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JP4665736B2 |
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JP2011058705A |
To reduce a temperature difference of delivery temperatures of both compressors in a refrigerating cycle device connecting a second compressor of a single body in parallel with a first compressor integrated with an expander.The refrigera...
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JP2011058774A |
To provide a heat pump device considering other performance such as safety and stability while enabling highly efficient operation.The heat pump device 100 includes a compressor 11, a radiator 12, an expansion device 13 and an evaporator...
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JP4652985B2 |
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JP4650049B2 |
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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JP2011047575A |
To provide a system capable of converting volume change caused by the temperature of a refrigerant into mechanical energy and generating electric power by using the mechanical energy.An ammonia refrigerant in the liquid state is made to ...
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JP4649268B2 |
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 CO2evaporated by an evaporator 11 to a heat...
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JP4642673B2 |
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JP4644278B2 |
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JP2011032964A |
To provide a rotary expander in which a sliding loss at a bearing is reduced.A rotary expander 100 comprises a cylinder 15, a shaft 13, a piston 19, a vane 21, an intake pipe 27, and the bearing 17. The vane 21 partitions a space between...
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JP4631627B2 |
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...
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JP2011027358A |
To provide a heater preventing liquid compression while enabling cooling treatment of an intermediate temperature liquid.The heater 100 includes a heat pump 101 and a hot water storage tank 102. The heat pump 101 has: a refrigerant circu...
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JP4626635B2 |
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JP4622193B2 |
To assure smooth operation and reliability even in the case of using a fluid machine having a constant internal capacity ratio as an expansion machine, in a refrigerating unit recovering power from a high pressure refrigerant by the expa...
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JP2011017518A |
To save energy by generating electric power by using a root blower in winter etc.This evaporation-type cooling device includes: an evaporator 1 boiling and evaporating an evaporative liquid for cold while reducing pressure; a condenser 2...
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JP4591402B2 |
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JP2010243021A |
To increase adjustment amount of the volume of an expansion chamber as much as possible in an expansion device connected to a refrigerant circuit for performing a refrigerating cycle.A plurality of expansion parts (2, 3, 4) constituting ...
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JP4561225B2 |
When an expansion mechanism (60) having an expansion chamber (62) is equipped with a backflow prevention mechanism (80) to suppress the outflow of fluid from the expansion chamber (62) to a communication path (72), it is possible to redu...
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JP2010223438A |
To provide a scroll expander capable of being securely started.The scroll expander comprises: an expander 2 which has an expander fixing scroll 21, an oscillation scroll 40 combined with the expander fixing scroll 21 to form an expansion...
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JP2010216715A |
To solve a problem wherein when heat exchange is performed in a radiator between intermediate temperature water stored within a hot water storage tank and a refrigerant, a COP of a refrigerating cycle device is lowered.By returning inter...
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JP4552721B2 |
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JP2010210160A |
To prevent step-out and runaway of an expanding mechanism by immediately stopping an output shaft, when the output shaft of the expanding mechanism is abnormally rotated.When the output shaft (37) is continuously rotated with abnormal ro...
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JP2010169337A |
To enhance the reliability of a refrigerating cycle device by providing a first compressor and a second compressor having different structures.The refrigerating cycle device 100 includes the first compressor 101, the second compressor 10...
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JP4519859B2 |
A control system for a steam turbine driven chiller unit is provided. The control system automatically utilizes the full range of the governor, compressor pre-rotation vanes, and hot gas bypass valve capabilities to control the capacity ...
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JP4517684B2 |
Two rotary mechanism parts (70, 80) are provided in a rotary expander (60). The first rotary mechanism part (70) is smaller in displacement volume than the second rotary mechanism part (80). A first low-pressure chamber (74) of the first...
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JP4516127B2 |
The provision of a refrigerating air conditioner that has no limitation on the structure of the main compressor mechanism, and that the lubricating oil levels within the first hermetic vessel and the second hermetic vessel can be regulat...
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JP2010164225A |
To reduce leakage amount of refrigerating machine oil to inside of a fluid chamber in a two-cylinder type expansion device. This refrigerating device includes an oiling pipe(91) into which high pressure refrigerating machine oil within a...
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JP2010164224A |
To make oiling pressure to an expansion mechanism appropriate and to suppress leakage amount of refrigerating machine oil from the expansion mechanism. An expansion device (30) includes the expansion mechanism (31) within an expansion de...
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JP2010164028A |
To provide an expander equipped with an expanding mechanism to generate power by expanding a refrigerant, capable of lubricating a sliding surface of the expanding mechanism with a less amount of refrigerator oil. The expander (30) is eq...
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JP2010164280A |
To reduce heat loss of an expander due to refrigerating machine oil, in a refrigerating device equipped with a coolant circuit connected with the expander for generating power by expanding coolant. An air conditioner (10) is equipped wit...
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JP4492284B2 |
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JP2010096175A |
To make a flow rate adjustable while reducing an energy loss in a turbine generator.The turbine generator (2) includes a turbine impeller (5), and a plurality of nozzles of which the inner channels (40) are throttled by a throat (42). Th...
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JP4457928B2 |
A first and a second expansion and compression machine (30, 40) having different volume ratios ( Vc / Ve ) are connected in parallel to a refrigerant circuit (10) of a refrigeration apparatus. Expanders (31, 41) of the expansion and comp...
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JP4457831B2 |
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JP2010091206A |
To prevent the heat-radiation amount of an indoor heat exchanger from being decreased, in an air conditioner equipped with a refrigerant circuit for performing a steam compression type refrigerating cycle even if a compression stroke per...
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JP2010078216A |
To provide an ebullient cooling device driving a refrigerant pump for refrigerant circulation without using a motor.EGR gas is supplied to a heat exchanger 11, and is cooled by latent heat generated when part of a liquid phase refrigeran...
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JP4442068B2 |
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JP2010048466A |
To reduce noise caused by vibration of an expansion device muffler and material cost of an inflow pipe of an expander.A refrigerating device includes: a refrigerant circuit (2) formed by sequentially interconnecting a compressor (40), an...
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JP2010048446A |
To provide a hybrid air cycle refrigerating and cooling unit improving system efficiency.The hybrid air cycle refrigerating and cooling unit is formed by combining an air cycle refrigerating and cooling unit 9 and a heat drive type cooli...
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JP2010043556A |
To provide an expander unit automatically adjusting the difference between the flow rate of refrigerant flowing in a sub compressor and the flow rate of refrigerant that can be sucked while materializing a compact structure, and a reliab...
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JP2010038408A |
To provide an outdoor heat exchanger having a heat source side heat exchanger and a gas cooler which share plate-shaped fins and are integrated with each other and improving heat exchange effectiveness between the heat source side heat e...
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JP2010038463A |
To provide a refrigerating cycle device capable of securely detecting an abnormal state of an expansion mechanism for performing power recovery and of achieving efficient operation.The refrigerating cycle device is provided with a compre...
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JP4414924B2 |
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JP4410980B2 |
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JP2010014301A |
To provide an air cycle refrigerating unit capable of cooling a high temperature side input temperature in a regenerative heat exchanger to a degree of normal temperature and improving a refrigerating capacity.This air cycle refrigeratin...
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JP2010007726A |
To provide a miniaturizable motor-integrated magnetic bearing device reduced in the number of parts and assembly costs, and increased in natural frequency.A main axis 13 with a compressor impeller 6a and a turbine impeller 7a attached to...
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JP2010002066A |
To adjust a flow rate, and to reduce an energy loss in a turbine generator.This turbine generator 2 includes a turbine impeller 5, a power generating section 6 driven by the turbine impeller 5, a nozzle 4 having a throttle 42 throttling ...
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JP2009296750A |
To provide a motor-integrated magnetic bearing device that reduces a load capacity of an axial magnetic bearing, and improves the efficiency of a turbine.The motor-integrated magnetic bearing device commonly uses rolling bearing 15, 16 w...
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JP2009287866A |
To provide an air cycle refrigerating device capable of preventing decline in freezing capacity due to snow generated along with adiabatic expansion and easily mounted to a container refrigerating unit etc. having a narrow installation s...
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JP4382151B2 |
An expander-compressor unit (10) includes a two-stage rotary expansion mechanism (3) having a first cylinder (41) and a second cylinder (42). In the expansion mechanism (3), a suction port (71) facing a working chamber on the upstream si...
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