| Patents for F28F 1 - Tubular elements; Assemblies of tubular elements (16,334) |
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| 09/12/1991 | DE4104698A1 Heat exchanger with tubes with helical fins - which can be screwed into holes with radial slits |
| 09/11/1991 | EP0446183A1 Improved thermal efficiency radiator for bath rooms and the like |
| 09/11/1991 | EP0445391A1 Flat heat exchange element |
| 09/11/1991 | EP0445203A1 Packing in or for a vessel. |
| 09/10/1991 | US5046556 Surface enlarging elements for heat-exchanger tubes |
| 09/06/1991 | WO1991014139A1 Device for indirectly heating fluids |
| 09/06/1991 | CA2077675A1 Device for indirectly heating fluids |
| 09/05/1991 | WO1991013309A1 Package of plates for tube-plate heat exchanger with diffuser-confuser channels and a rotor die for making the plates of said package |
| 09/03/1991 | US5044545 Oil cooler and process for manufacturing the same |
| 08/27/1991 | US5042576 Louvered fin heat exchanger |
| 08/27/1991 | US5042574 Aluminum clad aluminum fin structure brazed to partition of iron aluminum intermetallic; corrosion resistance |
| 08/27/1991 | US5042565 Fiber reinforced composite leading edge heat exchanger and method for producing same |
| 08/21/1991 | CN2083280U Shaped bimetal integral finned tube |
| 08/20/1991 | US5040596 Heat exchanger core |
| 08/20/1991 | US5040405 Tube expander |
| 08/20/1991 | CA1287831C Delta wing and ramp wing enhanced plate fin |
| 08/14/1991 | CN2082633U Black liquid evaporating pipe effect |
| 08/08/1991 | WO1991011666A1 A device in thermoelectric heaters/coolers |
| 08/06/1991 | US5036912 Heat exchanger |
| 08/06/1991 | US5036910 Combination radiator and condenser apparatus for motor vehicle |
| 08/06/1991 | US5036909 Refrigeration |
| 08/06/1991 | US5036693 Integral finned tubes and a method of manufacturing same |
| 08/06/1991 | CA1287344C Elliptical tube coil assembly for evaporative heat exchanger |
| 07/31/1991 | EP0438850A1 Process of using an improved flue in a titanium dioxide process |
| 07/31/1991 | CN2081963U Coiled pipe type radiator and cooler and coiling machine |
| 07/30/1991 | US5035282 Heat exchanger made of aluminum and surface treating method therefor |
| 07/30/1991 | US5035052 Method of assembling a heat exchanger including a method of determining values of parameters in a heat exchanger, and determining whether the efficiency of the heat exchanger is acceptable |
| 07/24/1991 | EP0437768A1 Leak-safe hydrogen/air heat exchanger |
| 07/23/1991 | US5033544 Looped fin heat exchanger and method for making same |
| 07/23/1991 | US5033540 Consolidated duplex heat exchanger |
| 07/17/1991 | CN2081078U Heat transfer pipe assembly for ceramic heat exchanger |
| 07/17/1991 | CN1053119A Heat transmitting tubes and plates reinforced with metal mesh at both inner and outer surfaces |
| 07/16/1991 | US5032076 Metal mold with extended heat transfer surface |
| 07/16/1991 | US5031694 Heat exchange device and method of manufacture therefor |
| 07/10/1991 | EP0314748B1 Heat-exchanger reactor |
| 07/09/1991 | CA1285781C Cryogenic recondenser with remote cold box |
| 07/03/1991 | EP0434703A1 Surface enlarging elements for heat-exchanger tubes. |
| 06/27/1991 | DE4024004C1 Method of forming joint between pipe and heater - has heater body lowered onto aligned pipe to engage against flange on extrusion |
| 06/26/1991 | CN1012994B Heat-transfer tubes with grooved inner surface |
| 06/26/1991 | CN1012993B Heat-exchanging tube |
| 06/25/1991 | US5025855 Condenser for use in a car cooling system |
| 06/20/1991 | DE4033537A1 Heat exchanger for gas appliance - consists of long extruded profiled tube |
| 06/12/1991 | EP0431917A1 Consolidated duplex heat exchanger |
| 06/12/1991 | CN2078864U Asisting core of movable fastener for radiator |
| 06/12/1991 | CN2078863U Horizontal volumetric heat-exchanger with turbulent helical |
| 06/11/1991 | US5022149 Method and apparatus for making a looped fin heat exchanger |
| 06/05/1991 | EP0430852A1 Embossed vortex generator enhanced plate fin |
| 06/05/1991 | EP0430074A1 Heat transmission duct particularly for heating systems embedded in a hardened transmission medium |
| 06/04/1991 | US5020587 Fully floating tube bundle |
| 05/29/1991 | EP0428908A1 Heat transfer pipe and method of making the same |
| 05/28/1991 | US5018959 Device for producing a grate construction and a grate construction |
| 05/22/1991 | CN2077536U Winding unit for spiral fin of heat exchanger |
| 05/14/1991 | US5014776 Heat emitting unit in form of a heater or cooler |
| 05/14/1991 | US5014771 Heat exchanger core reinforcement |
| 05/14/1991 | CA1284067C Apparatus to reduce or eliminate fluid bed tube erosion |
| 05/01/1991 | CN2076224U Shell-and-tube heat exchanger with turbulent helical |
| 04/30/1991 | US5010643 High performance heat transfer tube for heat exchanger |
| 04/30/1991 | CA1283650C Undulated heat exchanger fin |
| 04/24/1991 | EP0423500A2 Method of fabricating a flat condenser for a refrigeration machine, in particular for a household refrigerator, and the flat condenser thereof |
| 04/24/1991 | EP0423110A1 Cryogenic recondenser with remote cold box |
| 04/24/1991 | EP0326605B1 Heat-transfer wall composed of two plate-like parts |
| 04/23/1991 | US5009263 Heat-exchanger utilizing pressure differential |
| 04/17/1991 | CN2075331U Dual hole horizontal volune type heat-exchange apparatus having turbulent spiral |
| 04/17/1991 | CA2027716A1 Process for the production of a plate condenser for a refrigerating machine, especially for a household refrigerator, as well as special plate condensers produced according to theproces |
| 04/10/1991 | EP0258253B1 Heat exchanger |
| 04/03/1991 | CN2074442U Vertical volumetric heat exchanger with turbulent helical |
| 04/03/1991 | CN1012281B 热交换器 Heat exchanger |
| 03/20/1991 | EP0417894A2 Tube and fin assembly for heat exchangers in power plants |
| 03/20/1991 | CN2073575U Aluminium flat conduit for heat-exhange |
| 03/19/1991 | US5000258 Fin-tube heat exchanger |
| 03/19/1991 | US5000257 Heat exchanger having a radiator and a condenser |
| 03/12/1991 | US4998580 Condenser with small hydraulic diameter flow path |
| 03/06/1991 | CN1049715A Aluminium heat exchanging material used in heat exchanger |
| 03/05/1991 | US4997036 Heat exchanger tube |
| 03/05/1991 | US4996950 Double pipes for mixed boilers, to the methods of manufacturing such pipes and to the corresponding boilers |
| 02/27/1991 | CN2072209U Pipe bundle type heat-exchanger |
| 02/26/1991 | US4996029 For synthesis or decomposition between solid and gas; efficiency |
| 02/26/1991 | US4995450 For transferring heat from a heat sink |
| 02/26/1991 | US4995245 Evaporator for ice maker |
| 02/26/1991 | CA1280744C Air - to - air heat exchanger |
| 02/19/1991 | US4993485 Easily disassembled heat exchanger of high efficiency |
| 02/19/1991 | US4993482 Coiled spring heat transfer element |
| 02/19/1991 | CA1280499C Heat exchangers and electrical apparatus having heat exchangers |
| 01/30/1991 | EP0410247A2 Heat exchanger comprising a finned tube |
| 01/23/1991 | EP0409130A1 Aluminum heat exchanger and method of manufacturing same |
| 01/22/1991 | US4986223 Internal combustion engine injection superheated steam |
| 01/17/1991 | DE4021250A1 Heat exchanger tube with steel core - has cast-iron fins cast in situ around core to make composite tube |
| 01/16/1991 | CN1048592A 热交换器 Heat exchanger |
| 01/15/1991 | US4984626 Embossed vortex generator enhanced plate fin |
| 01/08/1991 | US4982784 Composite heat exchanger tube |
| 01/08/1991 | US4982579 Evaporator |
| 01/02/1991 | CN1011066B Heat transfering tube for vaporization and condensation |
| 01/02/1991 | CA1278565C Segmented fin heat exchanger core |
| 01/02/1991 | CA1278504C Dual-zone boiling process |
| 01/01/1991 | US4981526 Evaporation of acrylic binder |
| 12/20/1990 | DE3919515A1 Radiator for central heating system - is made from light alloy extrusion, containing several tubes |
| 12/20/1990 | DE3918455A1 Coolant liquefier for car air conditioning |
| 12/19/1990 | CN1010885B 热交换器 Heat exchanger |
| 12/18/1990 | US4977955 Heat-transfer wall composed of two plate-like parts |
| 12/18/1990 | CA1277976C Lanced sine-wave heat exchanger |