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JP4445264B2 |
The heating-cooling circuit for motor vehicle air conditioning has an evaporator (14) for cooling air to be fed into an interior space and a heat exchanger (16) for heating the air to be fed into the interior space. An external heat exch...
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JP4420225B2 |
A compression refrigeration system that includes a compressor, a heat rejector, expansion means and a heat absorber connected in a closed circulation circuit that may operate with supercritical high-side pressure.
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JP2010038462A |
To simplify a configuration of a portion for storing an expansion valve between a double-pipe heat exchanger in which a high-temperature high-pressure refrigerant is made to flow outside an inner pipe and an evaporator.As an internal hea...
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JP2010032157A |
To provide a refrigeration cycle device providing refrigerating capacity not so different from the existing refrigerant while providing advantage of a new refrigerant, and not impairing durability.This refrigeration cycle device 100A inc...
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JP4410980B2 |
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JP4407870B2 |
To restrain the deterioration of efficiency of a refrigerating cycle, in the low-pressure side refrigerant pipeline of an ejector cycle due to heat exchange with the outdoor air. Both of refrigerant pipelines P1, P2 are covered by a heat...
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JP2010014386A |
To individually adjust a cooling capacity of each evaporator in a refrigerating device in which the evaporators are connected to suction ports which are different in suction pressure so that refrigerating cycles of different evaporation ...
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JP4400332B2 |
The internal heat exchanger 15 for exchanging heat between the refrigerant, which has passed through the gas cooler 11 for cooling the refrigerant, and the refrigerant, which is before the suction into the compressor 10 , are arranged in...
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JP4394802B2 |
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JP4379141B2 |
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JP2009276019A |
To solve problems in a cooling unit using an expansion valve wherein a refrigerant in front of the expansion valve needs to be a supercooling liquid from the viewpoint of characteristics of the expansion valve but when the length of pipi...
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JP2009270802A |
To facilitate bending of an internal heat exchanger having a double pipe structure.The internal heat exchanger 4a with the double pipe structure is provided with an outer pipe 11 and an inner pipe 12 stored in the outer pipe 11. The inne...
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JP4358832B2 |
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JP4352327B2 |
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JP4346538B2 |
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JP4348571B2 |
To prevent an abnormal rise in pressure as caused when a compressor is started from a high load stop position in a refrigeration cycle which has a compressor, a heat radiator, an expansion device, an evaporator and an internal heat excha...
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JP4348572B2 |
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JP4348113B2 |
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JP4350079B2 |
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JP4335115B2 |
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JP2009204271A |
To reduce total amount of a refrigerant used in a refrigerating cycle having an internal heat exchanger.A cross sectional area of a passage of piping of a high pressure liquid line flowing in the internal heat exchanger is set small. Thu...
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JP4323619B2 |
To obtain a constitution that enables small-sized and inexpensive fabrication and is suitable for the case of using particularly carbon dioxide or the like as a refrigerant. A refrigerant compressed by a compressor 1 to a pressure exceed...
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JP4323307B2 |
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JP4318567B2 |
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JP4316200B2 |
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JP4311115B2 |
A heater for an air conditioner includes plural water tubes and plural refrigerant tubes which are arranged in parallel in an air flow direction. Therefore, the heater can heat air by using at least one of the heating sources while a pre...
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JP2009162395A |
To provide a double-wall-tube heat exchanger having excellent heat exchanging performance.This double-wall-tube heat exchanger includes an outer tube 2, and an inner tube 3 disposed concentrically in and spaced apart from the outer tube ...
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JP2009162403A |
To minimize heat loss in a refrigerant-fluid heat exchanger for exchanging heat between a primary side refrigerating cycle and a secondary side liquid fluid cycle.This air conditioner 10 heats and cools a room by heat exchange between: t...
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JP2009156563A |
To provide a heat exchanger device capable of generating expansion, evaporation process correlated with condensation and liquefaction of high pressure gas by itself, and capable of maintaining heat balance by a synergistic effect of both...
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JP4288979B2 |
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JP4286106B2 |
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JP2009133534A |
To prevent a situation that the relationship between rotating speeds of an expander and a compressor becomes improper so that delivery pressure cannot be set to desired pressure.This refrigerating cycle apparatus includes: a main compres...
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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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