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| Number | Title | Issue Date |
| 7748949 | Fuel pump with inner channel priming A pump unit 12 includes a pump housing 14, a pump cover 16, and an impeller 18 between the pump housing and pump cover. The pump housing and pump cover define a first channel 32 and a second channel 34 each having an inlet a... | 07/06/2010 |
| 7331323 | Lubricating oil supplying system for internal combustion engine A lubricating oil supplying system for an internal combustion engine includes a lubricating oil storage section for storing lubricating oil. A driven pump is driven by the internal combustion engine to suck the lubricating oil from the lubricating oil storage sectio... | 02/19/2008 |
| 7264440 | Fuel pump A fuel pump in which fuel can pass smoothly through through-holes of an impeller is taught. Through-holes communicate concavities formed in upper and lower faces of the impeller. These through-holes are formed at an inner side region within the concavities. When the... | 09/04/2007 |
| 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 |
| 7156610 | Turbine type electric fuel pump for automobile Provided is a turbine type electric fuel pump for an automobile having a casing in which a pump portion and a motor portion are installed. The pump portion includes a fuel intake case having a fuel intake hole, a fuel discharge case having a fuel discharge hole, and... | 01/02/2007 |
| 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 |
| 7112035 | Delivery system In known delivery systems, a pump chamber and a revolving impeller in the pump chamber rotating about a pump axis, in which protuberances are provided inside the pump chamber on predetermined end walls, it is disadvantageous that the protuberances very and are compl... | 09/26/2006 |
| 7090460 | Pump embodied as a side channel pump A side channel pump, preferably a vacuum pump, includes a driven rotor (16) and a fixed stator (14). The rotor (16) and the stator (14) define a pump channel circulating in a peripheral direction. Blades are fixed onto the rotor, protrudi... | 08/15/2006 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 6626639 | Vacuum pump A compound vacuum pump includes a regenerative section and a Holweck section. An annular abutment is formed on the radially innermost rotating cylinder of the Holweck section. The abutment acts to cause dust and foreign particles entering an inlet of the ... | 09/30/2003 |
| 6464451 | Vacuum pump A vacuum pump, including a housing having inlet and outlet; a shaft arranged in the housing and supported bearing provided in the housing, drive for rotating the shaft; and a plurality of pumping units arranged in the housing and formed each of rotational... | 10/15/2002 |
| 6231300 | Peripheral pump In a peripheral pump, having a rotor (2) which rotates in a pump casing (1) and having two delivery chambers (11, 12), which extend on both sides of the end sides (3, 4) and each have circular cross sections, the delivery chambers (11, 12) have a communic... | 05/15/2001 |
| 6152687 | Feed pump In a feed pump designed for feeding fuel in a motor vehicle and having two feed chambers (11, 12) located opposite one another, of which one is connected to an inlet port (18) and the other to an outlet port (19), the feed chamber (11) connected to the in... | 11/28/2000 |
| 6152688 | Fuel pump A fuel pump is developed as a side-channel pump with two conveyor chambers for the conveying of a liquid to an outlet channel, and has two inlet channels arranged one behind the other seen in the direction of flow. One of the inlet channels debouches into... | 11/28/2000 |
| 6152686 | Equipment for pumping fuel from a storage tank to the internal-combustion engine of a motor vehicle The unit has a conveying pump embodied as a flow pump (10) with an impeller wheel (12) rotating in a pump chamber (24) and having respectively a crown of vanes (32) on both of its front faces which, together with grooves (38, 24) in the shape of a partial... | 11/28/2000 |
| 6082960 | Regenerative pump Side-channel centrifugal pump in sectional construction, the stage packs of which comprise a suction connector (6), a pressure connector (7), a vane (10) and a casing shell element (8, 9). In order to reduce the structural complexity, the suction and pres... | 07/04/2000 |
| 5605443 | Compressor set A compressor set which comprises at least two side-channel compressors which are in an axially adjacent arrangement and have in each case a casing comprising at least two casing halves provided on their outer circumference with radially outwardly projecti... | 02/25/1997 |
| 5591000 | Compressor unit A compressor unit is provided, which has at least two side-channel compressors arranged axially next to one another, and in which housing halves within each compressor each have, on a housing wall extending between an axially extending hub extension and a... | 01/07/1997 |
| 5584650 | Lubrication system A lubrication system comprising a first pump (2) to deliver lubricating oil from a reservoir (1) to equipment to be lubricated (9), a second pump (11) to return lubricating oil from the equipment (9) to the reservoir (1), and characterised in that both pu... | 12/17/1996 |
| 5580213 | Electric fuel pump for motor vehicle A motor vehicle fuel pump including an electric motor, a high pressure pump, and a low pressure pump having a side channel pumping stage for pumping fuel from a fuel tank to a reservoir and a regenerative turbine pumping stage for pumping fuel from the re... | 12/03/1996 |
| 5516259 | Aggregate for feeding fuel from supply tank to internal combustion engine of motor vehicle Aggregate for feeding fuel from a supply tank to an internal combustion engine of a motor vehicle has a feeding pump formed as a flow pump and including a disc-shaped rotatable impeller. A hydraulic buffer is formed between the impeller and the end walls ... | 05/14/1996 |
| 5490761 | High performance turbomolecular vacuum pumps Turbomolecular vacuum pumps having structures which provide increased pumping speed, increased discharge pressure and decreased operating power in comparison with prior art turbomolecular vacuum pumps. In a first embodiment, the stators of one or more axi... | 02/13/1996 |
| 5468119 | Peripheral pump, particularly for feeding fuel to an internal combustion engine from a fuel tank of a motor vehicle The peripheral pump has a rotatable impeller including a central hub portion, an outer peripheral closed ring and impeller blades connecting the outer peripheral closed ring and the central hub portion to form intervening spaces between the blades; and a ... | 11/21/1995 |
| 5456574 | Centrifugal pump with starting stage A novel centrifugal pumping system is disclosed for supplying fuel to aircraft gas turbines. The system has a common rotor with two different sets of impeller blades on opposite sides. A regenerative/liquid-ring starting pump is located on one side of the... | 10/10/1995 |
| 5017086 | Hydraulic periphery pumps A hydraulic periphery pump that includes a housing having a pump drive shaft mounted for rotation about its axis. An impeller is coupled to the drive shaft for rotation within the housing and has a disc-shaped body with axially orientated substantially fl... | 05/21/1991 |
| 5011367 | Fuel pump A fuel pump including an impeller having a plurality of vanes at an outer circumference thereof and a well member surrounding the vanes and formed with a fuel grooves to define a pump chamber, wherein a portion of an edge of the fuel groove intersecting t... | 04/30/1991 |
| 5009575 | Vapor lock preventing mechanism in motor-driven fuel pump A multi-stage motor-driven fuel pump including a motor section provided with an electric motor and a pump section to be driven by the electric motor, the pump section having a plurality of pump chambers partitioned by intermediate plates and communicated ... | 04/23/1991 |
| 4948344 | Controlled vortex regenerative pump A regenerative pump which has a controlled output by having movable lateral channel arcuate slots (36, 38) in channel plates (26) which are on opposite sides of a bladed rotor (18). The channel plates (26) are mounted for sliding movement to reduce the ef... | 08/14/1990 |
| 4881871 | Peripheral pump The invention concerns a peripheral pump with an impeller, housing and conveyance channel beginning at a suction aperture and passing through at least one flow duct in the housing and impeller blade cells therein to a discharge orifice, the spacing betwee... | 11/21/1989 |
| 4872806 | Centrifugal pump of vortex-flow type A centrifugal pump of the vortex-flow type includes a pump housing defining therein an arcuate pump chamber in surrounding relationship with a central sealed chamber, and a disc-like impeller rotatably and axially movably assembled within the pump housing... | 10/10/1989 |
| 4844621 | Fuel pump with passage for attenuating noise generated by impeller A fuel pump of regenerative type mounted in a fuel tank. The fuel pump has a pump housing defining a pump chamber, an impeller rotatably mounted in the pump housing and provided with a multiplicity of blades formed thereon, and a driving device for drivin... | 07/04/1989 |
| 4723888 | Pump apparatus A regenerative pump has a pump housing and a disc-like impeller mounted in the housing so as to be rotated by a motor. The impeller is provided with circumferential rows of radial vane grooves formed in the opposite end faces of the impeller adjacent to t... | 02/09/1988 |
| 4650404 | Motor-driven fuel pump A motor-driven regenerative type fuel pump is provided with an overflow mechanism disposed adjacent to a discharge pipe. The overflow mechanism includes a plug hole in a pump housing and a plug member disposed in the plug hole. The pump housing is formed ... | 03/17/1987 |
| 4591311 | Fuel pump for an automotive vehicle having a vapor discharge port A pump apparatus of a regenerative type having a vapor discharge port for avoiding a vapor lock. A portion of a circumferential fluid passage of a pump is enlarged within an angular range of 180° measured from a suction port of the pump and the vapor dis... | 05/27/1986 |
