Class 415/225 - Exit chamber in radial plane axially offset from runner (e.g., sludge pump, etc.)

Subclass of Class 415 - Rotary kinetic fluid motors or pumps
Definition: Device wherein the means comprises a working fluid* flow
No. of patents: 32
Last issue date: 03/06/2012

Number	Title	Issue Date
8128360	Vortex pump with splitter blade impeller A vortex pump impeller utilizes primary blades in combination with splitter blades. An increase in total head is observed through exemplary impellers in a vortex pump, compared to an impeller lacking the splitter blades. Single stage and dual stage pumps utilizing t...	03/06/2012
7063502	Fuel pump A fuel pump prevents pressurized fuel from being pulled into a clearance between an outer circumference face of an impeller and an inner circumference face of a pump case, thereby allowing the delivery of the pressurized fuel from a pump body side to a pump cover si...	06/20/2006
6964553	Port for a fan chamber A port is employed for a fan chamber which defines a volume formed by at least one generally continuous vertical wall connecting a horizontal base wall with an opposing horizontal exit wall. Within the volume is a fan rotatable in a plane generally parallel to a pla...	11/15/2005
6186739	Support for a cooling fan The invention is about an improved support for a cooling fan. The support has a seat for receiving a fan. A plurality of L-shaped arms are securely formed and substantially extend out from the seat, and provided with a first portion parallel to the seat a...	02/13/2001
5769603	Submerged Pump A submerged pump used, for example, in a duplex treating tank for sewage includes a pump casing including an inlet portion, a pump chamber and a discharge portion, and a motor for driving and rotating an impeller provided in the pump chamber. The motor is...	06/23/1998
5518366	Exhaust system for a turbomachine An exhaust system for an axial flow turbomachine having a diffuser comprised of inner and outer flow guides that direct the flow of working fluid from a turbine cylinder to an exhaust housing having a bottom opening, thereby turning the flow 90° from the...	05/21/1996
5486092	Housing for a vortex-flow type pump Upper and lower housing portions combine to define a fluid-working area within the housing, and the portions are dissimilar. The lower housing portion is substantially circular, having a constant radius, whereas the upper housing portion is volute-shaped,...	01/23/1996
5257906	Exhaust system for a turbomachine An exhaust system for an axial flow turbomachine is provided having a diffuser that directs the flow of working fluid from a turbine exit to an exhaust housing having a bottom opening, thereby turning the flow 90° from the axial to radial direction. In t...	11/02/1993
5228829	Method and apparatus for dividing flow of high-consistency fiber suspension A method and an apparatus for dividing the flow of fiber suspensions of the pulp and paper industry in which the fiber suspension is caused to flow into a space uniting the inlet and the outlet flows and in which space a vortex flow is created to prevent ...	07/20/1993
5181841	Sewage pump A sewage pump includes an injection molded thermoplastic upper housing that surrounds an electric motor and its cast iron motor support, except for the bottom wall of the motor support which forms one wall of a vortex volute, the remainder of the volute b...	01/26/1993
5114312	Slurry pump apparatus including fluid housing A slurry pump is provided having an impeller housing with an impeller chamber receiving an impeller having a rotation axis and a plurality of wedge-shaped pockets on a fluid engaging face. A fluid housing is adjacent to and cooperates with the impeller ho...	05/19/1992
5100288	Slurry pump apparatus A slurry pump is provided having an impeller housing with an impeller chamber receiving an impeller having a rotation axis and a plurality of wedge-shaped pockets on a fluid engaging face. A fluid housing is adjacent to and cooperates with the impeller ho...	03/31/1992
5076757	High head centrifugal slicing slurry pump The rotary drive shaft of a centrifugal pump extends vertically through a cylindrical housing and into a casing defining a bowl for the impeller of the pump. A mechanical seal and bearings for the drive shaft are positioned between the pump bowl and the i...	12/31/1991
4917577	High speed centrifugal oxygenator A centrifugal oxygenator pump includes a bottom inlet into an impeller chamber, the bottom inlet having a venturi gas inlet for mixing gas with the in flowing liquid. The impeller chamber is of a frusto-conical shape within which is rotatably mounted a si...	04/17/1990
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
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
4680006	Blower augmentor for power oil and power gas burners A power oil or gas burner having a centrifugal blower that includes a standardized production scroll housing. Within the space available in the scroll housing a narrow-width, large (maximum) diameter squirrel cage rotor is provided, that is offset away fr...	07/14/1987
4676718	Impeller for a pump, especially a vortex pump An impeller for a pump, especially a vortex pump, provided with one or more straight or curved vanes arranged radially. Vortex pumps are used e.g. for pumping sewage, for which purpose they are well adapted. However, a drawback with such pumps known so fa...	06/30/1987
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
4592700	Vortex pump A vortex pump is provided wherein an impeller is of an open type and plural blades are grouped into two or more groups, the axial width of each group of blades being different from the others so that the blades belonging to a certain group extend into a v...	06/03/1986
4588353	Submersible pump A submersible pump especially usable for civil engineering works is provided in which a wear resistant protecting member is disposed at the portion opposing the backside of an impeller shroud to protect that portion from wear due to abrasion by earth and ...	05/13/1986
4575308	Solid materials pump A rotary pump is disclosed for pumping liquid and solid materials carried in suspension therein. The rotary pump comprises an impeller and a housing. The housing forms a swirl chamber and an impeller chamber for receiving the impeller. The impeller is mou...	03/11/1986
4527947	Seal-free impeller pump for fluids containing abrasive materials or the like A submersible impeller pump capable of pumping fluids carrying materials such as sand, stones, sewage, and which requires little or no maintenance is provided. The pump includes a housing having an impeller unit including arcuate vanes, eccentrically moun...	07/09/1985
4475868	Free-flow-pump The free-flow pump has an impeller housing (9, 10) laterally of its free flow chamber (4), and the impeller (6) is located in the impeller chamber (9, 10). The external, radial limiting member (10) of the impeller housing is drawn forwardly into the free ...	10/09/1984
4386886	Adjustable vortex pump A vortex pump which has been converted from a centrifugal pump by interposing an annular spacer between the power frame and casing of the centrifugal pump to provide space for a vortex impeller which has been substituted for the centrifugal impeller. An a...	06/07/1983
4338062	Adjustable vortex pump A vortex pump which has been converted from a centrifugal pump by interposing an annular spacer between the power frame and casing of the centrifugal pump to provide space for a vortex impeller which has been substituted for the centrifugal impeller. An a...	07/06/1982
4135852	Centrifugal slurry pump and method A multiple stage centrifugal pump for the handling of slurries. At each stage the slurry enters and is centrifugally discharged from an unobstructed chamber in which a vortex is created by an impeller disposed in a cavity located above the chamber. The va...	01/23/1979
4131389	Centrifugal compressor with improved range The subject compressor is of the centrifugal type having a rotatable impeller with hub and shroud sides and a diffuser surrounding the impeller, the diffuser having spaced side walls with vanes spaced around the impeller to provide passages for receiving ...	12/26/1978
4076179	Centrifugal sewage pump This invention relates to a centrifugal sewage pump of a torque flow type having a hollow depressed backward curve in front of a shroud of an impeller, in which an outer periphery portion of a vane is projected into a water passage for the purpose of impr...	02/28/1978
3936240	Centrifugal-vortex pump A pump having centrifugal and vortex impellers mounted on a common rotor member. Impellers are mounted on opposite sides of rotor and make maximum use of rotor diameter. Fluid follows a serial path through the centrifugal and vortex impellers. The vortex ...	02/03/1976

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Class 415/225 - Exit chamber in radial plane axially offset from runner (e.g., sludge pump, etc.)