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| Number | Title | Issue Date |
| 7887285 | Pump and fluid supplying apparatus A pump includes a rotatable rotor installed in a motor part and at least one impeller installed in a pump part, capable of being rotated together with the rotor in unison. The rotor and the impeller are accommodated in a casing, and the impeller has an inlet at an i... | 02/15/2011 |
| 7871238 | Fuel pump A vapor lock in a fuel pump can be prevented by reducing the formation of vapor within the fuel. A first group of concavities may be formed in an inner circumferential region of an intake side face of an impeller, and a second group of concavities may be formed conc... | 01/18/2011 |
| 7837430 | Rotary blower and aspirator having a modifiable conformation The machine comprises an impeller, provided with blades connected to a central body of the impeller; the impeller is closed in a casing which defines an annular conduit, in which the blades rotate, which annular conduit exhibits an intake mouth and a delivery mouth ... | 11/23/2010 |
| 7507065 | Fuel pump Fuel pump (10) may comprise a casing (18) and a substantially disc-shaped impeller (20) which is rotatably disposed within the casing (18). A first group of concavities (21a) may be formed in a lower face of the impeller ( | 03/24/2009 |
| 7425113 | Pressure and current reducing impeller A secondary air system providing a regeneration air pump wherein the vanes of the impeller are tapered from a point along the length of the vane to the root of the vane inside the air pump. The tapered vanes create desirable flow characteristics. The tapered vanes c... | 09/16/2008 |
| 7290979 | Circumferential flow pump In a circumferential flow pump, a first groove sectional area (S1) of a feed passage at a pump cover side is set to be smaller than a second groove sectional area (S2) of a feed passage at a pump base side, whereby the diameter of an eddy flow occurrin... | 11/06/2007 |
| 7267524 | Fuel pump having single sided impeller A fuel pump is provided having improved efficiency by lowering the wet circle index of the pump while maintaining robust axial clearances to meet the demands of an automotive application. One embodiment includes a fuel pump for pressurizing fuel for delivery to an e... | 09/11/2007 |
| 7264439 | Evacuating device A device (1), for evacuating a chamber to pressures in the high vacuum range includes a suction-side vacuum pump (2) and an atmospheric-pressure-side vacuum pump (3). The suction-side vacuum pump (2) is a mechanical kinetic vacuum pump wi... | 09/04/2007 |
| 7217085 | Fuel pump of low fuel intake resistance A fuel pump to be disposed in a fuel tank to supply pressurized fuel to an internal combustion engine includes a motor section, a pump section including an impeller driven by the motor section and a cylindrical pump housing having a pump passage extending along the ... | 05/15/2007 |
| 7217084 | Automotive fuel pump with pressure balanced impeller A rotary fuel pump employs pressure balancing features on the non-vaned side of the impeller to provide localized application of fluid forces so that the impeller is more precisely balanced within the pumping chamber. A generally disc-shaped impeller body has an imp... | 05/15/2007 |
| 7198455 | Vacuum pumping arrangement In a pumping arrangement for a chamber, a regenerative pumping mechanism comprises a rotor and a stator having an annular channel within which rotor blades rotate to urge fluid along the channel. The channel has a stripper, a channel inlet positioned adjacent one en... | 04/03/2007 |
| 7165931 | Compact molecular-drag vacuum pump A molecular drag vacuum pump configured for pumping a gas stream from an inlet to an outlet, the pump including a high-speed spinning disk or rotor disposed within a housing. A passageway is formed inside the housing adjacent the disk, and gas comes in contact with ... | 01/23/2007 |
| 7163456 | Vehicle air conditioner Engine cooling water is charged to a flexible diaphragm member (3d) to expand the flexible diaphragm member (3d) so that the substantial sectional area of an air passage (3b) is decreased when a ventilation resistance, in an... | 01/16/2007 |
| 7125218 | Circumferential flow pump Each of impeller grooves of an impeller has a first bow surface that extends from one end surface of the impeller so as to have a radius R1, a second bow surface that extends from the other end surface of the impeller so as to have a radius r1, and a p... | 10/24/2006 |
| 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 |
| 7029230 | Impeller for a side channel pump An impeller for a delivery pump in which profiled section (14) comprising webs (15) is located on the outer periphery of an impeller (4) for a feed pump (2) that is configured as a side channel pump. The webs (15) are arranged at a... | 04/18/2006 |
| 7008174 | Fuel pump having single sided impeller A fuel pump is provided having improved efficiency by lowering the wet circle index of the pump while maintaining robust axial clearances to meet the demands of an automotive application. One embodiment includes a fuel pump for pressurizing fuel for delivery to an e... | 03/07/2006 |
| 6974302 | Turbine fuel pump A turbine fuel pump includes an impeller having blades, each including a linear blade portion extending linearly in the radial direction of the impeller and a curved blade portion extending circularly curvedly from the head of the linear blade portion to the forward... | 12/13/2005 |
| 6970398 | Pressure pulse generator for downhole tool A pressure pulse generator for a downhole drilling tool is provided. The pressure pulse generator includes a stator with an orifice through which a stream of fluid passes, and a rotor intended to rotate opposite the stator to allow the flow of more or less liquid ex... | 11/29/2005 |
| 6942446 | Feed pump The invention relates to a feed pump (2) that is configured as a side-channel pump with a plurality of identically designed feed chambers (6, 7) with outlet channels (22, 23) that are disposed opposite one another, thereby eliminating the radial... | 09/13/2005 |
| 6942447 | Impeller pumps An impeller pump (1) for a fluid includes a rotary impeller (5) and a pump housing (3, 4). The pump housing defines a first main flow channel (3a) and a second main flow channel (4a). A first inlet channel (3 | 09/13/2005 |
| 6932562 | Single stage, dual channel turbine fuel pump A single stage, dual channel turbine fuel pump for use in a vehicle fuel delivery system, generally including a lower casing, an upper casing, an impeller and a motor. Both the lower and upper casings have a pair of concentric, annular grooves formed on their surfac... | 08/23/2005 |
| 6733230 | Low noise impeller pumps An impeller pump has a pump casing (6) that defines a pump chamber. The pump chamber includes a first chamber (21) and a second chamber (22). An impeller (10) is rotatably disposed within the pump chamber. The impeller has a first groove ... | 05/11/2004 |
| 6729841 | Turbine pump A turbine pump includes a casing having an inlet, an outlet and front and rear arc-shaped pump passages and an impeller. The impeller has plural impeller partitions respectively disposed between every two of the blades thereby forming impeller grooves at front and r... | 05/04/2004 |
| 6709243 | Rotary machine with reduced axial thrust loads A rotary machine includes a helical flow compressor/turbine and a permanent magnet motor/generator including a housing with a stator positioned therein. A shaft is rotatably supported within the housing. A permanent magnet rotor is mounted on a shaft and operatively... | 03/23/2004 |
| 6676367 | Regenerative pumps A regenerative fluid dynamic machine, typically a blower or compressor, includes an impeller (1) with fixedly attached blades (6) which may be radial or curved in a general convex fashion facing forward in the direction of turning. The impeller is enclose... | 01/13/2004 |
| 6533538 | Impeller for fuel pump A fuel pump for a vehicle includes a pump section having a flow channel and a rotatable impeller cooperating with said flow channel to pump fuel therethrough. The fuel pump also includes a motor section disposed adjacent the pump section and having a moto... | 03/18/2003 |
| 6497552 | Fuel pump for internal combustion engine An impeller has a plurality of blades at an outer periphery thereof. Each of the adjacent blades define a groove space, and a partition wall is provided in the groove space. The partition wall is disposed at a center area of the groove space in an axial d... | 12/24/2002 |
| 6468027 | Fuel pump for internal combustion engine A casing includes a C-shaped casing side pump groove along blades of an impeller. A casing cover also includes a casing cover side pump groove facing the casing side pump groove. The casing side pump groove and the casing cover side pump groove form a pum... | 10/22/2002 |
| 6447242 | Feed pump In a feed pump designed as a side-passage pump and having a driven impeller rotating in a housing a liquid to be fed is supplied radially from the inside to guide blades arranged in the impeller. For this purpose, the impeller has a groove adjoining the g... | 09/10/2002 |
| 6174128 | Impeller for electric automotive fuel pump A fuel pump has a motor with a shaft extending therefrom and an impeller fitted thereon for pumping fuel from a fuel tank to an internal combustion engine. A pumping chamber, which encases the impeller, is comprised of a cover channel and a bottom channel... | 01/16/2001 |
| 6162012 | Force balanced lateral channel fuel pump A lateral channel fuel pump with a stator having a pumping channel and a second channel each of which cooperates with vanes in a rotor driven to rotate by an electric motor to generate pressure within both the pumping channel and the second channel. The s... | 12/19/2000 |
| 6102653 | Feed pump In a feed pump (2) designed as a side channel pump, with an impeller (5) rotating in a pump casing (3) and having blade chambers (12, 13), the blade chambers (12 13) have an inflow region (16, 17), the profile of which is designed asymmetrically to that o... | 08/15/2000 |
| 6086325 | Side channel machine To improve the efficiency of a side channel suction machine, it is proposed to provide in the inlet regions of the side channels a smooth deflecting wall, which extends from the base of the side channel to the end face of the housing part in which the sid... | 07/11/2000 |
| 6071071 | Side-channel fan, in particular for supplying combustion air in an independent heater of a motor vehicle A side-channel fan (1), especially for feeding combustion air in a parking heater (2) of a motor vehicle, with a fan body part (3) in an axial connection to an impeller (4), wherein the fan body part (3) has an inlet channel (5) and an outlet channel (6) ... | 06/06/2000 |
| 6019571 | Side channel compressor Side channel compressor, in which the gap (7) existing between the rotor (2) and the housing parts (1) surrounding the rotor (2) is sealed off using a sealing tape (8) introduced into a peripheral groove (9) provided in the corresponding wall regions of t... | 02/01/2000 |
| 6017183 | Flow pump In connection with a flow pump, particularly for the conveying of fuel from a fuel tank of a motor vehicle, with a pump chamber embodied in a pump housing which is bordered by two radially extending lateral walls (12), spaced apart from each other, and a ... | 01/25/2000 |
| 6012896 | Process for producing a connection of an insert part to a tubular part by means of flanging The insert part (12) is introduced into the tubular part (10) from one end and comes to butt, in the direction of the longitudinal axis (11) of the tubular part (10), against a stop (24). At its end into which the insert part (12) is pushed, the tubular p... | 01/11/2000 |
| 6010301 | Fuel pump for vehicle A fuel pump of returnless type fuel supply system for a vehicle includes a pump case, an impeller disposed in the pump case and a pump passage connected between the fuel inlet port and fuel discharge port. The pump passage is composed of a guiding passage... | 01/04/2000 |
| 5964573 | Housing for a side channel compressor The invention relates to a housing consisting of two housing halves for a side channel compressor. The strength of such a housing can be appreciably increased in that the front wall (3) of each housing half (1) and (2) has formed on it at least two rings ... | 10/12/1999 |
