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JP4018908B2 |
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JP4016711B2 |
Piping, which connects between a radiator and an ejector, is covered with a thermal insulator to thermally insulate a refrigerant passage defined in the piping. Thus, it is possible to limit a reduction in enthalpy of refrigerant, which ...
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JP4013875B2 |
To improve the energy efficiency of a refrigerator and to reduce the amount of refrigerant and to improve the safety in the refrigerator using a combustible refrigerant having least influence on the global warming. This refrigerator-free...
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JP2007303746A |
To simplify piping connection in an engine compartment. An internal heat exchanger 200, an expansion valve 300 and an accumulator 500 are integrally constituted. This assembly has the internal heat exchanger 200 and the expansion valve 3...
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JP2007298264A |
To control an expansion device by absolute pressure while operating it with relative differential pressure between the pressure of an entrance and the pressure of an exit. A differential pressure control valve is composed of a movable va...
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JP4006861B2 |
In a decompression device-integrated heat exchanger, a pressure-reducing unit for reducing high-pressure refrigerant of a refrigerant cycle, and an inner heat-exchanging unit for performing heat-exchange between high-pressure refrigerant...
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JP2007278541A |
To provide a cooling system capable of improving a refrigerating capacity even when a carbon dioxide refrigerant is used. According to this cooling system, the refrigerating efficiency can be improved by determining an outer surface area...
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JP2007278582A |
To miniaturize a device and to improve system efficiency in a multi-functional heat pump system performing hot water supply and air cooling/heating. This heat pump device of the embodiment having a compressor 11, a parallel circuit of a ...
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JP3995527B2 |
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JP3996244B2 |
A constructional collector heat transfer unit having a fluid-carrying heat transfer unit and a collector for the intermediate refrigerant storage as well as an air conditioner with a refrigerant circulating system equipped therewith are ...
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JP2007528979A |
A refrigeration system has first and second evaporators which may be operated at first and second temperatures. Refrigerant from a lower temperature evaporator may be returned to a compressor suction port. Refrigerant from the higher tem...
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JP2007271106A |
To provide a sprinkler nozzle for an outdoor machine capable of being easily attached to a heat radiating portion of the outdoor machine for air conditioning. This sprinkler nozzle having a constitution retainable to the heat radiating p...
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JP3991654B2 |
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JP3988887B2 |
The invention relates to a connection unit having a multi-channel heat exchanger with high-pressure channels and low-pressure channels and a connection element with a high-pressure reservoir and a low-pressure reservoir, both with a conn...
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JP2007255872A |
To reduce cost and to stabilize quality by preventing the displacement of both tubes in brazing without increasing manufacturing man-hours not so much, in a heat exchanger for an air conditioner wherein a high pressure-side tube having a...
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JP3986338B2 |
To provide a coolant circuit capable of efficiently cooling an inverter for drive control of a compressor. The inverter 163 is arranged to exchange heat with an outer tube of an inner part heat exchanger 160 through which coolant sucked ...
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JP3987166B2 |
A thermostatic subcooling control valve (10) comprises a valve body (20) having a pressure-operative portion (21) and a valving element operating portion (30) for sensing temperature and pressure of a refrigerant to operate, and the valv...
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JP3985394B2 |
During a heating mode, higher-pressure refrigerant having passed through a condenser within an air-conditioning duct is divided into two portions. One portion is depressurized by a first depressurizing device to an intermediate pressure....
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JP2007527308A |
A method for operating a vapor compression system includes the steps of providing a vapor compression system having a compressor circuit including a compressor having an inlet port and an outlet port, a circuit incorporating the compress...
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JP3983517B2 |
High pressure drop and evaporator inefficiency due to the presence of lubricant in a refrigerant are avoided in a refrigeration system including a compressor (10) having an inlet (12) and an outlet (14). A gas cooler/condenser (16) recei...
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JP3983520B2 |
A suction line heat exchanger storage tank 22 as disclosed for use in a vapor compression system 20 to increase the efficiency and capacity of the system. Carbon dioxide is preferably used as the refrigerant. The high pressure of the sys...
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JP3982545B2 |
In a supercooling heat exchanger of an air conditioning apparatus for exchanging heat between a high-pressure refrigerant and a low-pressure refrigerant, the refrigerants flow in opposite directions during cooling and heating. Therefore,...
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JP2007240090A |
To attain reduction in cost and compact a heat pump unit. The water heater comprising a heat pump circuit 19 formed by a compressor 13, a refrigerant-water heat exchanger 14, an air heat exchanger 17 constituting an evaporator, and a blo...
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JP3973438B2 |
In a heat pump type air conditioner including a refrigerant circuit having a compressor, an indoor heat exchanger, a pressure-reducing device, an outdoor heat exchanger having at least one refrigerant pipe disposed therein, an engine for...
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JP2007218497A |
To provide a refrigerant flow controller for appropriately adjusting a flow rate ratio η of a refrigerant flow rate Gnoz decompressed and expanded by an ejector to a refrigerant flow rate Ge sucked to a refrigerant suction port of the e...
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JP2007218529A |
To provide an air conditioner with a high supercooling degree of a liquid refrigerant, in which the generation of flash gas in front of an expansion valve by a pressure loss of a refrigerant pipe can be eliminated, and the expansion valv...
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JP3965717B2 |
To enhance the performance by an increased freezing power, and perform stabilized operation in a freezing device which uses an HFC refrigerant. A cycle system of a freezer comprises a compressor 1, a condenser 2, a liquid receiver 6, a s...
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JP3966044B2 |
To simplify a system constitution while securing a dehumidifying capacity. A small heat exchanger 5 for reducing an air temperature is formed so as to perform dehumidification cooling, part of refrigerant circulating within a reverse hea...
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JP3963134B2 |
To provide a refrigeration cycle preventing the overheat operation and the operation in wet state by determining a refrigerant circulation amount by season, and reducing the cost by not using a flow rate adjustment valve and the like. In...
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JP3953377B2 |
To provide an air-conditioner for controlling an air-conditioning function irrespective of an operating condition of a compressor to circulate a first heat transfer medium in a first circulation circuit. This air-conditioner comprises a ...
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JP3956674B2 |
To provide a refrigerant circuit surely adjusting the amount of circulated refrigerant, whereby the overheat operation or the wet operation is prevented, and the operation with the proper amount of refrigerant is performed. This refriger...
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JP2007521456A |
The efficiency of refrigeration systems operating on the vapor compression cycle and employing suction line heat exchangers is increased by introducing refrigerant into the lower pressure side of the suction line heat exchanger at a qual...
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JP3951840B2 |
To provide a refrigeration cycle device capable of improving air cooling capacity in response to increase of refrigerant flow rate while avoiding increase of refrigerant pressure on high pressure side by the increase in refrigerant flow ...
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JP2007187355A |
To provide a heat exchanger allowing improvement of condensation performance all the more without causing reduction of evaporation performance, and to provide an air conditioner using it.In this outdoor heat exchanger 3, only a heat radi...
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JP3947993B2 |
To provide a pressure-resisting heat exchange element for a high- pressure air conditioner. The present heat exchanger tube is designed for a heat exchanger inside the high-pressure air conditioner of an automobile, in particular. The tu...
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JP3948475B2 |
To improve heat exchanging performance without enlarging a volume of a heat exchanger and to minimize an evaporator by installing a supercooling heat exchanger in an indoor unit and applying a structure suitable for correspondence with t...
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JP3945208B2 |
To provide a high-performance and low-cost heat exchange tube and a heat exchanger by extrusion-molding the heat exchange tube 100 improving the molding performance and disposed with multiple pores into multiple rows in the thickness dir...
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JP2007518624A |
The invention relates to an air conditioning unit, in particular, for a motor vehicle, comprising at least one heat exchanger (103; 203; 203'; 203"), operating as an evaporator and at least one heat exchanger (103'; 203; 203'), operating...
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JP3941555B2 |
To adequately adjust the flow rate of the circulating refrigerant in a cycle even under an operating condition that the flow rate of the circulating refrigerant is reduced. A second heat exchange unit 6 is provided on the downstream side...
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JP2007163086A |
To provide a refrigeration cycle capable of efficiently performing heat exchange while using a non-azeotropic mixed refrigerant containing a carbon dioxide.The refrigeration cycle includes a compressor 1, a refrigerant cooler 2, a pressu...
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JP2007155229A |
To improve a coefficient of performance of a refrigerating cycle by reducing a degree of superheat of a compressor suction side coolant, in regard to a vapor compression type refrigerating cycle using carbon dioxide being a natural coola...
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JP3934140B2 |
A single-stage refrigerating system includes a compressor, a condenser, an evaporator, and a heat exchanger for exchanging heat between a refrigerant in a path from the evaporator to the compressor and a refrigerant in another path from ...
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JP3932913B2 |
To provide a heat pump type water heater capable of shortening a defrosting time and avoiding a liquid return. A compressor 25, a water heat exchanger 26 for heating hot water, an electric expansion valve 27, and an air heat exchanger 28...
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JP2007147198A |
To improve performance of a first evaporator 40 by reducing the level of dryness of a cooling medium flowing into the first evaporator 40 from an ejector 30.A cooling medium low in the level of dryness is separated from a cooling medium ...
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JP3928470B2 |
To prevent fog from being generated on a wind shield and to quickly remove the fog even if the fog is temporarily generated on the wind shield. Air blown out by an indoor heat exchanger 30 is heated making a coolant of high temperatures ...
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JP2007139208A |
To provide a high pressure control valve of low costs capable of improving COP of a refrigerating cycle of CO2 refrigerant incorporating an internal heat exchanger, enhancing cooling-down, and achieving strength of a temperature sensing ...
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JP2007132625A |
To enable liquid injection while suppressing increase in manufacturing cost and to prevent excessive rise in the temperature of delivery gas in a refrigerant circuit equipped with a gas injection passage.The refrigerating device is equip...
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JP2007127375A |
To positively return refrigerating machine oil to a high stage-side compressing mechanism in a refrigeration unit comprising a refrigerant circuit performing two-stage compression.This refrigeration unit comprises a refrigerant circuit 1...
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JP2007127335A |
To provide a cooling system capable of carrying out improvement of cooling efficiency by using water used for other purposes as a low temperature heat source.In the cooling system, since cooled refrigerant can be sent into an expansion v...
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JP2007512500A |
A heat exchanger including a suction line for gaseous or two phase refrigerant output from an evaporator and a capillary tube carrying cooled refrigerant to the evaporator. The suction line includes first and second substantially paralle...
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