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WO/2009/147852A1 |
Provided is a freezing device (1) including a plurality of compressors formed by a variable-volume compressor (21a) and fixed-volume compressors (21b, 21c) which are connected in parallel to one another. An intermediate port (5) of the ...
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WO/2009/146856A1 |
The invention relates to a method for operating an air conditioner, and to an air conditioner (1) for conditioning, i.e. cooling and/or heating, multiple fluids, comprising at least one compressor (10), at least three heat exchangers, an...
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WO/2009/147932A1 |
A flow path selector valve for switching between a cooling state and a heating state by rotation of a main valve (3) together with a auxiliary valve (4), wherein rotational operation of the main valve (3) and the auxiliary valve (4) are ...
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WO/2009/143660A1 |
An internal circulation recombination energy heating and cooling device has an inlet (1) of a solar heater connected with lower ends of an evaporator (20) and a condenser (13) through an internal circulating water source pipeline (26). A...
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WO/2009/139840A2 |
An engine/heat pump is shown. Most of its parts rotate around the same central axis. It comprises two doubly connected chambers. Blades in each chamber substantially rotate with the chamber and may be firmly attached to the walls of the ...
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WO/2009/133644A1 |
A multichamber type air conditioner arranged such that the refrigerant having some fear of impact on the human body does not leak into a room wherein an indoor unit is installed and capable of simultaneous cooling/heating operation. An a...
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WO/2009/133640A1 |
An air conditioner comprises a heat source side refrigerant circuit (A) having a compressor (11), an outdoor heat exchanger (13), a first refrigerant branch section (21) connected with the compressor (11), a second refrigerant branch sec...
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WO/2009/131083A1 |
An air conditioner (1) uses carbon dioxide as the refrigerant and is provided with a two-stage compression type compression mechanism (2), a heat source heat exchanger (4), an expansion mechanism (5), a utilization heat exchanger (6), a ...
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WO/2009/128271A1 |
In an ejector-type refrigeration cycle device provided with a first compression mechanism (11a) and a second compression mechanism (21a), a refrigerant outlet of a suction-side evaporator (16) is connected to a refrigerant suction port (...
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WO/2009/122476A1 |
Provided is an air-conditioning and hot water complex system which can process a cooling load, a heating load, and a high temperature hot water load simultaneously and supply a stable heat source throughout the year. In an air-conditioni...
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WO/2009/122706A1 |
An air conditioner (10) is provided with a refrigerating circuit (20) having indoor heat exchangers (27). A controller (1) for controlling operation of the air conditioner (10) is provided with a changing section (5). The changing sectio...
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WO/2009/122477A1 |
Provided is an air-conditioning and hot water complex system which can process a cooling load, a heating load, and a high temperature hot water load simultaneously and supply a stable heat source throughout the year. In an air-conditioni...
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WO/2009/122512A1 |
An air conditioning apparatus capable of improving a COP during a simultaneous cooling and heating operation. In an air conditioning system constituting a single freezing cycle by connecting an outdoor unit (100) and a plurality of indoo...
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WO/2009/107626A1 |
An air conditioner (1) has a two-stage compression type compression mechanism (2), a heat source heat exchanger (4), a utilization heat exchanger (6), a switching mechanism (3), and an intermediate heat exchanger (7). The switching mecha...
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WO/2009/099429A1 |
A transport refrigeration/air conditioning system includes a fuel cell which is electrically connected to at least one of the compressor drive motor, evaporator fan motor or condenser fan motor to provide electrical power thereto.
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WO/2009/087733A1 |
Disclosed is a refrigeration cycle device which is compact in size and is simply controlled. These are achieved by reducing the number of drive devices for driving switching means for switching between the directions of flow of fluid. Al...
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WO/2009/079914A1 |
A conversion device for refrigerant flow direction comprises a four-way valve (80), four check valves (9A, 9B, 9C, 9D) and four connection terminals (a, b, c, d). A high pressure node (81) of the four-way valve (80) is connected with an ...
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WO/2009/076628A2 |
An HVACSR system is disclosed that utilizes energy-efficient valving. The valving controls the flow of refrigerant and may be adapted for evaporator or condenser applications, on both AC systems and heat pumps (as well as chillers and ot...
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WO/2009/076623A1 |
An HVAC&R system is disclosed that utilizes energy-efficient valving. The valving controls the 'flow of refrigerant and may be adapted for evaporator or condenser applications, on both AC systems and heat pumps (as well as chillers and o...
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WO/2009/062056A1 |
A heating/cooling system has improved operating efficiencies due to low superheat provisions and a specially configured compressor oil return. For certain systems, such as direct exchange geothermal heating/cooling applications having su...
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WO/2009/051015A1 |
An air conditioner has a refrigerant circuit in which a refrigerant discharged from a compressor (1) circulates, a pilot-operated four-way valve (2) for switching the flow of the refrigerant in the refrigerant circuit, a control section ...
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WO/2009/047906A1 |
An air conditioner exhibiting a preferred COP even under a different use condition. In a cooling medium circuit (10), a compressor (21), an outdoor heat exchanger (23), an indoor expansion valve (41, 51), and indoor heat exchanger (42, 5...
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WO/2009/044772A1 |
An air conditioner in which an air outlet path (23) leading from an indoor fan (11) to an air outlet opening (24) is a single path and in which there is no partition member in the air outlet path (23). In an operation mode in which one p...
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WO/2009/040889A1 |
An air conditioner (1) comprising a plurality of heat source units (10A, 10B) having heat source unit side heat exchangers (13A, 13B) and compressors (11A, 11B), one or a plurality of indoor units (20A, 20B, 20C) having flow controllers ...
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WO/2009/028043A1 |
An air conditioner performing operation with good energy efficiency by making it possible to condense refrigerant efficiently while ensuring safety operation and protection of the air conditioner. The air conditioner (100) capable of coo...
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WO/2009/028193A1 |
A refrigeration device (1) has selector valve control means (58) and selection judgment means (59). In starting of a compression mechanism (40), the selector valve control means (58) outputs a selection signal for controlling a four-way ...
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WO/2009/024282A2 |
The invention relates to an improvement of a tempering device on the basis of a heat pump, having a coolant medium circulation, in which a compressor, a capacitor in the form of a first heat exchanger, intended for heat emission, an expa...
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WO/2009/011197A1 |
A refrigeration cycle device for saving energy by operating while sustaining a high COP even thermal load or temperature conditions are varied, by using a refrigerant which is operated in a gas-liquid two-phase region or a supercritical ...
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WO/2009/012323A2 |
A direct exchange heating/cooling system includes a specially designed supplemental air-source heat exchanger (4) (also referred to herein as a High Level Heat Dissipater ("HLHD"). The HLHD is coupled to the primary vapor/hot gas line (1...
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WO/2009/004779A1 |
An air conditioner having a refrigerant circuit (20) performing super critical two-stage compression refrigerating cycle comprises a test run data acquiring section (50a) for previously acquiring the pressure loss value of refrigerant fl...
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WO/2008/153669A2 |
A refrigerant system for cooling a comfort zone is selectively operable in a cooling-only mode and a reheat mode. The system operates in the cooling mode to meet sensible and latent cooling demands of a room or area in a building when th...
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WO/2008/146709A1 |
A refrigeration cycle device using a first compressor and a second compressor driven by an expander, wherein the expander occupies a minimum space and is used efficiently and wherein unit production costs are reduced. A heat radiator and...
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WO/2008/140516A1 |
A refrigerant system includes a compressor that has safe operating limits that are also built into a refrigerant system control to protect the compressor. Under certain conditions, these safe operational limits may be changed to allow th...
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WO/2008/129921A1 |
In an evaporative air conditioner comprising a reversible vapor compressor (17) arranged in a vapor duct (16) connecting a first container (1) and a second container (2), performing cooling operation by rotating the vapor compressor (17)...
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WO/2008/123884A1 |
A refrigerant system utilizes an expander to expand refrigerant and to drive or assist in driving an associated compressor. By varying the compressor load, the speed of the expander can be adjusted to achieve the desired thermodynamic ch...
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WO/2008/093538A1 |
When a refrigeration device (20) performs cooling operation, the device is provided with heat source-side opening degree control means (53) that controls the degree of opening of a heat source-side expansion valve (36) so that the pressu...
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WO/2008/094261A2 |
A heat pump dehumidification system comprised of one of an air source heat pump system, a water source heat pump system, and a direct expansion heat pump system, with an extra interior air heat exchange means (6) situated between the sys...
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WO/2008/090927A1 |
An air conditioner has selection mechanisms (30A, 30B). In the selection mechanism (30A), which is connected to an indoor heat exchanger (41) that performs heating operation, the degree of opening of a control valve (53) for supercooling...
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WO/2008/089433A2 |
A direct exchange heating/cooling system with at least one of a reduced compressor size, with a 500 psi high pressure cut-off switch, with a 98% efficient oil separator, with extra oil, operating at a highei pressure than an R-22 system,...
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WO/2008/081273A2 |
Refrigerating plant comprising a coolant fluid, a compressor (1), A condenser (3), an expansion valve (5), an evaporator (6), a collecting receptacle (s) for collecting said coolant fluid, and controlling means (14, 15) for piloting said...
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WO/2008/076119A1 |
A heat pump refrigerant system is provided with a pulse width modulation control for a fan moving air over the indoor heat exchanger. When it is determined that there is insufficient heat rejected by the indoor heat exchanger to heat the...
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WO/2008/073039A1 |
Heat pump assembly for seasonal balancing of temperatures in buildings, comprising a heat pump (1) having a cold side and a warm side, respectively. The invention is characterized in that heat exchangers (2, 3) are connected to said cold...
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WO/2008/069265A1 |
An air-conditioner having a coolant circuit constituted by use units are connected to a heat source unit and capable of performing heating operation by refrigeration cycle operation in which the high-pressure side exceeds the critical pr...
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WO/2008/069066A1 |
A refrigeration device in which, in a coexistence operation where a refrigeration cycle using an outdoor heat exchanger (22) as a condenser and also using at least one of indoor heat exchangers (31, 41, 51) as a condenser, a pressure dif...
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WO/2008/059803A1 |
A heat exchanging system (1A) is provided with an outdoor heat exchanger (11), an indoor heat exchanger (12), a compressor (13), an expansion valve (15), a capillary tube (16) and a cooling jacket (20). The compressor (13) is arranged on...
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WO/2008/059922A1 |
In recent years, there is known a multi-type air conditioner, which establishes a freezing cycle by connecting a plurality of outdoor equipments as the load of a cooling/warming operation increases. In case an outdoor equipment to be ope...
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WO/2008/057090A1 |
A heat pump refrigerant system is provided with at least two sequential stages of compression. An intercooler is positioned intermediate the two stages. The refrigerant flowing through the intercooler. is cooled by a secondary fluid such...
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WO/2008/053752A1 |
A heat source side circuit (12) is provided with a first gas side port (31) which constantly communicates with the outlet side of a compressor (14); a second gas side port (32) which constantly communicates with the inlet side of the com...
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WO/2008/053802A1 |
An expansion valve (42) and a first control valve (31) are slightly opened by a controller (50) when heater operation by an indoor unit (40A) stops or pauses with a second control valve (32) fully opened.
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WO/2008/047784A1 |
An air conditioner in which, to switch each indoor heat exchanger (41) from cooling operation to heating operation, a controller (50) slightly opens a first control valve (31) after closing a second control valve (32) and then fully open...
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