| Patents for F04D 17 - Radial-flow pumps specially adapted for elastic fluids, e.g. centrifugal pumps; Helico-centrifugal pumps specially adapted for elastic fluids (4,320) |
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| 02/28/1989 | US4808090 Vacuum motor fan cover |
| 02/21/1989 | CA1250263A1 Portable battery powered blower apparatus for fanning charcoal or other fuel |
| 02/15/1989 | EP0303543A1 Cross-flow fan |
| 02/01/1989 | EP0301285A1 Centrifugal compressor |
| 02/01/1989 | CN2031852U Wing type energy-saving double-suction centrifugal fan |
| 02/01/1989 | CN1030816A 离心式压缩机 Centrifugal compressors |
| 01/18/1989 | EP0299458A2 Apparatus for treatment of a process gas |
| 01/10/1989 | US4797068 Vacuum evacuation system |
| 01/04/1989 | EP0297672A2 Turbo-compressor having air cooled bearing |
| 01/03/1989 | US4795319 Quiet hair dryer |
| 01/03/1989 | US4795311 Centrifugal compressor impeller |
| 12/28/1988 | CA1247570A Screw rotor machine rotor with specific tooth profile |
| 12/07/1988 | CN87107386A Cylindrical fan of multiblade |
| 11/29/1988 | US4787824 Rotating liquid ring vacuum pump |
| 11/10/1988 | DE3814086A1 Heat exchanger system having a cross-flow blower |
| 10/25/1988 | US4780056 For supplying air to a spray paint system |
| 09/13/1988 | US4770606 Centrifugal compressor |
| 08/31/1988 | CN87214211U Water supply pump of boiler |
| 08/10/1988 | CN87213415U Series/parallel self-priming type centrifugal pump |
| 08/03/1988 | EP0277044A2 Cross flow fan system |
| 07/12/1988 | CA1239049A1 Pump |
| 06/15/1988 | EP0270723A1 Impeller for a radial turbomachine |
| 04/26/1988 | US4739628 Extended range heat pump system and centrifugal compressor for use therewith |
| 04/05/1988 | US4735555 Air blower assembly for vacuum cleaner |
| 03/23/1988 | CN87201402U Miniature centrifugal fan |
| 03/09/1988 | EP0258440A1 Rotor of centrifugal compressor |
| 03/09/1988 | CN86206604U Prerotation energy-saving air feeding device for a fan |
| 03/02/1988 | EP0257945A2 Vacuum pump |
| 02/24/1988 | EP0256234A2 Vacuum generating system |
| 02/23/1988 | CA1233146A1 Multi stage centrifugal impeller |
| 02/03/1988 | CN87208108U Low noise draught fan |
| 01/13/1988 | EP0172900B1 Plant for the transport and/or mixture of gas |
| 12/26/1987 | CN87204283U Muffler for ventilators |
| 12/26/1987 | CN87203307U Anti-surge device for turbosuper chargers |
| 12/15/1987 | US4712976 Tangential blower |
| 11/25/1987 | EP0246325A1 Cross-flow cooling fan device |
| 11/11/1987 | EP0244487A1 Cross-flow cooling fan device |
| 11/10/1987 | US4705453 Tangential blower |
| 10/21/1987 | EP0242248A1 Radial ventilator, especially for motor vehicle air conditioning |
| 10/21/1987 | CN86108207A Turbine fan with coder |
| 10/14/1987 | CN87201008U Two-purpose blowing-sucking blower |
| 10/14/1987 | CN87200183U Low noise ventilator |
| 10/08/1987 | DE3628946A1 Multi-stage cross-flow turbine for liquid and gaseous media, or its reversal (cross-flow pump, cross-flow compressor) |
| 09/15/1987 | US4693669 Supercharger for automobile engines |
| 09/02/1987 | CN86108206A Magneto turning fan with coding metwork |
| 08/19/1987 | EP0233174A1 Heat exchanger system provided with a transverse-flow fan |
| 07/30/1987 | WO1987004500A1 Rotor of centrifugal compressor |
| 07/09/1987 | DE3600191A1 Multistage cross flow turbine for liquid and gaseous media and their reversal (cross flow pump, cross flow compressor) |
| 07/07/1987 | US4678398 High efficiency transonic mixed-flow compressor method and apparatus |
| 06/16/1987 | CA1222988A1 Scroll type fluid displacement apparatus |
| 06/09/1987 | CA1222732A1 Scroll type fluid displacement apparatus |
| 06/02/1987 | US4669952 Quiet by-pass vacuum motor |
| 05/26/1987 | US4668160 Vacuum pump |
| 05/21/1987 | WO1987003149A1 Cross-flow cooling fan device |
| 05/21/1987 | WO1987003049A1 Cross-flow cooling fan device |
| 05/20/1987 | CN86201819U Centrifugal multi-functional electrical fan |
| 05/05/1987 | US4662818 Tangential blower |
| 04/28/1987 | US4661042 Rotary vaned machine |
| 04/15/1987 | EP0217847A1 Pump or compressor unit. |
| 03/31/1987 | US4653976 Method of compressing a fluid flow in a multi stage centrifugal impeller |
| 03/10/1987 | US4648787 Apparatus for transporting and/or mixing gases |
| 03/03/1987 | CA1218635A1 Centrifugal fans |
| 02/24/1987 | US4645414 Combined vacuum pump, bearing and seal assembly |
| 02/24/1987 | US4645413 Friction pump |
| 01/22/1987 | DE3525820A1 Friction discs which provide guidance |
| 01/13/1987 | CA1216562A1 Screw compressor |
| 12/30/1986 | EP0206977A2 Quiet bypass exhauster motor |
| 12/17/1986 | CN85205477U Combined centrifugal-cyclonic air-pump |
| 12/02/1986 | US4626176 Pump employing the suction effect of a rotating liquid ring |
| 11/12/1986 | EP0201318A2 High efficiency transonic mixed-flow compressor method and apparatus |
| 10/21/1986 | US4618315 Small fan |
| 09/25/1986 | WO1986005557A1 Pump or compressor unit |
| 09/03/1986 | CN85204802U Centrifugal ventilator made of composite |
| 09/03/1986 | CN85109169A Vortex and centrifugal compound air-pump |
| 08/06/1986 | CN85202558U Blade diffuser of centrifugal air blower and compressor |
| 07/30/1986 | CN85100160A Centrifugal high effective ventilator with capacity of eliminating vibration caused by accumulatingdust |
| 07/16/1986 | EP0187645A2 Centrifugal, inline, opposed balance gas blower |
| 07/15/1986 | CA1207725A1 Fluid deflecting apparatus |
| 07/15/1986 | CA1207724A1 Electric fan assembly |
| 07/02/1986 | CN85107811A New structure of centrifugal fun for inner efficiency increasing |
| 06/17/1986 | US4595142 Blower/spray device |
| 06/04/1986 | EP0183655A2 Axial and centrifugal fan |
| 05/27/1986 | CA1204964A1 Centrifugal pump |
| 05/13/1986 | US4588361 High vacuum rotary pump |
| 04/23/1986 | EP0178645A1 Cross-flow ventilator for the transport of gas |
| 04/23/1986 | EP0178459A1 Rotor cylinder for line flow fan |
| 04/02/1986 | EP0176287A1 Gas-moving device |
| 03/26/1986 | EP0175394A1 Centrifugal pump with a shift seal housing |
| 03/26/1986 | EP0175393A1 Centrifugal pump with impeller-adjusting means |
| 03/26/1986 | EP0175229A2 Cross-current ventilator |
| 03/05/1986 | EP0172900A1 Plant for the transport and/or mixture of gas. |
| 03/04/1986 | US4573869 Blower |
| 01/02/1986 | EP0166158A1 Transverse-flow fan |
| 12/27/1985 | EP0165684A1 Pump |
| 12/10/1985 | CA1197685A1 Cantilevered fan shaft support assembly |
| 11/05/1985 | US4551078 Scroll-type fluid displacement apparatus with angular offset varying means |
| 10/01/1985 | CA1194461A1 Multi-stage centrifugal compressor |
| 09/24/1985 | CA1194009A1 Vented compressor inlet guide |
| 09/03/1985 | US4538963 Impeller for cross-flow fan |
| 08/29/1985 | WO1985003745A1 Plant for the transport and/or mixture of gas |