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| Number | Title | Issue Date |
| 7374398 | Automotive compressor An automotive compressor is provided having a casing defining an intake section for fluid for compression, and a delivery section for delivering the compressed fluid. An impeller is movable angularly inside the casing to increase the pressure of the fluid. A distrib... | 05/20/2008 |
| 7357621 | Centrifugal fan diffuser At least one embodiment of the present inventive technology focuses on a vaneless diffuser adapted for establishment extra-radially of a centrifugal fan, wherein the diffuser may effect an optimal transformation of velocity pressure into static pressure of a fluid (... | 04/15/2008 |
| 7320542 | Blender with cooling/muffling functions A blender includes a base frame, a cover for covering the base frame, a muffler housing, a motor, and a fan. The base frame includes a hollow column having a compartment for receiving the motor. Two separating plates extend downward from a bottom end of the base fra... | 01/22/2008 |
| 7114255 | Method of making a gas turbine engine diffuser A method of machining a plurality of intersecting bores in an object, the method comprising steps of machining a first bore, plugging the first bore, machining a second bore so as to intersect the first bore, and unplugging the first bore. ... | 10/03/2006 |
| 7086833 | Housing with two housing parts for a radial flow compressor, and method for manufacturing the housing A housing part, which can be firmly joined to another housing part for the formation of a housing of a radial flow compressor, in particular a turbocharger. At least one open or closed channel portion is provided in each housing part so that when the housing parts a... | 08/08/2006 |
| 7001140 | Centrifugal fan diffuser At least one embodiment of the present inventive technology focuses on a vaneless diffuser adapted for establishment extra-radially of a centrifugal fan, wherein the diffuser may effect an optimal transformation of velocity pressure into static pressure of a fluid (... | 02/21/2006 |
| 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 wall in a radial direction, a suction scroll duct wall extending from ... | 12/06/2005 |
| 6830429 | Small cooling fan A small cooling fan includes a rotating fan body with a vane in a flat fan housing, and an air channel for backflow prevention. The air channel is provided outside of the vicinity of the tip of the vane of the rotating fan body, extends to an air outlet, and has an ... | 12/14/2004 |
| 6726449 | Pump diffuser anti-spin device In a downhole centrifugal pump, diffusers are stacked one on top of each other inside of tubular pump housing without contacting the pump drive shaft or impellers. A first compressive device applies a pre-compressive force to a stack of diffusers to prevent the diff... | 04/27/2004 |
| 6712588 | Turbomachine with a vaneless rotating diffuser and nozzle A radial turbine with a novel inlet and a outlet is combined with a centrifugal compressor, also having novel inlet and outlet, so as to obtain a turbocompressor unit wherein the respective inlets and/or exhausts of which are improved. The combination of above impro... | 03/30/2004 |
| 6699008 | Flow stabilizing device The present invention is a device (100) for at least partially stabilizing an unstable fluid flow within a flow channel (103) by capturing at least a portion of the unstable fluid within a vaneless diffuser having a diffuser slot (104). The present invent... | 03/02/2004 |
| 6589015 | Discrete passage diffuser A centrifugal compressor includes an impeller and a diffuser. The impeller has an inner integral hub with vanes thereon, is adapted to rotate within an outer shroud about a central longitudinal axis, and has a defined hub-to-shroud distribution of fluid e... | 07/08/2003 |
| 6537028 | Diffuser arrangement for centrifugal compressors In a diffuser arrangement for centrifugal compressors, a longitudinal center line of each passage is tangential to a reference tangent circle defined concentrically with respect to the impeller and having a smaller diameter than an outer diameter of the i... | 03/25/2003 |
| 6485259 | Vaneless impeller housing for a vacuum cleaner A vacuum cleaner includes a driven impeller that moves working air for the vacuum cleaner. A first housing includes a first wall and a second housing includes a second wall opposite the first wall, and an outlet for the working air. The impeller rotates a... | 11/26/2002 |
| 6382912 | Centrifugal compressor with vaneless diffuser A centrifugal compressor or pump has a vaneless diffuser within which a radially extending passage is formed between a fixed plate surface and a profile contoured shroud surface establishing a pinch point location of minimum passage area intermediate inle... | 05/07/2002 |
| 6309180 | Molded through-flow motor assembly A molded through-flow motor assembly has a motor housing, including a cup portion and a flange portion. The flange portion includes a plurality of ramp surfaces extending outwardly therefrom. The cup portion has a field retaining wall and guide rib extend... | 10/30/2001 |
| 6280139 | Radial split diffuser The invention relates to a radial split diffuser with an inner casing and an outer casing joined together along a cylindrical joint. Each diffuser passage is intersected by and extends transversely across the joint. The advantages of this design include: ... | 08/28/2001 |
| 6224321 | Impeller containment system The present invention relates to an impeller containment system for containing the burst of an impeller or the burst of impeller fragments from an impeller hub. The containment system utilizes a catcher extending from a shroud plate adjacent the impeller,... | 05/01/2001 |
| 6203275 | Centrifugal compressor and diffuser for centrifugal compressor In a multi-stage centrifugal compressor, having a plurality of impellers mounted on a rotation shaft, or a single-stage centrifugal compressor, a vaned diffuser, having a plurality of vanes, is mounted at a downstream side of the impeller, and a vaneless ... | 03/20/2001 |
| 6123506 | Diffuser pipe assembly The invention provides a diffuser assembly constructed of internal and external concentrically nested bowl-shaped shells for directing an outward flow of compressed air from a centrifugal compressor impeller to an axially rearward diffused annular flow. T... | 09/26/2000 |
| 5762833 | Aerator with a removable stator and method of repairing the same An improved aerator, including a removable stator, is disclosed. The aerator includes a submersible motor having a drive shaft which rotates an attached impeller within an aeration zone. The aeration zone includes the removable stator, an upper ring to wh... | 06/09/1998 |
| 5618162 | Centrifugal compressor hub containment assembly To contain high energy fragments generated by a hub burst, a compressor containment assembly in a gas turbine engine includes a diffuser housing having an arcuate portion that defines a channel which traps the high energy fragments and an axial facing U-s... | 04/08/1997 |
| 5445496 | Centifugal compressor with pipe diffuser and collector A channel type diffuser is applied to a centrifugal compressor to obtain substantially complete expansion of the refrigerant downstream of the impeller wheel. The relatively large volume of expanded gases that results from such a diffusion process is acco... | 08/29/1995 |
| 5266002 | Centrifugal compressor with pipe diffuser and collector A channel type diffuser is applied to a centrifugal compressor to obtain substantially complete expansion of the refrigerant downstream of the impeller wheel. The relatively large volume of expanded gases that results from such a diffusion process is acco... | 11/30/1993 |
| 5252027 | Pipe diffuser structure A pipe diffuser is formed from a disc by initially drilling a plurality of circumferentially spaced, generally radially extending passages, but not to the point of any substantial intersection between the adjacent passages. Material is then removed by for... | 10/12/1993 |
| 5161939 | Air compression system The disclosure relates to a fully integrated single stage centrifugal air compression system that exhibits a relatively high flow rate at relatively low pressure. The air compression system comprises a single impeller that is driven through a belt drive b... | 11/10/1992 |
| 5145317 | Centrifugal compressor with high efficiency and wide operating range A pipe diffuser is used in a centrifugal compressor in such a way as to obtain high efficiency over a broad operating range. The number of channels in the pipe diffuser is limited such that the wedge angle is relatively large and therefore not susceptible... | 09/08/1992 |
| 5143514 | Diffuser of centrifugal compressor A diffuser of a centrifugal compressor for guiding a fluid flowing from an impeller to a scroll. The diffuser is formed by a pair of oppositely disposed lateral walls. The diffuser is provided at a fluid outlet portion thereof with an outlet throttling po... | 09/01/1992 |
| 5100289 | Self-priming centrifugal pump The present invention relates to a self-priming centrifugal pump which includes a stator case with a delivery port and an outflow port and a radial-centrifugal bladed impeller. An ejector is provided inside the case and has an induction chamber which is c... | 03/31/1992 |
| 5090868 | Centrifugal pump This invention relates to a centrifugal pump, bearing housing, diffuser ring, and volute housing fastening arrangement in which a plurality of containment pump bolts pass through, in one direction, corresponding openings in the bearing housing, the diffus... | 02/25/1992 |
| 5064344 | Partial throat diffuser A centrifugal fluid handling apparatus such as, for example, a centrifugal fuel pump for, for example, an aircraft engine, which includes a impeller rotatably mounted in a housing, with an annular diffuser ring being disposed about a periphery of the impe... | 11/12/1991 |
| 4893986 | High-pressure high-temperature coal slurry centrifugal pump and let-down turbine A two-stage, high-pressure centrifugal pump comprises a pump housing and at least one pair of external inlets and outlets for charging and discharging each stage of the pump. The inlets and outlets are located through the periphery of the pump for allowin... | 01/16/1990 |
| 4828457 | Elbow casing for fluid flow machines A casing which admits the fluid medium into the range of the impeller or first impeller in a fluid flow machine, particularly in a centrifugal pump, is made of several sections which have abutting surfaces. At least one such surface has a recess forming p... | 05/09/1989 |
| 4648787 | Apparatus for transporting and/or mixing gases An apparatus for transporting gases, liquids and the like by means of a conical screw type propeller 10 which sucks gases or liquids in and passes them along. The propeller consists of at least two guide panels 1, 2 of helicoidal configuration which defin... | 03/10/1987 |
| 4645419 | Centrifugal compressor A centrifugal compressor having an improved efficiency is constructed by providing a diffusion channel and vanes downstream of a diffuser, the diffusion channel being coupled to the diffuser through a U-turn channel, the outlet side passage of the U-turn ... | 02/24/1987 |
| 4626168 | Diffuser for centrifugal compressors and the like The improved diffuser includes pinching a portion of a diffuser flow passageway that has ribs therein extending partially across the diffuser passageway and that have their leading edges located away from the inlet of the diffuser passageway. The diffuser... | 12/02/1986 |
| 4579509 | Diffuser construction for a centrifugal compressor Constant flow width through the last stage diffuser of a centrifugal compressor is maintained against widening by the forces of differential pressure via a diffuser defined between oppositely positioned radial faces of a diaphragm and an annular diffuser ... | 04/01/1986 |
| 4521155 | Turbocharger compressor housing A turbocharger compressor housing unit includes an outer housing and a wall insert for engagement with the outer housing. The outer housing has a compressor inlet port, a wall transverse to the inlet port and extending outwardly therefrom and a circumfere... | 06/04/1985 |
| 4504188 | Pressure variation absorber Pressure variation absorbing apparatus is mounted adjacent to a moving fluid stream in the diffuser of a centrifugal compressor for absorbing both acoustic and aerodynamic pressure variations. The absorbing apparatus when mounted as a part of the diffuser... | 03/12/1985 |
| 4494908 | Tangential blower Owing to a new design of the partition wall (vortex former) of the novel type tangential blower, there is achieved an improvement of the pressure-volume characteristic and a reduction of the noise development.... | 01/22/1985 |
