| Patents for F04D 23 - Other rotary non-positive-displacement pumps specially adapted for elastic fluids (928) |
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| 08/30/2001 | DE10041332C1 Side channel type compressor includes sealing ring having at least one radial slot, and fitted near carrier ring so as to seal gap between rotor and casing |
| 08/28/2001 | US6280157 Sealless integral-motor pump with regenerative impeller disk |
| 07/04/2001 | CN1068098C Air movement appts. |
| 06/26/2001 | US6250882 Portable working machine provided with a centrifugal air blower |
| 06/21/2001 | US20010004437 Radial blower |
| 06/13/2001 | DE19959344A1 Radialgebläse Centrifugal blower |
| 06/13/2001 | DE19955955A1 Side channel machine e.g. high power fan |
| 05/23/2001 | EP1101946A2 Crossing spiral compressor/pump |
| 05/19/2001 | CA2317855A1 Crossing spiral compressor/pump |
| 05/02/2001 | EP1096153A2 Impeller for circumferential current pump |
| 05/02/2001 | EP1096151A2 Impeller for circumferential current pump and method of forming the same |
| 04/18/2001 | EP0850360B1 Housing for a side channel compressor |
| 03/21/2001 | EP0850361B1 Side channel compressor |
| 03/15/2001 | WO2001018402A1 Welded connector for blade liner |
| 03/08/2001 | WO2001016491A1 Centrifugal pump |
| 02/08/2001 | DE19938024C1 Radial turbine/fan has structured channels for compression or relaxation gas flows giving an increased power rating |
| 02/08/2001 | DE19937012A1 Fuel conveyance aggregate, having electric motor for driving impeller, which is formed as switched reluctance motor |
| 01/16/2001 | US6174131 Feeding hydrogen sulfide to first impeller, rotating impeller for initially compressing hydrogen sulfide, feeding hydrogen sulfide from first impeller to second impeller, rotating second impeller for further compressing the hydrogen sulfide |
| 01/16/2001 | US6174128 Impeller for electric automotive fuel pump |
| 01/03/2001 | EP1065383A1 Sealless integral-motor pump with regenerative impeller disc |
| 12/14/2000 | DE19926777A1 Seitenkanalverdichter Side channel blowers |
| 12/13/2000 | EP1059456A2 Side channel compressor |
| 11/30/2000 | WO2000071237A1 Device for the mixing of liquid with gas and/or other liquids and/or granular, favourably powder-like material, and for the transportation of such mixtures |
| 11/23/2000 | DE19921765A1 Seitenkanalmaschine Side channel machine |
| 11/16/2000 | WO2000068577A1 Side channel machine |
| 11/07/2000 | US6142728 Side channel blower, in particular for supplying combustion air to the auxiliary heater of a motor vehicle |
| 10/25/2000 | EP1046786A2 Helical flow compressor/turbine permanent magnet motor/generator |
| 10/19/2000 | CA2301415A1 Helical flow compressor/turbine permanent magnet motor/generator |
| 10/12/2000 | WO2000059358A1 Balanced flow vacuum cleaner blower |
| 10/12/2000 | CA2366817A1 Balanced flow vacuum cleaner blower |
| 10/10/2000 | US6129508 Side channel compressor |
| 10/05/2000 | WO2000058629A1 Side channel compressor |
| 09/27/2000 | CN1268208A Multi-stage side channel pump |
| 08/22/2000 | US6105205 Power working machine |
| 08/16/2000 | EP1028256A2 Impeller for electric automotive fuel pump |
| 08/03/2000 | DE19902626A1 Side channel fan has radial gap with size dependent on radial distance from axis and smaller near inner edge of impeller wheel bounding on hub than near outer edge of impeller wheel |
| 07/11/2000 | US6086325 Side channel machine |
| 06/27/2000 | CA2086554C Rotary disc pump |
| 06/21/2000 | DE19958064A1 Regenerative pump with housing having fluid inlet and outlet has impeller rotatably located in housing with first grooves formed on at least one side |
| 06/13/2000 | US6073305 Debris blower |
| 06/07/2000 | EP1005615A1 Multi-stage side channel pump |
| 06/06/2000 | US6071071 Side-channel fan, in particular for supplying combustion air in an independent heater of a motor vehicle |
| 06/06/2000 | US6070404 Gaseous fuel compression and control method |
| 04/12/2000 | CN1051291C Grooved disk apparatus |
| 03/14/2000 | US6036456 Electrical air pump adapted for being periodically turned on and off and reversed in pumping direction |
| 03/09/2000 | DE19840635A1 Ring channel blower esp. for combustion air in e.g. motor vehicle heaters has radial expanded part on outer edge of ring channel to reduce noise generation |
| 02/29/2000 | CA2038607C Toric pump |
| 02/03/2000 | DE19906515C1 Side channel blower for motor vehicle heater |
| 02/01/2000 | US6019571 Side channel compressor |
| 12/16/1999 | DE19854756C1 Annular duct blower for motor vehicle heater combustion air |
| 11/17/1999 | CN2349389Y High-efficient inclained flow type water pump |
| 11/17/1999 | CN1235246A Negative pressure wing pump |
| 11/09/1999 | US5980203 Spark-prevention coating for oxygen compressor shroud |
| 11/04/1999 | DE19847522C1 Ring channel blower for vehicle heating air |
| 10/28/1999 | DE19818667A1 Centrifugal compressor with radial compressor wheel |
| 10/26/1999 | US5971687 Fuel pump and method of manufacturing the same |
| 10/21/1999 | DE19849836C1 Annular channel blower for vehicle heater |
| 10/12/1999 | US5964573 Housing for a side channel compressor |
| 09/02/1999 | CA2263265A1 Debris blower |
| 08/10/1999 | US5934871 Method and apparatus for supplying a anti-oxidizing gas to and simultaneously cooling a shaft and a fan in a heat treatment chamber |
| 07/01/1999 | DE19756026A1 Two-stage ring channel blower |
| 06/22/1999 | US5913329 High temperature, high speed rotary valve |
| 06/09/1999 | EP0834019A4 An air movement apparatus |
| 05/19/1999 | EP0916027A1 Side channel compressor |
| 05/04/1999 | US5899673 Helical flow compressor/turbine permanent magnet motor/generator |
| 04/07/1999 | EP0907027A1 Electric motor driven air pump |
| 03/18/1999 | DE19740582A1 Electric air pump for active carbon trap rinsing device |
| 03/17/1999 | CN2310883Y Grip driving device |
| 03/04/1999 | WO1999010656A1 Multi-stage side channel pump |
| 02/25/1999 | DE19736678A1 Multistep side channel pump for compressing media |
| 12/29/1998 | CA2098019C Floating self-centering turbine impeller |
| 12/22/1998 | US5850733 Gaseous fuel compression and control system and method |
| 12/16/1998 | EP0884480A2 Vacuum pump |
| 12/15/1998 | US5848873 Vacuum pumps |
| 11/24/1998 | US5839374 Blower for generating static pressure |
| 11/19/1998 | DE19720281A1 Liquid fuel air heater especially independently driven heater for motor vehicle |
| 10/22/1998 | WO1998046886A1 Rotary vortical machine |
| 10/21/1998 | CN1196777A Housing of side channel compressor combined with two semi-housings |
| 10/13/1998 | US5819524 Gaseous fuel compression and control system and method |
| 09/24/1998 | WO1998041762A2 Toroidal turbine |
| 09/23/1998 | CN1194027A Side channel compressor |
| 09/17/1998 | DE19708954A1 Side channel compressor with bladed rotor wheel |
| 09/17/1998 | DE19708953A1 Side channel compressor with bladed rotor wheel |
| 09/09/1998 | EP0863314A1 Side-channel compressor with tapered channel |
| 08/12/1998 | EP0646728B1 Vortex compressor |
| 08/11/1998 | US5791870 For defining a fluid passageway |
| 07/22/1998 | EP0701528A4 Grooved disk apparatus |
| 07/14/1998 | US5779433 Rotary suction and blowing machine |
| 07/01/1998 | EP0850362A1 Housing for a sound absorber which can be connected to a compressor |
| 07/01/1998 | EP0850361A1 Side channel compressor |
| 07/01/1998 | EP0850360A1 Housing for a side channel compressor |
| 06/10/1998 | EP0846866A2 Compressor for gases containing hydrogen sulfide |
| 06/03/1998 | EP0845600A2 Side-channel machine |
| 04/22/1998 | EP0837231A2 Gaseous fuel compression and control system and method |
| 04/22/1998 | EP0837224A2 Helical flow compressor/turbine permanent magnet motor/generator |
| 04/08/1998 | EP0834019A1 An air movement apparatus |
| 04/01/1998 | EP0833059A2 Gas compression method |
| 03/26/1998 | DE19638847A1 Combustion-air fan with lateral passage |
| 02/18/1998 | CN1173913A Air movement appts. |
| 02/17/1998 | US5718561 Side channel compressor |