Patents for F04D 29 - Details, component parts, or accessories (70,655)
01/1990
01/10/1990CN1038686A Rotary machine with non positive displacement usable as pump, compressor, impeller, generater or turbine
01/09/1990USRE33142 Centrifugal compressor
01/09/1990US4892460 Propeller breeze enhancing blades for conventional ceiling fans
01/09/1990US4891876 Method of making pump impeller by lost-foam molding
01/09/1990CA1264251A1 Low flow pump
01/04/1990DE3919111A1 Fan impeller
01/03/1990EP0349051A1 Mixed flow compressor and its uses
01/03/1990EP0348931A1 Turbomolecular pump
01/03/1990EP0348846A2 Balanced-fan rotor and method and apparatus for realising the balancing
01/03/1990EP0348674A1 Device for extending the surge margin of a radial compressor
01/03/1990CN2050494U Domestic electric fan dust absorption cover
01/03/1990CN2050493U Automatic barring device of high temp. fan
01/03/1990CN1006321B Balance unit for pump axial force
01/02/1990US4891169 Transition duct for centrifugal fan
01/02/1990US4890988 Canned motor pump
01/02/1990US4890982 Pump impeller and rotor shaft attachment construction
01/02/1990US4890980 Centrifugal pump
01/02/1990US4890977 Variable inlet guide vane mechanism
01/02/1990US4890547 Ventilator scroll arrangement
12/1989
12/28/1989WO1989012920A1 Laser oscillator
12/28/1989WO1989012755A1 Turbine
12/28/1989WO1989012753A1 Multi-stage turbo-compressor
12/27/1989EP0348342A1 Centrifugal machine with opposing rotation impellers
12/27/1989EP0347542A2 Pump unit for liquid-pumps
12/27/1989CN1038337A Vanes for centrifugal air pump with alterable let-in and let-out
12/26/1989US4889470 Compressor diaphragm assembly
12/26/1989US4889468 Submerged type pump
12/26/1989US4889348 Spiral groove seal system for high vapor-pressure liquids
12/20/1989EP0347088A2 Method and apparatus for pumping high consistency medium
12/20/1989EP0347036A2 Shrouding for engine cooling fan
12/20/1989EP0346731A2 Submersible pump
12/20/1989EP0346730A2 Submersible pump assembly
12/20/1989EP0346677A1 Liquid-displacement machine
12/20/1989CN2049704U Screen type rectangular muffler
12/20/1989CN2049703U Air blowing wheel of domestic duster
12/20/1989CN2049699U Multi-stage centrifugal postposition pump capable of bearing axial impact force
12/20/1989CN1038148A Wide lip-shaped fluoroplastic water sealing member
12/19/1989US4887940 Multistage fluid machine
12/14/1989WO1989012174A1 Guide vane for an axial fan
12/14/1989WO1989012173A1 Fan and heat exchanger for a cooling system
12/14/1989WO1989012172A1 Impeller for an axial flow fan
12/14/1989WO1989012171A1 Centrifugal compressor with a container for sealing oil
12/14/1989DE3918333A1 Verbesserungen bei den in elektrischen haushaltsgeraeten verwendeten elektropumpen Improvements in electric pumps used in household electrical appliances
12/13/1989EP0345634A2 Variable output vortex pump
12/13/1989EP0345258A1 Centrifugal pump
12/13/1989CN2049290U Sealing ring for sewage pump
12/12/1989US4886989 Motor mounting method and means
12/12/1989US4886530 Single stage pump and separator for two phase gas and liquid mixtures
12/12/1989US4886430 Canned pump having a high inertia flywheel
12/12/1989US4886426 Submergible pump connecting ejector adapter and guide rail assembly
12/12/1989US4886417 Fuel pump and radial-flow impeller therefor
12/12/1989US4886415 Fan with an essentially square housing
12/12/1989US4885984 Radon removal apparatus
12/07/1989DE3817839A1 Device for imparting a swirl effect to the inflow regions of fluid flow machines
12/07/1989DE3817725A1 Pump with at least one sealing device which is arranged in a corresponding reception bore in the pump case
12/06/1989EP0345214A1 Bearing comprising a shaft, pump comprising such a bearing and use of the pump
12/06/1989EP0345080A2 Molded multi-part generator fan
12/06/1989EP0344587A2 In line-type casing
12/06/1989EP0344532A2 Sealing device of the bearing of a rotating shaft with its drive unit
12/06/1989EP0344517A1 Side channel compressor
12/06/1989EP0344516A1 Multi-stage side channel compressor
12/06/1989EP0344503A2 Magnetic bearing for a fast rotating vacuum pump
12/06/1989EP0344498A2 Blower rotor
12/06/1989EP0344344A1 Method for controlling an oil lubricated vacuum pump
12/06/1989EP0344327A1 Resin-coated carbon fibers, heat-resistant resin composition using same, and parts for internal combustion engines
12/06/1989CN2048907U Vertical centrifuge sand pump without shaft gland
12/05/1989US4884948 Deflectable blade assembly for a prop-jet engine and associated method
12/05/1989US4884945 Dynamic seal arrangement for impeller pump
12/05/1989US4884944 Compressor flow fence
12/05/1989US4884942 Thrust monitoring and balancing apparatus
11/1989
11/30/1989WO1989011596A1 Radial ventilator
11/29/1989EP0343888A2 Method and apparatus for producing fluid pressure and controlling boundary layer
11/29/1989EP0343409A2 Reactor coolant pump shaft seal utilizing shape memory metal
11/29/1989CN2048532U Fan cover
11/29/1989CN1005940B Nuclear reactor coolant pump impeller / shaft assembly
11/28/1989US4883982 Electronically commutated motor, blower integral therewith, and stationary and rotatable assemblies therefor
11/28/1989US4883408 Motor fan retention on a non-stepped shaft
11/28/1989US4883403 Impellers for centrifugal pumps
11/28/1989US4883202 Liquid pumping system
11/28/1989CA1263420A1 Internal compliant seal for compressor
11/23/1989EP0342515A2 Turbomolecular pump
11/23/1989EP0342484A2 Very noiseless motor driven centrifugal fan
11/23/1989DE3816674A1 Method of manufacturing a centrifugal pump impeller
11/23/1989DE3816280A1 Housing part for centrifugal pumps
11/23/1989DE3816148A1 Cooling fan
11/22/1989CN2048139U Antifreezing device with self-warm for submersible pumps in frigid zone
11/22/1989CN2048138U Miniature water pump with changeable axis
11/22/1989CN2048137U Adjustable emit frangrance appliance for electric fan
11/22/1989CN2048134U Cold-air electric fan
11/22/1989CN2048125U Electricfan of sandwich material
11/22/1989CN2048123U Submerible pump of washing equipment for car
11/21/1989US4881871 Peripheral pump
11/21/1989US4881870 Air blower safety control
11/16/1989WO1989011039A1 Submersible motor-driven pump
11/15/1989EP0341553A1 Centrifugal pump
11/15/1989EP0341368A1 Submersible motor pump
11/14/1989US4880362 Rotor with stabilizing magnets
11/14/1989US4880352 Centrifugal liquid pump
11/14/1989US4879880 Air temperature regulator
11/09/1989DE3814186A1 Method for the production of delivery and/or guiding devices for hydrodynamic machines and a radial rotor, especially a coolant pump impeller for internal combustion engines, produced by this method