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WO/2008/039204A1 |
A refrigerant vapor compression system includes a flash tank receiver disposed in the refrigerant circuit intermediate the refrigerant cooling heat exchanger and the refrigerant heating heat exchanger. The flash tank receiver, which rece...
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WO/2008/026646A1 |
An air conditioner (1) has an expansion valve control device (41) for performing operation control including activation control of expansion valves (33a, 33b). When the expansion valves (33a, 33b) are opened from a minimum opening degree...
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WO2007110908A9 |
A refrigeration air conditioning device whose heating ability is higher than that of conventional devices with a gas injection cycle so that the device can exhibit sufficient heating ability in a cold region where outside air temperature...
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WO/2008/021950A2 |
A gas heat pump system powered by natural gas, propane or similar gaseous fuel is disclosed. The system uses heat recovery and heat addition to manage efficient heating and cooling cycles. In a cooling cycle excess heat is vented to the ...
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WO/2008/018968A2 |
A cooling system that has an electrical controller that controls an electric expansion valve and the defrost cycle using a reversing valve. The need for heater circuit to achieve defrost is eliminated. The system permits the defrosting t...
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WO/2008/016265A1 |
An air conditioning system includes an indoor heat exchange unit which exchanges heat with indoor air, and an outdoor heat exchange unit which exchanges heat with outdoor air. The outdoor heat exchange unit performs a defrosting operatio...
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WO/2008/016233A1 |
A simultaneous heating/cooling multi air conditioner capable of performing heating and cooling simultaneously is provided. The simultaneous heating/cooling multi air conditioner includes a plurality of outdoor heat exchangers. The plural...
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WO/2008/013103A1 |
An air conditioning system capable of cooling and heating the inside of a room by switching between the cooling and heating and by using a refrigeration cycle performed by compressing refrigerant to a level not less than a critical press...
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WO/2008/010988A1 |
A system includes a compressor and a compressor motor functioning in a refrigeration circuit. A sensor produces a signal indicative of one of current and power drawn by the motor and a liquid-line temperature sensor provides a signal ind...
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WO/2008/007657A1 |
A ventilating and air conditioning apparatus is provided with a circulating fan, which takes air from an air inlet opened in a first indoor space and blows out air from a blow out port opened in the first indoor space; a ventilating fan ...
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WO/2008/005320A2 |
A heat pump liquid heater for heating a liquid comprising: a heat pump; a liquid tank in heat communication with the heat pump, wherein the liquid tank comprises the liquid; and at least one metal condenser tube immersed into the liquid,...
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WO/2007/139010A1 |
In a refrigerant circuit (20), an air conditioner unit (12), a refrigerating showcase (13), and a freezing showcase (14) are parallelly connected to an outdoor unit (11). To set an indoor heat exchanger (71) of the air conditioner unit (...
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WO2007044640B1 |
A spa is provide with a heat pump for both heating and cooling the water contained in the spa tub. The heat pump uses the existing water pump of the hydrotherapy system to circulate the water through the water heat exchanger of the heat ...
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WO/2007/123720A2 |
A method and devices for rapid cooling of small biological samples by plunging them in a cryogenic liquid, such as liquid nitrogen, or contacting them with a cryogenic metal surface, reduce or eliminate the cold gas layer that forms abov...
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WO/2007/119414A1 |
A cooling medium heating apparatus which has improved controllability and reduced power consumption, and a method for controlling heating of such cooling medium heating apparatus are provided. The cooling medium heating apparatus (4) is ...
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WO/2007/114205A1 |
A multi-room type air conditioner includes a plurality of indoor units connected to one outdoor unit. The outdoor unit is capable of preventing pressure from rising even when the minimum number of indoor units are connected with the mini...
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WO/2007/105669A1 |
A cooling medium heating apparatus by which controllability can be improved and power consumption can be reduced, and a heating capacity control method for such apparatus are provided. A cooling medium heating apparatus (4) is provided w...
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WO/2007/105511A1 |
An intermediate pressure heat exchanger (40) and a supercooling heat exchanger (60) are installed in a refrigerant circuit (20). In the refrigerant circuit (20), a first flow passage (61) of the supercooling heat exchanger (60) is dispos...
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WO/2007/102463A1 |
A refrigeration device (20) has an intermediate-pressure heat exchanger (40) and a gas-liquid separator (51). In cooling operation, that portion of refrigerant which is condensed in an outdoor heat exchanger (36) flows into injection pip...
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WO/2007/102345A1 |
A refrigeration device (1) has a refrigerant circuit (1E) where a compressor (2), an outdoor heat exchanger (4), an expansion mechanism, an indoor heat exchanger (41) for air conditioning the inside of a room, and cooling heat exchangers...
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WO/2007/097238A1 |
Even when an accumulator size is comparatively small, it is possible to suppress degradation of smooth operation due to an excessive coolant remaining in an outdoor unit. An air conditioner (1) includes a plurality of outdoor units (2, 1...
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WO/2007/094220A1 |
A cooling medium heating apparatus is provided for suppressing heat loss of a cooling medium in piping between a heater and an expansion valve. A cooling medium heating apparatus (4) is provided with a first connecting pipe (11), a heate...
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WO/2007/091553A1 |
A refrigerant heating device capable of controlling local superheat of a refrigerant and a method of controlling the heating capacity of the device. The refrigerant heating device (4) has a heater (12) and a control section (17). The hea...
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WO/2007/091566A1 |
A refrigerant heating device with which super heat of a refrigerant is effectively suppressed and that can control the temperature of the refrigerant by itself without relying on an external temperature sensor. The refrigerant heating de...
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WO/2007/082103A2 |
An energy conversion system including a high efficiency absorption heat pump cycle is disclosed using a high pressure stage, a supercritical cooling stage, and a mechanical energy extraction stage to provide a non-toxic combined heat, co...
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WO/2007/076602A1 |
A superconductor refrigeration system incorporates thermal superconducting elements accommodating heat transfer. The system includes an intensifying heat exchanging subsystem having a compressor (24) and two heat exchangers, (21,28) seri...
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WO/2007/069625A1 |
Prediction error in quantity of refrigerant due to difference in solubility of refrigerant into oil is minimized by sustaining the same distribution condition of refrigerating machine oil in the cycle during each operation of judging the...
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WO/2007/070060A1 |
A heat pump is provided with a component that has a pulse width modulation control to adjust system capacity. Thus, by utilizing a pulse width modulation technique to control this component, the present invention is able to closely tailo...
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WO/2007/066585A1 |
A refrigerant heater which can be fixed afterward easily and can enhance the heat recovery efficiency. An option heater unit (10) for heating a refrigerant comprises a liquid pipe (12), a gas pipe (13), a heater (19), and a casing (11). ...
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WO/2007/067172A1 |
A multi-circuit refrigerant system includes a plurality of circuits that are provided with distinct refrigerants. A control selectively matches a sensed environmental space conditioning challenge to selectively engage the plurality of ci...
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WO/2007/063916A1 |
A refrigerant heating apparatus is provided to reduce system cost even in the case that a plurality of subject portions are heated. A power unit (60) as a refrigerant heating apparatus to heat a refrigerant flowing through a refrigerant ...
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WO/2007/063707A1 |
Provided is an outdoor apparatus for an air conditioning apparatus, by which increase of an installation area can be suppressed. The outdoor apparatus (2) for the air conditioning apparatus (1) is provided with an air conditioning unit (...
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WO/2007/046792A1 |
There is provided a space heating system (100) that includes a heat pump (105), a supplemental gas heating system (110), and a controller (115) connected to the heating system (100). The controller (115) controls a switching set point, w...
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WO/2007/040031A1 |
A liquid gas heat exchanger for an air conditioner capable of suppressing the rise of a suction pressure loss without adding a heat exchanger. In the liquid gas heat exchanger used in a refrigerating cycle for an air conditioner, a high ...
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WO/2007/034744A1 |
An air conditioner comprising a super-cooling heat exchanger for exchanging heat between high pressure refrigerant and low pressure refrigerant, wherein the super-cooling heat exchanger is installed in an indoor unit and has a structure ...
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WO/2007/034745A1 |
In the supercooling heat exchanger of an air conditioner for exchanging heat between high pressure refrigerant and low pressure refrigerant, a flow direction of refrigerant during a cooling operation is reversed during a heating operatio...
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WO/2007/026620A1 |
An air conditioner in which generation of passing sound of refrigerant is suppressed in an expansion valve and a utilization-side heat exchanger or in the refrigerant piping from an expansion valve to a utilization-side heat exchanger. T...
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WO/2007/021081A1 |
Thermal storage air conditioner including an outdoor unit having an outdoor heat exchanger for making heat exchange, and at least one compressor for compressing refrigerant, an indoor unit having at least one indoor heat exchanger for ma...
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WO/2007/007576A1 |
A model for simulating heat exchange performed, via piping and an indoor heat exchanger (53), between the air and refrigerant flowing from directly after an expansion valve (52) up to an entrance or exit of an indoor heat exchanger (53)....
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WO/2006/132632A1 |
A heat pump is provided with an improvement while switching from heating/cooling mode to a defrost mode. Prior to initiation of a defrost mode, an electronic expansion device is moved to an open position such that refrigerant can migrate...
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WO/2006/129544A1 |
First and second adsorption heat exchangers (51, 52) where adsorption agent is carried are used as heat exchangers of a refrigeration circuit (50), and switching over of an evaporator and a condenser is made possible. An air channel (60)...
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WO/2006/129645A1 |
This invention provides a humidity conditioner comprising a coolant circuit (50). The coolant circuit (50) comprises a compressor (53), a first adsorption heat exchanger (51) with an adsorbent supported thereon, an opening variable expan...
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WO/2006/128264A1 |
A heat pump system (10) includes a compressor (20), a reversing valve (30), an outdoor heat exchanger (40) and an indoor heat exchanger (50) coupled via refrigerant lines (35, 45) in a conventional refrigeration circuit, and a refrigeran...
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WO/2006/128262A2 |
A heat pump system (10) includes a compressor (20), a reversing valve (30), an outdoor heat exchanger (40) and an indoor heat exchanger (50) coupled via refrigerant lines (35, 45, 55) in a refrigeration circuit, and a refrigerant-to-wate...
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WO/2006/121999A2 |
A cooling system for a heat producing system includes a heat exchanger in fluid communication with the heat producing system. The heat exchanger is configured to receive a temperature control fluid therethrough. A first fan is operable i...
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WO/2006/115051A1 |
An air conditioner where refrigerant sound can be suppressed when its operation is started in a heating cycle. The air conditioner (100) has a refrigerant circuit including a compressor (10), an outdoor heat exchanger (14), a first indoo...
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WO/2006/115052A1 |
There is provided an air conditioner capable of suppressing a coolant noise accompanying volume control. The air conditioner (100) includes a coolant circuit having a compressor (10), outdoor heat exchanger (14), a first indoor expansion...
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WO/2006/112322A1 |
There is provided an air conditioner capable of suppressing the liquid back to a compressor and suppressing generation of unpleasant coolant sound for a user. The air conditioner (100) includes a coolant circuit having a compressor (10),...
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WO/2006/112924A2 |
The high side pressure of a vapor compression system is selected to optimize the coefficient of performance by measuring the gas cooler exit temperature with a temperature sensor. For any gas cooler exit temperature, a single optimal hig...
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WO/2006/112321A1 |
An air conditioner in which generation of refrigerant sound can be suppressed in small capacity control. The air conditioner (100) comprises a refrigerant circuit including a compressor (10), an outdoor heat exchanger (14), a first indoo...
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