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JP4278402B2 |
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JP4273977B2 |
The present invention has an object to provide an ejector cycle and an ejector, according to which a sufficient cooling performance can be obtained even when the input amount of the refrigerant to the ejector is decreased. A passage chan...
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JP2009115415A |
To provide a supercritical refrigerating cycle in which the electric power of a compressor can be reduced by the improvement of a coefficient of performance in a cycle stabilized period and quick cooling performance can be attained by th...
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JP4266903B2 |
There are disclosed a heat pump device and a drying machine using the device in which abnormal water supplying into a water-cooling heat exchanger for use in water-cooling of a heat pump can be easily detected without disposing any water...
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JP2009103453A |
To provide an air conditioning facility having air cooling type outdoor units disposed in low density, and capable of improving a cooling capacity.The air conditioning facility is for a building having a plurality of floors each equipped...
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JP2009103423A |
To provide a heat pump device suppressing erosion, suppressing drain, and suppressing deterioration of reliability even though there is a possibility of generation of drain in an evaporator or a pipe connecting the evaporator to a compre...
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JP4263086B2 |
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JP4258363B2 |
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JP4258553B2 |
An outdoor unit (20) including a compressor (21) and an outdoor heat exchanger (22) and an indoor unit (30) including an indoor heat exchanger (31) are provided. The outdoor unit (20) and the indoor unit (30) constitute a main circuit (4...
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JP2009085539A |
To increase a heat quantity by an evaporator and to improve a refrigerating cycle.A bypass circuit 27 connecting the outlet side of a condenser 23 and the suction side of a compressor 21 is provided in a refrigerant circuit 19 in which a...
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JP2009085568A |
To exhibit a desired refrigeration cycle performance improving function by an internal heat exchanger by suppressing or preventing heat exchange between refrigerants in an azeotropic refrigerant, especially when gradual heat exchange is ...
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JP2009063233A |
To provide a control method capable of reducing costs of a refrigerating cycle comprising an internal heat exchanger, and improving efficiency of a system.An inexpensive solenoid expansion valve of solenoid operation with a simple consti...
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JP4239256B2 |
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JP4241127B2 |
To provide a critical transitional criticality refrigerant cycle device provided with an internal heat exchanger and capable of effectively preventing liquid compression caused when starting a compressor or reducing its number of revolut...
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JP4232567B2 |
To provide a refrigeration cycle device capable of preventing the performance from being impaired by the shortage of a flow rate of refrigerant under low load of an ejector cycle (low temperature inside air mode). A controller 10 control...
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JP4232463B2 |
When a dehumidifying and heating operation is set in an air conditioner, refrigerant is circulated from a compressor to the compressor through a first exterior heat exchanger, a decompression device, an interior heat exchanger, an anothe...
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JP4222137B2 |
The device has several pipes (1a) in which a coolant flows in the longitudinal pipe direction, a first distribution container (1b) perpendicular to the longitudinal direction for connecting to the pipes at one end of each pipe, a second ...
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JP2009024999A |
To keep refrigeration power even when a device is replaced by a refrigerating device for HFC refrigerant in existing indoor equipment and indoor piping designed for a HCFC refrigerant, to prevent degradation of operation efficiency cause...
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JP2009024899A |
To provide an evaporator capable of dispensing with extra components as a refrigerating cycle, reducing a space for loading the refrigerating cycle and its costs, and improving cooling performance.A refrigerant circulating portion 10 thr...
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JP2009008369A |
To prevent the temperature of a refrigerant compressed by a compressor from becoming too high when a refrigerating load is high, in a refrigerating cycle having an internal heat exchanger.A control valve 7 capable of mixing a part of a h...
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JP4208620B2 |
Refrigerant cycle apparatus which can optimize the capability of releasing heat from a refrigerant in a gas cooler (155) and an auxiliary heat exchanger under use conditions at a low cost. There are provided an intermediate cooling circu...
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JP2008309477A |
To keep refrigeration power even when a device is replaced by a refrigerating device for a HFC refrigerant in existing indoor equipment and indoor piping designed for a HCFC refrigerant, to prevent degradation of operation efficiency cau...
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JP4202505B2 |
A vapor compression type refrigeration system 301 comprises a first refrigerant temperature detector 302 attached on a pipe P7 to detect temperature of refrigerant at the side of an outlet of an evaporator 108. A second refrigerant tempe...
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JP4196774B2 |
In an internal heat exchanger, when a corresponding diameter of a high pressure passage 5a is Psih, a passage length Lh of the high pressure passage (5a) is so set as to satisfy the relation 9.16/{LN(4.5-Psih+1.03)}
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JP4192413B2 |
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JP4188784B2 |
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JP4182148B2 |
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JP4179092B2 |
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JP4179231B2 |
A pressure control valve includes a valve portion disposed in a passage from a refrigerant radiator to a suction port of a refrigerant compressor in a vapor-compression refrigerant cycle system. The valve portion controls a refrigerant p...
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JP2008267707A |
To provide a refrigerant system capable of increasing and decreasing a capacity of the refrigerant system to meet external load demands more accurately.The scroll compressor 22 is provided with a multi-speed motor 24. A controller 44 sel...
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JP2008267653A |
To sufficiently achieve a noise reduction effect at a joining portion of a hot gas bypass pipe and a main refrigerant circuit.An air conditioning device 1 comprises a compressor 21, a cooler, an evaporator, a bypass pipe 27 and an intern...
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JP2008261557A |
To provide a heat pump water heater having an inexpensive configuration and being easily achieved as a product.The heat pump water heater is provided with a refrigeration cycle unit 1 constituted by annularly connecting a compressor 2, a...
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JP4172006B2 |
In a freezing cycle, if the pressure in a high-pressure line (8) reaches an abnormal level, the high-side pressure is released toward a low-pressure line (9) to lower the pressure without releasing the coolant into the atmosphere and the...
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JP2008256350A |
To provide a refrigerant cycle device having a reduced size while preventing the flow of liquid refrigerant into a compressor.The refrigerant cycle device comprises the compressor, a gas cooler, a decompressor, an evaporator, and a heat ...
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JP2008256281A |
To increase temperature rise of water in a delivery gas region of a refrigerant delivered from a compressor, to lower a condensation temperature correspondingly, and thereby, to achieve efficient operation.The heat pump type water heater...
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JP2008249209A |
To efficiently control oil flowing out to a refrigerant circuit in a refrigerating device.This refrigerating device 1 comprising a first compressor 11 for compressing a gas refrigerant, a second compressor 14 for further compressing the ...
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JP4161288B2 |
The refrigerator is designed so that a heat exchanger (14) is arranged in the at least one stretch (31,38,14,44), across which heat is supplied by refrigerant existing as steam. The introduction duct (36) related to the flow passage dire...
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JP4160415B2 |
To provide a frost formation detecting method for a refrigerating cycle for easily and accurately detecting frost formation while focusing attention to a peculiar phenomenon that the frost formation on a heat absorber increases the tempe...
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JP2008209059A |
To provide an accumulator and a vapor compression type refrigerating cycle, which suppress temperature fluctuation of air passing through an evaporator, while considering COP of a refrigerating cycle.The accumulator is disposed at an out...
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JP2008207630A |
To provide a double pipe type internal heat exchanger capable of ensuring sufficient length necessary for proper heat exchange even if an evaporator and an expansion valve are disposed extremely close to a partition wall.A first double p...
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JP2008190792A |
To provide a compression type heat pump of high coefficient of performance.In this compression type heat pump constituted by successively connecting a discharge opening of a compressor, a condenser, an evaporator and a suction opening of...
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JP2008530511A |
Refrigeration circuit comprising a compressor, a heat-rejecting heat exchanger an expansion valve, a receiver (3), and a further expansion valve/evaporator to provide cooling. A second heat exchanger (24) is arranged in an upper gas port...
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JP2008180423A |
To provide a heat pump system capable of lowering a high pressure side coolant pressure without complicated control.The heat pump system is provided with a compressor 4 compressing a coolant, a radiator 5 radiating heat of the coolant fr...
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JP2008180447A |
To provide a coolant circuit capable of controlling the density and flow of a coolant flowing into an expander without influencing operation of the coolant circuit.A piping 21 and a piping 22 is passed through an intercoolant heat exchan...
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JP2008530498A |
An HVAC system having a main circuit and a subcooler circuit. The main circuit includes a main circuit evaporator, a main circuit expansion device, a main circuit condenser and a main circuit compressor connected in a closed refrigerant ...
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JP4130636B2 |
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JP4126408B2 |
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JP4123265B2 |
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JP4124136B2 |
In a heat exchanger, a core has a first core portion including first tubes and a second core portion including second tubes. The first tubes defines first passages through which an internal fluid flows and the second tubes defines second...
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JP4123264B2 |
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