Matches 1 - 50 out of 190 1 2 3 4 >
Match Document Document Title
7618239 Multi-blade fan for air-cooled engine  
In a multi-blade fan for an air-cooled engine, by defining the inlet angle β 1 and the angle β′ 2 to make the sum thereof less than 80° (preferably defining β 1 as 32° and β′ 2 as...
7517193 Centrifugal compressor and manufacturing method for impeller  
On a suction surface side of a blade in an impeller, a convex portion is formed to assume a curved line from a front edge portion to a throat portion substantially in the middle in a radial...
7481625 Radial-flow turbine wheel  
A radial-flow turbine wheel is provided. The radial-flow turbine wheel includes a hub having an outer radius gradually increasing from a front end to a rear end, a rear periphery of the hub being...
7481616 Centrifugal fan, cooling mechanism, and apparatus furnished with the cooling mechanism  
In a centrifugal fan the diameter of the impeller is rendered less than 20 mm, yet by rotating it under rotational conditions in which the centrifugal force along the impeller periphery is 10,000...
7478990 Bracket/spacer optimization in bladeless turbines, compressors and pumps  
A bracket/spacer design in a bladeless turbine, compressor or pump comprising of a hub for axial mounting and one or more arms connected to the hub. This bracket/spacer configuration contributes in...
7476081 Centrifugal compressing apparatus  
In a centrifugal compressing apparatus, a height of a blade of an impeller is made to decrease gradually from a front edge thereof to a rear edge thereof, and a rate of change of the height of the...
7381027 Fan motor  
A fan motor having a small thickness and its impeller's blades formed to have a longer length in the diametrical direction than a width in the axial direction. Since the blade of the fan motor has...
7318703 Impeller for a pump  
An impeller for a pump, particularly for a cooling water pump of an internal combustion engine, includes a hub ( 11 ), a cover disc ( 14 ) which is disposed on the intake side and is provided with...
7264443 Centrifugal water pump  
A pump includes a housing defining an internal chamber having an axial inlet passage, a generally radial passage with an outlet to a volute. A rotatable impeller, disposed within the chamber, has a...
7246997 Integrated high efficiency blower apparatus for HVAC systems  
An integrated centrifugal blower wheel for a heating, ventilation and air conditioning (HVAC) blower unit includes a first blade support, a second blade support, and a plurality of S-shaped blades...
7232288 Hydraulic submersible mud pump  
Apparatus 10 discloses a submersible hydraulic powered pump for removing matter such as liquid, abrasive particulate, slurries or mixtures 12 , from a sump or container. The pump has a housing ...
7223075 Turbine wheel for driving rapidly rotating tools  
A turbine wheel for driving rapidly rotating tools, in the form of a circular disk or ring, configured for mounting so as to be rotatable about an axis. Disposed thereon in circular formation are...
7220106 Francis wheel and hydraulic machine comprising one such wheel  
A Francis runner that includes a crown, a band and blades which extend between the crown and the band. An angle (β 24 ) between a linear speed (U, D 224 ) of one of the blades and a median of the...
7195459 Francis turbine  
A Francis turbine with an improved shape of blades, which can reduce a circumferential velocity component generated in the flow downstream of the blades in a condition of a partial load operation,...
7189062 Centrifugal impeller  
A centrifugal impeller particularly for a turbo-charger includes a circular disc member, a boss portion formed at a central portion of the disc member and having a central through hole into which a...
7168923 Alternator fan  
The invention is a fan for an alternator adapted to be coupled in rotation to the alternator rotor, and being of the type comprising a wheel part and a plurality of fan blades ( 47, 48 ) extending...
7147433 Profiled blades for turbocharger turbines, compressors, and the like  
A rotor and an apparatus including a rotor are provided. For example, the apparatus can be a turbine or compressor having a housing in which the rotor rotates while gas is circulated therethrough....
7144217 Molten metal pump particle passage system  
A molten metal pump system which includes a particle relief passageway between the vanes on the impeller and the pump base, the particle relief passageway being a predetermined size to allow...
7128534 Francis turbine  
A Francis turbine with a improved shape of blades to reduce the secondary flow around the blades and improve the hydraulic efficiency is provided. A Francis turbine comprises a rotating shaft, a...
7121798 Radial fan wheel for transporting cooling air for an electric machine  
In a radial fan wheel for supplying cooling air for an electrical machine, with a number of fan blades ( 16 ) attached along the circumference of the fan wheel ( 10 ) that have arc-shaped blade...
7114925 Impeller vane configuration for a centrifugal pump  
A pump impeller for use in industrial pumps of the centrifugal type is disclosed in which the vanes of the pump impeller are particularly configured to maintain pumping efficiency as the vane wears...
7108482 Centrifugal blower  
The present invention provides a centrifugal fan including a hub adapted for rotation about a central axis and a plurality of blades arranged about the central axis and coupled for rotation with...
7086837 Centrifugal blower fan  
It is the object of the present invention to provide a centrifugal blower fan capable of reducing a noise in an operating rotational speed range without degradation in blàwer performance. A...
7070389 Turbofan and method of manufacturing the same  
A method of manufacturing a turbofan, which facilitates a manufacturing process and reduces a defective fraction of products during the manufacturing process by providing joining portions of the...
7063508 Turbine rotor blade  
A trailing edge of a turbine rotor blade is formed so that a deflection angle of a blade surface in a downstream side of a maximum blade thickness portion is a predetermined value or less, by...
7063125 Fan penetration feature for in-vehicle testing  
A fan penetration fixture consisting of a threaded shaft and a lock nut design. The fixture is designed to take the place of the fan clutch on a fan drive assembly in the vehicle being tested for a...
7033137 Vortex blower having helmholtz resonators and a baffle assembly  
A blower includes a blower housing having a chamber, an impeller rotatably received in the chamber, the impeller having a plurality of blades; and at least one resonator ring associated with one of...
7021891 Micro-impeller miniature centrifugal compressor  
A back-to-back double-flow bi-directional thrust-balanced micro-impeller for use in optimized compression cycles of small volumetric flow rates is provided. The back-to-back micro-impeller is a...
6986644 Hard material impeller and methods and apparatus for construction  
Methods of producing impeller castings from very hard materials are disclosed in which the formation of a selectively configured core produces an impeller casting that does not need to be machined...
6971846 Centrifugal blower  
In a centrifugal blower, a casing forms a scroll duct on the outer periphery of a centrifugal fan. The scroll duct includes a motor scroll duct wall extending from the periphery of a motor casing...
6948912 Heat dissipation device and its impeller thereof  
A heat dissipation device and a blade structure thereof are employed to increase input air volume, A new impeller, mounted on the driving means, includes a hub and a plurality of rotor blades...
6942460 Vane wheel for radial turbine  
A radial turbine impeller is provided, comprising a circular main disk provided with a plurality of blades, each having a negative pressure surface and a positive pressure surface; scallops being...
6913444 Thin-form centrifugal fan  
A small, lightweight and inexpensive thin-form centrifugal fan having a first moving blade; a second moving blade; and a stationary blade disposed between the first moving blade and the second...
6893220 Centrifugal fan  
A centrifugal blower impeller includes a central hub and a plurality of impeller blades. The central hub includes a conical section and an outer edge. The conical section is centered with respect...
6887046 Coolant pump, mainly for automotive use  
An impeller pump with thermostatically adjustable guide vanes is suitable for use as an automotive coolant pump. The pump is driven by a constant speed electric motor, and flow variation is...
6877955 Mixed flow turbine and mixed flow turbine rotor blade  
A mixed flow turbine includes a hub attached to a rotation axis and a plurality of rotor blades. Each of the plurality of rotor blades is attached to the hub in a radial direction, and the hub is...
6877954 Eccentric heat dispensing fans  
A heat dispensing fan includes a hub having a recess defined in a top thereof so as to receive a fan member therein. The recess communicates with a side outlet in the hub and apertures defined...
6846157 Cooling fans  
A cooling fan is characterized in jointing the bottom edges of all the fan leaves of a fan body to a common baseplate closely without any clearance. Therefore, turbulence could be thoroughly...
6824358 Turbo blood pump  
A turbo blood pump having a small size, that is, a small amount of blood to be filled and capable of adjusting and maintaining the slight amount of flow, and a turbo blood pump in which hemolysis...
6805531 Set of split bodies for forming blower fan through hollow-article injection molding process  
A set of split bodies for forming a synthetic-resin blower fan through a hollow-article injection molding process, wherein the blower fan integrally includes a circular base, a cover portion having...
6802693 Vortex attractor with vanes attached to containing ring and backplate  
A vortex generating apparatus has the capability of attracting and removably adhering one or more solid objects. The apparatus comprises an impeller housed within a shell. The vortex attractor...
6773233 Fitting of blades in hydrodynamic machines  
A process of manufacturing a component for a hydrodynamic machine in which the component comprises a base body ( 16 ) and a plurality of blades ( 8 ) which are to be installed on the base body ( 16...
6755617 Method for the early detection of aerodynamic instabilities in a turbomachine compressor  
A method for the early detection of aerodynamic instability in a turbomachine compressor is described which involves collecting and normalizing signals from sensors distributed uniformly around the...
6742989 Structures of turbine scroll and blades  
The improvements are made in the turbine scroll and the turbine blades. The scroll structure for the radial turbines is characterized by the foregoing scroll having a scroll width ratio between the...
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 )...
6712583 Impeller for water pump  
An impeller for a water pump includes an impeller main body composed of a synthetic resin and having a vane member formed around a rotating center portion; and a metal boss in which a circular boss...
6712582 Centrifugal fan  
A centrifugal fan mounted in a laptop computer is assembled to include a casing having an intake opening and a horn-shaped outlet opening for increasing the air outflow, an impeller rotatably...
6685430 Compact centrifugal blower with annular stator  
This invention is characterized by a very compact blower assembly architecture designed to operate at low Reynolds numbers. The assembly includes an impeller with forward-curved blades and a hub...
6666660 Motor-fan assembly for a floor cleaning machine  
A motor-fan assembly for a floor care appliance having an improved working air fan for increased performance and noise reduction, a working air fan housing cover having a plurality of spiral shaped...
6663347 Cast titanium compressor wheel  
A compressor wheel is re-designed to permit die inserts ( 20 ), which occupy the air passage and define the blades ( 4, 5 ) during a process of forming a wax pattern ( 21 ) of a compressor wheel,...
Matches 1 - 50 out of 190 1 2 3 4 >