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JP2007057114 |
To provide an air conditioner capable of carrying out power-saving.A bypass path 110 bypassing a discharge side and a suction side of a compressor 21, and a drive unit 120 provided in the middle of the bypass path 110 to rotatively drive...
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JP2007057141 |
To efficiently operate a refrigeration cycle apparatus by controlling the high-pressure side refrigerant pressure of the apparatus.The refrigeration cycle apparatus 12 includes a refrigeration cycle 5 where a compressor 1, a heat radiato...
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JP2007045198 |
To secure the amount of charge for a high-voltage battery without adversely affecting driving performance, while enhancing the mountability of a vehicle's power source and auxiliary devices and the efficiency of recycling deceleration en...
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JP2007040593 |
To improve economic efficiency by effectively utilizing exhaust heat of a power generation system using a fuel cell and internal combustion engine.This hybrid system S1 is structured by combining a natural refrigerant heat pump system 1 ...
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JP2007024459 |
To prevent abnormal high-speed rotation of an expander caused by occurrence of problems in a control device of the expander of a refrigeration cycle, and to improve reliability of the expander.A rotating portion of the expander 22 is pro...
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JP2007017040 |
To provide an expansion machine capable of enhancing the operation efficiency of a refrigeration cycle device by minimizing reduction of power recovery amount in the expansion machine, and a refrigeration cycle device using this expansio...
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JP2007014172 |
To provide a generator control device that can surely brake a generator even if the device breaks down.When there occurs an abnormality such that a converter 18 or a generator control unit 21 breaks down, the generator 2b cannot be appli...
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JP3897681 |
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. In this method for determining p...
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JP2006349298 |
To prevent liquid compression in a compressor by allowing liquid refrigerant in oil separated by an oil separating mechanism to be evaporated and then sucked by the compressor, in a refrigerating cycle device.This refrigerating cycle dev...
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JP2006349297 |
To control an expander inlet point to increase power recovering quantity of an expander in an expander system.This heat pump device has a refrigerant circuit 26 composed of a compressor 1, a radiator 2, a first throttle device 25, the ex...
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JP3888255 |
To surely reduce consumption power of a compressor in a vapor compression type refrigerator. The expander 4 and the compressor 1 are connected through a one-way clutch 6.Thereby, the number of rotations of the expander 4 is less than tha...
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JP2006329445 |
To provide a natural refrigerant heat pump system improved in economic efficiency and operability.In this natural refrigerant heat pump having a cycle for sending a natural refrigerant such as CO2 evaporated by an evaporator 11 to a heat...
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JP3870951 |
To provide a refrigerating cycle device and its controlling method, capable of providing high power recovery effect within a broad operation range without reducing an amount of circulating mass flowing through an expansion machine, and r...
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JP2006284099 |
To provide a system effectively using the property of gas hydrate for efficiently supplying cold.The system comprises a gasifying device for gasifying gas hydrate to produce gas, a gas storage container for storing the gas, a turbine to ...
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JP3863555 |
To avoid the constraint that the density ratio is constant as much as possible, and to obtain high power recovering effect in a wide operation range. This refrigeration cycle device uses carbon dioxide as a refrigerant and has a compress...
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JP3863480 |
To reduce the constraint that the density ratio is constant as small as possible, and to obtain high power recovering effect in a wide operation range. This refrigeration cycle device uses carbon dioxide as refrigerant and has a compress...
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JP2006266653 |
To prevent reduction of recovering power of an expander 12 and to control high pressure of a refrigerant circuit 10 with high accuracy even under an operating condition where sucked refrigerant of a compressor 11 becomes less dense, in a...
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JP2006266652 |
To reduce starting torque, and to prevent defective start of a compressor 11 while preventing cost-up in accompany with increase in size of a motor 17, in a freezing apparatus wherein an expander 12 and a compressor 11 are mechanically c...
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JP2006258093 |
To provide a scroll expansion machine of a little thrust loss and highly efficient and reliable by improving lubricity at a thrust slide part with using characteristics unique for the scroll expansion machine in a scroll fluid machine.Th...
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JP2006258330 |
To provide a refrigerating plant with a fluid machine having an expander and a compressor connected to each other via a rotating shaft, having a wider range of capability.To a refrigerant circuit 10 of the refrigerating plant, first and ...
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JP2006258331 |
To provide a refrigerating apparatus with a fluid machine having an expander and a compressor connected to each other via a rotating shaft, avoiding pressure rise in a refrigerant circuit during non-steady operation.To the refrigerant ci...
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JP2006250392 |
To sufficiently supply lubricant to an expander and to perform a defrosting operation capable of promoting energy saving in a refrigerating cycle device comprising a compressor and the expander.This refrigerating cycle device 10 comprise...
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JP2006242491 |
To provide a refrigerating cycle device capable of effectively recovering expansion power with a simple constitution and reducing power consumption, in the refrigerating cycle device utilizing an expander.In this refrigerating cycle devi...
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JP2006226590 |
To prevent degradation of evaporation performance by refrigerator oil in an evaporator by surely lubricating an expander and a compressor.A refrigeration cycle is composed by sealing a refrigerant and refrigerator oil in a circuit with t...
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JP2006226589 |
To safely operate an expander even in startup, in a refrigeration cycle device effectively recovering energy generated by expansion of a refrigerant.This refrigeration cycle device is provided with: a refrigeration cycle composed by seal...
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JP2006220143 |
To provide a displacement fluid machine having a simple structure and capable of reducing mechanical friction loss of an expander to improve energy efficiency.In this displacement fluid machine 1, the expander 2 provided with an expansio...
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JP2006189254 |
To avoid the constraint that the density ratio is constant as much as possible, and to obtain high power recovering effect in a wide operation range.This refrigeration cycle device uses carbon dioxide as a refrigerant and has a compresso...
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JP2006189185 |
To provide a refrigerating air conditioner of steam compression type having an expander and capable of ensuring lubrication of the expander.Pressure in respective sealed vessels 21c, 22c of a compressor 21 and the expander 22 is kept at ...
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JP2006177585 |
To provide a compact refrigeration device of high performance capable of reducing temperature difference at an entrance of a freezing chamber.This refrigeration device comprises the freezing chamber 11 for freezing a treated object insid...
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JP2006162186 |
To improve reliability of a refrigerating cycle device for effectively recovering energy generated by the expansion of fluid.This refrigerating cycle device forms a main circuit of a refrigerating cycle by successively connecting a compr...
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JP2006162226 |
To improve a cooling capacity of an indoor heat exchanger during cooling operation, and as a result, to improve COP during the cooling operation in a cooling device carrying out a supercritical cycle by compressing a refrigerant to a sup...
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JP3811116 |
To provide a refrigerating cycle device with a low cost and a high efficiency, by means of omitting a four-way valve which reverses a flow direction of a refrigerant that flows in an inner heat exchanger and an expander in an operational...
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JP2006138631 |
To compose a circuit capable of reducing power recovery loss as much as possible while matching a flow rate to work because of using an expansion machine of a type having a simple mechanism whereas a conventional one needs a complicated ...
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JP2006132332 |
To improve reliability of a fluid machine by securing oil supply quantity to both of an expansion mechanism 60 and a compression mechanism 50.In the fluid machine provided with the expansion mechanism 60 and the compression mechanism 50,...
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JP3799220 |
To provide a displacement device improved to restore loss in an expansion process. This device is furnished with a first rotor furnished with a plural number of spiral projected parts 42 in its outer periphery and a second rotor to be en...
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JP2006105564 |
To improve the cooling capability or heating capability of a vapor compressing type refrigerating cycle using a fluid machine by preventing a thermal loss caused between discharged refrigerant of a compression mechanism and expanded refr...
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JP2006090639 |
To attain high COP operation while balancing the mass flow of a refrigerant passing through a compressor and the mass flow of a refrigerant passing through an expander.The refrigerating apparatus is provided with a refrigerant circuit 10...
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JP2006087295 |
To provide improved cooling to the components and/or the subsystems for an electricity generating system.A method of cool the components and/or the subsystems for the electricity generating system consists of a process of providing a sup...
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JP2006078087 |
To perform an energy-saving operation by sucking a refrigerant in a proper wet state that provides a highest performance coefficient or a coefficient close thereto to a compressor.This refrigeration unit comprises a refrigerant circuit 2...
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JP2006078092 |
To provide an air cycle air conditioning system capable of improving freezing capability by raising the expansion ratio of an expansion turbine while preventing icing of drain.This system comprises the expansion turbine 20 expanding air ...
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JP2006071174 |
To correct the imbalance in flow rates in a compressor 11 and an expander 12 when operating conditions are changed, and to prevent the lowering of COP of a refrigerating device.An internal heat exchanger 23 capable of adjusting a tempera...
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JP2006071128 |
To suppress the formation of frost, stably and accurately control the operation of an air refrigerant unit, and reduce running cost.An air flow path 4 is formed between the air refrigerant unit 5 using an expander 9 for depressurizing co...
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JP2006071229 |
To improve the efficiency of a heat pump device having a constitution that a compressor and an expander are integrated.This heat pump device is provided with a refrigeration cycle formed by successively connecting the compressor 2, a rad...
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JP2006046222 |
To provide a displacement type compressor provided with a communication passage and a circulation control mechanism and capable of suppressing reduction of efficiency of power recovery due to dead volume of an expansion chamber formed in...
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JP2005300031 |
To provide a refrigerating cycle device and its controlling method, capable of providing high power recovery effect within a broad operation range without reducing an amount of circulating mass flowing through an expansion machine, and r...
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JP2005265278 |
To provide a refrigeration device to perform a supercritical cycle, capable of enhancing the efficiency using an expanding machine having specifications to suit the operating conditions.The refrigeration device is configured so that the ...
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JP2005257127 |
To provide a natural refrigerant heat pump system capable of recovering low-temperature energy held by a natural refrigerant after adiabatic expansion to effectively utilize the low-temperature energy.The natural refrigerant such as CO2 ...
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JP2005256667 |
To inhibit efficiency deterioration of power recovery under a condition where an actual expansion ratio becomes smaller than a designed expansion ratio when a displacement expander is used in a steam compression type refrigeration cycle ...
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JP2005249384 |
To save energy by always maintaining a high coefficient of performance in a refrigerating cycle device with a refrigerant operated at a supercritical pressure on a high-pressure side.This refrigerating cycle device comprises a memory 10a...
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JP2005172336 |
To provide a natural refrigerant heat pump system improved in its economical efficiency and operability.In this natural refrigerant heat pump having a cycle for sending a natural refrigerant such as CO2 vaporized by an evaporator 11 to a...
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