Class 415/120 - CENTRIPETAL PUMP

Subclass of Class 415 - Rotary kinetic fluid motors or pumps
Definition: Apparatus comprising a pump* in which the working
No. of patents: 27
Last issue date: 06/23/2009

Number	Title	Issue Date
7549837	Impeller for centrifugal pump A centrifugal pump includes a rotatable shaft; and at lest one impeller attached to the rotatable shaft, wherein the at least one impeller includes a top plate, and a bottom plate, and a plurality of vanes enclosed between the top plate and the bottom plate, wherein...	06/23/2009
7290984	Multistage pump A centrifugal pump includes plural pump stages, each comprising an impeller assembly, a stationary disc assembly and a diffuser assembly, all disposed about an impeller shaft. A floating impeller hub seal is supported by a diffuser assembly to minimize fluid recircu...	11/06/2007
7195451	Radial out-flowing rotary ram-in compressor A radial out-flowing rotary ram-in compressor for use in gas turbine engines and the like, having a plurality of vanes attached to discs, with the opposing parts of each two adjacent vanes defining a feeding channel in-between. In operation, working gases are rammed...	03/27/2007
6892844	Coolant pump for snowmobile engine A coolant pump for an engine includes a pump case main body and a pump drive shaft journaled therein. The pump drive shaft has a plurality of blades mounted thereon and is rotatable about a pump drive shaft axis. The coolant pump also includes a partition member and...	05/17/2005
6877951	Rotary ram-in compressor A rotary ram-in compressor for use in gas turbine engines and the like, having a plurality of vanes attached to discs, with the opposing parts of each two adjacent vanes defining a feeding channel in-between. In operation, working gases are rammed through the feedin...	04/12/2005
6875111	Intermediate shaft assembly An intermediate shaft assembly for an automotive transmission wherein hydraulic fluid intake ports in the rotating shaft assembly are designed to provide increased hydraulic fluid flow and improved lubrication to mating components served by the shaft lubrication cir...	04/05/2005
6442936	Single stage or multi-stage compressor for a turbocharger A turbocharger for an internal combustion engine has a compressor operable as a single stage or multi-stage compressor. A first compressor stage includes a first compressor wheel carried by a shaft, an axially extending first inlet and a radially extendin...	09/03/2002
6418723	Low pressure gaseous fuel system A low pressure fuel system for a gaseous fuel internal combustion engine in which the source of gaseous fuel is at a pressure lower than the intake manifold pressure of the internal combustion engine. The gaseous fuel is inducted into the interstage duct ...	07/16/2002
6345503	Multi-stage compressor in a turbocharger and method of configuring same A method of configuring a compressor in a turbocharger for use in an internal combustion engine is provided with the steps of: providing a multi-stage compressor including a first compressor wheel carried by a shaft, an axially extending first inlet and a...	02/12/2002
6301889	Turbocharger with exhaust gas recirculation A turbocharger, particularly suitable for use in an internal combustion engine, recirculates exhaust gas from the turbine to an interstage duct area between two compressor wheels of a multi-stage compressor. The turbocharger includes a rotatable shaft; a ...	10/16/2001
6013140	Laser hardening of screw forms A harden screw form and methods of making same for use with, for example, positive displacement rotary axial screw pumps are disclosed. The methods include the use of a CNC machine with a laser and a special, newly developed optic for selectively hardenin...	01/11/2000
5344678	Shaft sleeve made of ceramics A shaft sleeve is made of ceramics and provided in confrontation with a stationary sliding member in a sliding bearing or plain bearing. The shaft sleeve made of ceramics comprises a cylindrical body made of ceramics and having a circular outer surface an...	09/06/1994
5110483	Separation of particles adsorbed on carrier material A method is described according to which composite particles made up of carrier magnetite particles with calcium carbonate and calcium phosphate flakes adhered thereto and present in a fluid suspension are separated into particles and flakes. To accomplis...	05/05/1992
5011631	Turbo-jet aerator This invention relates to a turbo-jet aerator and in particular to one mainly including a motor, a turbo-jet means and a stirring mechanism by means of which when the motor is turned on, the turbine and the stirring mechanism will be rotated and air in th...	04/30/1991
4914841	Dredging with a pressurized, rotating liquid stream An apparatus for dredging using a pump which forms a highly pressurized, rotating stream of liquid which is directed down the inlet conduit to a discharge and the momentum and energy of the rotating stream is transferred to the solids and liquids, suspend...	04/10/1990
4815929	Eddy pump A method and apparatus for pumping liquid includes a pump casing with a vortex generating member which generates a swirling column of liquid which swirls about a central axis and which is directed through the pump inlet to discharge into the ambient body ...	03/28/1989
4792275	Pump construction A pump is provided within a vortex generator having a plurality of equally spaced blades which rotate in a pump casing to form a nucleus of fluid in the shape of an ellipsoid having an upper tapered end and a lower tapered end with a thicker central secti...	12/20/1988
4779575	Liquid friction heating apparatus Liquid friction heating apparatus includes a pump rotor and an impeller rotor in a liquid reservoir. As the pump and impeller are rotated they impart frictional heat to the liquid. Further, the pump at all times delivers liquid to the inlet of the impelle...	10/25/1988
4776753	Method of and apparatus for pumping viscous fluids A method and apparatus for pumping liquid includes a pump casing with a vortex generating member which generates a swirling column of liquid which swirls about a central axis and which is directed through the pump inlet to discharge into the ambient body ...	10/11/1988
4596511	Eddy pump A method and apparatus for pumping liquid includes a pump casing with a vortex generating member which generates a swirling column of liquid which swirls about a central axis and which is directed through the pump inlet to discharge into the ambient body ...	06/24/1986
4302147	Lightweight radial flow fluid machine with fluid bearing sealed flexible blades A lightweight fully shrouded radial flow fluid machine comprising a rotor having blades with flexible sides and a closed edge and a housing having opposed walls closely adjacent the flexible sides of the blades, the rotor blades being shaped to coact with...	11/24/1981
4293278	Fluid-flow machine Disclosed is a fluid-flow machine comprising at least one disc-shaped rotor provided with flow channels for a flow medium. The intake openings of the flow channels are disposed on one side of the rotor, while the respective exit openings are located at th...	10/06/1981
4082477	Compressor having two or more stages In order to raise the degree of compression without unduly increasing the dimensions a compressor having at least two stages includes a first centripetal stage and a last centrifugal stage mounted upon the same shaft. The diameter at the centripetal stage...	04/04/1978
4070824	Integrated flow turbine engine A gas turbine having a rotor serving as both compressor and turbine, and utilizing a plurality of non-rotating arcuate members disposed in spaced relation about the periphery of the rotor. These arcuate members are involved in the directing of the flow of...	01/31/1978
4029431	Fluid-flow machine A fluid-flow machine. At least one substantially disc-shaped rotor has a plurality of fluid-flow channels therethrough. Each fluid-flow channel comprises rectangular shaped inlet and outlet openings on opposite sides of the rotor disposed at different dis...	06/14/1977
4007996	Turbine engine and pump A turbine or pump having a housing receiving a rotor journaled therefrom by a central shaft with the housing including a tangential inlet and a tangential outlet extending in opposed directions with the rotor including a central partition in the housing a...	02/15/1977
3941499	Compressor having two or more stages In order to raise the degree of compression without unduly increasing the dimensions a compressor having at least two stages includes a first centripetal stage and a last centrifugal stage mounted upon the same shaft. The diameter at the centripetal stage...	03/02/1976

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Class 415/120 - CENTRIPETAL PUMP