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WO/1998/057105A1 |
A throttle device provides a large number of small flow channels generally in parallel rather than a single flow path. The throttling device, a porous cartridge (14) within a tube (11, 12), may be porous metal, packed ferrous spheres or ...
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WO/1998/054524A1 |
The invention relates to a method for liquefying a flow rich in hydrocarbons, specially a natural gas flow, by indirect heat exchange with the coolant mixture of a coolant mixture circuit, wherein the coolant mixture is compressed in at ...
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WO/1998/049506A1 |
A low temperature storage cabinet whose freezing compartment maintained at an ultra-low temperature by a binary refrigerating apparatus is improved in thermal insulation effect. A vertical ultra-low temperature freezer (1) is constituted...
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WO/1998/046148A1 |
A cryoprobe instrument (10) for endoscopic use has been provided that permits the delivery of liquid or gaseous cryogen in the form of a spray. In an embodiment, the cryoprobe instrument (10) includes an elongated, flexible tube (12) hav...
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WO/1998/046970A2 |
Disclosed is a tubular vortical device, comprising a vortex generator (1) supplied with a working medium by means of a supply pipe (12). A central cold flow is drawn from one side of a vortex formation chamber (3) through a diaphragm ori...
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WO/1998/041803A1 |
A coolant circuit is formed by connecting an outdoor unit (5) and an indoor unit (6) by communication piping (18) including a gas pipe (16) and a liquid pipe (17). A substitute coolant R-410A is used as coolant circulating in the coolant...
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WO/1998/038264A1 |
A vapor compression refrigerator provided with a hydraulic medium comprising a coolant comprising HFC 32 as the indispensable component and at least one refrigerator oil selected from ether-base and ester-base refrigerator oils, wherein ...
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WO/1998/035365A1 |
The current supply device (2) comprises an electrical line extending between a high-temperature level (RT) and a lower temperature level (TT), to which a cooled electrical device, specially a supraconducting device, is connected on the l...
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WO/1998/034025A1 |
The present invention relates to a heating installation with a Stirling engine and Stirling-type heat pump integrated within a single pressure vessel. Two hot chambers and two cold chambers, as well as a working chamber in which a piston...
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WO/1998/030651A1 |
A method for filling a mixed refrigerant, characterized in that, in using as the refrigerant a nonazeotropic mixture comprising 23 to 27 % by weight of difluoromethane, 13 to 17 % by weight of pentafluoroethane, and 58 to 62 % by weight ...
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WO/1998/030847A1 |
A refrigeration system having a closed circulating circuit filled with a refrigerant which on evaporation expands and gives rise to an increase in pressure in the whole of or parts of the circulating circuit, and which at ambient tempera...
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WO/1998/029700A1 |
A method for detecting the absence of a pressure differential across a cryogenic refrigerator (12) includes the following steps. At least one measurement of load in the refrigerator (12) is taken during both a warmstroke and a coldstroke...
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WO/1998/029699A1 |
Other parts than an indoor unit (B) and an existing piping (21b) are removed from an existing refrigeration apparatus which uses R22 while the indoor unit (B) and the existing piping (21b) are left. A refrigerant-refrigerant heat exchang...
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WO/1998/028580A1 |
An air cycle air conditioning system (10) comprises a first air source (18) for supplying cooling air and a second air source (16) for supplying high temperature system air. The system (10) further includes a device (14) for transferring...
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WO/1998/028585A1 |
Irregularly shaped particles (307) of a magnetic regenerator (129) are coated or bound together by applying a dilute solution of a binding agent (111) and removing excess binding agent (111) with a gas flow.
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WO/1998/025008A1 |
An improved high-efficiency dual shell Stirling engine is disclosed. The improvements to the engine include: (a) enclosing the high-pressure/high-temperature engine parts within a dual shell (24, 34) filled with an incompressible insulat...
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WO/1998/022764A1 |
A refrigeration system comprises a mixing tank (1; 32; 37) for a slurry of solid particles in a liquid, said mixing tank having first and second inlets and an outlet. A sublimator (3) has a bottom inlet, a top outlet and several internal...
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WO/1998/020288A1 |
Fluidic devices, including constant-rotation double diodes (168) and constant-rotation double vortex tubes (168), are disclosed with which to construct pulse tube refrigerators (701) having diode loops (788), constant-rotation double dio...
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WO/1998/018880A1 |
A cold accumulation material (1) for an ultra-low temperature is produced by charging magnetic particles (4) containing rare earth elements into hole portions (3) of a porous support (2). The porous support (2) is preferably produced fro...
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WO/1998/017167A2 |
A miniature mixed gas refrigeration system and method is disclosed. A selected gas mixture is compressed to less than 420 psia for safety reasons. The compressed gas mixture is passed through a primary heat exchanger (140) and a primary/...
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WO/1998/012486A1 |
An air conditioner constituting a refrigerating cycle by connecting a compressor, a heat exchanger and an expansion valve in sequence, the air conditioner comprising an indoor unit (14c) allowing a first outdoor unit (15a) using a first ...
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WO/1998/012468A1 |
A method and device is disclosed for removing residual oil and other contaminants from the refrigerant stream flowing to low-temperature stages of a cryogenic refrigerator. A stream of vapor and liquid refrigerant is injected into a cycl...
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WO/1998/011394A1 |
A gas-pressure driven type cryogenic refrigerator in which a cylinder (2) is partitioned into a lower pressure chamber (20), an upper pressure chamber and expansion chambers (30, 31) by a slack piston (17) and a displacer (22) connected ...
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WO/1998/006983A1 |
An air conditioner which comprises a refrigerant circuit (1), in which a refrigerant flows through a compressor (2), a condenser (3), a heat exchanger (10) for supercooling, a first expansion mechanism (4) and an evaporator (5) in this o...
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WO/1998/006984A1 |
A thermoacoustic device (1) having a thermal stack (6) made from a piece of porous material which provides a desirable ratio of the thermoacoustic area to viscous area, which has a low resistance to flow, which minimizes acoustic streami...
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WO/1998/006985A1 |
A miniatured mixed gas refrigeration system and method of operation are disclosed, having a coaxial catheter (18) with an inner high pressure supply lumen and an outer low pressure return lumen. An optimum gas mixture is formulated from ...
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WO/1998/004221A1 |
This invention is cryo-coolers (10) for use in cryosurgery, and other applications comprising finned tube helical heat exchanger (20), and a flow directing sheath (30) covering portions of the heat exchanger coil and isolating portions o...
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WO/1998/002694A1 |
A make-up air handler (200) controls temperature, humidity and/or cleanliness of air. The make-up air handler (200) includes a direct expansion chiller system (208). The direct expansion chiller (208) may be integral to the make-up air h...
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WO/1998/000677A1 |
An orifice pulse tube refrigerator (PTR) having a pulse tube (30) and a reservoir (28) with a compliance value C is provided with a variable acoustic impedance connecting the pulse tube (10) and the reservoir (28). The variable acoustic ...
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WO/1997/048524A1 |
The invention concerns a method of polishing or smoothing paint surfaces, the method calling for the paint surface to be cooled by a cold gas. The cold gas is produced by splitting a gas stream into a cold stream and a warm stream by mea...
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WO/1997/046304A1 |
The description relates to a process for drying damp gas, especially natural gas, and a corresponding device. The damp gas is subjected to a treatment process in which it is first adiabatically expanded and then set into turbulent flow i...
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WO/1997/039293A1 |
A precooled vapor-liquid refrigeration cycle includes a basic vapor-liquid cycle (24) and an auxiliary regenerative vapor-liquid cycle (26) having a heat exchange relationship (18') between them. The basic cycle (24) includes a compresso...
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WO/1997/037174A1 |
The invention relates to a multistage low-temperature refrigeration machine with a first stage in the form of a displacer refrigerator (1) as well as at least one second stage in the form of a pulse tube refrigerator (25); in order to su...
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WO/1997/033671A1 |
A Group I gas cryopumping system includes a compressor throttle cycle refrigerator (10) using mixed refrigerants. Cold refrigerant flows through a cryopumping surface (44) located in a vacuum chamber, whereon vapor freezes. The refrigera...
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WO/1997/031227A1 |
A final layer (33c) that becomes lower than 10K in a second displacer (33) is filled with balls (34) of HoCu2 having a higher specific heat than Er3Ni. An intermediate layer (33d) of 10 to 15K is filled with balls (35) of Er3Ni, Er3Co or...
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WO/1997/031226A1 |
A cryogenic refrigerant comprising magnetic particles, less than 1 wt.% of which may be destroyed after 1 x 106 cycles of simple harmonic motion at a maximum acceleration of 300 m/s2. Such a cryogenic refrigerant has excellent resistance...
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WO/1997/031228A1 |
The leakage of the coolant through a sealing member at ultra-low temperatures is minimized. The sealing member (32) is made of an unsaturated polyester PTFE whose filling ratio of unsaturated polyester is 20 % - 35 %. The end portion (35...
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WO/1997/029162A1 |
A refrigerant mixture which scarcely effects the ozonosphere in the stratosphere, is less likely to cause global warming, and can be used as such together with conventional compressor lubricating oils other than ester oil in a convention...
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WO/1997/027437A1 |
The description relates to a compressor refrigerating plant (10) with a compressor (12), a gas cooler (14), an expansion device (16) and an evaporator (18) and possibly or preferably an intermediate heat exchanger (28) interconnected in ...
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WO/1997/027072A1 |
The description relates to a roof-mounted air-conditioning unit (10) for a road vehicle, with a compressor (12), a condenser or gas cooler (14), an expansion device (18) and an evaporator (20), in which at least the evaporator (20) or ga...
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WO/1997/026489A1 |
A vortex tube cooling system (10) is presented. The cooling system contains one or more vortex tubes (10) connected to a supply of compressed gas (50), the vortex tubes (10) providing a stream of cold gas which cools product as it emerge...
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WO/1997/022839A1 |
The invention relates to a low-temperature refrigerator (1) for producing temperatures in a defined low-temperature range, with a cold head (3) which is fitted with a regenerator (7) and in which a thermodynamic circulation process (rege...
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WO/1997/019302A1 |
Mixed refrigerants provide refrigeration at cryogenic temperatures with throttling cycles operating with a one-stage compressor. The refrigerants include noncondensable gases such as helium, neon, or hydrogen to increase the overall cool...
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WO/1997/017585A1 |
Heat transfer apparatus comprises a refrigeration assembly having a low pressure region and a high pressure region. The apparatus may also include a power generation assembly connected to the refrigeration assembly between the low and hi...
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WO/1997/017536A1 |
An apparatus and method for cooling or heating fluids, as fuel in a fuel system of an automotive vehicle. Compressed gas is delivered to a vortex tube or air amplifier (14) so that the gas rapidly expands and cools, thereby cooling a fir...
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WO/1997/014762A1 |
A method and apparatus are provided for using certain hydrofluoroethers (HFEs) as low temperature heat transfer media in secondary loop refrigeration systems. These materials exhibit a low, somewhat linear Temperature Difference Factor o...
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WO/1997/014497A1 |
The invention is a microcomponent chemical process assembly wherein macroscale unit processes are performed by microscale components. The sheet architecture may be a single laminate with a plurality of separate microcomponent sections or...
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WO/1997/013956A1 |
A microminiature Stirling cycle engine or cooler is formed utilizing semiconductor, planar processing techniques. Such a Stirling cycle thermomechanical transducer has silicon end plates (14, 22) and an intermediate regenerator (50). The...
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WO/1997/014005A1 |
A miniature mixed gas refrigeration system is disclosed, having a coaxial catheter (18) with an inner high pressure supply lumen (24) and an outer low pressure return lumen (22). The gas mixture is pressurized by a compressor (12) to a p...
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WO/1997/010469A1 |
The system (2) for indirectly cooling a device (10) in a vacuum housing (8), especially a superconducting device, contains at least one refrigerating machine component (4) consisting of sections (4a and 4b) on the ambient and low tempera...
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