|
Match
|
Document |
Document Title |
|
|
5675974 |
Heat exchanger
A heat exchanger wherein the media that take part in the heat transfer are separated from one another. To provide a compact heat exchanger that has a high efficiency, the heat exchanger is formed...
|
|
|
5673561 |
Thermoacoustic refrigerator
A thermoacoustic device having a thermal stack made from a piece of porous material which provides a desirable ratio of thermoacoustic area to viscous area, which has a low resistance to flow,...
|
|
|
5664421 |
Heat pump type air conditioner using circulating fluid branching passage
A heat pump type air conditioner having a heat gas engine having a radiator and a cooler, an outdoor heat exchanger provided in an outdoor unit and an indoor heat exchanger provided in an indoor...
|
|
|
5655376 |
Combination coolant pump/dynamic balancer for stirling refrigerators
A self-cooling Stirling cycle cooler (1). The cooler (1) includes a conduit (20) for transporting thermal energy from a first location to a second location. The conduit is a closed loop having...
|
|
|
5653112 |
Cryocooler system with welded cold tip
A cryocooler system (20) includes a heat sink (24), such as a Stirling cycle heat engine having a cold cylinder sleeve (26) and a cold gas pocket region (32) within the cold cylinder sleeve (26)....
|
|
|
5647219 |
Cooling system using a pulse-tube expander
A cooling system utilizes a pulse-tube expander having a hollow pulse tube and three hollow regenerator tubes that lie parallel to and laterally displaced from the pulse tube, and are arranged in...
|
|
|
5647217 |
Stirling cycle cryogenic cooler
A displacer assembly for use with a thermal regenerative machine has a housing configured to receive a displacer therein. The displacer has a drive area formed by a rod portion of the displacer...
|
|
|
5647216 |
High-power thermoacoustic refrigerator
A high-power thermoacoustic refrigerator including a half-wave length resonator, first and second drivers located in housings at first and second ends of said resonator, two pusher cones, a...
|
|
|
5647218 |
Cooling system having plural cooling stages in which refrigerate-filled chamber type refrigerators are used
A cooling apparatus comprises a main refrigerator having a refrigerant-filled chamber, a sub-refrigerator connected parallel to the main refrigerator and having a refrigerant-filled chamber, switch...
|
|
|
5642623 |
Gas cycle refrigerator
A multi-staged gas cycle refrigerator having a first stage regeneration part including a compression piston, a second stage regeneration part including a double inlet pulse tube and a buffer is...
|
|
|
5642622 |
Refrigerator with interior mounted heat pump
A refrigerator having a heat pump mounted within the insulated portion of the refrigerator cabinet which is cooled by the heat pump. The heat pump is a Stirling cycle or Rankine cycle heat pump, is...
|
|
|
5638684 |
Stirling engine with injection of heat transfer medium
This invention relates to a Stirling engine as a refrigerating machine or heat pump having improved heat transfer to the working gas or improved heat transfer from the working gas of the Stirling...
|
|
|
5638685 |
Superconducting magnet and regenerative refrigerator for the magnet
Superconducting magnet and regenerative refrigerator can be reduced in size of the apparatus and is capable of reducing the evaporating amount of liquid helium. A coil portion second thermal shield...
|
|
|
5632149 |
Heat exchanger for a gas compression/expansion apparatus and a method of manufacturing thereof
An improved heat exchanger for use in a gas compression/expansion apparatus. The heat exchanger comprises: a tube connected with a compression/expansion space of a compression/expansion cylinder of...
|
|
|
5615556 |
Free-piston vuilleumier heat pump
A free-piston Vuilleumier heat pump in which displacers having a spring-operated resonance system, controls the heating energy and cooling energy outputs by controlling strokes of a hot displacer...
|
|
|
5613365 |
Concentric pulse tube expander
A pulse tube cooler comprising pulse tube, a regenerator concentrically disposed around the pulse tube, and a thermal insulator concentrically disposed between the pulse tube and the regenerator....
|
|
|
5609034 |
Cooling system
A cooling system includes a cold-accumulating refrigerator, and a cooling circuit. The cold-accumulating refrigerator includes a cold accumulator. The cooling circuit includes a heat exchanger. The...
|
|
|
5596875 |
Split stirling cycle cryogenic cooler with spring-assisted expander
A split Stirling cycle type of cryogenic cooler (10) includes a compressor portion (12) and an expander portion (14). The expander portion (14) is of the "cold finger" type, and is configured to...
|
|
|
5593517 |
Regenerating material and refrigerator using the same
The regenerating material according to the present invention comprises two alloy phases which differ in a content of rare earth elements. Of these alloy phases, a dominant phase in the regenerating...
|
|
|
5590534 |
Stirling cooler
The invention relates to a Stirling cooler, comprising a compressor for generating a time-varying pressure in a gaseous medium, a cooling element provided with at least a displacer and at least a...
|
|
|
5590533 |
Refrigerator having regenerator
A refrigerator with a regenerator is provided which is supported by a holder. The refrigerator has a cylinder having an inner circumferential surface matching a circular tube shape, a displacer...
|
|
|
5582013 |
Electromechanical cryocooler
An electromechanical cryocooler is disclosed for substantially reducing vibrations caused by the cooler. The direction of the force of the vibrations is measured and a counterforce sufficient to...
|
|
|
5579399 |
Acoustic resonator having mode-alignment-cancelled harmonics
An acoustic resonator includes a chamber which contains a fluid. The chamber has a geometry which produces self-destructive interference of at least one harmonic in the fluid to avoid shock wave...
|
|
|
5551244 |
Hybrid thermoelectric/Joule-Thomson cryostat for cooling detectors
A hybrid thermoelectric/Joule-Thomson cryostat with a finite cryogenic gas supply is configured to greatly increase the cold operating time of a infrared detector array. A Joule-Thomson cryostat is...
|
|
|
5542254 |
Cryogenic cooler
An improved cryogenic cooler 100 includes a flange 106 with an elongated pressure vessel 120 extending therefrom. The pressure vessel 120 is connected to the flange 106 at a proximal end thereof....
|
|
|
5537826 |
Erbium-based magnetic refrigerant (regenerator) for passive cryocooler
A two stage Gifford-McMahon cryocooler having a low temperature stage for reaching approximately 10K, wherein the low temperature stage includes a passive magnetic heat regenerator selected from...
|
|
|
5535593 |
Apparatus and method for temperature control of a cryocooler by adjusting the compressor piston stroke amplitude
A temperature control apparatus and method for active control of a Stirling-cycle cryocooler cold finger tip temperature, by adjusting the cryocooler compressor piston stroke amplitude. In a...
|
|
|
5531074 |
Electronic device freezed by intermittently driven refrigerator
A detecting device having: a compressor driven by an electric signal for supplying and recovering He gas at an operation cycle of 10 Hz to 400 Hz; a He gas refrigerator for transferring the He gas...
|
|
|
5522223 |
Pulse tube refrigerator
A low-temperature end of a pulse tube (1) and a low-temperature end of a cold accumulator (2) are communicated with each other through an endothermic connection passage (3), so that refrigerant gas...
|
|
|
5522222 |
Cooling and heating system utilizing a vuilleumier pump
A cooling and heating system includes a hot water tank having a hot water heat exchanger, an indoor heat exchanging assembly including first and second indoor heat exchangers, an outdoor heat...
|
|
|
5519999 |
Flow turning cryogenic heat exchanger
A cryogenic heat exchanger, such as a pulse tube cryogenic heat exchanger, is provided wherein the chilled heat transfer connection point can be conveniently disposed at an "apex." The heat...
|
|
|
5515684 |
Resonant macrosonic synthesis
An acoustic resonator includes a chamber containing a fluid. The chamber has anharmonic resonant modes and provides boundary conditions which predetermine the harmonic phases and amplitudes needed...
|
|
|
5513498 |
Cryogenic cooling system
A cryogenic cooling system includes a cryocooler coldhead having a cold stage. A gas circulator has a low pressure input orifice and a high pressure output orifice, and a valve has a primary port...
|
|
|
5502968 |
Free piston stirling machine having a controllably switchable work transmitting linkage between displacer and piston
Free piston Stirling coolers and engines are improved by a variable power transmitting linkage connecting the displacer to the piston and coupling more power from the displacer to the piston while...
|
|
|
5492313 |
Tangential linear flexure bearing
An improved tangential linear flexure bearing for reciprocating machines is disclosed having improved reliability for long life, the flexure bearing being an integrated device comprising a...
|
|
|
5488830 |
Orifice pulse tube with reservoir within compressor
A cryogenic cooler of the pulse tube type is provided wherein the reservoir is disposed within the compressor housing. The invention provides the high efficiencies associated with orifice pulse...
|
|
|
5483802 |
Vuilleumier heat pump
In a Vuilleumier heat pump, hot and cold displacers are supported by coil springs in respective buffer chambers. Further, there are respectively provided forced vibration systems of the hot and...
|
|
|
5482919 |
Superconducting rotor
The superconducting rotor includes at least one field coil made of a superconductor material having a given superconducting transition temperature. A cryocooler system is mounted for rotation with...
|
|
|
5481878 |
Pulse tube refrigerator
A high pressure valve and low pressure valve are positioned at a hot end of the pulse tube and two direction valves are positioned respectively between the high pressure reservoir, the low pressure...
|
|
|
5477686 |
Tuned split-Stirling cryorefrigerator
A split-Stirling cryorefrigerator including a cylinder containing a movable displacer containing regenerator material and having an attached movable rod with a free end located in a housing...
|
|
|
5477688 |
Automotive air conditioning apparatus
An automotive air conditioning apparatus includes a Stirling refrigerator. In this refrigerator, many fins absorb heat from air in a passenger room, and a water jacket is connected to the cooling...
|
|
|
5477687 |
Pulley driven stirling cycle automative air conditioner system
An automotive air conditioning system utilizes environmentally safe gases as the working fluid for a Stirling cycle refrigeration unit. The Stirling cycle refrigeration unit includes a compressor...
|
|
|
5471841 |
Low-temperature regenerative type refrigerator
Disclosed is a low-temperature regenerative type refrigerator installed in a low temperature environment, in which a cooling water flow rate controller for adjusting the flow rate of cooling water...
|
|
|
5469709 |
Regenerator for Vuilleumier heat pump
A regenerator for a Vuilleumier heat pump comprises a hollow body having an internal surface and a heat absorbing/emitting member housed within the body. In order to prevent leakage of fluid...
|
|
|
5467600 |
Naturally circulated thermal cycling system with environmentally powered engine
A thermal cycling system comprising an evaporator and a radiator and two separate conduits extending between the evaporator and the radiator to form a closed cycle. The evaporator is arranged to...
|
|
|
5465580 |
Cooling and heating water circulation apparatus of Vuilleumier heat pump
A Vuilleumier heat pump comprises a high temperature section and a low temperature section. The high temperature section includes a high temperature chamber heated by a combustion unit, and a high...
|
|
|
5465579 |
Gas compression/expansion apparatus
An apparatus for compressing/expanding a working gas (compression/expansion apparatus), including: a cylinder; a piston for compressing/expanding said working gas in a working space (front space)...
|
|
|
5463868 |
Heat pumping method as well as heat pump for generating cryogenic temperatures
In order to provide a heat pumping method, in particular for generating cryogenic temperatures, which is efficient and less susceptible to malfunctions than known methods, the following, cyclically...
|
|
|
5461869 |
Vuilleumier heat pump device
A vuilleumier heat pump device comprises: a hot-side heat pump (2) in which a hot side displacer (22) is housed in a hot side cylinder (21); and a cold-side heat pump (3) in which a cold side...
|
|
|
5456082 |
Pin stack array for thermoacoustic energy conversion
A thermoacoustic stack for connecting two heat exchangers in a thermoacoustic energy converter provides a convex fluid-solid interface in a plane perpendicular to an axis for acoustic oscillation...
|