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JP2006250392A |
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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JP2006242491A |
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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JP2006226590A |
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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JP2006226589A |
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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JP3811116B2 |
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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JP2006517643A |
Refrigerant is circulated through a vapor compression system including a compressor, a gas cooler, an expansion device, and an evaporator. Preferably, carbon dioxide is used as the refrigerant. The expansion device is a work recovery dev...
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JP2006189185A |
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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JP3799220B2 |
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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JP2006177585A |
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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JP2006162186A |
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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JP2006162226A |
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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JP2006132332A |
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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JP2006087295A |
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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JP2006078092A |
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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JP2006078087A |
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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JP2006071128A |
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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JP2006071229A |
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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JP2006071174A |
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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JP2005538333A |
A turbine for generating power has a rotor chamber, a rotor rotatable about a central axis within the rotor chamber, and at least one nozzle for supplying a fluid from a fluid supply to the rotor to thereby drive the rotor and generate p...
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JP2005265278A |
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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JP2005257127A |
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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JP2005249384A |
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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JP2005527778A |
The expansion of a high pressure or intermediate pressure refrigerant in an expansion device in a transcritical vapor compression system converts the potential energy into usable kinetic energy. The kinetic energy provides work which is ...
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JP2005172336A |
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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JP2005147126A |
To provide a various energy conservation cycle combined engine capable of preventing increase of pollution and large scale loss of combustion gas mass output.Separation to superheated steam explosion force + minimum temperature combustio...
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JP3624124B2 |
To provide a refrigeration capacity regulating method of a refrigerating system employing a closed expander cycle applicable easily even to a transportation vessel having severe spatial restrictions by preventing condensates from being c...
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JP2005016742A |
To provide a heat pump capable of keeping high performance by using a screw type compressor and an expansion machine.In this heat pump, the screw type expansion machine 105 comprising a pair of male and female screw rotors 13, 14 engaged...
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JP2005016320A |
To provide a heat pump capable of preventing the occurrence of seizure in an expander using the expander and a compressor of screw type.This heat pump 1 is constituted in such a way that the oil cooling type screw compressor 101 and the ...
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JP2004301456A |
To provide a refrigerating cycle apparatus and an equipment for the same, capable of increasing the power recovery by an expansion machine.This refrigerating cycle is provided with a compressor 11, a radiator 12, the expansion machine 13...
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JP2004251558A |
To provide a refrigeration cycle device and its control method capable of sufficiently securing the reliability of an expansion device and recovering the energy in expansion, and remarkably improving the coefficient of performance.This r...
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JP2004251557A |
To provide a refrigeration device capable of performing the operation for independent cooling and heating, hot water supply cooling storage, cooling exhaust heat hot water supply, and heating hot water supply with high efficiency.This re...
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JP3563143B2 |
PURPOSE: To achieve a reduction in operation cost and equipment costs by converting an excess of power of a gas turbine to electric power by a motor when the power generated by a gas turbine is greater in operating conditions as compared...
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JP2004225928A |
To improve the power recovering efficiency by increasing a mass flow rate of a compressor, when an evaporating temperature is lowered.This refrigeration unit comprises a refrigerating circuit 2 comprising the compressor 3 and an expander...
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JPWO2002077546A1 |
Water is stored as a refrigerant in the evaporator 25 of the heat pump 20. The drive of the compressor 22 promotes the evaporation of the evaporator 25 from the water surface. Further, the water mixed with air in the injection path 21a i...
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JP2004190938A |
To provide a refrigerating plant having less pressure loss and vibration by reducing pressure pulsation on at least either of the inlet and outlet sides of a positive displacement expander.The refrigerating plant 1 comprises a refrigeran...
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JP2004190559A |
To restrain reduction in efficiency for recovering motive power by preventing excessive reduction in pressure of an expansion chamber 62 under a prescribed operation condition in a displacement expander.A connecting passage 72 is arrange...
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JP2004150671A |
To solve problems of a heat pump that necessarily has a large compressor for achieving high cooling efficiency, and that, with a circular piping constitution, has difficulty in discharging dissolved gas in water.On a passage 10 for air i...
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JP2004144399A |
To minimize the constraint of a constant density ratio by using an expansion device in accordance with the flowing direction of a refrigerant, and to achieve high power recovering effect in a wide operation range.This refrigeration cycle...
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JP2004138333A |
To minimize the restriction on constant density ratio by using an expansion device in accordance with the flowing direction of a refrigerant, and to obtain high power recovering effect in a wide operation range.This refrigeration cycle d...
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JP2004137979A |
To obtain high power recovery effect in a wide operation range by avoiding restriction of density ratio-constant to the utmost with an expansion machine in response to the flow direction of a refrigerant.The expansion machine uses carbon...
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JP2004506831A |
The inventive method and device are used for systems for reducing gas pressure in a well or a main pipe-line to the gas pressure required by a customer. A known method for utilizing the energy of a gas during a reduction of the pressure ...
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JP2004028573A |
To reduce an axial load and diametral load in an expressor of a refrigeration system.The expressor 20 of the closed refrigeration system is provided with a screw type expander 120 and a screw type compressor 220. A discharge port 120-2 o...
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JP2003336573A |
To provide a composite power generation system capable of turning solar energy (heat energy) stored in all the substances (heat sources) on the earth into resources as electricity useful for human beings and heat energy.In this composite...
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JP2003322425A |
To reduce a purchase electric power quantity required for re- compression of a refrigerant by using vaporizing expansion force of a high pressure refrigerant for re-compression of a low pressure refrigerant.A generator of 4 can be rotate...
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JP2003314859A |
To provide an air conditioner in which an indoor unit is movable to a place of use for cooling and heating.The air conditioner consists of the indoor unit 10 and an outdoor unit 20. A compressor 40, a condenser 50 and an evaporator 52 ar...
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JP2003240366A |
To solve a problem that flow-in of oil into an evaporator is impossible to be restrained while securing oil supply to an expander when using the expander as a pressure reducing device, in a conventional refrigerating air-conditioner usin...
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JP2003172244A |
To provide a simple-structured and highly reliable rotary expander.An annular piston 65 is stored in a cylinder 61. A blade 66 integrated with the piston 65 is supported by a pair of bushes 67 attached to the cylinder 61. A first eccentr...
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JP2003517128A |
A two spool environmental control system includes a low pressure spool subsystem comprising a low pressure turbine and a condenser downstream of the low pressure turbine. A high pressure spool subsystem is in air flow communication with ...
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JP2003139357A |
To provide a cooling and refrigerating system improving the cooling capacity and efficiency by effectively using cold heat energy of generated hydrate.The hydrate generated by reacting gas with water is used as a heat removal source in a...
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JP2003139059A |
To provide a highly reliable fluid machine having an oil feeding mechanism with a simple structure.In this fluid machine, a compressor 50, an expander 60, and an electric motor 40 are housed in one casing 31, and these compressor 50, exp...
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