| Patents for F04D 29 - Details, component parts, or accessories (70,655) |
|---|
| 04/25/1991 | DE3934756A1 Noise damper for axial-flow fan - has adjacent sound absorbing chamber behind diffuser core and/or jacket transversely to flow direction |
| 04/25/1991 | CA2028257A1 Centrifugal blood pump |
| 04/24/1991 | CN2075722U Centrifugal mortar pump without filler |
| 04/24/1991 | CN2075715U Energy saving low noise axial-flow blower |
| 04/24/1991 | CN1012447B 吊扇 Ceiling fan |
| 04/23/1991 | US5009578 Motor driven pumps |
| 04/23/1991 | US5009570 Mounting assembly for the impeller of a fluid pump |
| 04/23/1991 | CA1283366C Reduced loss swept supersonic fan blade |
| 04/18/1991 | WO1991005397A1 Radial type cooling fan for electric motors |
| 04/18/1991 | WO1991005169A1 Miniature fan |
| 04/18/1991 | WO1991005168A1 Pump impeller |
| 04/18/1991 | WO1991005157A1 Turbine inlet silencer |
| 04/17/1991 | CN2075274U Cylinder shaped variable angle spiral type vane for slag slurry pump |
| 04/17/1991 | CN2075267U Household mini-electric water pump |
| 04/17/1991 | CN1012387B Improved centrifugal pump |
| 04/16/1991 | US5007801 Impeller made from a sheet-metal disk and method of manufacturing same |
| 04/16/1991 | US5007798 Centrifugal pump |
| 04/16/1991 | US5007499 Silencer for a centrifugal compressor |
| 04/11/1991 | DE4031177A1 Fan rotor mfr. esp. for motor vehicle alternator - involves sectioning and bending of metallic strip to form integral blades and connections in polygonal annulus |
| 04/11/1991 | DE4029041A1 Heater for motor vehicle - has fan mounted on shaft of driving motor in front of burner to supply air |
| 04/10/1991 | CN2074839U Dual-direction electric fan with noise eliminating screen |
| 04/10/1991 | CN2074838U Motor fan single bearing fix device |
| 04/10/1991 | CN1050599A Balance piston and seal arrangement |
| 04/09/1991 | US5006043 Floating annular seal with thermal compensation |
| 04/09/1991 | US5005990 Pump bearing system |
| 04/09/1991 | CA1282752C Axial blower for corrosive environments featuring complex shaft seals |
| 04/05/1991 | WO1991005384A1 Turbo blower for laser and laser oscillator using the same |
| 04/05/1991 | CA2042401A1 Turbo blower for laser and laser oscillation device employing the turbo blower |
| 04/04/1991 | WO1991004418A1 Construction for the displacement of fluids |
| 04/03/1991 | EP0420786A1 Balance piston and seal arrangement |
| 04/03/1991 | EP0420371A1 An electrical rotary machine and a centrifugal fan for use in an electrical rotary machine |
| 04/03/1991 | EP0420218A1 Submersible pump |
| 04/03/1991 | CN2074393U Centrifugal fan capable of reducing noise at spiral inlet area |
| 04/03/1991 | CN2074392U Civil water pump with single-phase machine |
| 04/03/1991 | CN2074391U Outlet elbow with throttle valve for submersible electric pumps |
| 04/03/1991 | CN2074390U Ring-chained centrifugal sealing device for pumps |
| 04/03/1991 | CN2074387U Lower bearing for ceiling fan |
| 04/03/1991 | CN2074386U Diagonal-flow pipeline fan |
| 04/03/1991 | CN2074385U Sealing means with a spacing chamber |
| 04/03/1991 | CN2074384U New-type slurry pump |
| 03/27/1991 | EP0418303A1 Guide vane for an axial fan. |
| 03/27/1991 | CN2073954U Non-lifting pipe negative-pressure type sealed pump seat |
| 03/27/1991 | CN2073953U Electric fan guard for simulating hand fanning |
| 03/27/1991 | CN2073949U Cold wind and sweet smell device for electric fan |
| 03/27/1991 | CN1050252A Two stage sealing device for water pump |
| 03/27/1991 | CN1012202B Full dry submerged pump with synergistic selaing system |
| 03/26/1991 | US5002462 Hinged and quick mount guard for an electric fan |
| 03/26/1991 | US5002461 Compressor impeller with displaced splitter blades |
| 03/20/1991 | EP0418027A1 A cooling fan for rotating electrical machinery |
| 03/20/1991 | CN2073503U Noise-eliminating device for air-blower |
| 03/20/1991 | CN2073502U Electric fans with vanes of adjustable face angle |
| 03/20/1991 | CN2073501U Centrifugal, rear-directioned vanes with sub-critical vane form |
| 03/20/1991 | CN2073500U Mechanical seal for submersible pump |
| 03/20/1991 | CN1050079A Centrifugal pump housing constructed of sheet metal |
| 03/20/1991 | CN1050078A Dust-removing draught fan |
| 03/20/1991 | CN1012100B Magnetic pump |
| 03/20/1991 | CN1012099B 离心泵 Centrifugal |
| 03/19/1991 | US5000769 System for ventilating a rail traction motor and for dynamically purifying the ventilation air |
| 03/19/1991 | US5000660 Variable skew fan |
| 03/19/1991 | US5000613 Shaft coupling with alignment adjustment device |
| 03/19/1991 | US5000079 Noise-attenuating ventilation pedestal for an electronic enclosure |
| 03/16/1991 | WO1991004419A1 Quiet clutch fan blade |
| 03/16/1991 | CA2065445A1 Quiet clutch fan blade |
| 03/14/1991 | DE3929674A1 LOW-noise high efficiency radial fan - with determination of blade position by notional cone |
| 03/14/1991 | DE3928840A1 Seal for water pump - has housing with outward-protruding flange and primary and secondary seals |
| 03/13/1991 | EP0416990A1 Improved motor air pump |
| 03/13/1991 | EP0416237A1 Pump for liquids |
| 03/13/1991 | EP0416186A2 Axial compressor rotor blades specifically shaped to confine the existence of the energy designated esp. to within their axial working length defined by the dimension L (I.3) |
| 03/13/1991 | CN2073042U 低噪声离心风机 Low noise centrifugal fan |
| 03/12/1991 | US4998861 Drainage pump |
| 03/12/1991 | US4998706 Vane core assembly for use in making centrifugal elastomer coated impellers |
| 03/12/1991 | US4998524 Manifold mounted air pump |
| 03/12/1991 | US4998414 Air conditioning system |
| 03/08/1991 | WO1991003649A1 Sheet metal pump casing |
| 03/08/1991 | WO1991003648A2 Impeller, in particular for hairdressing appliances |
| 03/08/1991 | CA2021088A1 Damper assembly for a strut in a jet propulsion engine |
| 03/07/1991 | WO1991002928A1 Heat exchange apparatus |
| 03/07/1991 | WO1991002659A1 Heating device for the seating compartment of motor vehicles |
| 03/06/1991 | EP0288500B1 Impellers for centrifugal pumps |
| 03/06/1991 | CN2072611U Low-proportion revolution centrifugal pump impeller short vane polarization |
| 03/05/1991 | US4997342 Air blower with flexible housing |
| 03/05/1991 | US4997341 Reduction of transient thermal stresses in machine components |
| 03/05/1991 | US4997340 Balance piston and seal arrangement |
| 03/05/1991 | CA2024388A1 Advanced motor driven air blower and process for assembly |
| 03/05/1991 | CA1280935C Vaned slinger for pumps |
| 03/05/1991 | CA1280933C Roll-formed submersible pump |
| 02/27/1991 | EP0414127A1 Vacuum pump with magnetic bearing |
| 02/27/1991 | EP0413987A2 Axial fan |
| 02/27/1991 | EP0413851A1 Bearing ring for magnetic bearing |
| 02/27/1991 | CN2072163U Ceiling fan jacket |
| 02/26/1991 | US4995790 Centrifugal |
| 02/26/1991 | US4995787 Axial flow impeller |
| 02/26/1991 | CA1280639C Method and apparatus for pumping liquids |
| 02/21/1991 | WO1991002165A1 Variable skew fan |
| 02/21/1991 | WO1991002164A1 High efficiency fan |
| 02/21/1991 | WO1991002163A1 Fan with electric motor |
| 02/21/1991 | DE4023263A1 Heat exchanger with cross-flow fan - has alignment of dividing wall in form of tongue |
| 02/21/1991 | DE4023260A1 Heat exchanger system with cross-flow fan - incorporates dividing wall movable about swivel axis |
| 02/21/1991 | DE3927391A1 Vorrichtung zum beheizen des fahrgastraumes eines kraftfahrzeuges Device for heating the passenger compartment of a motor vehicle |
| 02/20/1991 | EP0413663A2 Industrial axial-flow fan having offset airfoil-to-hub mounting system for improved aerodynamic performance |