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JP6978692B2 |
Provided is a heat exchanger including a header that enables a reduction in parts count even when a large space is secured in the header, and a heat pump apparatus. An outdoor heat exchanger (11) connected to a first gas-refrigerant pipe...
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JP6972348B2 |
A refrigeration cycle apparatus (100) includes a refrigerant circuit in which refrigerant circulates. The refrigerant circuit includes a compressor (1), a first flow path switching unit (2), an outdoor heat exchanger (3), a decompressor ...
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JP6972422B2 |
In a refrigeration cycle device (100) according to the present invention, a refrigerant containing R290 is circulated in a first circulation direction through a compressor (1), a first heat exchanger (3), a first pressure reduction devic...
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JP6972293B2 |
Provided is a flow path switching valve which is capable of switching the number of flow paths in a refrigerant circuit and may be made smaller than a conventional flow path switching valve, and an air conditioner including the flow path...
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JPWO2021014525A1 |
The first refrigerant circuit that causes the load side heat exchanger to function as an evaporator and the heat source side heat exchanger to function as a condenser, and the heat source side heat exchanger to function as an evaporator ...
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JP6964526B2 |
To provide a heat source device having resistance to vibration of a compressor and high reliability.A heat source device comprises a compressor, a discharge pipe 27 connected to the compressor, and a silencer 29 at a tip of the discharge...
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JP6949126B2 |
The air-conditioning apparatus includes the plurality of heat source apparatuses; a plurality of indoor units each including an indoor heat exchanger and each configured to perform one of cooling and heating operations; a relay device co...
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JP6950191B2 |
To shorten time for a room temperature to reach the vicinity of a heating preset temperature when returning to a heating operation after defrosting, in an air conditioner including an inverter compressor.An inverter compressor 11 is cons...
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JP6947401B2 |
Provided is a flow channel switching valve that can ensure an excellent sealing property, operability, and stability, and can effectively prevent valve leakage. As seen in the horizontal direction (i.e., direction perpendicular to axis),...
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JP2021162232A |
To provide an air conditioner capable of suppressing influence due to leakage of a refrigerant even when leakage of the refrigerant occurs in the case where an indoor unit having a shutoff valve and an indoor unit not having shutoff valv...
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JP2021156502A |
To provide an air conditioner which includes the same number of decompressors whose decompression amount is fixed as indoor units, and which can suppress increase in an overheat region of an indoor heat exchanger during a cooling operati...
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JP2021156520A |
To provide a refrigeration cycle device capable of suppressing an uneven flow of a refrigerant.A refrigeration cycle device 100 includes a refrigerant circuit 102 in which a compressor 11, a heat source side heat exchanger 13, an expansi...
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JP2021156521A |
To provide a refrigeration cycle device capable of suppressing deterioration of performance of a heat exchanger by making a temperature difference in the vicinity of an outlet of the heat exchanger uniform.A refrigeration cycle device 10...
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JP6943797B2 |
To provide a geothermal heat pump device capable of achieving optimal heat absorption/heat release processing with respect to the underground by preventing excessive heat absorption from the underground/utilize shortage of underground he...
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JP2021148424A |
To provide an air conditioning unit that can individually control a flow of refrigerant passing through a reheating coil and a flow of refrigerant directly entering an evaporator.In an air conditioning unit for controlling air temperatur...
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JP2021146958A |
To reduce the noise generated when switching between a heating operation that does not allow refrigerant to flow through an evaporator and a dehumidifying heating operation that allows the refrigerant to flow through.In vehicle air condi...
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JP2021143771A |
To provide an air conditioner with improved heat exchange efficiency.An air conditioner comprises a refrigerant circuit, an outdoor fan, and a controller. The refrigerant circuit includes a flow path switcher that circulates refrigerant ...
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JP3234171U |
To provide a heat pump type cooling / heating device which cools and heats the inside of a refrigerator with one device, widens the temperature range, and automatically controls the temperature inside the refrigerator. A heat pump type c...
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JP6937899B2 |
A refrigeration cycle apparatus (100) includes a compressor (1), a four-way valve (2), a second flow path switching unit (10), a first outdoor heat exchanger (3), a second outdoor heat exchanger (4), a first indoor heat exchanger (6a) an...
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JP6938950B2 |
To reduce the energy consumption of an air conditioning system that comprises air conditioners that exchange heat between a refrigerant and a heat source fluid to perform a refrigeration cycle.Heat source side units (61) of air condition...
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JPWO2020080129A1 |
The present disclosure describes a refrigerant compressor capable of improving the operating efficiency of the refrigerator. The refrigerant compressor constitutes a refrigerator together with a condenser and an evaporator. The refrigera...
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JP2021127847A |
To provide a refrigerant circuit device which can inhibit increase of a discharge temperature and a pressure of a refrigerant to obtain hot water having a temperature higher than a condensation temperature of the refrigerant even when ou...
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JP6931047B2 |
Provided is a system (10) for air-conditioning and hot-water supply and configured to selectively perform a cooling operation and heating operation, comprising: an outdoor unit (110) having a compressor (111) and an outdoor heat exchange...
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JPWO2020065731A1 |
Among the indoor units, the second electric expansion valve in the indoor unit in the operation-on state according to the heating load is opened, and the second electric expansion valve in the indoor unit in the operation-off state accor...
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JP2021124262A |
To provide an air conditioner capable of cooling a heat storage tank at a cheap price.In an air conditioner, a vapor compression type heat pump cycle is constituted by circulating a refrigerant by circularly connecting an outdoor unit ha...
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JP6926900B2 |
To prevent in an air conditioner including a plurality of outdoor units, liquid compression of a compressor of an outdoor unit whose initial control is previously completed, in start-up control processing with determination of the correc...
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JP6927315B2 |
Provided is a refrigeration apparatus in which a refrigerant leak is reduced.The refrigeration apparatus includes a heat source unit (10); a plurality of utilization units (30) connected in parallel to the heat source unit; a refrigerant...
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JP6925529B2 |
A refrigeration cycle device (10) according to the present invention is provided with a refrigerant circuit (RC) and a strainer. The strainer is connected to at least one of a pipe (80) which connects a compressor (20) and a condenser to...
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JP6925461B2 |
To enhance comfort of a user.An air conditioner 100 is operated in a mode selected from either of a cooling mode and a dehumidification mode. The air conditioner 100 comprises: a coolant circuit 102 where a coolant is circulated through ...
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JP6923378B2 |
To provide a heat storage material composition having excellent overcooling inhibitory effect without changing a melting point of TBAB hydrate.A heat storage material composition contains water and tetra-n-butylammonium bromide as the ma...
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JP2021517955A |
The present invention is a method of cooling and / or heating an object or fluid in an automobile using a system having a steam compression circuit in which a first heat transfer composition circulates and a secondary circuit in which a ...
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JP6910554B2 |
An air-conditioning apparatus includes: room temperature sensors (106); room temperature setting units (107); a variable displacement type compressor (101) that causes refrigerant to circulate through an outdoor heat exchanger (103), ele...
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JP6910210B2 |
The present disclosure relates to a heat pump system comprising an outdoor unit disposed in an outdoor space, a plurality of thermal load units supplied with cool air and hot air, and an intermediate unit disposed between the outdoor uni...
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JP6909889B2 |
Disclosed is a heat pump system including a compressor configured to compress a refrigerant, a four-way valve configured to switch a flow direction of the refrigerant discharged from the compressor, an outdoor heat exchanger and an indoo...
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JP6904396B2 |
A refrigeration apparatus (1) includes a gas-liquid separator (15) on a downstream side of a radiator, and a refrigerant circuit (6) in which a high pressure of a refrigeration cycle is equal to or higher than a critical pressure. The re...
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JP6897652B2 |
To provide an air conditioner capable of expanding a range capable of coping with a thermal load in a chamber when dehumidifying the inside of a chamber by third dehumidification operation.An air conditioner includes a control part (100)...
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JP6897653B2 |
To provide an air conditioner capable of increasing a dehumidification amount in a third dehumidifying operation.An air conditioner includes a control section (100). The control section (100) executes a first dehumidifying operation in w...
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JP6895901B2 |
An air-conditioning apparatus includes a heat source unit, a plurality of indoor units, and a relay unit. The heat source unit includes a heat-source-side flow control valve connected to a heat-source-side heat exchanger, a bypass pipe c...
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JP6896078B2 |
Provided is a refrigeration cycle apparatus comprising a gas-liquid-oil separator that can be made more compact. The refrigeration cycle apparatus comprises a refrigerant circuit that includes a gas-liquid-oil separator (5) and in which ...
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JP6895653B2 |
Provided is an air conditioning apparatus that is capable of performing high-efficiency operation without stopping heating even when the outside air temperature is low. The air conditioning apparatus is provided with: a switching circuit...
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JP6893523B2 |
To provide an indoor unit capable of forming blown air with different temperatures without changing air quantity.An indoor unit includes: a casing having a suction port and a blowout port; a refrigerant circuit installed in the casing an...
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JP6887496B2 |
An apparatus using a heat pump includes a refrigerant circuit and a heat medium circuit. The refrigerant circuit is allowed to perform a first operation, in which a load-side heat exchanger is used as a condenser, and a second operation,...
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JP6888131B2 |
To provide an air conditioner capable of increasing an amount of a coolant circulated in an air conditioner when an external temperature is high and reducing the same when the external temperature is low.A refrigeration cycle device comp...
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JP6888068B2 |
To provide a refrigeration cycle device and an air conditioner capable of enhancing heat transfer performance.A compressor 5 and a heat exchanger group 10 are accommodated in an outdoor unit 4 of an outdoor device 3 of an air conditioner...
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JP6888280B2 |
To provide a refrigeration unit capable of switching an operation that enables heat accumulated in a heat storage medium to be used as condensation heat of a utilization side heat exchanger and an operation that enables the heat accumula...
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JP6886129B2 |
An outdoor unit control unit (200) includes a degree-of-dryness calculating unit (250) thet calculates the degree of dryness of a refrigerant flowing into an heat exchanger (an indoor heat exchanger (31) at the time of a cooling operatio...
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JP6885857B2 |
To unify an amount of refrigerant flowing into an outdoor heat exchanger.In an air conditioner in which an outdoor unit 1 including a compressor 4, a four-way valve 5 and an outdoor heat exchanger 6, and an indoor unit 2 including an ind...
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JP6884272B2 |
An air-conditioning apparatus includes a refrigerant circuit that is formed of an outdoor unit and an indoor unit connected through indoor/outdoor connection pipes. The outdoor unit includes a compressor, an outdoor heat exchanger, and a...
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JP6881021B2 |
To avoid operation time of a simultaneous operation becoming short due to thermo-off, in an operation for processing latent heat and sensible heat in an indoor space simultaneously.A control device (60) is provided which controls each of...
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JP6880204B2 |
An air-conditioning apparatus that includes a compressor, a flow switching device, an outdoor heat exchange unit, an expansion section and an indoor heat exchanger, which are connected by pipes, in which the outdoor heat exchange unit in...
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