| Patents for F04D 29 - Details, component parts, or accessories (70,655) |
|---|
| 07/09/1991 | US5029878 Elastomeric pump casing seal |
| 07/04/1991 | DE4000072A1 Blower for delivery of gases through cylindrical housing - with widening of output channel to improve efficiency |
| 07/04/1991 | DE3942673A1 Water jet propulsion for marine craft - has pump with pivoting inlet guide vanes to vary water flow |
| 07/03/1991 | EP0435485A1 Device incorporating microporous membrane for venting gases from seal assembly of a reactor coolant pump |
| 07/03/1991 | EP0434911A1 Blower or pump with vertically orientated shaft |
| 07/03/1991 | CN1013051B Vane for fan with multi-blades |
| 07/02/1991 | US5028219 Bearings for use in negative-pressure environments |
| 07/02/1991 | US5028218 Immersion pump assembly |
| 07/02/1991 | US5028204 Gas compressor having a dry gas seal on an overhung impeller shaft |
| 07/02/1991 | CA1285538C Blower for propelling a continuous gas stream |
| 06/27/1991 | WO1991009230A1 Variable speed turbo vacuum pump |
| 06/27/1991 | DE4041739A1 Attaching plastics fan wheel to metal rotor - involves short barbed hook on surface of rotor |
| 06/27/1991 | CA2032642A1 Shaft seal for slurry pumps (2) |
| 06/26/1991 | EP0433939A1 Device for stepless controlling the volume flow of radial blowers |
| 06/26/1991 | CN2079676U Submersible pump |
| 06/26/1991 | CN2079661U Colling fan blade for internal-combustion engine |
| 06/25/1991 | US5026253 Belt-driven water pump |
| 06/25/1991 | US5026251 Compact fan unit for automobile |
| 06/25/1991 | CA1285252C Centrifugal blower wheel and method of manufacture |
| 06/20/1991 | DE3941612A1 Plastics cooling fan wheel - is used in vehicle cooling system and incorporates steel reinforcement ring |
| 06/20/1991 | DE3941444A1 Permanent-magnet drive for pump, stirrer on tap - is encased in splint bowl of carbon fibre or aramide reinforced plastic with carborundum bearing rings |
| 06/19/1991 | EP0433168A1 Turbomachine casing with reinforced axial retention |
| 06/19/1991 | EP0432891A2 A diffuser |
| 06/19/1991 | EP0432885A1 Mounting of adjustable stator vanes in an axial compressor stage |
| 06/19/1991 | CN2079230U Centrifugal fan impeller inlet sealing |
| 06/19/1991 | CN2079229U Vertical centrifugal mud pump |
| 06/18/1991 | US5024452 Reactor coolant pump having thermally stabilized hydrostatic sealing assembly |
| 06/18/1991 | US5024267 Cooling apparatus for heat exchanger |
| 06/13/1991 | WO1991008425A1 Heat recovering ventilator |
| 06/12/1991 | EP0431742A2 Turbo-air freshener |
| 06/12/1991 | EP0431332A2 Magnetically driven pump |
| 06/12/1991 | CN2078815U Liquid-pumping pipe without pumping out precipitated liquid stain |
| 06/12/1991 | CN1052184A Hot gas blower |
| 06/12/1991 | CN1012834B Housing carrier for turbomachines |
| 06/11/1991 | US5022900 Forced ventilation filtration device |
| 06/11/1991 | US5022828 Cooler fan orifice assembly |
| 06/11/1991 | US5022825 Pitch retention member |
| 06/11/1991 | US5022824 Pinned airfoil propeller blade |
| 06/11/1991 | US5022823 Rotor attachment assembly |
| 06/11/1991 | US5022821 Variable pitch fan |
| 06/11/1991 | US5022819 Air fragrance device for ceiling |
| 06/11/1991 | US5022818 Compressor diaphragm assembly |
| 06/11/1991 | US5022815 Structure for mounting a fan to a fan motor |
| 06/07/1991 | CA2030319A1 High-temperature pump assembly with fluid diverting ribs |
| 06/06/1991 | DE4037754A1 Electric blower for motor vehicle - has control circuit air-cooled by diverted air-stream |
| 06/05/1991 | EP0430394A1 Hot gas blower |
| 06/05/1991 | CN2078385U Roof ventilator |
| 06/05/1991 | CN1051963A Oil reclaim system |
| 06/04/1991 | US5022039 Electric discharge |
| 06/04/1991 | US5021696 Cooling fan with reduced noise for variable speed machinery |
| 06/04/1991 | US5021048 Blood pump drive system |
| 06/04/1991 | US5020971 Rotatable assembly |
| 05/30/1991 | WO1991007593A1 Multi-sweep blade with abrupt sweep transition |
| 05/29/1991 | EP0429329A2 Fan, its support and refrigerating apparatus of the ventilated type containing such a fan and such a support |
| 05/29/1991 | DE3939156A1 Composite impeller for centrifugal pump - has front disc of bronze or other material at inlet which works easily against steel |
| 05/29/1991 | CN2077920U Motor fixing base |
| 05/29/1991 | CN2077916U Acid and alkali pumps sealed by negative-pressure |
| 05/29/1991 | CN1012698B Device for extending performance of radial flow compressor |
| 05/29/1991 | CA2022701A1 Hot gas blower |
| 05/28/1991 | US5019136 Method and apparatus for separating gas with a pump from a medium being pumped |
| 05/28/1991 | US5018951 Portable electrical fan |
| 05/28/1991 | US5018944 Ceiling fan cleaner apparatus |
| 05/22/1991 | EP0428473A1 Oil reclaim system |
| 05/22/1991 | EP0428210A1 Circulation pump for circulating the cooling liquid for internal combustion engines |
| 05/22/1991 | EP0427986A1 Liquid pump |
| 05/21/1991 | US5017104 Stabilizer for vertically driven pumps |
| 05/21/1991 | US5017103 Centrifugal blood pump and magnetic coupling |
| 05/21/1991 | US5017092 Rotor blade retention |
| 05/21/1991 | US5017087 Multi-functional rotary hydraulic machine systems |
| 05/21/1991 | US5017086 Hydraulic periphery pumps |
| 05/21/1991 | US5016825 Grinding impeller assembly for a grinder pump |
| 05/16/1991 | WO1991006779A1 Shroud assembly for axial flow fans |
| 05/16/1991 | WO1991006778A1 Regenerative pump and method discharging pressurized fluid therefrom |
| 05/16/1991 | WO1991006749A1 Turbocharger compressor wheel assembly with boreless hub compressor wheel |
| 05/16/1991 | DE3937564A1 Fuel pump for motor vehicle - has fuel pump, motor and strainer assembled to form single assembly |
| 05/15/1991 | EP0427608A1 Device for preventing the deposition of impurities inside apparatuses which are not directly accessible |
| 05/15/1991 | CN2077054U Vane-folding electric fan |
| 05/15/1991 | CN2077053U Centrifugal fan blade device |
| 05/14/1991 | US5015900 Motor support and method of making |
| 05/08/1991 | EP0425889A1 Rotor blade of axial-flow machines |
| 05/08/1991 | EP0425613A1 Double-acting pump, in particular for windscreen wiper systems in motor vehicles. |
| 05/08/1991 | DE3936429A1 Sealing gap in pump or compressor - involves use of fibre materials to form flocculation zones |
| 05/08/1991 | DE3933868A1 Automobile ventilation fan with electronically-commutated drive motor - has fan wheel formed by moulded plastics motor armature |
| 05/08/1991 | CN2076618U Energy saving case for submersible pump |
| 05/08/1991 | CN2076617U Energy saving water pump set |
| 05/08/1991 | CN1051232A Rotary blades for axial-flow machines |
| 05/07/1991 | US5013215 Blowers for freezer system and methods of installation thereof |
| 05/02/1991 | EP0425257A2 Centrifugal blood pump |
| 05/02/1991 | EP0425040A2 Device for coupling a fan to its drive shaft, particularly in fan-assisted domestic electric ovens |
| 05/02/1991 | DE3935233A1 Radial fan enclosed in quadri-form housing - method of inserting spirally contoured guide plate |
| 05/01/1991 | CN2076181U Vanes with high lift coefficient and high lift-drag ratio |
| 05/01/1991 | CN2076180U 离心轮 Centrifugal wheel |
| 05/01/1991 | CN2076175U Large-power magnetically driving pump |
| 04/30/1991 | US5011372 Aeration apparatus for pond |
| 04/30/1991 | US5011371 Centrifugal compressor/pump with fluid dynamically variable geometry diffuser |
| 04/30/1991 | US5011370 Centrifugal pump |
| 04/30/1991 | US5011104 Adjustable frame |
| 04/30/1991 | CA1283578C Pump |
| 04/25/1991 | DE4028091A1 Car air conditioning radial-flow fan - has annular gap on housing suction side for direct coupling of suction and pressure chambers |
| 04/25/1991 | DE4023724A1 Radial-flow fan with radial impeller - has inlet nozzle with arcuated contour shifted radially inwards for specified tangent inclination |