Patents for F04D 19 - Axial-flow pumps specially adapted for elastic fluids (3,780)
05/2002
05/30/2002US20020064451 Gas friction pump
05/28/2002US6394754 Axial flow fan
05/28/2002US6394747 Molecular drag vacuum pumps
05/23/2002DE10056144A1 Gasreibungspumpe Gas friction pump
05/22/2002EP1207309A2 A compound motor and operational method thereof
05/21/2002US6393208 Compressor with integrated impeller and motor
05/16/2002US20020057964 Screw-type dry vacuum pump
05/15/2002EP1205741A2 Leak detection pump
05/15/2002EP1205667A2 Gas friction pump
05/15/2002EP1205666A2 Screw-type dry vacuum pump
05/15/2002EP1205638A2 Inlet guide vane and shroud support contact
05/14/2002US6386830 Quiet and efficient high-pressure fan assembly
05/10/2002WO2002036965A1 Axial flow turbo compressor
05/10/2002CA2427600A1 Axial flow turbo compressor
05/09/2002US20020054815 Turbo-molecular pump
05/09/2002US20020053848 Compound motor and operational method thereof
05/08/2002DE10055057A1 Leak detector pump has high vacuum pump, gas analyzer, test object connector, gas outlet opening, gas inlet opening, valve bodies and gas connections in or forming parts of housing
05/08/2002DE10053664A1 Mechanische kinetische Vakuumpumpe Mechanical kinetic vacuum pump
05/08/2002DE10053663A1 Mechanische kinetische Vakuumpumpe mit Rotor und Welle Mechanical kinetic vacuum pump rotor and shaft
05/07/2002US6382249 Vacuum exhaust system
05/02/2002WO2002035100A1 Mechanical kinetic vacuum pump
05/02/2002WO2002035099A1 Mechanical kinetic vacuum pump with rotor and shaft
05/02/2002EP1201929A2 Vacuum pump
05/02/2002EP1201928A2 Disks for a turbo molecular pump
05/02/2002EP1200742A1 Stator ring for a turbomolecular vacuum pump
05/02/2002EP1200739A1 Friction vacuum pump with active pumping elements
05/02/2002DE10052637A1 Scheiben für eine Turbomolekularpumpe Discs for a turbo-molecular pump
04/2002
04/30/2002US6379113 Propeller apparatus
04/30/2002US6379111 High volume ventilation fan with noise attenuation for personal computer
04/24/2002EP0746689B1 Housing with recirculation control for use with banded axial-flow fans
04/23/2002US6375413 Vacuum pumps
04/18/2002WO2002031360A1 Pump embodied as a side channel pump
04/18/2002US20020044866 Multiple-type pump
04/16/2002US6371735 Vacuum pumps
04/11/2002DE10048695A1 Side channel pump for conveying fluid gas mixtures has pump channel running in a spiral coil round rotor
04/11/2002DE10046766A1 Compound-Reibungsvakuumpumpe Compound friction vacuum pump
04/09/2002US6368082 Vacuum pump with rotor supporting gas bearings
04/04/2002WO2002027190A1 Multi-stage impeller
04/04/2002WO2002027189A1 Compound friction vacuum pump
04/04/2002US20020039533 Vacuum pump
04/04/2002CA2420767A1 Multi-stage impeller
04/02/2002US6364604 Vacuum pump and vacuum apparatus equipped with vacuum pump
03/2002
03/28/2002WO2002025116A1 Turbomolecular vacuum pump with rows of rotor blades and rows of stator blades
03/28/2002DE10046506A1 Turbo-molecular vacuum pump has part of blades thickened in region of pressure side edge
03/21/2002WO2001086151A3 Magnetic bearing with damping
03/20/2002CN1341064A Low speed cooling fan
03/14/2002WO2002021230A2 Method and device for regulating a vacuum in a chamber
03/14/2002US20020029912 Bi-directional automotive cooling fan
03/14/2002DE10043783A1 Verfahren und Vorrichtung zur Regelung des Vakuums in einer Kammer Method and apparatus for regulating the vacuum in a chamber
03/14/2002DE10043235A1 Vakuumpumpe Vacuum pump
03/12/2002CA2032192C Axial flow impeller
03/07/2002WO2002018794A1 Vacuum pump
03/07/2002US20020028146 Impeller for axial flow type blower
03/07/2002US20020028132 Turbo-molecular pump
02/2002
02/28/2002US20020025249 Vacuum pump
02/27/2002EP1181483A1 Seal-gas valve device
02/21/2002WO2002013652A1 Motorless compressor
02/19/2002US6347925 Flywheel system with parallel pumping arrangement
02/14/2002US20020018727 Vacuum pump
02/14/2002US20020018712 Vacuum pump
02/06/2002EP1178217A2 Vacuum pump
02/06/2002EP0918938B1 Friction vacuum pump
02/05/2002US6343910 Turbo-molecular pump
01/2002
01/24/2002DE10032607A1 Teilchenstrahlgerät mit einer im Ultrahochvakuum zu betreibenden Teilchenquelle und kaskadenförmige Pumpanordnung für ein solches Teilchenstrahlgerät Particle beam with a to be operated in an ultrahigh vacuum and particle cascade pumping arrangement for such a particle beam
01/23/2002EP1173359A2 Low speed cooling fan
01/23/2002CN1332950A Plasma vacuum pump
01/17/2002WO2002005310A1 Particle radiation device comprising a particle source that is operated in an ultrahigh vacuum and a cascade pump assembly for a particle radiation device of this type
01/15/2002US6338609 Convex compressor casing
01/10/2002WO2002002957A1 Hybrid contact roller bearings for vacuum pump
01/10/2002WO2002002943A1 Flywheel system with parallel pumping arrangement
01/09/2002EP1170508A1 Molecular drag vacuum pumps
01/09/2002EP0723625B1 Active tip flow bypass in stator vane channel
01/09/2002CN1330228A Axial fan with brushless direct-current dynamo
01/03/2002US20020001521 Low speed cooling fan
01/03/2002DE10111546A1 Gasreibungspumpe Gas friction pump
01/03/2002DE10030497A1 Axialventilator mit reversierbarer Strömungsrichtung Axial fan with reversible flow direction
01/02/2002EP1167773A2 Turbo-molecular pump
01/02/2002EP1167772A1 Vacuum pump
01/02/2002EP1167771A2 Reversible axial fan
01/02/2002EP1165966A1 Rotor fixture for a friction vacuum pump
01/01/2002US6334754 Turbomolecular pump
12/2001
12/27/2001US20010055526 Turbo-molecular pump
12/25/2001US6332752 Turbo-molecular pump
12/21/2001CA2347931A1 Axial fan with reversible flow direction
12/19/2001EP1164295A1 Axial flow fan with brushless direct current motor
12/19/2001EP1164294A1 Gas friction pump
12/13/2001US20010051100 Turbo molecular pump
12/05/2001EP1160459A2 Vacuum pump
11/2001
11/22/2001US20010043868 Turbo-molecular pump
11/22/2001DE10022788A1 Hot gas ventilator for industrial oven; has semi-axial impeller enclosed directly by ninety degree deflector to guide volume flow from impeller radially away from impeller axis
11/21/2001EP1156223A1 Vacuum pump device
11/20/2001US6318093 Electronically controlled cryopump
11/15/2001WO2001086158A1 Machine, preferably a vacuum pump, with magnetic bearings
11/15/2001WO2001086151A2 Magnetic bearing with damping
11/15/2001US20010041134 Rotor for transferring air
11/15/2001US20010041133 Gas friction pump
11/14/2001CN1074811C Cooling device for heat exchanger
11/13/2001US6315517 Vacuum pump
11/09/2001CA2345942A1 Bi-directional automotive cooling fan
11/08/2001DE10022062A1 Machine, preferably turbo-molecular vacuum pumps, has magnet bearings each comprising concentrically-arranged magnet ring stacks
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