| Patents for F04D 25 - Pumping installations or systems specially adapted for elastic fluids (17,127) |
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| 02/22/1994 | USRE34551 Ducted fan |
| 02/22/1994 | US5288216 Fan unit for generating gas streams |
| 02/22/1994 | US5288202 Centrifugal regulator device for opening and closing the shutter of an axial electric fan unit and an electric fan unit utilizing this device |
| 02/17/1994 | DE4226843A1 Centrifugal fan for heating and air-conditioning in car - has electric motor formed by permanent magnets mounted on impeller blades and ring-shaped stator winding |
| 02/17/1994 | DE4226799A1 Exhaust gas driven supercharging pump for vehicle engine - incorporates two separate turbine wheels mounted on single shaft |
| 02/16/1994 | CN2156324Y Hollow axle device for automobile fan motor |
| 02/09/1994 | CN2155451Y Cold-hot air electric fan |
| 02/09/1994 | CN2155450Y Cold-hot air electric fan |
| 02/03/1994 | WO1994002789A1 Refrigeration system utilizing an expansion jet compressor |
| 02/03/1994 | CA2119564A1 Refrigeration system utilizing an expansion jet compressor |
| 02/02/1994 | EP0446316B1 Miniature fan |
| 01/26/1994 | CN2154369Y Pocket electric fan |
| 01/26/1994 | CN2154368Y Cold-warm fan |
| 01/26/1994 | CN1081238A Multi-function automatic monitoring scavenger fan |
| 01/25/1994 | US5281106 Radial-blade double-inlet fan |
| 01/25/1994 | US5281103 Mini table fan |
| 01/20/1994 | DE4229038A1 Cooling fan attachment for electric motor - uses electromagnetic induction between source part attached to machine shaft and fan wheel for rotation of latter |
| 01/19/1994 | EP0579344A1 Method of manufacturing a gearwheel element of a pinion shaft |
| 01/19/1994 | CN2153663Y Bidirectional ventilator |
| 01/19/1994 | CN2153662Y Internal rotor centrifugal ventilator |
| 01/19/1994 | CN2153661Y Pull-switch type ventilator for toilet |
| 01/18/1994 | US5279503 Cooling system for a self-propelled vehicle |
| 01/12/1994 | CN2152926Y Refrigerating scavenger electric fan |
| 01/12/1994 | CN2152925Y 风扇 Fan |
| 01/11/1994 | US5277547 Motor fan unit |
| 01/05/1994 | CN2152177Y Natural ventilating device for grain storehouse |
| 01/05/1994 | CN2152104Y Fish tail shape wind guide swing electric fan |
| 01/05/1994 | CN2152103Y Micro wind electric fan and ceiling fan with adjustable wind and pressure |
| 01/04/1994 | US5275538 Coolant pump system for an automotive vehicle |
| 01/04/1994 | US5275533 Quiet compressed air turbine fan |
| 01/04/1994 | US5275356 Propulsion system for a V/STOL aircraft |
| 12/29/1993 | EP0575401A1 Dual fan cooling system |
| 12/29/1993 | CN2151286Y Electric toy fan |
| 12/29/1993 | CN2151285Y Air cooler of electric fan |
| 12/29/1993 | CN2151284Y Parallel impeller centrifugal fan for cleaner-seperator |
| 12/29/1993 | CN2150932Y Axial fan with guide disc for seperator |
| 12/28/1993 | US5273404 Tubular shaft motor and pump assembly |
| 12/22/1993 | CN2150369Y Ventilating fan |
| 12/22/1993 | CN2150368Y Portable folding electric fan |
| 12/21/1993 | US5271717 Coupling fan |
| 12/16/1993 | DE4322861A1 Axial delivery dust extraction unit - has hollow drive shaft and separately contained cooling air system |
| 12/16/1993 | DE4321175A1 Meridian compressor for turbo gas generator - has guide device with opposite pairs of deflection cylinders, and drum guide with opposite pairs of blade rows |
| 12/16/1993 | DE4219243A1 Domestic refrigerator and/or freezer - uses single motor driving air circulation fan within inner storage space and condenser fan on outside of storage space |
| 12/14/1993 | US5269665 Portable hand-held blower/vacuum unit with resilient engine mounting system |
| 12/08/1993 | CN2148844Y Light-transmission electricity-saving household scavenger fan |
| 12/08/1993 | CN2148843Y Mosquito-killing fan |
| 12/08/1993 | CN2148842Y Two-purpose cooling and warming fan with easily-separable electric heater |
| 12/08/1993 | CN2148841Y Travelling fan with function of electric razor |
| 12/08/1993 | CN1023030C Ceiling fan assembly |
| 12/07/1993 | US5267842 For ventilating electrical and electronic equipment |
| 12/01/1993 | CN2148204Y Numerically-controlled oscillating device for electric fan |
| 12/01/1993 | CN2148203Y Multifunctional cold air machine |
| 11/30/1993 | US5266004 Blower |
| 11/25/1993 | WO1993023672A1 Gas friction vacuum pump |
| 11/25/1993 | DE4316900A1 IC engine supercharging blower with infinitely variable transmission - which is engine driven and has drive and driven discs, belt, flywheel and spring section |
| 11/24/1993 | EP0570455A1 Compressor system in a subsea station for transporting a well stream. |
| 11/23/1993 | USRE34456 Miniature axial fan |
| 11/18/1993 | EP0569738A1 Small commutator motor |
| 11/18/1993 | DE4216237A1 Gasreibungsvakuumpumpe Gas friction vacuum pump |
| 11/17/1993 | CN2146590Y Head-shaking electric fan with lighting means at night |
| 11/17/1993 | CN1078539A Multi-function cold-warm air blower |
| 11/10/1993 | CN2145885Y Dual-purpose ground bed plate |
| 11/10/1993 | CN2145884Y Multifunctional minisize electrical fan |
| 11/04/1993 | DE4214453A1 Miniature electric motor bearing arrangement - has reduced axial play of rotor shaft achieved by adjusting starter elements and their tolerance |
| 11/03/1993 | EP0567874A1 Flow machine for gas compression |
| 11/03/1993 | EP0567688A1 Fluid conveying device, particularly a fan |
| 11/03/1993 | CN2145274Y Revolving vane hanging fan |
| 11/03/1993 | CN2145273Y Vertical swinging apparatus of fan |
| 11/02/1993 | US5258676 Drive unit for double fan |
| 10/27/1993 | CN2144723Y Double blade ball shape electric fan |
| 10/27/1993 | CN1077783A Variable blade electric fan |
| 10/26/1993 | US5256039 Remote controlled moveable fan |
| 10/20/1993 | CN2144206Y Vertical pendent fan |
| 10/20/1993 | CN2144205Y Centrifugal boiler draught fan |
| 10/20/1993 | CN2144204Y Fan With rotary blades |
| 10/20/1993 | CN2144203Y Structure for circuit board of fan |
| 10/20/1993 | CN2143908Y Bacteria-and dust-free beauty machine |
| 10/20/1993 | CN1077523A Cold wind fan |
| 10/13/1993 | EP0564938A1 Centrifugal fan for automobile ventilation and heating |
| 10/13/1993 | CN2143686Y Desk lamp fan turning in plane |
| 10/13/1993 | CN1022435C Oppositely-arranged double-rotor centrifugal fluid-charger |
| 10/06/1993 | EP0563875A1 A centrifugal regulator device for opening and closing the shutter of an axial electric fan unit |
| 10/06/1993 | CN2143267Y 多功能电风扇 Multifunction fans |
| 10/05/1993 | US5249934 Air cycle machine with heat isolation having back-to-back turbine and compressor rotors |
| 10/05/1993 | US5249923 Water actuated outdoor fan |
| 09/30/1993 | DE4209463A1 Propeller arrangement for ventilation of room or work-place - has drive arms connected to vertical axis in form of elastic torsion rod. |
| 09/29/1993 | EP0561864A1 Radial ventilator |
| 09/29/1993 | CN2142900Y Multi-function floor electric fan |
| 09/29/1993 | CN2142899Y Multi-function electric fan |
| 09/29/1993 | CN2142898Y Ultra-tin mini-size radiating-fan |
| 09/29/1993 | CN2142897Y Ceiling fan |
| 09/29/1993 | CN2142896Y Stageless speed-changing AC./DC. mini-size blast fan |
| 09/29/1993 | CN2142884Y Assembled axial-flow main ventilator for mine |
| 09/23/1993 | DE4308698A1 Gas flow machine for aircraft engine or air conditioning system - has compression cycle which compensates for system losses |
| 09/23/1993 | DE4213203C1 Radial-flow fan or ventilator - has transmission housing fixed to fan housing and with wall accommodating motor and belt tensioner |
| 09/22/1993 | CN2142505Y Integrated electric fan with desk lamp |
| 09/16/1993 | DE4207710A1 Electromagnetically operated friction disc coupling esp. for driving fan wheel in IC engine - rotates wheel with direct rpm of driving pulley across first electromagnetic friction disc coupling and with two different windmilling rpms |
| 09/15/1993 | EP0560612A1 A backdraught shutter for a ventilating fan |
| 09/15/1993 | CN2142155Y Electronic adjustable-speed fan |
| 09/15/1993 | CN2142154Y Swing guide blades for Hongyun fan |