Patents for F03B 7 - Water wheels (847) |
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08/20/2002 | US6434941 Ordinary temperature heat engine |
08/13/2002 | US6431821 High torque impulse turbine |
07/18/2002 | WO2002055876A1 Bladed water wheel |
07/03/2002 | CN2498372Y Power station by running water in river |
03/07/2002 | DE10040940A1 Water wheel to produce energy has each stage with at least one blade axis on at least one radial and another blade axis on secant parallel to radial |
02/20/2002 | EP1180213A1 Generation of energy with fluid |
12/05/2001 | CN2463555Y Automatic power supply unit for flow-adjustable water heater |
10/24/2001 | CN1073487C In-situ welding method for assembling split wheels of large-scale mixed turbine |
10/10/2001 | CN1316588A Electric generating ship using regenerated energy |
08/02/2001 | WO2001055589A1 Habitat hydro scheme |
08/02/2001 | CA2398762A1 Habitat hydro scheme |
07/19/2001 | DE10101261A1 Water wheel to produce mechanical or electrical energy, roll-form body complete with blades and bearing of which is lighter than water |
06/12/2001 | US6246125 Portable wind and hydro electric generating system |
05/23/2001 | CN1296125A Vertical axle movable blade type energy-collecting impeller |
04/03/2001 | US6210113 Water wheel turbine for water power stations |
03/28/2001 | CN1289008A Enerlgy reusing power mechanism for hydroelectric station |
03/27/2001 | US6208037 Waterwheel-driven generating assembly |
03/27/2001 | US6206630 High torque impulse turbine |
03/07/2001 | CN2422490Y Sealing device of mainshaft for horizontal water turbine |
01/11/2001 | DE19933467A1 Vane rotor for energy generation, e.g. water mill, windmill, etc. has rotor blades with plates to form closed surface on front and open surface on back of blade |
01/11/2001 | DE19932337A1 Toothed roller water wheel comprises a rotating roller positioned on a rigid axis, guiding pipes for receiving the axis on its outer sides, and a current generator |
11/22/2000 | CN2407151Y Electric power generator in river |
11/09/2000 | DE19919671A1 Transportable water wheel or turbine arrangement for temporary installation in a river bed to harness hydro-power comprises a water wheel or turbine, mounted on a base |
09/28/2000 | WO2000028210A9 Generation of energy with fluid |
05/18/2000 | WO2000028210A1 Generation of energy with fluid |
05/18/2000 | CA2350752A1 Generation of energy with fluid |
05/11/2000 | DE19850948A1 Power generating unit with an under-driven water wheel comprises a trough with a horizontal bottom section and vertical sides bounding the water stream supplied to the wheel |
03/22/2000 | CN1247942A Vertical-plate and driving band type water turbine |
12/29/1999 | WO1999067531A1 Pipelike power generating apparatus |
12/16/1999 | WO1999064741A1 Room temperature heat engine |
12/16/1999 | WO1999056017A3 High torque impulse turbine |
11/04/1999 | WO1999056017A2 High torque impulse turbine |
10/14/1999 | WO1999051876A1 Water wheel turbine for water power stations |
10/14/1999 | CA2293542A1 Water wheel turbine for water power stations |
10/13/1999 | EP0940576B1 Waterwheel |
10/06/1999 | CN2342124Y Fluid wheel |
09/08/1999 | EP0940576A1 Waterwheel |
08/18/1999 | CN2334118Y Multi-stage compressed-air generating equipment using wave energy as power energy |
08/18/1999 | CN2333832Y High-efficiency hydraulic impeller |
06/02/1999 | CN2321955Y Shaft sealing water-stopping device for hydraulic turbine |
03/16/1999 | US5882143 Low head dam hydroelectric system |
03/10/1999 | CN2310167Y Multi-stage tandem water turbine |
03/10/1999 | CN2310166Y Liquid driven wheel device |
11/11/1998 | EP0530315B1 Free-yaw, free-pitch wind-driven electric generator apparatus |
09/24/1998 | WO1998041757A1 Slide vane vertical water wheel |
09/23/1998 | CN2292170Y Double-body shaped hydroelectric generating ship |
09/02/1998 | CN2290143Y Shipborne river power generation device |
09/01/1998 | US5800123 Bladed pump capstan |
05/26/1998 | US5755553 Water turbine |
04/16/1998 | DE19708636A1 Generator to recover regenerative energy potential in flowing water |
04/09/1998 | WO1998014054A1 Power supply device |
09/04/1997 | DE19607592A1 Flow turbine using air and water flows for electricity production or work power |
02/20/1997 | WO1997006366A1 Waterwheel-driven generating unit |
05/21/1996 | CA2082585C Free-yaw, free-pitch wind-driven electric generator apparatus |
05/02/1996 | DE4438400A1 Counterflow system for making waves |
04/24/1996 | EP0708240A1 Water mill |
04/17/1996 | EP0533934B1 Hydraulic power device |
11/08/1995 | CN2212091Y Arc inclined shape blade water wheel |
09/21/1995 | DE19507149A1 Water force screw conveyor |
08/08/1995 | US5440175 Waterwheel-driven generating unit |
08/02/1995 | CN1106108A In-situ welding method for assembling split wheels of large-scale mixed turbine |
07/04/1995 | US5430332 Method of adjustably damming a flowing body of water |
04/22/1995 | CA2133952A1 Water turbine |
02/09/1995 | DE4340603A1 Device for generating electrical power (electrical energy) |
09/07/1994 | CN1025879C A high-strength sintered composite ceramic body having excellent toughness and errosion resistance and process for preparation thereof |
06/09/1994 | DE4241082A1 Power generating plant utilising flowing waters - consists of one or two bucket wheels, connected to generators |
02/17/1994 | DE4313509A1 Water power generation plant - has water-wheel bolted onto gearbox input shaft flange with gearbox casing bolted to strut on wall |
10/13/1993 | EP0530315A4 Free-yaw, free-pitch wind-driven electric generator apparatus |
08/25/1993 | CA2061768A1 Variable undershot waterwheel |
06/02/1993 | CN1021074C Hydraulic turbine |
06/01/1993 | CA1318569C Liquid driven turbine |
03/31/1993 | EP0533934A1 Hydraulic power device |
03/10/1993 | EP0530315A1 Free-yaw, free-pitch wind-driven electric generator apparatus |
02/18/1993 | DE4143303A1 Cross-flow rotor structure - has blade-ring frame fully integrated in lattice-work structure |
01/12/1993 | US5178518 Free-yaw, free-pitch wind-driven electric generator apparatus |
12/24/1992 | DE4226475A1 Water wheel to generate electricity - has generator, with drive shaft forming wheel hub, and wheel centre of gravity in drive shaft bearing |
10/13/1992 | US5154566 Perfected hydraulic machine preferably for minimum height waterfalls |
10/01/1992 | WO1992016744A1 Hydraulic power device |
08/11/1992 | US5137423 Hydraulic turbine |
07/29/1992 | CN1017640B Energy converter |
07/22/1992 | CA2057814A1 Pump |
04/30/1992 | DE4124983A1 Support structure for cross current drum runner - absorbs bending and torsional forces and uses draw anchors, distance tubes, cross bars and two module plates |
03/26/1992 | DE4029760A1 Rapid exchange coupling for water wheels - is of rhomboidal insert type and is used with drum-type wheels on horizontal shaft |
03/04/1992 | CA2049775A1 Hydraulic turbine |
01/23/1992 | DE4022625A1 Irrigation water supply system for arid regions - uses locally available materials, without engines or wind turbines |
01/01/1992 | CN1057505A High-strength sintered composite ceramic body having excellent toughness and errosion resistance and process for preparation thereof |
11/28/1991 | WO1991018203A1 Free-yaw, free-pitch wind-driven electric generator apparatus |
05/15/1991 | EP0427176A1 Perfected hydraulic machine preferably for minimum height waterfalls |
05/07/1991 | CA2029223A1 Perfected hydraulic machine preferably for minimum height waterfalls |
11/27/1990 | US4973856 Hydroelectric generator system |
06/07/1990 | DE3938748A1 Water-wheel with circular blades - which pass through curved cylinder through which water flows |
05/08/1990 | US4923368 Liquid driven turbine |
08/17/1989 | DE3803147A1 Apparatus for generating electrical energy from water from water-treatment plants |
05/11/1989 | DE3736638A1 Underwater energy conversion apparatus |
05/11/1989 | DE3735841A1 Device for generating electrical energy at barrage weirs with locks |
05/10/1989 | CN2037397U Reversible waterpower machine |
04/26/1989 | CN1032535A High strength sintering composite ceramic body with fine toughness and resist erosion function |
03/22/1989 | CN2034625U Automatic control wind-driven generator |
02/23/1989 | DE3726275A1 Floating small water power stations |
01/10/1989 | CA1248430A1 Energy converter |