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Matches 301 - 350 out of 484

Document Document Title
JP2007183077
To provide a refrigerating device capable of improving efficiency in full load, and also keeping high efficiency in partial load, with respect to a refrigerating device using a plurality of refrigerating machines.This refrigerating devic...  
JP2007183078
To provide a refrigerating machine and a refrigerating device capable of improving energy efficiency without complicating a compressor.This refrigerating machine 10 has an evaporator 11 exerting refrigerating effect by retrieving heat fr...  
JP2007178072
To provide an air conditioner for a vehicle capable of improving refrigerating capacity in idling operation under a high outside air temperature by lowering a radiator outlet-side refrigerant temperature by using a new heat medium, not b...  
JP2007170765
To smoothly start a heat pump device by promptly ensuring high and low pressure difference in starting the heat pump device loading a compressor integrated with an expander.This refrigerating cycle device is composed of a compressing por...  
JP2007162491
To improve the long-term durability of a rolling bearing, to perform stable control by a controller of simple constitution and to obtain stable high speed rotation while keeping an appropriate clearance between respective impellers in a ...  
JP2007162490
To improve the long-term durability of a rolling bearing in a compression expansion turbine system for an air cycle refrigerating cooling system used for a refrigerating warehouse, a low temperature room below zero, air-conditioning, or ...  
JP2007162728
To provide a motor integrated magnetic bearing device stably controllable even when axial overload operates.The motor integrated magnetic bearing device comprises rolling bearings and magnetic bearing combined, the rolling bearings 15, 1...  
JP2007162723
To provide a motor integrated magnetic bearing device constructed with combined rolling bearings in a stably controllable manner even when axial overload operates thereon, to simplify the construction of a controller.An electromagnet 17 ...  
JP2007162492
To improve the long-term durability of a rolling bearing, to perform stable control by a controller of simple constitution, to obtain stable high speed rotation while keeping an appropriate clearance between respective impellers and to p...  
JP2007162725
To provide a motor integrated magnetic bearing device constructed in a stably controllable manner even when high load operates on a motor to simplify the construction of a controller and reduce the length of a spindle to be rotated at a ...  
JP2007155277
To provide a refrigerating cycle capable of obtaining good cooling efficiency even in a condition of a comparatively low thermal load and maintaining an optimal cooling efficiency even when the load fluctuates, in the case a refrigeratin...  
JP2007155155
To provide a refrigerating cycle device of high efficiency and high reliability, using an expander.This refrigerating cycle device comprises a refrigerating cycle composed of a compressor 501 compressing a refrigerant, a radiator 502 coo...  
JP2007147179
To positively secure a certain amount of oil in an expander by starting an operation of a compressor after the excess oil remaining in the expander is discharged to a specific amount by operating the expander at a low rotational frequenc...  
JP2007147211
To stabilize operation of a refrigerating cycle device equipped with an expansion mechanism capable of recovering pressure energy at the time of expansion, and especially, to improve stability at the start of its operation.The refrigerat...  
JP2007132622
To effectively use energy in a heat pump hot water supply device using a fluid transportation device with a compressor and an expander connected by the same rotational shaft.A refrigerant circuit 11 has the fluid transportation device 16...  
JP2007127316
To solve a problem in cooling or refrigeration of a vehicle wherein presently, a system of directly carrying out rotary driving of a semi-hermetic compressor by using one part of output from an output shaft of an engine or the like, or a...  
JP2007120914
To provide a vapor generation system of high energy efficiency.This vapor generation system comprises a supply passage 20 in which a heated medium flows, and a heat pump 10. The heat pump 10 has a heat absorbing portion 11 arranged in th...  
JP3953871
To provide a refrigeration air conditioner capable of obtaining a desired refrigerant pressure without increasing the power of the entire compressor, and further improving the refrigerating effect. In this refrigeration air conditioner h...  
JP3952951
To drive a freezing device in any operating condition, and to improve COP of the freezing device. Carbon dioxide is filled as a refrigerant in a refrigerant circuit 10 of the freezing device. A first compressor 21 and a second compressor...  
JP2007113815
To secure lubrication of an expander of a refrigerating cycle and to improve reliability and efficiency thereof.A compressor 21 and the expander 22 are fixed to each other, and connected by an oil equalizing tube and a pressure equalizin...  
JP3940835
To realize a diffusing temperature of a high temperature, and a floor temperature of a little low temperature required for comfortable air-conditioning, at excellent energy efficiency. This air conditioner is provided with an outdoor sid...  
JP2007078196
To provide a refrigerating cycle device capable of driving an expansion machine with high reliability including starting by controlling rotational frequency of a rotating machine by estimating a magnetic pole position of a rotor of the r...  
JP2007071507
To provide a sealed type air-refrigerant freezer having a mechanism preventing direct contact of atmospheric air with a refrigerant to be filled in a pipe arrangement in the device, and using dry air, or dry nitrogen as the refrigerant t...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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...  

Matches 301 - 350 out of 484