Matches 101 - 150 out of 345 < 1 2 3 4 5 6 7 >


Match Document Document Title
US20130283823 MULTISTAGE PULSE TUBE COOLERS  
A cryocooler may comprise a first stage, a second stage and a phase control device. The first stage may define a first volume. The second stage may define a second volume. The phase control device...
US20120193063 THERMODYNAMIC REGENERATOR  
Various embodiments are directed to a regenerator for use with a regenerative engine. The regenerator may comprise a plurality of regenerator disks. Each of the plurality of regenerator disks may...
US20080276626 Regenerative cryocooler and pulse tube cryocooler  
A regenerative cryocooler, the regenerative cryocooler being connected to a compressor configured to make coolant gas have a high pressure, send the high pressure coolant gas, and absorb coolant...
US20130312427 AIR COMPRESSION SYSTEM AND METHOD  
An air compression system and method for an air separation plant in which air is compressed in a series of compression stages and a temperature swing adsorption unit adsorbs water vapor and carbon...
US20140331689 Stirling engine regenerator  
The invention disclosed a Stirling engine regenerator, including a cylindrical regenerator cover, one end of the regenerator cover is connected with a heater and the other end is connected with a...
US20140290277 CRYOGENIC REFRIGERATOR  
A cryogenic refrigerator includes a compressor which compresses a working gas, a housing which includes a space which the working gas compressed by the compressor flows into and flows from, a...
US20130327065 CRYOGENIC REFRIGERATOR AND DISPLACER  
A cryogenic refrigerator includes a displacer having a flow channel that supplies a refrigerant gas to a regenerator; and a cylinder that accommodates the displacer so as to be movable in an axial...
US20080282708 Cryocooler split flexure suspension system and method  
A cryocooler in which two independently moving flexure systems are split across a single magnetic structure, decreasing package size and increasing resistance to cantilevered mass sag due to...
US20150013349 LOW-TEMPERATURE DEVICE FOR SEPARATING AND PURIFYING GAS BASED ON SMALL-SIZED LOW-TEMPERATURE REFRIGERATING MACHINE  
A low-temperature device for separating and purifying gas based on a small-sized low-temperature refrigerating machine includes a primary, secondary and quaternary heat exchanger, at least one...
US20130014518 Refrigeration Method and Apparatus with a Pulsating Load  
A method for the pulsating load refrigeration of a component of a Tokamak, said method using a refrigeration device subjecting a working fluid such as helium to a working cycle, the Tokamak...
US20140176136 CRYOGEN-FREE COOLING SYSTEM FOR ELECTRON PARAMAGNETIC RESONANCE SPECTROMETER  
In an electron paramagnetic resonance spectrometer, a closed cycle cryocooler is used to cool gaseous helium, which is then circulated around a sample to cool the sample by direct convection....
US20130186109 COUNTER FLOW HEAT EXCHANGER FOR A MINIATURE JOULE-THOMSON CRYOCOOLER  
A counter flow heat exchanger comprising a body formed of stacked, fused, ceramic sheets. The sheets comprising: a bottom sheet, a second sheet, a third sheet, a fourth sheet and a top sheet. The...
US20070261416 Hybrid cryocooler with multiple passive stages  
A multi-stage cryocooler has three or more stages, including an active first stage and passive second and third stages. The active stage may include a Stirling expander, and the passive second and...
US20060260328 Cryogenic biological preservation unit with active cooling and positive atmospheric seal lid  
A cryogenic biological preservation unit and method of operation wherein the atmosphere within the unit is sealed from the outside atmosphere by pressure maintenance provided by varying amounts of...
US20130031915 STIRLING ENGINE DISPLACER DRIVE  
In one embodiment, as cryocooler is provided that includes: a regenerator piston; a drive coupler; and a link flexure having a proximal end coupled by a first pin to the drive coupler and having a...
US20110000226 4-VALVE PULSE TUBE CRYOCOOLER  
A 4-valve pulse tube cryocooler has, on a high-pressure end of a compressor, first and second coolant supply channels respectively connected to high-temperature ends of a regenerator and a pulse...
US20120167598 VACUUM ISOLATED MULTI-WELL ZERO LOSS HELIUM DEWAR  
A multi-well helium Dewar is provided for recirculating coolant about a cryostat probe; the Dewar includes a first well containing a first coolant reservoir, and a second well containing a second...
US20130291565 PULSE TUBE REFRIGERATOR AND REGENERATIVE REFRIGERATOR  
A pulse tube refrigerator includes a first pulse tube; a first regenerator connected to the first pulse tube; a compressor configured to compress the coolant gas; a first supply side valve; a...
US20050166604 Stirling cooler  
Disclosed is a stirling cooler, in which a cylinder is fixedly installed in a case, a flange is protruded perpendicularly from an outer surface of the cylinder in a radial direction of the...
US20120025821 High field NMR apparatus with excess cooling power and integrated helium re-liquification  
A nuclear magnetic resonance (NMR) apparatus (10) comprises a superconducting main field magnet coil system (14) which generates a homogeneous magnetic field of at least 3T, and a gradient coil...
US20050126187 Cryogenic cooling apparatus  
A cold head of a refrigerator is secured to a support stage provided separately from a cryostat so that the support stage supports the load of the cold head. On the other hand, a low-vibration...
US20110000225 DOUBLE INLET TYPE PULSE TUBE REFRIGERATOR  
A double inlet type pulse tube refrigerator includes a regenerator having a high temperature end and a low temperature end; a pulse tube having a high temperature end and a low temperature end...
US20140100114 COOLING ASSEMBLY FOR ELECTRICAL MACHINES AND METHODS OF ASSEMBLING THE SAME  
A cryocooler assembly for cooling a field winding of an electrical machine having an axis of rotation is provided. The assembly includes a cryocooler and a reservoir coupled in flow communication...
US20070089432 Cryostat configuration with cryocooler  
A cryostat configuration for keeping cryogenic fluids in at least one cryocontainer, comprising an outer shell and a neck tube containing a cold head of a cryocooler, wherein the coldest cold...
US20140174102 HEAT-ACTUATED DOUBLE-ACTING TRAVELING-WAVE THERMOACOUSTIC REFRIGERATION SYSTEM  
The present invention discloses a heat-actuated double-acting traveling-wave thermoacoustic refrigeration system, comprising at least three elementary units; each elementary unit comprises a...
US20130296171 COOLING DEVICE FOR A SUPER CONDUCTOR AND SUPER CONDUCTING SYNCHRONOUS MACHINE  
A super conductor is disclosed, in particular a high temperature super conductor of a synchronous machine, including a cooling circuit for a coolant. The liquefied coolant in the cold head...
US20090249797 Thermoacoustic Refrigerators and Engines Comprising Cascading Stirling Thermodynamic Units  
The present invention includes a thermoacoustic assembly and method for improved efficiency. The assembly has a first stage Stirling thermal unit comprising a main ambient heat exchanger, a...
US20070051115 Cryostat configuration with cryocooler and gas gap heat transfer device  
A cryostat configuration for keeping liquid helium comprises an outer jacket (1) surrounding a helium container (2) connected at at least two suspension tubes (3) to the outer jacket (1), and with...
US20100218513 THERMALLY ACTIVATED HIGH EFFICIENCY HEAT PUMP  
A vapor compression cycle system is combined with a Rankine cycle system, with the two systems having a common suction accumulator from which the compressor draws refrigerant vapor for the vapor...
US20070068175 Control system for actively cooled cryogenic biological preservation unit  
A control system for an actively cooled cryogenic biological preservation unit wherein vapor flow into or out of the unit or a proxy thereof is sensed by a flow sensor signaling a controller which...
US20110000227 COMPRESSOR  
To improve the exhaust heat recovery efficiency, a compressor includes a heat exchanger for cooling a gas, coolant, water, or oil heated by the compressor during compressor operation by heat...
US20130305744 CNG DELIVERY SYSTEM WITH CRYOCOOLER AND METHOD OF SUPPLYING PURIFIED CNG  
A fuel gas delivery system is provided. The fuel gas delivery system includes a feed line configured to provide a natural gas stream and a cryocooler fluidly coupled to the feed line. The...
US20090151803 HYBRID SPOOL VALVE FOR MULTI-PORT PULSE TUBE  
The problems of reducing the torque required to turn the valve, eliminating wear dust, and extending the life of the valves in Gifford McMahon (G-M) type multi-port pulse tube refrigerators are...
US20150253043 THERMOACOUSTIC ENERGY CONVERTING ELEMENT PART AND THERMOACOUSTIC ENERGY CONVERTER  
The thermoacoustic energy converting element part is provided with a plurality of through holes extending along a direction to penetrate the thermoacoustic energy converting element part to form...
US20070090606 Low wear piston sleeve  
Provided is a low friction, self-lubricating sleeve for use with a reciprocating piston in the compressor and/or the expander subsystem of a cryogenic cooler or other compressor type system. The...
US20150168027 MINIATURIZED GAS REFRIGERATION DEVICE WITH TWO OR MORE THERMAL REGENERATOR SECTIONS  
The size of a miniature cryocooler operating on the Stirling refrigeration cycle is further reduced by shortening a first thermal regenerator module (R) disposed on a cold side of a thermal...
US20140202174 Closed Cycle 1 K Refrigeration System  
A closed-cycle refrigerator provides cooling to extremely low temperatures, particularly in the range of 0.5 K to 2.0 K. A 4 K pulse-tube cryocooler cold head or G-M cryocooler cold head liquefies...
US20050172644 Loop-type thermosiphon and stirling refrigerator  
A loop-type thermosiphon capable of stable operation regardless of fluctuation of heat load and a Stirling refrigerator using the same are provided. The loop-type thermosiphon transferring heat...
US20140130520 APPARATUS AND METHODS FOR IMPROVING VIBRATION ISOLATION, THERMAL DAMPENING, AND OPTICAL ACCESS IN CRYOGENIC REFRIGERATORS  
A cryogenic apparatus is provided having a nested thermally insulating structure, thermal links, a vacuum shroud, and a cryo-cooler. The nested thermally insulated structure holds a sample to be...
US20140202173 CRYOGENIC REFRIGERATOR  
A cryogenic refrigerator includes a compressor that compresses a working gas; a displacer to which the working gas compressed by the compressor is supplied; a drive mechanism that includes a drive...
US20120000208 LONG LIFE SEAL AND ALIGNMENT SYSTEM FOR SMALL CRYOCOOLERS  
In one embodiment, a compressor includes a moving assembly configured to compress a gas within a compression volume; a guide rod connected to the moving assembly which reciprocates axially with...
US20060225437 Ultracryostat and frigidity supplying apparatus  
A ultracryostat is provided with a frigidity supplying member to supply frigidity to the ultracryostat which uses cryogen such as liquid helium, wherein the frigidity supplying member comprises a...
US20130021032 CRYOGEN-FREE COOLING SYSTEM FOR ELECTRON PARAMAGNETIC RESONANCE SYSTEM  
In an electron paramagnetic resonance spectrometer, a closed cycle cryocooler is used to cool gaseous helium, which is then circulated around a sample to cool the sample by direct convection....
US20110100023 VARIABLE PHASE SHIFT DEVICES FOR PULSE TUBE COOLERS  
Various embodiments are directed to pulse tube coolers having flow resistance devices that are variable within the thermodynamic cycle of the pulse tube. An example pulse tube may comprise a...
US20130081410 REFRIGERATION DEVICE, HYDROGENATION DEVICE FOR NITROGEN, AND LEAKED GAS REMOVING METHOD  
A refrigeration device of an embodiment includes: a heat-insulating vacuum chamber; a refrigerator cryogenic unit that is provided in the heat-insulating vacuum chamber and is cooled to a lower...
US20070268944 Gas purification in an excimer laser using a stirling cycle cooler  
An excimer laser includes a laser-gas cleaning apparatus. The gas cleaning apparatus includes a cold-trap supplemented by a heat-exchanger. The cold-trap is cooled by a twin-compressor,...
US20090158752 VARIABLE POWER CRYOGENIC REFRIGERATOR  
A compressor (1) including a compressor mechanism; an input line (12) for providing gas to the compressor; and an output line (14) for providing compressed gas from the compressor. The compressor...
US20140041397 CRYOGENIC REFRIGERATOR  
A cryogenic refrigerator includes a displacer that is reciprocably mounted within a cylinder; a spool valve that is connected to the compressor and performs switching between an intake mode where...
US20140202175 SINGLE-STAGE DOUBLE-ACTING TRAVELING-WAVE THERMOACOUSTIC SYSTEM  
The present invention provides a single-stage double-acting traveling-wave thermoacoustic system, comprising three elementary units; each unit comprises a linear motor and a thermoacoustic...
US20150143820 CRYOSTAT  
A cryostat (10) is disclosed having a multistage cryocooler (20) with at least first and final cooling stages (22,32), and first and final stage heat exchangers (24,34) thermally coupled to the...

Matches 101 - 150 out of 345 < 1 2 3 4 5 6 7 >