Match Document Document Title
6846159 Chamfered attachment for a bladed rotor  
Rotor blades 40 for a bladed rotor feature a chamfered attachment 44 that improves the energy absorption capability of a snap ring 60 used as one component of a blade axial retention system. The...
6846155 Fuel pump  
A fuel pump improved in pump efficiency is provided. An impeller rotating in a pump casing has an approximately disk-shaped configuration with a group of recesses formed in a region extending...
6840741 Leading edge slat airfoil for multi-element rotor blade airfoils  
A leading edge slat for multi-element rotor blade applications which provide multiple benefits and provide design direction which has heretofore been unexplored.
6837760 Method for modifying engine loading through changing of propeller blade shape by bending a propeller blade edge to modify the section camber and pitch of the blade, and propellers made using the same  
The present invention is directed to a method of altering the pitch of a propeller through localized bending of its blades. To alter the propeller's pitch the camber of at least one of its blades...
6835045 Rotor blade protector  
A protector for protecting aircraft, particularly helicopter rotor blades, from absorbing the sun's infrared rays and the accompanying heat build-up in order to keep adhesive material between spar...
6802695 Turbines and their components  
An axial flow gas turbine comprises a turbine and a turbine exhaust section. The turbine comprises a turbine nozzle containing a low pressure turbine stage having an annular row of stator vanes...
6802474 Advanced high turning compressor airfoils  
In a high turning airfoil capable of being suitably applied to each of blades constituting a blade row of an axial flow-type compressor, both of an intrados generating a positive pressure and an...
6798080 Hydro-power generation for a water treatment system and method of supplying electricity using a flow of liquid  
A hydro-power generation system for use in conjunction with a water treatment system is disclosed. The embodiments of the hydro-power generation system include an impeller rotatably positioned in...
6790007 Wind turbine structure  
A vertical axis wind turbine including a wind turbine which depends on a vortex down wind of the turbine enhancing the air flow past the vertical turbine. The vertical axis wind turbine structure...
6752595 Propeller type windmill for power generation  
A plurality of wind turbine blades (3) are distributed equiangularly within a plane perpendicular to a horizontal rotating shaft (2) and around a hub (1) provided on the horizontal rotating shaft...
6715991 Rotor blade for centrifugal compressor with a medium flow coefficient  
A cylindrical blade for a rotor of the purely radial type of a centrifugal compressor with a medium flow coefficient comprises a first surface (3) of the pressure side and a second surface (5) of...
6707181 Alternator fan  
An alternator fan having a generally disc-shaped body with opposed first and second faces. The body includes a plurality of ribs that define raised peaks on the first face and recessed valleys on...
6702552 Impeller having blade(s) conforming to the golden section of a logarithmic curve  
A single or multi-bladed rotor for use with a fluid flow generator or reactor, the rotor comprising a central hub which is adapted to be mounted to a rotatable shaft, the rotor further comprises...
6692231 Molded fan having repositionable blades  
The present invention provides a fan having a molded, substantially non-metallic hub and a plurality of fan blades attached thereto. The fan blades can be rotationally indexable relative to the...
6688849 Impeller and propeller  
An improved impeller which facilitates greater linear movement of a media with less torque; and which accordingly, consumes less power. A blade portion of the impeller has a front media...
6672840 Fan for condenser of refrigerator  
The invention relates to an axial flow fan for condenser in a refrigerator for enhancing efficiency and lowering noise, in which the number of blades is three, the diameter of a hub is 23.3±5% of...
6672059 Vane design for use in variable geometry turbocharger  
Improved vanes of this invention are constructed for use within a variable geometry turbocharger assembly. Each vane comprises an inner airfoil surface oriented adjacent a turbine wheel, and an...
6659724 Axial fan for vehicles  
Front edges 212b of blades 212 are so constituted as to be deviated toward the upstream side in the air stream beyond an axial end surface 211a, as viewed from a direction at right angles to the...
6659721 High efficiency ceiling fan blades  
Ceiling fan blades for maximizing air flow at operational speeds of up to approximately 200 revolutions per minute(rpm). The blades have a positive twist at the tip ends of approximately 5 degrees...
6638009 Impeller of liquid pump  
An impeller for liquid pump that is capable of improving pump efficiency by modifying a shape of the impeller. An impeller is rotatably provided in a pump section of a fuel pump. A plurality of...
6616409 Method of designing an Impeller blade  
Impeller blades and a method for designing impeller blades wherein the blades comprise a plurality of specially designed airfoil sections, each section having along substantially the entire length...
6616411 Fan blade for agricultural combine cooling system  
A passive fan blade for a cooling package for use in an agricultural combine comprises a generally rectangular member having an axis, a central mounting area and two opposed legs, each leg having...
6607847 Bonded niobium silicide and molybdenum silicide composite articles using brazes  
An article, such as an airfoil having a melting temperature of at least about 1500° C. and comprising a first piece and a second piece joined by a braze to the first piece. The first piece...
6595752 Radial impeller for a centrifugal pump  
An improved impeller for a centrifugal pump is disclosed. The impeller is particularly suited for use in pumps in which a high head is required and in which only low shear forces must be applied...
6595744 Automotive fan assembly with flared shroud and fan with conforming blade tips  
High efficiency and low noise is achieved in an automotive engine-cooling fan assembly by flaring the inlet to the shroud barrel, and shaping the tips of the fan blades to conform to the shape of...
6579064 Blade for a cooling fan  
A blade for a cooling fan is formed on an outer periphery of a rotor of the cooling fan and is curved. The blade has a convex outer surface and a concave inner surface. A curved angle of the blade...
6565990 Bonded niobium silicide and molybdenum silicide composite articles and method of manufacture  
An airfoil having a melting temperature of at least about 1500° C. and comprising a first piece and a second piece joined at a bonded region to the first piece by a diffusion bond. The first piece...
6565323 Propeller fan  
A propeller fan adapted to prevent abnormal air flow to thereby increase discharge of air flow but to decrease noise, the fan including a plurality of vanes, each vane fixed at a hub secured at a...
6561459 Method of fabricating a wing of composite material  
A wing of composite material has an upper skin, a lower skin and a plurality of intermediate spars arranged between the upper and the lower skin. The intermediate spars extend from roots to tips...
6544010 Axial flow fan with brushless direct current motor  
An axial flow fan with a BLDC motor for electronic appliances is disclosed. The axial flow fan of this invention is optimally designed in axial height of both the blades and the fan housing, the...
6533545 Moving turbine blade  
A moving turbine blade is disclosed. When an angle, which a tangent to a dorsal surface portion at a front edge of the moving turbine blade makes with a straight line perpendicular to a rotating...
6513757 Wing of composite material and method of fabricating the same  
A wing of composite material has an upper skin, a lower skin and a plurality of intermediate spars arranged between the upper and the lower skin. The intermediate spars extend from roots to tips...
6503067 Bladeless turbocharger  
A bladeless turbocharger is disclosed for use with an internal combustion engine. The apparatus includes a drive shaft engaged with a bearing assembly that has a turbine driven by the exhaust gas...
6503058 Air foil configuration for wind turbine  
A balancing of aerodynamic optimization and structural optimization provides a wind turbine airfoil having substantially improved performance characteristics. Mathematic modeling yields maximum...
6497385 Rotor blade with optimized twist distribution  
A rotor blade has a local geometric twist angle θ=ƒ(r/R), with R being the blade span and r being the distance along the blade span from the axis of rotation. The blade has an inner region between...
6488484 Hydraulic pump with permanent-magnet motor having a preset direction of rotation  
A hydraulic pump with permanent-magnet motor having a preset direction of rotation, comprising a permanent-magnet motor connected to an impeller with curved vanes which is rotatably accommodated...
6474940 Turbo molecular pump  
A turbo molecular pump has a rotor having rotor blades arranged in multiple stages. Each of the rotor blades has a proximal end fixed to the rotor and a distal end. Stator blades are arranged in...
6461109 Third-stage turbine nozzle airfoil  
The third-stage nozzles have vanes comprising airfoil profiles substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in inches in Table I wherein Z is a...
6461105 Variable vane for use in turbo machines  
With a turbo machine comprises a trunnion portion and an airfoil portion, the airfoil portion is defined by a leading edge, a trailing edge, and a pair of side edges. One or more of the side edges...
6457953 Axial flow fan  
An axial flow fan for cooling electronic components comprising a plurality of blades for cooling electronic components wherein the blades comprise a plurality of specially designed airfoil...
6457671 Funneled rotary foil  
A funnel strip is added to a rotary airfoil, which utilizes the Bernoulli principle to increase the velocity of air over the suction side of the rotating airfoil to increase the lift. The device...
6446547 Food processing appliance  
A food processor that is operable in a dough mixing mode and in at least one other mixing mode. When in the dough mixing mode, the mixing impeller is driven at a continuous speed in the range of...
6447251 Fan blade  
The fan blade is used for a cooling fan assembly to be coupled to the shaft of a motor for rotation about an axis. The fan blade has a curved leading edge and a curved trailing edge with an outer...
6443691 Feed pump  
In an impeller of a feed pump designed as a side channel pump, each of the vane chambers are divided into two sectors which are arranged in an undercut-free design relative to a direction...
6431837 Stitched composite fan blade  
A hollow core fan blade for a gas turbine engine, having stitched composite skins and substructure, is fabricated using a resin transfer molding approach which results in a damage tolerant and...
6428277 High speed, low torque axial flow fan  
An axial flow fan 10 for producing airflow through an engine compartment of a vehicle includes a hub rotatable 12 about an axis 22. An annular band 16 is concentric with the hub and spaced...
6419189 Hot ruddervator apparatus and method for an aerospacecraft  
A ruddervator for an aerospacecraft. The ruddervator is formed by a plurality of airfoil sections nestably disposed in side by side fashion and supported by a pair of titanium box beam frame...
6413050 Friction damped turbine blade and method  
A friction damped turbine blade is disclosed. The turbine blade is formed of segments configured so as to form an assemblage corresponding to the airfoil shaped body. Each of the segments is in...
6402475 Blade of a ceiling fan  
A blade for a ceiling fan includes at least one raised portion formed on the surface of the blade with a chamber in the raised portion of the blade. The raised portion will reduce the drag when...
6394754 Axial flow fan  
An axial flow fan, used for cooling the compressor and the condenser within the machine compartment of a refrigerator, is disclosed. This axial flow fan delivers an adequate volume of air to the...