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| Number | Title | Issue Date |
| 7845914 | Self-priming fast fill sprayer pump system A fast fill pump system for a self-propelled field sprayer includes high capacity centrifugal pump for tank filling. The centrifugal pump is connected in parallel with the fill connection and primed by a lower capacity diaphragm spraying pump. Two check valves and a... | 12/07/2010 |
| 7448857 | Fluid pump and cartridge In a fluid pump and cartridge assembly, a cartridge includes a material inlet port, a material outlet port, and a feed screw. The feed screw delivers fluid to be dispensed from the fluid inlet to the outlet port. The fluid inlet is preferably elongated in a directio... | 11/11/2008 |
| 7367782 | Pump plate of a rotary feed pump In a pump plate (26) of a feed pump, an inlet port (26b) and an outlet port (26c) are formed around a shaft hole (26a) through which a driving shaft is inserted, and a rib (26f), which partitions each of... | 05/06/2008 |
| 7328647 | Hydraulic device The invention concerns a hydraulic device with a housing and a rotor which can rotate in the housing and has fixedly mounted pistons. Around the piston there are drum sleeves which each, together with a piston, form a chamber of variable volume and which are support... | 02/12/2008 |
| 7311491 | Molecular drag, turbomolecular, or hybrid pump with an integrated valve A molecular drag, turbomolecular, or hybrid turbo/drag pump (5) of the invention has an outlet stage with a cylindrical peripheral wall (17) and a radial outlet orifice (23) passing through the cylindrical peripheral wall (17). An annular... | 12/25/2007 |
| 7309206 | Fuel pump received in housing A fuel pump includes a rotor, a rotating member, a pump portion, and a housing. The rotating member is rotated by the rotor to generate suction force for drawing fuel. The pump portion includes a pump casing that receives the rotating member. The housing receives th... | 12/18/2007 |
| 7267532 | Offset-drive magnetically driven gear-pump heads and gear pumps comprising same Magnetically driven gear-pump heads and pumps are disclosed. An exemplary gear-pump head includes a housing, a magnet cup, a pump driving gear, and a pump driven gear. The housing has a pump axis and defines a pump cavity. The magnet cup extends along the pump axis ... | 09/11/2007 |
| 7257948 | Dual pump apparatus A dual pump apparatus having first and second pump housings is disclosed. A first end cap is mounted to the first housing to form a first sump and a first pump cylinder block is located therein. A second end cap is mounted to the second housing to form a second sump... | 08/21/2007 |
| 7231910 | Method for setting the feed rate of a fuel pump unit, which sucks up fuel from a fuel tank, and fuel pump unit for the method The invention relates to a method for setting the feed rate of a fuel pump unit, which sucks up fuel from a fuel tank 8, as a function of the feed pressure, which is built up by the fuel pump unit, in an outlet 25 of the fuel pump unit, which outlet le... | 06/19/2007 |
| 7231998 | Operating a vehicle with braking energy recovery A vehicle engine has a system of valves that permits various engine cylinders to operate in different modes of operation. During braking, some of the engine cylinders receive atmospheric air, compress it, and transfer it to an intermediate air-container. Other cylin... | 06/19/2007 |
| 7226274 | Cement slab leveling apparatus A concrete slab leveling apparatus is provided that is built upon a vehicle such as a flatbed truck or trailer which makes it highly transportable enabling the invention to move from site to site quickly and easily. The flatbed platform of the vehicle is equipped wi... | 06/05/2007 |
| 7174998 | Submerged electric fluid pump An electric fluid pump for a transmission, transfer case or an oil reservoir. The pump is contained within the transmission, transfer case or engine oil reservoir and has an open housing which allows fluid into the motor for cooling and lubrication. ... | 02/13/2007 |
| 7140846 | Vacuum pump having main and sub pumps A vacuum pump having a rotary shaft that is rotated by a drive source has a main pump and a sub pump. The main pump includes a pump chamber and a gas transferring body that is located in the pump chamber. The main pump is driven by the drive source through the rotar... | 11/28/2006 |
| 7131555 | Method and device for discharging fluid A method for discharging fluid, includes while keeping two members relatively moving to each other along a gap direction of a gap formed by two opposing surfaces of the two members, feeding fluid from a fluid supply device to the gap, and intermittently discharging ... | 11/07/2006 |
| 7051534 | Gas turbine arrangement having an integrated filter housing and compressor bleed duct Arrangement at a gas turbine installation for the generating of electricity, where inlet air filter housing, bleed air outlet and inlet for the vent air to the turbine housing are integrated into two units, an upper filter housing and a lower intermediate housing co... | 05/30/2006 |
| 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 |
| 6935839 | Variable flow water pump A variable-capacity water pump includes a housing having an impeller mounted on a rotatable shaft. The impeller includes a plurality of vanes pivotally coupled between upper and lower shroud and operatively coupled to a pitch plate. As the pump speed increases in re... | 08/30/2005 |
| 6929455 | Horizontal two stage rotary compressor A hermetic two stage rotary compressor having a housing with a stationary shaft fixedly mounted in the housing. A motor having a rotor and a stator is mounted in the housing with the rotor being rotatably mounted on the shaft. A pair of compression mechanisms are ro... | 08/16/2005 |
| 6911743 | Aerogenerator having a fluid transmission and a gear transmission An aerogenerator is provided wherein a fluid-driven transmission and a gear-driven transmission are arranged between a propeller and a generator. The fluid-driven transmission has a variable hydraulic pump and a variable hydraulic motor. The fluid-driven transmissio... | 06/28/2005 |
| 6805538 | Fuel tank mounted, motorized high pressure gasoline pump A pump, for supplying high pressure fuel from a fuel tank to an engine via a common rail, includes a motor assembly (20) mounted on top of the fuel tank, a pump assembly (26) positioned within the fuel tank, and a support column (32) rotatably c... | 10/19/2004 |
| 6790013 | Variable displacement vane pump with variable target regulator A variable displacement vane-type fluid pump is provided which permits improved regulation of the pump discharge such that the pump can meet the various requirements of lubrication for internal combustion engines at all speeds with minimized use of power. Of course,... | 09/14/2004 |
| 6758656 | Multi-stage internal gear/turbine fuel pump A multi-stage internal gear/turbine fuel pump for a vehicle includes a housing having an inlet and an outlet and a motor disposed in the housing. The multi-stage internal gear/turbine fuel pump also includes a shaft extending axially and disposed in the housing. The... | 07/06/2004 |
| 6695591 | Multi-stage gas compressor system A multi-stage compressor comprises a gas compressor, a centrifugal blower having an input connected with a gas source and an output connected with the gas compressor and providing a flow of compressed gas as a first stage of compression to the gas compres... | 02/24/2004 |
| 6629822 | Internally supercharged axial piston pump An axial piston pump that enables fluid entering the pump to be pre-charged without the addition of an auxiliary pumping mechanism or other type of external fluid precharge, comprises a housing having a cylindrical inner wall surface surrounding a barrel ... | 10/07/2003 |
| 6422829 | Compound pump The invention relates to a friction vacuum pump (1) containing at least one turbomolecular pump stage (6, 7), a screw pump stage (11, 12) connected to the delivery side of the pump, and a filling stage (24) arranged between the turbomolecular pump stage (... | 07/23/2002 |
| 6409477 | Vacuum pump A vacuum pump including suction and discharge regions, two gas friction pumps arranged on opposite side of the suction region and parallel to each other and each having at least one stage and a discharge region channels connecting the discharge regions an... | 06/25/2002 |
| 6353274 | Mounting structure of rotary shaft of rotary electric machinery The present invention provides a mounting structure of a rotary shaft of rotary electric machinery in which it is possible to cope with vibration of the rotary shaft in an axial direction with a low parts count. A fitting groove into which a portion of a ... | 03/05/2002 |
| 6164939 | Scroll pump A scroll pump comprising a fixed scroll, an orbiting scroll orbiting with a radius which is the same as the eccentric distance of an eccentric shaft to the center of the fixed scroll and contacting the fixed scroll, an inlet port formed in the middle of t... | 12/26/2000 |
| 6106240 | Gerotor pump A gerotor pump including a ring gear and a pinion gear supported on a pump housing for rotation about parallel, laterally separated centerlines. A plurality of pump chambers defined by the teeth of the ring and pinion gears expand in an inlet half of a cr... | 08/22/2000 |
| 6059537 | Aircraft fuel pump with centrifugal pump and regenerative pump stages A fuel pressurization and pumping system for use in a turbine powered aircraft or the like makes use of the advantages of centrifugal pumps, even in a high pressure mode and includes a centrifugal volute pump (24) having a fuel inlet (28) and fuel outlet ... | 05/09/2000 |
| 6039545 | Method and apparatus for precision metering of high viscosity materials A pump for precision metered pumping of high viscosity materials. A pump housing has a material inlet and a material outlet, a drive gear and at least one cooperating driven gear for receiving material from the material inlet and pumping a metered amount ... | 03/21/2000 |
| 6024541 | Hydraulic axial piston pumps A hydraulic axial pump/motor comprises a plurality of revolving as well as reciprocating pistons, operatively associated with a stationary port plate. The port plate comprises at least a first, elongated, arcuate suction port and at least a second elongat... | 02/15/2000 |
| 6022197 | Aircraft pump system with internal pressure control, comprising a regenerative pump and a centrifugal pump Difficulties in adapting centrifugal pumps for use as fuel pumps for turbine powered aircraft are avoided in a system including a centrifugal volute pump (22) on a common shaft (18) with a regenerative pump (24). A pressure responsive throttling valve (46... | 02/08/2000 |
| 6022198 | Twin pump with a charging pump A double pump unit including two hydraulic pumps (1, 2) having drive shafts (5, 6) arranged coaxially with one another, which shafts are coupled with one another in a force-locking manner by a coupling piece (23). The coupling piece (23) is integrated in ... | 02/08/2000 |
| 6012904 | Vented fuel module reservoir with two-stage pump A main fuel tank in an automotive vehicle contains a reservoir in which is located a two-stage electrically operated pump. The first stage is a rotary side lateral pump which draws fuel from the main tank and delivers it to the reservoir. The second stage... | 01/11/2000 |
| 5857842 | Seamless pump with coaxial magnetic coupling including stator and rotor A seamless pump is disclosed which includes a pump casing that houses a stator and a rotor. The stator and rotor provide enhanced pumping action in the seamless pump. The stator surrounds at least a portion of the rotor. A rotatable housing surrounds at l... | 01/12/1999 |
| 5769626 | Evacuation system with exhaust gas cleaning and operating process for it An evacuation system (1) with exhaust gas cleaning, consists of at least one vacuum pump unit (4) and at least one cleaning unit (10) in series as to enable the continuous flow of fluid media supplied by the vacuum pump unit (4). In order to prevent conde... | 06/23/1998 |
| 5599171 | Rotary, self-priming, liquip pump, and an impellers and shaft assembly therefor, and a flexible-impeller pump assembly A pump housing has a plurality of chambers formed therein, and a shaft journaled within, the shaft having impellers keyed thereto. Each chamber has one of the impellers disposed therein. One of the impellers is the primary liquid-working element, and has ... | 02/04/1997 |
| 5595477 | Vacuum pumping stand A vacuum pumping stand for the cyclic pumping-down of containers and for maintaining an operating vacuum in the containers, for the pumping-down of the container. The vacuum pumping stand has a first and a second vacuum pump which are arranged in series a... | 01/21/1997 |
| 5551842 | Unit for delivering fuel from a supply tank to the internal combustion engine of a motor vehicle A device for delivering fuel from a storage tank to the engine of a motor vehicle, having a two-stage feed pump driven to rotate by an electric drive motor. The preliminary stage of the feed pump is embodied as a side channel pump whose partially ring-sha... | 09/03/1996 |
