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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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JP2008164288A |
To solve problems in a refrigerating device using such a refrigerant that the refrigerant discharged from a compressor is in a supercritical state, that the charging amount of the refrigerant must be increased in quick cooling as a refri...
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JP4114471B2 |
The system has a refrigerant-to-refrigerant heat exchanger (5) exchanging heat between high pressure refrigerant and a low pressure refrigerant. A variable throttle valve (6) reduces and increases an area of opening/degree of throttle op...
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JP2008151404A |
To realize an air conditioner capable of securing a sufficient humidification amount, and capable of carrying out power-saving during humidification while preventing enlargement of an indoor unit as much as possible.The air conditioner 1...
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JP2008149812A |
To provide an air conditioner for an automobile capable of efficiently arranging an internal heat exchanger and realizing an efficient operation.A thermostatic expansion valve 5 is housed in a case 7 directly connected with a refrigerant...
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JP4112392B2 |
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JP4108509B2 |
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JP4107461B2 |
An integrated modular collector-heat exchanger unit for motor vehicle air conditioners and the like has a collector housing in which a collecting space and a heat exchanger unit are disposed. The heat exchanger unit includes two separate...
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JP4107148B2 |
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JP2008133996A |
To remarkably enhance a coefficient of performance of a refrigerating cycle of a vehicular cooler by reducing a power consumption of a compressor and by enhancing a capacity of an evaporator.This cooler is provided at least with the comp...
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JPWO2006073134A1 |
In the pipe body 200 provided with the first flow path 201 and the second flow path 202 located around the first flow path, the pipe body is provided with the second flow path and constitutes the first flow path. It is a pipe body having...
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JP2008134031A |
To provide a refrigerating device capable of using a zeotropic refrigerant mixture, preventing generation of flash gas in a refrigerant liquid pipe and improving heat transferring performance of an evaporator.A countercurrent liquid-gas ...
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JP4100184B2 |
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JP4096674B2 |
In an ejector cycle having an ejector, a throttle is provided inside a passenger compartment adjacent to an evaporator so that a length of a refrigerant passage between the throttle and the evaporator is shortened. Therefore, it can rest...
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JP4096934B2 |
In the case where a 100 percent heat recovery operation mode is performed without using an outdoor heat exchanger in a refrigeration apparatus which is provided with utilization-side heat exchangers of a plurality of piping systems and i...
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JP4091452B2 |
To provide a highly efficient and safe pressure control device for refrigerating cycle using a supercritical refrigerant, suppressing the occurrence of a cycle hunting while maintaining the advantages of a differential pressure type valv...
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JP4089567B2 |
A heat exchanger module includes a condenser for condensing a refrigerant, a modulator, a sub-cooler for cooling liquid refrigerant supplied from the modulator, and a heat exchanger for cooling a fluid different from the refrigerant. The...
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JP2008089268A |
To provide a vehicle cooler drastically improving a performance factor, and capable of reducing power consumption of a compressor by shifting, to the left side on a Mollier diagram, both of a compression stroke by the compressor and a st...
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JP2008082601A |
To provide a highly efficient storage type heat pump water heater for storing high-temperature hot water in a hot water storage tank down to its lower part with less power consumption to allow effective use of the capacity of the hot wat...
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