Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04D - Non-positive-displacement pumps › F04D 17 - Radial-flow pumps specially adapted for elastic fluids, e.g. centrifugal pumps; Helico-centrifugal pumps specially adapted for elastic fluids
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)
10/2003
10/15/2003CN1124417C Motor wind blower and motor dust cleaner thereof
10/14/2003US6632071 Blower impeller and method of lofting their blade shapes
10/14/2003CA2276592C Improved heat gun fan assembly
10/08/2003EP0837989B1 A rotor
10/08/2003CN1447031A Device and method enabling noise minimization of blower filter
10/02/2003US20030185667 Pump embodied as a side channel pump
09/2003
09/30/2003US6626639 Vacuum pump
09/25/2003WO2003078845A1 Vacuum pumps with improved impeller configurations
09/25/2003US20030180144 Blower for forcing hot air out of a computer
09/24/2003CN1444703A Small turbo compressor
09/17/2003CN1443283A In-line centrifugal fan
09/17/2003CN1443282A Arrangement for multi-stage heat pump assembly
09/16/2003US6619909 Casing treatment for a fluid compressor
09/16/2003US6619072 Turbocompressor and refrigerating machine
09/12/2003WO2003074882A1 Electrical aspirating assembly
09/11/2003US20030168064 Double ended blower and volutes therefor
09/09/2003US6618213 Rotary optical filter apparatus integrated with cooling fan and illumination optical system
09/09/2003US6616421 Direct drive compressor assembly
09/04/2003WO2003072946A1 A centrifugal compressor
09/03/2003CN1440492A Ventilating device and building therewith
09/02/2003US6612804 Swirling compressor
08/2003
08/28/2003WO2003071138A1 Pump using waste tire
08/28/2003US20030159803 Ventilating device and a building comprising such a ventilating device
08/28/2003CA2373905A1 Twin centrifugal compressor
08/20/2003CN1437503A Gas separation operated by splitting airflow centrifugal turbo machine
08/20/2003CN1118629C Fluid machinery, flange of fluid machinery and producing method thereof
08/19/2003US6607351 Vacuum pumps with improved impeller configurations
08/05/2003CA2714869A1 Oven and methods for operating same
07/2003
07/31/2003US20030143076 Swirling compressor
07/30/2003CN1432415A Double-headed insufflator and its volute
07/24/2003US20030138317 Casing treatment for a fluid compressor
07/23/2003CN1115527C Flow stabilizer for transversal fan
07/23/2003CN1115523C DC blower
07/23/2003CN1115490C Two-stage centrifugal compressor
07/23/2003CN1115488C Friction vacuum pump with stator and rotor
07/16/2003CN1429993A 气阀装置 Valve device
07/15/2003US6592451 Fan unit
07/15/2003US6592340 Control system for a vacuum pump used for removing liquid and a method of controlling said pump
07/15/2003US6592329 Electric blower and vacuum cleaner using it
07/15/2003US6592059 Foreign matter entanglement-preventing device in working engine
07/09/2003EP1247024B1 A method of improving the performance of heat-pump installations for making ice
07/08/2003US6589013 Fluid flow controller
07/03/2003US20030121640 Heating and/or air conditioning system
07/02/2003EP1322865A1 Mixed flow and centrifugal compressor for gas turbine engine
07/02/2003CN1427182A Diffusor structure of vortex compressor
06/2003
06/26/2003WO2003052276A1 Compressor unit with control system
06/26/2003US20030120389 Robotic vacuum cleaner
06/26/2003CA2470046A1 Compressor unit with control system
06/25/2003EP1321721A1 Air conditioner
06/25/2003EP1321678A1 Tangential fan cutoff
06/25/2003EP1320685A1 Multi-stage impeller
06/25/2003EP1320684A1 Pump embodied as a side channel pump
06/25/2003EP1017944B1 Compound pump
06/25/2003CN1426511A Blower especially for ventilating electronic devices
06/19/2003US20030113215 Reverse rotation preventing structure of centrifugal compressor
06/18/2003EP1319131A1 Compound friction vacuum pump
06/18/2003EP1319130A1 Turbomolecular vacuum pump with rows of rotor blades and rows of stator blades
06/18/2003CN2556398Y Miniature evacuator
06/17/2003US6579078 Multi-stage centrifugal compressor driven by integral high speed motor
06/11/2003EP1318307A1 Double-ended blower and volutes therefor
06/11/2003EP1078166B1 Friction vacuum pump with a stator and a rotor
06/10/2003US6575695 Centrifugal blower and power working machine
06/05/2003WO2003046385A1 Centrifugal turbine for breathing-aid devices
06/04/2003EP1317051A1 Assembly of rotatable members
05/2003
05/28/2003EP1314589A2 Heating and/or air-conditioning system
05/28/2003CN2553147Y Water-ring vacuum circulating treatment device without heat exchanger
05/28/2003CN1420842A Micromachines
05/22/2003WO2003042545A1 High-pressure fan
05/22/2003US20030095349 Rotary optical filter apparatus integrated with cooling fan and illumination optical system
05/21/2003EP1311315A1 Dual-pressure blower for positive air pressure device
05/20/2003US6565315 Rotation device
05/20/2003CA2287330C Tangential fan cutoff
05/15/2003WO2003040567A1 Two stage electrically powered compressor
05/08/2003US20030084900 Respiratory assistance apparatus with two-stage turbine
05/07/2003CN2549218Y Two-functional pump for aeration and suction
05/01/2003US20030082059 Compact molecular-drag vacuum pump
04/2003
04/30/2003DE20301723U1 Ventilator fan for electronic equipment has straight blades
04/30/2003CN2547917Y Stacked air pump
04/24/2003US20030077177 Stator blading of return channels for two-dimensional centrifugal stages of a multi-stage centrifugal compressor with improved efficiency
04/24/2003US20030077175 Blower especially for ventilating electronic devices
04/23/2003EP1304486A2 Stator blading for centrifugal compressors
04/23/2003CN1106507C Sirocco fan
04/17/2003WO2003031825A1 Multi-stage centrifugal fan
04/17/2003WO2002068826A3 Fluid flow controller
04/16/2003EP1302666A1 Two stage blower in particular for breathing aid apparatus
04/16/2003EP1301748A2 A ventilating device
04/16/2003CN2545401Y Transverse hung electric fan
04/16/2003CN1410680A 涡轮压缩机 Turbo Compressor
04/15/2003US6547517 Fluid impeller
04/08/2003US6543449 Medical ventilator
04/03/2003WO2003026474A2 Robotic vacuum cleaner
04/03/2003US20030062045 Medical ventilator
04/02/2003CN1104567C Multi-stage centrifugal compressor, impeller and production method of same
03/2003
03/27/2003WO2003025400A1 A molecular drag pump
03/27/2003US20030060928 Robotic vacuum cleaner
03/27/2003US20030059315 Turbo compressor
03/27/2003US20030059299 Turbo compressor
03/26/2003EP1295039A1 Arrangement for multi-stage heat pump assembly
03/26/2003CN1103873C Motor cooling structure for turbo compressor
03/20/2003WO2003023290A1 Blower
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