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JP7427116B2 |
In a refrigeration cycle apparatus (100), at start-up of heating, a controller (10) sets a first four-way valve (6) to an ON state and sets a second four-way valve (7) to an OFF state so as to form a flow path in which refrigerant flows ...
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JP2024012950A |
The present invention provides an air conditioner that can reliably unify all outdoor units into a cooling/heating switching type or a cooling/heating free type. [Solution] An air conditioner according to one embodiment of the present in...
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JP7423819B2 |
A refrigeration cycle apparatus (110) includes a flow path switching apparatus (7). In a first operation mode, the flow path switching apparatus (7) is configured to cause a second port (P2) and a second refrigerant port (5b) of a second...
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JP2024007011A |
[assignment]Provided is a battery temperature control system that can adjust the temperature of a plurality of battery cells and an external heat medium, and can reduce temperature variations among the plurality of battery cells. [Soluti...
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JP7414951B2 |
A heat exchanger for an air conditioner for which a zeotropic refrigerant mixture is used is obtained, and the heat exchanger, when used as an evaporator, enables reduction of the amount of required refrigerant without deteriorating the ...
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JP7413723B2 |
To reduce a manufacturing cost.A switching unit 1 comprises: an electrical component box 42 in which a control circuit for controlling a plurality of coil parts for driving a plurality of on-off valves provided in a plurality of refriger...
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JP7413896B2 |
To provide an air conditioner capable of estimating an amount of leaked refrigerant in a case where refrigerant leakage occurs in a refrigerant circuit.An outdoor machine controller 200 is configured to, when any one heat exchanger of an...
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JP7415026B2 |
A refrigeration cycle apparatus (11) includes: a refrigerant circuit (20) configured to circulate refrigerant; and a controller (100) configured to control the refrigerant circuit (20). The refrigerant circuit (20) includes a compressor ...
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JP2024002747A |
An object of the present invention is to simplify a flow path switching mechanism. [Solution] A flow path switching mechanism 30 has a first port P1, a second port P2, a third port P3, and a fourth port P4. Two or more on-off valves V ar...
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JP2024001400A |
[Problem] To properly cool a vehicle battery and air condition the vehicle interior, and effectively heat the interior of the vehicle even at low temperatures. A first refrigerant circuit 1 circulates a first refrigerant and uses a batte...
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JP7407920B2 |
A refrigeration cycle apparatus (100) comprises a refrigerant circuit (C1) and a refrigerant storage circuit (C2). In the refrigerant circuit (C1), a compressor (1), an outdoor heat exchanger (2), an expansion valve (3), and an indoor he...
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JP7406165B2 |
A refrigeration cycle system, a heat source unit, or a refrigeration cycle apparatus using a carbon dioxide refrigerant enables supply of a sufficient amount of a high-pressure refrigerant to a plurality of utilization heat exchangers. A...
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JP7406124B2 |
To continue cooling operation by suitable cooling performance when a heat load of an object space of cooling becomes low, and to prevent the deterioration of operation efficiency.An air-conditioner 1 is equipped with an indoor heat excha...
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JP2023181169A |
To provide a refrigeration cycle apparatus for an automobile which is mounted with a coolant suitable for a refrigeration cycle apparatus for an automobile.A refrigeration cycle apparatus 101 for an automobile includes at least HFO-1132(...
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JP2023181171A |
To provide a refrigeration cycle apparatus for an automobile which is mounted with a coolant suitable for a refrigeration cycle apparatus for an automobile.A refrigeration cycle apparatus 1 for an automobile includes a coolant circuit 10...
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JP7401800B2 |
The present invention suggests a refrigeration cycle device that uses a non-azeotropic mixed refrigerant and that is capable of both maintaining heat exchange efficiency with a heat exchanger and suppressing decreases in the performance ...
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JP2023179585A |
To provide a refrigeration cycle device for an automobile, which is loaded with a refrigerant suitable for the refrigeration cycle device for the automobile.A refrigeration cycle device 1 for an automobile contains at least HFO-1132 (E) ...
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JP7400894B1 |
[Problem] To suppress a decrease in indoor heating capacity during defrosting heating operation. [Solution] The air conditioner of the embodiment includes a refrigerant circuit that circulates refrigerant, a compressor that compresses th...
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JP7398617B2 |
To provide an air conditioner capable of being operated to maintain comfortable temperature by continuing cooling operation.An air conditioner includes a refrigeration cycle configured by connecting a compressor, a four-way valve, an ind...
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JP7394876B2 |
An air conditioning apparatus includes an outdoor device that is configured to circulate refrigerant and that includes a compressor, an outdoor heat exchanger and three pipes, a high pressure gas pipe, a low pressure gas pipe and a liqui...
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JP7390761B2 |
A heat pump system and a cooling/heating system using same, the heat pump system being able to prevent the occurrence of a vortex in a process in which fluid flows into a heat storage tank, and to supply and maintain constant-temperature...
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JP2023171399A |
To provide an open loop type and direct expansion type heat pump device having low cost and furthermore having improved heat exchange efficiency compared to a closed loop type heat pump device.A multi heat source-heat pump device include...
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JP2023168866A |
To achieve cooling a plurality of batteries evenly and securing warm-up capacity of the plurality of batteries, while suppressing increase in cost.A battery temperature control system (1) includes a refrigeration cycle (10), and a contro...
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JP7386613B2 |
To provide a heat exchanger capable of improving heat exchanging performance in being used as an evaporator, and an air conditioner.An indoor heat exchanger 5 includes a main heat exchange portion 7 and an auxiliary heat exchange portion...
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JP7378685B1 |
A refrigeration cycle device according to the present disclosure includes a heat medium circuit in which a heat medium circulates. The heat medium circuit includes a plurality of load-side heat exchangers that exchange heat between a fir...
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JP7377362B2 |
An air conditioning apparatus includes a bypass pipe connecting a first bypass branch part of a first connection pipe, through which high-pressure refrigerant flows, with a second bypass branch part of a third connection pipe, through wh...
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JP7373814B2 |
To provide an air conditioner preventing reduction in an oil amount of a compressor to prevent failure of the compressor when switching a defrosting operation to a heating operation.An air conditioner includes: a compressor 11; an outdoo...
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JP7374319B2 |
This circulation circuit circulates a fluid medium which is liquid at normal temperature, and comprises: a plurality of capsules in which a heat storage material the phase of which changes between a solid state and a liquid state is enca...
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JP7373379B2 |
To improve a slide type selector valve in which a valve housing is formed by a cylinder part and cap parts at both ends of the cylinder part to improve pressure resistance of attachment parts between the cylinder part and the cap parts.I...
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JP7371440B2 |
To downsize a control part.A cooling/heating switching device comprises: a pipe part comprising a plurality of refrigerant pipes connected to a plurality of indoor units and at least one outdoor unit, and a plurality of opening/closing v...
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JP7371436B2 |
To properly radiate the heat of a plurality of coils driving a plurality of opening/closing valves.A switching unit 1 comprises: a plurality of opening/closing valves; a plurality of coil portions respectively driving the plurality of op...
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JP7370505B1 |
The air conditioner is configured by connecting a first indoor unit and a heat medium unit in parallel to an outdoor unit through refrigerant piping, and includes a refrigerant circuit in which refrigerant circulates. The first indoor un...
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JP2023544849A |
This application discloses a cooling central air conditioning system with radiant heat dissipation and radiant heat collection. including a compressor (3), a liquid storage (4), an indoor unit (1) and an outdoor unit (2) connected in seq...
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JP2023156370A |
To prevent a failure of an air conditioning device caused by freezing of water.An air conditioning device comprises a first cycle unit (1), a second cycle unit (2), and a control device (3). In the first cycle unit (1), a first refrigera...
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JP7367213B2 |
In a refrigeration cycle apparatus (1), a refrigerant pipe (31) is connected to a compressor (3), a first heat exchanger (5), an expansion valve (9), a second heat exchanger (11), a heat absorber (17), and the compressor (3) sequentially...
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JP2023543521A |
Heat pump system for controlling internal temperature of buildings. The system includes a compressor, a first heat exchanger, an expansion device, and a second heat exchanger fluidly coupled to each other by a flow of refrigerant to defi...
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JP7361777B2 |
A refrigeration cycle apparatus (100) includes a compressor (1), a first heat exchanger (2), a second heat exchanger (4), an expansion valve (3), a flow rate adjuster (130), and a controller (10). The flow rate adjuster (130) adjusts an ...
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JP2023543085A |
Novel thermal systems using removable heat pump modules reduce service time and complexity, increase the range of safely available refrigerants, increase the efficiency of many thermal systems, and create new industrial applications. Use...
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JP7359361B2 |
To provide an open loop type and direct expansion type heat pump device having low cost and furthermore having improved heat exchange efficiency compared to a closed loop type heat pump device.The heat pump device is provided that includ...
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JP7357793B2 |
A refrigeration cycle apparatus includes a compressor (10), a first heat exchanger (20), a decompressing device (30), a second heat exchanger (40), a first switching valve (60), a second switching valve (70), and a controller. The first ...
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JP2023143814A |
To provide a system and method for providing domestic hot water and/or space heating within a building.The system, which can be used in a method for providing domestic hot water and/or space heating within a building, is characterized in...
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JP2023542407A |
This application discloses a single-stage carbon dioxide multi-type heating and cooling multifunctional central air conditioner. The single-stage carbon dioxide circulation system includes an outdoor unit and a plurality of terminal heat...
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JP2023140445A |
To provide a chilling unit capable of speedily detecting abnormality of a water heat exchanger.A chilling unit comprises: a coolant circuit which has a compressor compressing a coolant, an air heat exchanger performing heat exchange betw...
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JP7357137B1 |
An object of the present invention is to more easily improve the efficiency of heat exchange in an air conditioner using a non-azeotropic mixed refrigerant. [Solution] An air conditioner using a non-azeotropic mixed refrigerant, which in...
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JP7356057B2 |
A refrigeration cycle apparatus including a first refrigerant circuit and a second refrigerant circuit so as to improve the efficiency of operations is provided. A first refrigerant circuit (10) using a first refrigerant having a pressur...
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JP2023139800A |
To obtain an air conditioner which can inhibit deterioration of a compressor in heating during which a temperature of outside air is relatively low.An air conditioner according to an embodiment includes: a first compressor provided at a ...
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JP7356049B2 |
An air conditioner in which pressure loss in a refrigerant pipe or the like makes it inefficient to use an ejector in cooling operation improves efficiency in cooling operation. An air conditioner (1) includes an ejector (50) that raises...
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JP7354856B2 |
A vehicle air conditioner includes a heat pump system and an air conditioner ECU that controls the heat pump system. An operation mode of the heat pump system includes an air cooling mode, an air heating mode, a serial dehumidification a...
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JP7350892B2 |
A flow path switch (240) is provided with a first opening (P1) to a fourth opening (P4). An inner heat exchanger (260) is provided with a first inner flow path (261a) and a second inner flow path (261b). A discharge side of a compressor ...
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JP7350888B2 |
A refrigeration cycle apparatus (100) includes: a compressor (1), a first outdoor heat exchanger (4), and a second outdoor heat exchanger (5) that are connected to a refrigerant expansion mechanism (8) and an indoor heat exchanger (9) an...
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