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JP4140642B2 |
In a refrigerant circuit (10) of a refrigerating apparatus (1), a pulsation absorbing device (30) is provided. In the pulsation absorbing device (30), a piston (32) is accommodated in a cylinder member (31) to divide its cylinder chamber...
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JP2008190376A |
To provide a turbine unit for air cycle refrigerating machine that can enhance a long-term durability of rolling bearing against loading of thrust load, can effect a stable high-speed rotation keeping a very small clearance between blade...
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JP2008190736A |
To restrain the lowering of efficiency of a refrigerating cycle apparatus by restraining the thermal transfer from a compressor to an expander through piping.This refrigerating cycle apparatus 100 includes: an oil equalizing pipe 25, one...
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JP4131531B2 |
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JP2008175402A |
To reduce power recovering loss in starting a compressor of a refrigerating cycle device effectively recovering energy generated by expansion of fluid.The refrigerating cycle device is constituted by successively connecting the compresso...
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JP2008175496A |
To restrain decrease in enthalpy of a refrigerant discharged from a compression mechanism and lowering of heating capability of a refrigerating cycle device due to movement of heat of compressed refrigerant in high temperature state to t...
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JP4122925B2 |
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JP2008164267A |
To realize a refrigerating cycle device using an efficient and reliable expander.The refrigerating cycle device is provided with: a refrigerating cycle comprised of a compressor 501 compressing a coolant, a radiator 502 cooling the compr...
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JP2008164183A |
To provide a refrigerating cycle device capable of stopping a system without applying an excess load even when a power generator is brought into a free run state by stop of power distribution to the power generator.This refrigerating cyc...
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JP2008134024A |
To provide a refrigerating cycle device capable of keeping high power recovering efficiency of an expander even when an operating condition is changed.This refrigerating cycle device 300A comprises a main refrigerant circuit 301 includin...
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JP2008133968A |
To supply the sufficient amount of lubricating oil to an expander in a refrigerating cycle device equipped with a compressor and the expander and to attain miniaturization or weight reduction of the device.The refrigerating cycle device ...
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JP2008133967A |
To combine the sufficient supply of lubricating oil to an expander and the improvement of heating efficiency of the whole cycle in a refrigerating cycle device equipped with a compressor and the expander.The refrigerating cycle device 10...
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JP2008128583A |
To provide a refrigerating cycle device with high efficiency while retaining high reliability, capable of realizing favorable lubricated states of a compressor and an expander by a simple composition.The compressor 110 with a compression...
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JP4096544B2 |
To suppress reduction in refrigerating capacity due to internal leakage in a four-way selector valve, in a refrigeration unit comprising an expander and switching between a cooling operation and a heating operation. The refrigeration uni...
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JP2008106987A |
To improve the efficiency while keeping the balance of a refrigerating cycle regardless of operating conditions in a refrigerating cycle apparatus subjected to constraint that the density ratio is uniform.This refrigerating cycle apparat...
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JP2008106989A |
To provide a refrigerating cycle device capable of safely stopping a system when a generator is put in a free running state.The refrigerating cycle device comprising an expander, a by-pass circuit and an on-off valve has a position speed...
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JP2008106668A |
To efficiently recover expansion energy of working fluid in a power recovery type refrigeration cycle device.The expander is provided with a first fluid chamber 33a and a second fluid chamber 33b sucking and expanding working fluid, an a...
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JP2008107049A |
To improve reliability and efficiency by securing lubricity in an expander of a refrigerating cycle.A compressor 21 and the expander 22 are fixed to each other, and connected by an oil equalizing pipe 23 and a pressure equalizing pipe 24...
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JP2008106946A |
To achieve a refrigerating cycle apparatus, controlling a refrigerating cycle without an expensive pressure sensor, inexpensive, and having no possibility of leaking a refrigerant.In this refrigerating cycle apparatus, the refrigerating ...
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JPWO2006011297A1 |
The present invention provides a technique for removing frost accumulated in an air-refrigerant type cooling device in a short time. The air-refrigerant type cooling device according to the present invention is provided with a bypass lin...
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JP4077868B2 |
A heat pump apparatus includes a compressor, a motor, an expander, a generator, and a variable-speed converter. The variable-speed converter is connected to the generator and converts alternating current generated by the generator into d...
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JP4075429B2 |
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JP2008082426A |
To provide a magnetic bearing device capable of improving durability of a rolling bearing against a load of a thrust load and accurately controlling a magnetic bearing.This magnetic bearing device uses both rolling bearings 15, 16 and th...
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JP2008072808A |
To enhance long term durability of a bearing while simplifying the wiring of a rotation phase detector of the motor rotor and optimizing the coil profile of the stator.In the magnetic bearing arrangement integrated with a motor, an elect...
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JP4065315B2 |
An expander of the present invention includes a plurality of suction ports for guiding a working fluid to a working chamber, and the plurality of suction ports includes a first suction port (71) and a second suction port (73) with a diff...
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JP4065316B2 |
An expander of the invention includes: n-number of rotary type fluid mechanisms (where n is an integer equal to or greater than 2), a first suction port (41b) for sucking a working fluid into a suction-side space (55a) of a first fluid m...
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JP4065313B2 |
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JP2008064334A |
To supply sufficient amount of lubricant to an expander, to improve heating efficiency in a cycle as a whole, to miniaturize a device and to reduce a weight of the device.This water heater comprises a refrigerant circuit constituted by s...
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JP2008057875A |
To save a space and to reduce cost by preventing damage of an invertor circuit caused by overheating of an invertor, and dispensing with a refrigerant circuit exclusive for cooling the invertor.This refrigerating cycle device is provided...
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JP4056433B2 |
Saturated or sub-cooled liquid is supplied to the expander of an expressor 20. Starting just prior to the end of the inlet process or just after the completion of the inlet process, high pressure vapor from the expressor 20 compressor di...
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JP4055902B2 |
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JP4053082B2 |
A compressor, a radiator, an expander, and an evaporator are connected in series to define a refrigerating cycle. A bypass circuit that bypasses the expander, an on-off valve disposed in the bypass circuit, and a controller C1 for contro...
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JP2008039237A |
To provide a refrigeration cycle device having a good balance between price and performance by solving such problems that it is necessary to design that the design volume ratio between a compression mechanism and an expansion mechanism i...
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JP2008038642A |
To provide an expander integrated compressor high in operation efficiency in which an expansion mechanism does not become load on a compression mechanism and a refrigeration cycle using the same.The expansion mechanism 4 is provided with...
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JP2008038970A |
To provide a motor integrated magnetic bearing device capable of improving long-term durability of a roller bearing under a load of thrust loading and also capable of enabling the high-speed rotation of a main shaft.The motor integrated ...
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JP2008031845A |
To provide an expander-integrated compressor which acquires a constant high operation efficiency by maximumly recovering power from high pressure working fluid while eliminating a constraint condition of "density ratio=constant" when cou...
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JP2008032234A |
To provide an expander integrated compressor for obtaining consistently high operating efficiency by reducing bypass pipe lines and embodying valve control to maximize power recovery from a high-pressure operating fluid while eliminating...
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JP2008020152A |
To improve recovery efficiency of expansion energy of a refrigerant while maintaining a substantially certain density ratio between an intake refrigerant of a compressor and an intake refrigerant of an expander in a heat pump device conn...
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JP4039024B2 |
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JP4041036B2 |
A method for providing refrigeration to a refrigeration load which enables the use of environmentally friendly refrigerants with lower power consumption than with conventional refrigerants wherein the low side pressure of the circuit exc...
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JP4039105B2 |
To provide an air conditioner for an aircraft capable of effectively using oxygen enriched air from an air separation part, reducing an engine load, performing a fail-safe function, and allowing a proper operation according to a flight c...
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JP4039107B2 |
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JP2008014602A |
To not only to avoid the restriction of a constant density ratio by a bypass flow passage of an expansion device, but also to restrain a refrigerant flowing in the bypass flow passage not contributing to recover power, to the minimum, by...
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JP2008008224A |
To provide a waste heat utilization device for using waste heat in multiple ways in an internal combustion engine for performing the supercharging of intake air and effectively using the waste heat.The waste heat utilization device inclu...
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JP2008002777A |
To provide a refrigeration cycle device securing lubrication of an expander.Pressures in sealed containers of a compressor and the expander are maintained substantially the same as a pressure of a coolant compressed by the compressor, lu...
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JP2008002742A |
To supply a refrigerant of liquid single phase to a use-side circuit 11 in a cooling operation, in a refrigerating device 20 capable of executing the cooling operation in a state that a heat source-side heat exchanger 44 is applied as a ...
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JP2007327696A |
To secure starting of a system by surely operating an expander 30 in starting a device and to surely control rising performance in starting, in a refrigerating device 10 where the expander 30 is not mechanically connected to a compressor...
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JP2007327697A |
To concretely control the load of a power generator 33, in a refrigerating device in which an expander 30 is connected to the power generator 33, and which comprises a mechanism for controlling rotational frequency of the expander 30. In...
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JP4023006B2 |
To provide an air conditioner for an aircraft satisfying the air- conditioning conditions required under the entire operating conditions of the aircraft, capable of operation with the least fuel consumption, and reducing the weight there...
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JP4013981B2 |
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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