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JP2005076515 |
To suppress cost increase and maintain oil quantity of each compressor without applying special working on shells of compressors.Three or more compressors 11, 12, 13 are connected in parallel in a coolant circuit Kb, shells 11a, 12a, 13a...
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JP3657579 |
To provide an air-conditioning system for using two types of cycles together by using one compressor. In the air-conditioning system 1, a multi-vane type (or scroll type) compressor 2, an indoor equipment heat exchanger 11, an outdoor eq...
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JP2005069547 |
To provide an outdoor unit of a heat pump device capable of easily performing alignment between the driving pulley of a power source and the driven pulley of a compressor and adjustment of tension of a belt to be wound around the pulleys...
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JP2005061774 |
To restrain an increase in viscosity of refrigerating machine oil, by restraining a temperature drop in a low pressure side refrigerant.This refrigeration unit has a refrigerant circuit 10 for performing a refrigerating cycle by connecti...
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JP2005055113 |
To prevent a compressor from being damaged by excessive compression in starting.A bypass valve 81 is opened from the stop of compressors 10a, 10b to the lapse of specified time, and a refrigeration circuit at the side of a condenser 20 i...
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JP2005040000 |
To reduce the capacity of a compression space of a compressor, the size of the compressor as a whole, and the size of an outside unit on which the compressor is mounted and a refrigeration unit (including an air conditioner), while maint...
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JP2005030708 |
To provide a cooling structure that can cool a semiconductor irrespective of the load of air conditioning operation.A geothermal heat pump system 1 is provided with a heat collection circuit 2 for collecting geotherm, a heat pump circuit...
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JP3640749 |
To provide a refrigerating cycle of air conditioning equipment which can conduct surely a return of ice machine oil discharged from a compressor, in accordance with an operating frequency of the compressor. In a refrigerating cycle of ai...
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JP2005024231 |
To solve a problem on an installation space and the construction as a hot water storage tank of large capacity is necessary in a conventional heat pump system having a heat storage part.This heat storage type heat pump system comprises a...
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JP2005023877 |
To provide a hermetic compressor with a center impeller bearing to be balanced during operation while improving efficiency and reliability and reducing noises and vibration.A first balance weight 130 is provided at the end of a sub-shaft...
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JP2005023878 |
To provide a hermetic electric compressor having reduced cost by eliminating a deburring process for a feed pipe formed by metal press molding and allowing easy dimensional management of a press-fit portion during press-fitting the feed ...
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JP2005016897 |
To provide a refrigeration system and an air conditioner for a vehicle having high cooling coefficient of performance for canceling respective nonconformity generated when CO2 gas and HC-based gas are separately used by using mixed refri...
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JP3632636 |
To prevent lowering of performance due to exhaust heat of a compressor, in air-conditioning equipment having a structure wherein refrigerating cycles of a desiccant system and a vapor compression system are combined in a casing. The comp...
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JP3635120 |
PURPOSE: To improve heat transfer efficiency in a freezing apparatus utilizing a compressor equipped with an intermediate pressure boat by combining a drain line from a lower point of a shell to a more lower line of an auxiliary suction ...
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JP2004360928 |
To provide a mounting structure of a horizontal compressor advantageous to reducing the size and saving the space of a refrigerating/air conditioning device enclosure by reducing the space to the utmost between two compressors only by si...
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JP3629587 |
To obtain an air conditioner and an outdoor machine and a refrigerating device using a refrigerating cycle with high reliability in which consumed power is reduced with high efficiency and which can be driven by a commercial power supply...
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JP2004347158 |
To provide a condenser for preventing the remaining of lubricating oil separated from a heat exchanging medium without narrowing the area of a heat exchange part.The condenser comprises header pipes 11, 12 connected together via a plural...
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JP2004343881 |
To offer a winding which has a crazing resistance, a compressor driving motor using it, and a compressor, and a freezing system.This winding consists of a core wire consisting of a conductor and a sheath layer for covering the periphery,...
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JP2004332637 |
To provide an oil separating structure for a refrigerant compressor capable of managing both of suppression of performance deterioration of the refrigerant compressor and good oil separating capacity.Delivered refrigerant gas is introduc...
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JP2004333107 |
To provide an air conditioner and an outdoor unit, preventing noise generated from an indoor unit by constituting a defrosting cycle so that a refrigerant is circulated in the outdoor unit itself during defrosting operation of the outdoo...
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JP2004301074 |
To improve the cooling efficiency of a motor for compressing carbon dioxide.A compression means 4 is formed of a pre-stage compressing part 11a and a post-stage compressing part 11b, and a piston 41 of each compressing part is driven by ...
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JP2004293958 |
To provide a refrigerant cycle equipment capable of realizing the optimum heat radiation capacity of refrigerant in a gas cooler and an auxiliary heat exchanger depending on use condition at a low cost.This refrigerant cycle equipment is...
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JP2004293856 |
To prevent the fracture of a refrigerant pipe 44 by preventing the vibration of a compressor from being repeatedly applied to the refrigerant pipe 44.The compressor 4, an accumulator 12 and an oil separator 13 are directly placed on a fi...
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JP2004270544 |
To provide a magnetizing and assembling method which obtains an electric compressor reduced in cost and having high reliability, in the electric compressor provided with a rotor comprising a magnet therein.Magnets 130 are inserted in a p...
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JP3600163 |
To provide an on-vehicle air conditioner capable of sufficient heating, cooling, and dehumidifying operation even in an automobile with less waste heat quantity such as a hybrid car. This device is provided with a freezing circuit provid...
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JP2004251528 |
To solve the problems of a refrigerating air-conditioning device of a supercritical cycle as in the past that flow rate matching between a compressor side and an expansion machine side is difficult since the compressor and the expansion ...
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JP2004239506 |
To provide a heat pump unit having good mountability and improved heat pump cycle operating efficiency by arranging a heat transfer means integrally with a compressor.The heat pump unit comprises the compressor 2, a condensation heat exc...
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JP2004218964 |
To provide a reliable refrigerating plant capable of securely and safely lowering the delivery temperature of a compressor even when operation with high compression ratio is performed by using carbon dioxide as refrigerant.In this refrig...
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JP2004218849 |
To prevent the refrigerant and oil from being pooled in refrigerant communication pipes in an air conditioner comprising a plurality of heat source units.This air conditioner 101 comprises the heat source units 102a-102c, the refrigerant...
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JP2004219031 |
To provide an air conditioner provided with an inverter for driving an electric compressor, with simplified condensation preventing structure in a casing of the inverter and reduced cost.This air conditioner is provided with the electric...
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JP2004211681 |
To provide a displacement variable rotary compressor for avoiding problems that the efficiency of a refrigerating cycle deteriorates or power consumption of the compressor increases during bypassing by re-sucking a refrigerant to be bypa...
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JP2004204679 |
To provide a fluid compressor and freezing equipment preventing deterioration of ester-based freezing machine oil, having high durability and reliability and holding the performances for a long period of time, even if using fluororesin f...
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JP2004205195 |
To provide a screw refrigerating unit of which structure can be simplified and made small and burden for maintenance can be reduced.In this screw refrigerating unit 1 provided with a refrigerant circulation flow passage I including a scr...
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JP2004196082 |
To solve the problem wherein in an air conditioner for a vehicle provided with a variable displacement type compressor, a control valve controlling the displacement of the compressor based on differential pressure between two pressure mo...
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JP2004184022 |
To improve the coefficient of performance during cooling operation while suppressing temperature rise in a sealed container by using an intermediate cooling circuit for permitting heat radiation of a cooling medium discharged from a firs...
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JP2004183605 |
To provide an electric compressor capable of surely cooling an electric motor, preventing excessive temperature rise of an intake refrigerant, and not deteriorating smoothness of an action of a compressor mechanism.This electric compress...
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JP2004177020 |
To provide a water heater A for improving heat pump performance when the outside air temperature is low.This water heater A has a refrigerant circuit 4 for annularly connecting a compressor 1 for compressing a refrigerant, an oil separat...
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JP2004170047 |
To provide an air conditioning system with a plurality of heat source units, allowing the control of the amount of a cooling medium while eliminating pipe units and suppressing an increase of site piping work.The air conditioning system ...
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JP2004156858 |
To improve reliability by using a refrigerating machine oil exhibiting weak mutual solubility for coolant and, when the ambient temperature of an evaporator is low, reliably returning the refrigerating machine oil to a compressor.This re...
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JP2004150749 |
To avoid limitation of a constant density ratio to the utmost, and obtain high power recovering effect in a wide operation range by using an expander in accordance with a flow direction of cooling medium.This refrigerating cycle device u...
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JP2004144462 |
To prevent oil from staying in an evaporator, to provide an excellent coefficient of performance, and to secure sufficient oil circulation.An electronic expansion valve 3 is controlled to bring a refrigerant in an outlet of the evaporato...
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JP3550772 |
PURPOSE: To improve the comfortableness of air conditioning by eliminating frequent oil returning. CONSTITUTION: The refrigerator comprises a plurality of outdoor units 2A, 2B, ... and a plurality of indoor units 3A, 3B, ... A plurality ...
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JP2004101107 |
To prevent damage caused by liquid compression of a compressor without providing a receiver tank in a transition critical refrigerant cycle apparatus having supercritical pressure on the high pressure side.This transition critical refrig...
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JP2004084631 |
To secure sealability at starting up of a compressor at a low cost.A fixed scroll 6 and a movable scroll 7 are provided at the inside of a casing 3 provided with a suction port 3a and a discharge port 3b, and the movable scroll 7 is turn...
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JP2004085178 |
To reduce the energy consumption of a vapor compression type refrigerator.An evaporator 40 is heated by the waste heat generated in an electric circuit 12 such as inverter. According to this, the compression ratio of a compressor 10 can ...
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JP2004069285 |
To provide an oil equalizing circuit capable of increasing the reliability of oil supply to compression mechanisms in a refrigerator having the plurality of compression mechanisms.The compressor group 11 of an air conditioner 1 mainly co...
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JP2004069138 |
To provide an electric compressor device capable of cooling an inverter without being influenced by environmental temperature.In the electric compressor device, a motor section 110 and a compressor section 120 are housed in a housing 130...
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JP2004064981 |
To allow effective use of a torque and reluctance torque by a magnetic flux in a simple rotor structure, and easily achieve motor design for forming an induced voltage in an almost sine wave form.The motor is provided with a space 5 for ...
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JP3523205 |
To provide a turbo compressor capable of reducing deformation of a product occurred in a welding process and simplifying a manufacture and an assembly. This turbo compressor is constituted by disposing a first and second bearing housings...
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JP2004036512 |
To provide an air-conditioner constituting a refrigerating cycle, with a cooling medium passage for reducing pulsating noises without a cost increase.A muffler chamber 6 to be interconnected to a suction chamber 5 via a first cooling med...
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