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JP2008185292 |
To reduce restrictions by installation conditions, on a heat source unit 64 in installing utilization units 61 in a refrigerating device 20 comprising the heat source unit 64 and the utilization units 61.A heat source-side opening contro...
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JP2008180422 |
To secure air conditioning performance as a whole air conditioner while suppressing coolant passing noise caused by generation of coolant flushes.In a change-over mechanism 30A of change-over mechanisms 30A, 30B, connected to an indoor h...
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JP2008175528 |
To heat a freezing storage showcase without separately mounting a heating means.A heat source system is provided with a refrigerant circuit 10 with which a first utilization system having a HC heat exchanger 31 and a second utilization s...
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JP2008170130 |
To provide an air conditioner capable of reducing the diameter of piping between units while maintaining performance.A relay part comprises: second switching parts for connecting a first piping connection part of an indoor unit to one of...
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JP2008170063 |
To reduce manufacturing costs and an installation area, and to improve performance by reducing a pressure loss of a passage for a low pressure gas coolant returning from a low pressure gas connection pipe to a compressor, in regard to a ...
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JP2008164225 |
To provide a refrigerating device where a compressor is hardly damaged, with respect to the refrigerating device utilizing a refrigerant.This receiver 26 disposed in the refrigerating device 1 using the refrigerant and a refrigerating ma...
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JP2008157567 |
To improve heat exchanging efficiency of a use side heat exchanger in both cooling and heating operation modes and improve refrigerating efficiency.The heat pump type refrigeration device is configured by forming a refrigeration cycle th...
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JP2008151449 |
To provide a four-way selector valve capable of effectively restraining a heat exchange amount through a valve seat.The four-way selector valve comprises a valve body 4, a high pressure side connection pipe end 13, a low pressure side co...
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JP2008153168 |
To provide a fuel cell system performing cooling and heating using a heat pump, in which immediate effect at the time of heating is improved and efficiency of the heat pump is improved with a simple structure.The fuel cell system is inst...
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JP2008145038 |
To provide an air conditioner provided with a bridge circuit capable of rectifying the flowing direction of a refrigerant passing through an expansion valve in one direction regardless of switching state of a switching mechanism, improvi...
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JP2008145000 |
To reduce a cost and a dimension of an evaporative air conditioner and to reduce its running costs in the evaporative air conditioner comprising a first container 1 and a second container 2, a first indirect heat exchanger 6 of a cooling...
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JP2008145044 |
To prevent excessive increase of a discharge temperature of a compressor due to a coolant liquefaction phenomenon, and to suppress coolant flow noise produced in an use unit whose heating operation is at rest, in an air conditioner havin...
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JP2008145030 |
To provide a multi-chamber type air conditioner in which a plurality of indoor units is connected to one outdoor unit, solving the problem wherein in a heat exchanger of the indoor unit stopped or turned off by a thermostat, a refrigeran...
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JP2008144991 |
To stably secure humidified quantity for a long period in a heat pump-type air conditioner.This heat pump-type air conditioner 60 is provided with a refrigerating cycle constituted by connecting a compressor 1, a four-way valve 2, an out...
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JP2008128500 |
To provide a condenser using fine mist and its control method capable of preventing attachment of oxide and dust to a heat exchanger, and coping with a peak load by temporarily improving cooling efficiency.An outdoor unit 10 as the conde...
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JP2008128530 |
To provide a heat pump cycle device capable of preventing heat strain generated in a refrigerant heater.A valve opening velocity Vo is decided on the basis of a valve opening velocity property based on temperature difference T between a ...
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JP2008121984 |
To solve a problem wherein an operation mode disabling maximum capacity exhibition of a heat exchanger exists due to a coolant flowing only to a specific line although the coolant is in an overaccumulated state in the heat exchanger beca...
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JP2008121985 |
To provide a heat exchange system capable of preventing the occurrence of dew condensation near a cooling part while avoiding a cost increase.The heat exchange system 1A comprises an outdoor heat exchanger 11, an indoor heat exchanger 12...
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JP2008121918 |
To provide an air conditioner capable of performing stable defrosting operation without causing problems of deterioration in comfortableness or defrosting omission while improving the reliability of a compressor by suppressing a low pres...
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JP2008122025 |
To solve a fault of causing the notable degradation of a capacity by the operation of control even if an indoor heat exchanger is not actually frozen due to the temperature drop of the indoor heat exchanger when indoor side humidity is m...
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JP2008121970 |
To provide a multi-type air conditioner capable of avoiding a partially occurring non-heating state.When outlet temperature control is performed, a change command to raise a target temperature used for normal outlet temperature control i...
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JP2008116085 |
To provide a multi-type air conditioner which is diversified by mixedly disposing indoor units free from expansion valves and having good silent property, absorbing variation of a necessary refrigerant amount, and prevents excessive heat...
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JP2008116073 |
To prevent occurrence of excess heating while preventing retention of a refrigerant in an indoor unit when heater operation stops or pauses.An expansion valve 42 and a first control valve 31 are slightly opened by a controller 50 when he...
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JP2008116145 |
To provide a heat pump type dehumidifying air conditioner capable of controlling temperature and humidity of supply air without reheating for saving energy and lowering equipment costs and operation costs for air conditioning.The heat pu...
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JP2008111657 |
To provide a heat pump water heater with a heat pump operated with high efficiency for heating water into hot water, by controlling appropriately a temperature of the hot water stored in a tank and a temperature of the hot water used for...
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JP2008107060 |
To provide an air conditioner capable of properly returning oil even when a refrigerating machine oil non-compatible or hardly compatible to a refrigerant is applied.In this air conditioner 1 using the PAG refrigerating machine oil non-c...
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JP2008101787 |
To ensure air-conditioning performance as an entire air conditioner while preventing a refrigerant from making a passing sound when switching air-conditioning and heating operation.When switching each indoor heat exchanger 41 from air-co...
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JP2008082589 |
To prevent shortage of heating capacity in defrosting an air conditioner.The control device 20 controls at least any of a rotating speed of a compressor 1, pressure reduction of a pressure reducing means 4, a rotating speed of an indoor ...
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JP2008082609 |
To provide an air conditioner capable of performing ventilation with a simple and inexpensive constitution while reducing indoor air heating load in accompany with the ventilation.An auxiliary heat exchanger 44 disposed in a second air p...
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JP2008076017 |
To provide a constitution for accurately controlling humidity in response to the outlet gas temperature of a compressor even in a low flow rate area, in a refrigerating device having a high pressure domed compressor.The outlet gas temper...
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JP2008070053 |
To mainly provide a sufficient degree of supercooling in an air conditioner.The air conditioner 1 has a first heat exchanger 26 and a second heat exchanger 27 as an indoor heat exchanger 25 of an indoor unit 2, and the heat exchangers 26...
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JP2008064372 |
To provide a simply-structured highly-reliable heat storage system, which can flexibly comply with various heat supplies and heat outputs and can realize high heat density, reduced in size, easy in installation in the field, and reduced ...
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JP2008057866 |
To reduce noises of expansion valves 33a, 33b made when starting indoor units 3a, 3b of an air conditioner 1.An expansion valve control device 41 controlling operation including start control of the expansion valves 33a, 33b of the air c...
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JP2008051464 |
To provide an air conditioner capable of performing efficient and appropriate operation in both air-conditioning operation and heating operation, in the air conditioner comprising two refrigerant circuits which are a first refrigerant ci...
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JP2008039374 |
To attain space saving and improvement of workability and to improve thermal efficiency by reducing a leakage of air-conditioning air which air-conditions a bathroom or the like.This ventilating and air conditioning apparatus is provided...
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JP2008039388 |
To sufficiently ensure heating capability of an operating indoor unit in a multi-type air conditioner by appropriately controlling a stopped indoor heat exchanger and refrigerant collected in a liquid-side pipe even if the circumferentia...
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JP2008039332 |
To provide a multiple heat pump air conditioner that can ensure a normal function of a double pipe heat exchanger circuit and a gas injection circuit in both cooling and heating by operating a bridge circuit reliably.The multiple heat pu...
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JP2008039205 |
To provide a refrigerating device capable of performing gas injection operation in both of a cooling operation and a heating operation of an use-side heat exchanger while simplifying a constitution of a gas-liquid separator, in a refrige...
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JP2008040730 |
To improve serviceability and safety of a vending machine when a refrigerant is collected.The vending machine comprises an internal heat exchanger 4 disposed in a product storage chamber 1, a compressor 2 placed in a machine chamber prov...
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JP2008032250 |
To provide a method of controlling a refrigerating air-conditioning system and its device for stably controlling the refrigerating air-conditioning system in quick response even when its operated condition is changed.The method includes ...
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JP2008025886 |
To sufficiently secure heat quantity of a refrigerant for snow melting.This heat pump device comprises a refrigerant circuit 20 connected with an indoor heat exchanger 25 for allowing the refrigerant to radiate heat to the indoor air and...
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JP2008025900 |
To provide an air conditioner, capable of preventing back flow to a compressor without increasing the capacity of an accumulator.The air conditioner comprises a heat source-side unit 11 including an accumulator 19, a compressor 18 and a ...
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JP2008025885 |
To provide a heat pump device capable of switching a heating operation for indoor heating and snow melting of pavement, and a cooling operation for indoor cooling.This heat pump device comprises a refrigerant circuit 20 connected with an...
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JP2008025940 |
To prevent increase of a thickness of a refrigerant communication pipe in an air conditioning system switching indoor cooling and heating by utilizing a refrigerating cycle performed in a state of compressing a refrigerant to be higher t...
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JP2008008523 |
To adjust a discharge pressure without using a tank which needs adjustment of a refrigerant, in a refrigerating cycle.In this refrigerating cycle constituted by successively connecting a compressor 10, a condenser 30, a variable pressure...
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JP2008008592 |
To provide an air conditioner capable of arbitrarily changing a relative direction of an air flow with respect to a flow direction of refrigerant, and capable of improving heat exchange efficiency.The air conditioner 1 is provided with a...
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JP2007178114 |
To provide a refrigerant heating device capable of reducing system costs even when a plurality of object portions are heated.A power unit 60 as a refrigerant heating device for heating a refrigerant circulating in refrigerant piping 20, ...
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JP2007170725 |
To prevent the biting of a needle valve into a nozzle in fully-closing motion at restarting.In this variable ejector type refrigerating cycle, a heat pump ECU 20A stops a compressor 1, and controls a nozzle of an ejector 3 to be opened t...
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JP2007170796 |
To resolve a problem of using a ventilation air heat exchanger used as an evaporator during heating operation in the winter season as a cooling condenser in the summer season wherein a heat exchange area is too small, and it does not fun...
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JP2007163107 |
To minimize error in estimating a refrigerant amount caused by difference in solubility to the oil of a refrigerant by keeping the uniform refrigerating machine oil distributing conditions in a cycle in every refrigerant amount determini...
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