| Patents for F25B 9 - Compression machines, plant, or systems, in which the refrigerant is air or other gas of low boiling point (9,862) |
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| 05/07/1991 | US5012651 Heat pump apparatus |
| 05/07/1991 | US5012650 Cryogen thermal storage matrix |
| 05/02/1991 | WO1991005974A1 Ericsson cycle machine |
| 05/02/1991 | EP0424474A1 Method of operating a vapour compression cycle under trans- or supercritical conditions. |
| 05/02/1991 | DE3934545A1 Heat storage unit or heat exchanger - is formed from coiled woven wire strip |
| 04/30/1991 | US5010737 Multi-headed cryopump apparatus |
| 04/30/1991 | US5010736 Cooling system for enclosures |
| 04/24/1991 | EP0423110A1 Cryogenic recondenser with remote cold box |
| 04/23/1991 | US5009072 Refrigerator |
| 04/20/1991 | WO1991005948A1 Magnetoelectric resonance engine |
| 04/20/1991 | CA2044281A1 Magnetoelectric resonance engine |
| 04/17/1991 | EP0422973A1 Refrigeration process and apparatus using a refrigerant mixture |
| 04/11/1991 | DE4030719A1 Air conditioning system for motor vehicle - uses air as working medium |
| 04/10/1991 | CA2027066A1 Refrigeration process and plant using a coolant mix |
| 04/09/1991 | US5006060 Gas resonance device |
| 04/03/1991 | EP0420725A1 Refrigeration production process, the refrigeration cycle used and application in the distillation of air |
| 04/02/1991 | US5003783 Joule-Thomson cooler |
| 03/27/1991 | CN1012195B 气体谐振装置 A gas resonance device |
| 03/21/1991 | WO1991003162A1 Chimeric dna-rna catalytic sequences |
| 03/07/1991 | WO1991003143A1 Special ion emitter tip materials and coatings |
| 03/05/1991 | US4996841 Stirling cycle heat pump for heating and/or cooling systems |
| 02/26/1991 | US4995237 Method for carrying out maintenance work on a refrigerator, device and refrigerator for carrying out the method |
| 02/21/1991 | WO1991002200A2 Device with temperature separating effect |
| 02/19/1991 | US4993230 Cooling apparatus utilizing the Joule-Thomson effect |
| 02/13/1991 | EP0412161A1 Method of cooling an object by means of a cryogenic adsorption refrigerator |
| 02/12/1991 | US4991401 Process and apparatus for obtaining very low temperatures |
| 02/12/1991 | CA1280001C Cryogenic refrigerator with externally adjustable by-pass/relief valve |
| 02/12/1991 | CA1279991C Filtered environmental control system |
| 02/07/1991 | WO1991001471A1 Method and apparatus for controlling a cryogenic refrigeration system |
| 02/07/1991 | DE3925775A1 Vorrichtung mit temperatur-trenneffekt Device with temperature-separating effect |
| 02/06/1991 | EP0411699A1 Stirling cycle heat pump for heating and/or cooling systems |
| 02/06/1991 | EP0411591A2 Cold accumulating material and method of manufacturing the same |
| 02/05/1991 | US4990412 Cryogenic cooling system with precooling stage |
| 02/05/1991 | CA1279857C Joule-thomson apparatus with temperature sensitive annular expansion passageway |
| 01/29/1991 | US4987751 Process to expand the temperature glide of a non-azeotropic working fluid mixture in a vapor compression cycle |
| 01/29/1991 | US4987743 Cryogenic refrigerators |
| 01/29/1991 | CA1279491C Liquid-gas contactor for non-azeotropic mixture refrigerant |
| 01/15/1991 | US4984605 Conducting tube |
| 01/15/1991 | US4984432 Refrigeration system |
| 01/10/1991 | WO1991000483A1 Ecs with advanced air cycle machine |
| 01/10/1991 | WO1991000213A1 Ecs with advanced air cycle machine |
| 12/27/1990 | CA1278260C Method for cooling heat-stressed structural elements of turbo-machines an apparatus for the implementation of the method, and a design for heat-stressed blades |
| 12/25/1990 | US4979368 Miniature integral stirling cryocooler |
| 12/20/1990 | DE3930443A1 Piston ring seal - with garter spring and double angled joint |
| 12/05/1990 | EP0317625A4 Cryogenic refrigerator |
| 12/05/1990 | CN1010709B Turbulence expansion engine |
| 12/02/1990 | WO1990015228A1 Device for removing oxidizable or combustible particles from exhaust gases |
| 12/01/1990 | WO1990015011A1 Method and device for carbonating and cooling a liquid |
| 12/01/1990 | CA2056624A1 Method and device for carbonating and cooling a liquid |
| 11/28/1990 | EP0399813A2 Cryogenic refrigerator |
| 11/27/1990 | US4974062 Housing for opto-electronic components |
| 11/27/1990 | US4973246 Dental apparatus |
| 11/27/1990 | US4972676 Refrigeration cycle apparatus having refrigerant separating system with pressure swing adsorption |
| 11/22/1990 | EP0398156A2 Method and device for precooling the helium vessel of a cryostat |
| 11/20/1990 | CA1276628C Parallel wrapped tube heat exchanger |
| 11/15/1990 | WO1990013735A1 Cold lubricant misting device and method |
| 11/14/1990 | EP0396775A1 Sealing apparatus |
| 11/14/1990 | EP0396624A1 Remote recondenser with intermediate temperature heat sink. |
| 11/13/1990 | US4969807 Gas compressor with buffer spaces |
| 11/06/1990 | USRE33419 Cryostat assembly |
| 11/06/1990 | US4967572 Compressor assembly for supplying helium to a cryo-refrigerator |
| 11/06/1990 | US4967566 Process and apparatus to improve the power factor of compressor-operated (hybrid) refrigerators or heat pumps functioning with solution cycle |
| 11/06/1990 | US4967565 Environmental control system |
| 11/01/1990 | WO1990013170A1 Electromagnetic drive system |
| 11/01/1990 | WO1990012961A1 Stirling cycle machine and compressor for use therein |
| 10/30/1990 | US4966016 Cryopump with multiple refrigerators |
| 10/30/1990 | US4966005 Advanced hybrid air/vapor cycle ECS |
| 10/16/1990 | US4963174 Hybrid vapor cycle/air cycle environmental control system |
| 10/10/1990 | CN1009951B Gas refrigeration method and apparatus |
| 10/09/1990 | US4961323 Automotive air conditioner |
| 10/04/1990 | WO1990011447A1 Device for utilizing heat via conversion into mechanical energy, in particular a cooling device |
| 09/26/1990 | CN2062805U Coaxial pulse tube refrigerating machine with small hole and air vesicle |
| 09/19/1990 | EP0388277A2 Joule-Thomson cooling device |
| 09/08/1990 | CA2011276A1 Pulsation dampening device for super critical fluid expansion engine, hydraulic engine or pump in cryogenic service |
| 09/04/1990 | US4953366 Acoustic cryocooler |
| 09/04/1990 | CA1273499A1 Seal-less cryogenic expander |
| 08/28/1990 | US4951474 Cryo-refrigeration system |
| 08/28/1990 | US4951471 Cryogenic refrigerator |
| 08/23/1990 | DE3904806A1 Heat pump |
| 08/21/1990 | US4949546 Compact heat exchanger for a cryogenic refrigerator |
| 08/14/1990 | US4948360 Gas resonance device |
| 08/09/1990 | WO1990008890A1 Improved sibling cycle piston and valving method |
| 07/31/1990 | CA1272170A1 Apparatus and method for providing relatively dry, oil free compressed instrument air |
| 07/26/1990 | WO1990008294A1 Cryogenic adsorption refrigerator and method of cooling an object thereby |
| 07/17/1990 | CA1271642A1 Cryogenic refrigeration system having an involute laminated stator for its linear drive motor |
| 07/12/1990 | WO1990007683A1 Trans-critical vapour compression cycle device |
| 07/11/1990 | EP0377329A2 Heat pump apparatus |
| 07/11/1990 | CN1043774A Apparatus and method for speed or power control of stirling-type machines |
| 06/20/1990 | EP0373445A2 Joule-Thomson cooling device |
| 06/13/1990 | EP0372029A1 Regenerative cryogenic refrigerator. |
| 06/13/1990 | DE3841321A1 Air-conditioning system for motor vehicles |
| 06/12/1990 | CA1270121A1 Silicone dielectric gel cryogenic detector interface |
| 06/05/1990 | US4930314 Stirling cycle machine |
| 06/05/1990 | CA1269855A1 Helium dilution refrigeration system |
| 05/29/1990 | US4928502 Equipment for storing blood |
| 05/23/1990 | CN1042413A Method and arrangement for enforced heat transmisson between alimentary bodies and gases |
| 05/22/1990 | US4926639 Sibling cycle piston and valving method |
| 05/17/1990 | WO1990005277A1 Method and arrangement for an enforced heat transmission between alimentary bodies and gases |
| 05/17/1990 | WO1990005276A1 Method and arrangement for an enforced heat transmission between bodies and gases |
| 05/17/1990 | WO1990005256A1 Sealing apparatus |