniformizing refrigerant temperatures in the first and second evaporators when defrosted.This vapor compression type cycle provided with an ejector 14 and the plurality of evaporators ...
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JP2008002695 |
To improve indoor amenity by continuing indoor heating even during a defrosting operation, in a heat pump device having both of a heating function and a snow melting function.A refrigerant circuit 20 is provided with an indoor heat excha...
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JP2007187376 |
To provide an air conditioner that can reduce refrigerant noise and reduce power consumption for a defrosting operation.In a defrosting operation, the air conditioner compares a temperature tempA of a refrigerant circuit of an outdoor he...
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JP2007187431 |
To reduce time required to defrost utilization side heat exchangers and to reduce power consumption in the defrosting operation of a refrigerating device carrying out a two-stage compression refrigerating cycle to cool the inside of a re...
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JP2007178106 |
To reduce frequent starts and stops of a compressor by improving control of a defrosting operation.This cooling device 1 has a refrigerating cycle configurated by connecting an outdoor unit 2 having the compressor 6 and an outdoor heat e...
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JP2007178114 |
To provide a refrigerant heating device capable of reducing system costs even when a plurality of object portions are heated.A power unit 60 as a refrigerant heating device for heating a refrigerant circulating in refrigerant piping 20, ...
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JP2007170695 |
To provide a heat pump device capable of performing defrosting without stopping a heating operation.In a refrigerant circuit 6 provided with a compressor 1 for compressing a refrigerant, a refrigerant heat exchanger 2 exchanging heat bet...
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JP2007170758 |
To provide a refrigerating device capable of cooling a cooled space even during defrosting an evaporator.Two evaporators 25 are disposed for cooling the inside of a showcase main body 10, and in defrosting the evaporators 25, a part of h...
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JP2007170694 |
To provide a heat pump device capable of performing defrosting without stopping a heating operation.In a refrigerant circuit 6 provided with a compressor 1 for compressing a refrigerant, a refrigerant heat exchanger 2 exchanging heat bet...
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JP2007162992 |
To perform an adequate defrosting operation by performing heat recovery for utilizing cryogenic power obtained in defrosting an evaporator, for cooling the other evaporator, in a refrigeration unit comprising a refrigerant circuit, where...
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JP2007163064 |
To solve a problem wherein, in a method of using a plurality of glass tube heaters to ensure safety against refrigerant leakage in a cooling system using a flammable refrigerant, the glass tubes hinder the flow of cold air about an evapo...
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JP2007163024 |
To efficiently collect impurities remaining in a reused connection duct, thereby reducing the load on the workers of reforming construction work, and to improve reliability and performance.After a first gas soluble with respect to the su...
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JP2007162961 |
To surely defrost an evaporator for refrigerating having various lengths at airflow upstream-side ends of plate fins.This evaporator for a refrigerating machine comprises a number of plate fins 27 stacked in a direction orthogonal to the...
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JP2007155296 |
To provide a heat pump type water heater capable of performing defrosting with a simple constitution.A circulation path 12 for circulating a refrigerant, includes a first piping path 12a disposed for directly supplying a high-temperature...
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JP2007155261 |
To shorten dehumidifying time to prevent lowering of room temperature during heating operation in an unmanned state.A controller 6 executes an unmanned operation mode for performing heating operation for maintaining the room temperature ...
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JP2007155189 |
To provide a heat pump type water heater capable of securing a stable tapping temperature even when defrosting operation of a heat pump device is started during hot water supply, and to provide a controller for the heat pump type water h...
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JP2007155252 |
To provide an air conditioner capable of performing defrosting operation while continuing heating operation, and capable of jumboizing it while maintaining miniaturization.The air conditioner is provided with a first bypass circuit 6 for...
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JP2007155299 |
To eliminate unnecessary defrosting operation by accurately determining frosting even at the start of heating operation regardless of the length of a pipe.This air conditioner comprises a first temperature detector 9 detecting outdoor he...
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JP2007155259 |
To provide a refrigerant heating apparatus with which post installation is easy and which is capable of improving heat recovering efficiency.An option heater unit 10 for heating a refrigerant is equipped with a liquid pipe 12, a gas pipe...
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JP3971372 |
To surely and efficiently remove remaining oil and dust in an existing pipe, in washing the existing refrigerant pipe after recovering the refrigerant to replace a new refrigerant machine for an old refrigerant machine in an air-cooled s...
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JP3969154 |
To effectively prevent freezing of pipes and return pipes of every functional part of a storage-type hot water supply system when the ambient temperature is low and to eliminate the sneak of cold water into the hot water tank during hot ...
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JP2007147242 |
To defrost an outdoor heat exchanger without impairing indoor comfort, simultaneously to properly control the degree of superheating of a sucked refrigerant of a compressor during the defrosting operation to secure reliability of an air ...
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JP2007139350 |
To provide an air conditioner, capable of performing appropriate deicing operation with excellent heating performance.In this air conditioner comprising an indoor unit (not shown), an outdoor unit (not shown), an outside air temperature ...
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JP2007132618 |
To provide a refrigerating circuit capable of preventing generation of water vapor due to melting of frost on an evaporator at the time of defrosting.The refrigerating circuit is provided with: a liquid injection solenoid valve 14 in the...
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JP2007127302 |
To reliably perform defrosting in a refrigeration unit.This refrigeration unit 1 comprises a refrigerant circuit 10 constituted by successively connecting compressors 11a, 11b, 11c, an outdoor heat exchanger 13, refrigerating expansion v...
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JP2007127328 |
To provide a circuit capable of using a waste heat recovering unit as an evaporator in a piping cleaning operation, though an outdoor heat exchanger and the waste heat recovering unit are arranged in parallel, in an engine drive type hea...
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JP3953377 |
To provide an air-conditioner for controlling an air-conditioning function irrespective of an operating condition of a compressor to circulate a first heat transfer medium in a first circulation circuit. This air-conditioner comprises a ...
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JP3954875 |
To provide a refrigerant circuit device using a multistage compression type rotary compressor wherein an abnormal increase of a pressure on a refrigerant discharge side of a first rotary compressing element is prevented. This refrigerant...
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JP3952308 |
To reduce cost of equipment and operation in response to air conditioning of various special environments. This heat pump type air conditioner has first and second compression type heat pumps A and B; and is attached with a third compres...
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JP2007107853 |
To provide an air conditioner performing defrosting operation while continuing heating operation.This air conditioner is provided with a heat pump type freezing cycle, in which a compressor 1, a four-way valve 2, an indoor heat exchanger...
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JP2007107771 |
To provide a refrigeration cycle device, in which deterioration of heat transfer performance of an evaporator is prevented by mixing no lubricating oil to the evaporator in defrosting operation, and deterioration of cycle efficiency can ...
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JP2007100988 |
To provide a deicing device for a refrigerator capable of removing ice in a short time by ejecting heated deicing water to an evaporator and melting ice attached to a surface of the evaporator by heat and removing the ice by the dynamic ...
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JP3943092 |
To provide a multi-type air-conditioner with a plurality of outdoor units and a plurality of indoor units connected by common piping for conveying a refrigerant, and a control method therefor. This air-conditioner includes the first outd...
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JP3942303 |
To automatically add a required amount of corrosion inhibitor for suppressing the corrosion of piping where an absorption liquid flows. At least the temperature of a high-temperature regenerator 4, the regeneration pressure of a high-tem...
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JP3943102 |
To provide a heat exchanger that prevents frost from being formed by removing water by mixing supersaturated liquid and antifreeze liquid before moisture on a surface of a heat exchanger becomes frost crystal nucleus through supersaturat...
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JP2007093071 |
To provide a cooling device having improved operating efficiency by preventing the formation of frost itself on an evaporator.The cooling device having the evaporator 2 for absorbing heat from drafting air to produce a cooling effect com...
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JP2007083877 |
To provide an air-conditioner having a cold accumulator which suppresses the degradation of the air-conditioning feeling in defrost operation while maintaining cold accumulation capacity.In the air-conditioner having the cold accumulator...
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JP3932913 |
To provide a heat pump type water heater capable of shortening a defrosting time and avoiding a liquid return. A compressor 25, a water heat exchanger 26 for heating hot water, an electric expansion valve 27, and an air heat exchanger 28...
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JP2007071478 |
To provide a heat pump device capable of performing a heating operation even during a defrosting operation.As this heat pump device comprises a second evaporator 8 mounted between a first evaporator 5 and a refrigerant suction side of a ...
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JP2007071471 |
To provide a hot-water supply heating device 11 capable of performing heating operation with sufficient heating capacity even in a defrosting operation.A heating circuit 55 has a first heat exchanger 52a for heating and a second heat exc...
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JP3930094 |
To more improve a protection for a heating cable than a known evaporator and achieve a good heat transfer between the heating cable and a tubular element without requiring the assistance of a heat transfer member. An evaporator 10 has an...
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JP2007057224 |
To provide an improving method for preventing corrosion of a metal body in a lithium bromide aqueous solution.In the method for preventing corrosion of an object metal body in the lithium bromide aqueous solution, the method sets the mag...
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JP2007057148 |
To accurately detect a decrease in heating ability by using a temperature detecting means installed at the entrance of an evaporator.The temperature detecting means installed at the entrance of the evaporator is used to enhance the accur...
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JP2007051840 |
To provide an air conditioner performing a defrosting operation while continuing a heating operation.The air conditioner is provided with a first by-pass circuit 6 connecting the suction side of a compressor 1 to a part between an indoor...
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JP2007051825 |
To provide an air-conditioner that continues a heating operation while performing a defrosting operation.A first bypass circuit 6 is provided for connecting the portion of a heat-pump-type refrigerating cycle between an indoor heat excha...
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JP2007051805 |
To provide an air conditioner performing a defrosting operation while continuing a heating operation.The air conditioner is provided with a first by-pass circuit 6 connecting the suction side of a compressor 1 to a part between an indoor...
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JP2007051821 |
To provide an air-conditioner with a refrigerant heater, which performs defrosting operation even if an abnormality has occurred at the refrigerant heater.A refrigerant heater temperature sensor 21 is provided as a heater abnormality det...
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JP2007051839 |
To provide an air conditioning unit capable of performing defrosting operation while continuing heating operation and improving comfortableness by minimizing change in outlet temperature.This air conditioning unit comprises a first bypas...
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