Class 418/206.7 - With bearings

Subclass of Class 418 - Rotary expansible chamber devices
Definition: Apparatus comprising means to support, guide, and reduce
No. of patents: 50
Last issue date: 10/27/2009

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Number	Title	Issue Date
7607906	Gear pump arrangement with erosion resistant insert A gear pump arrangement comprising a pair of intermeshing gears (16, 18) located between bearing blocks (24) and rotatable to pump fluid from an inlet (12) to an outlet (14), wherein at least one of the bearing blocks (24) comprise...	10/27/2009
7238012	Rotary pump A rotary pump has a simple construction by omitting a transmission shaft on the side of a motor and whereby makes a cost of the rotary pump as low as possible, with maintaining feature that assembling and disassembling is facilitated. The rotary pump has a main casi...	07/03/2007
7179070	Variable capacity pump/motor A variable capacity pump/motor has a meshing internal and external gear set disposed between an upper mandrel and a lower mandrel, each including a flange extending towards the gears to divide a pump/motor chamber into suction and discharge chambers. The outer gear ...	02/20/2007
7144234	Flanged gear pump The invention concerns a gear pump comprising a pump body (2) closed with a cover (3) forming a cavity wherein is provided a drive pinion (4) capable of being driven in rotation by a drive shaft (1) whereto it is fixed, a driven pinion (	12/05/2006
6997689	Offset bearing for extended fuel pump life A bearing assembly (20) for a pump (12), e.g., an internal or external gear pump includes a journal bearing block (20) having a length, a width, and an axial centerline (CL′) passing through a center of the journal bearing block (20) wi...	02/14/2006
6902382	Gear motor start up control A hydraulic motor comprising a housing having a fluid inlet. A fluid outlet and a cavity there between, a pair of intermeshing gear elements rotatable in the housing about mutually parallel axes. Each of the gear elements having a set of gear teeth disposed about th...	06/07/2005
6761546	Gear pump having bearings with cooling ducts A gear pump comprises a casing and gear rotors disposed therein. The gear rotors are lodged in bearing sections of plain bearings that are lubricated by the pumping medium. They have at least one cooling duct which is embodied such that cooling varies along the circ...	07/13/2004
6716010	Bearing arrangement A bearing arrangement for a gear pump comprises first and second separate bearing blocks each having a respective block housing. The first and second bearing blocks together defining an axially directed bearing surface including a bridge region formed from an erosio...	04/06/2004
6705847	Rotary displacement machine having at least two annular displacement gears and supply channels A rotary displacement machine has a housing and at least two annular displacement gears arranged in the housing and supported rotatably on a stationary axle, receptively. The at least two annular displacement gears have external teeth for conveying a fluid. At least...	03/16/2004
6692244	Hydraulic pump utilizing floating shafts A hydraulic pump assembly includes a pump housing having a chamber defined therein, wherein the chamber includes a pair of cylindrically shaped portions each defining at least one end wall. The hydraulic pump assembly also includes a pair of rotary pump e...	02/17/2004
6575720	Bearing and shaft cooling device The bearing cooling device causes cooling media to flow into the interior of a journal bearing 8 for supporting a shaft part 7 by lubrication of high viscous fluid and the interior of the shaft part 7 to cool the shaft part 7 and the bearing 8. At this ti...	06/10/2003
6537048	Pump body for a medical gear pump A pump body for a medical gear pump for sucking and irrigating has a pot-like pump housing with two cylindrical openings, in which two meshing gearwheels are embedded. The driving gearwheel is, without pivot bearing, embedded in the opening. A lid is used...	03/25/2003
6524088	Gear pump having a bearing with a temperature adjusting medium passage To provide a gear pump for carrying high viscous liquid, which keeps a bearing in a free state and enhances reliability relative to a leakage of cooling medium and a leakage of molten resins. The gear pump in which a pair of gear rotors 2 are supported on...	02/25/2003
6454552	Fluid mover A pump for moving a fluid has a housing with an internal chamber accommodating a pair of rotors mounted on parallel shafts connected with gears operable to rotate the shafts in opposite directions. Each rotor has opposite end walls and protrusions and poc...	09/24/2002
6309199	Assemblies for modular fluid pump Discloses apparatus for use with a modular fluid pump assembly, particularly pumps used to pump fluids containing entrained contaminants such as grit. The apparatus includes a pair of removable end plates attachable to a modular pump housing. A bearing as...	10/30/2001
6217305	Screw pumps A screw pump provided with a first shaft and spaced therefrom and parallel thereto a second shaft mounted in a pump body. A first rotor is mounted on the first shaft and a second rotor mounted on the second shaft. Each of the first and second rotors havin...	04/17/2001
6213745	High-pressure, self-lubricating journal bearings A journal bearing comprises a body having a central longitudinal axis, a cylindrical inner surface coaxially disposed around the longitudinal axis and defining an axial bore, and an outer surface including a peripheral planar section. A lateral face is di...	04/10/2001
6183231	Clean-in-place gear pump A gear pump having shafts mounted with rolling element bearings and having mechanical seals on the face of the gears provides improved "clean-in-place" ability. Preferably, washer-like seals are mounted on the face of the gears with a suitable adhesive an...	02/06/2001
6095781	Timed element, high pressure, industrial rotary lobe pump A dual shaft, timed element high pressure industrial rotary lobe pump is provided. Lubricated sleeve bearings are located adjacent to the pumping elements. If the sleeve bearings are disposed on both opposing sides of the pumping elements, the lobe pump o...	08/01/2000
6010321	Rotary mower spindle and hydraulic motor A gear motor has a hydraulic oil drain path through bearings which support the spindle and mounted mower blade. The drain path is through two plain bearings and two opposed thrust bearings to a low pressure port located adjacent to the spindle shaft seal....	01/04/2000
5924854	Gear pump channel arrangement for tempering media In order to cool the slide bearing area for the slidable bearing of a gear pump shaft, a slide bearing bush with a slide bearing area and, in the case of the guiding-through of a shaft, a sealing area extends in one piece integrally to the outside, and a ...	07/20/1999
5810571	High performance oil pump An oil pump for high performance internal combustion engines suitable for use with race cars and the like wherein extended wear and tolerance maintenance is achieved by supporting the pump gears on shafts extending through the gears. Balanced dual support...	09/22/1998
5702234	Fluid pump with bearing set having lubrication path A gear pump is disclosed having an integrated gear cavity and bearing receptacle that includes a fluid path for lubricating the bearings. The preferred embodiment includes a helical gear pump having a manifold with inlet and outlet ports. The integrated g...	12/30/1997
5692888	Gear train mechanism having reduced leakage A gear train mechanism includes a housing having side walls that are made of a material exhibiting a modulus of elasticity of at least 140 GPa. A pair of shafts is supported by slide bearings in the housing and exhibit a length of at least of 1.3 times th...	12/02/1997
5641281	Lubricating means for a gear pump An improved self-lubricating bearing arrangement for gear pumps utilizes a system of material feed channels and reservoir pockets to divert a portion of the material being pumped from the pressure side of the intermeshing gears to lubricate the gear-suppo...	06/24/1997
5505591	Apparatus for processing materials An apparatus for processing materials, such as mixing or homogenizing fluids or dispersing a fluid in a viscous material, comprises a housing having bores and at least one inlet port and an outlet port disposed in the housing and in fluid communication wi...	04/09/1996
5391068	Gear pump A gear pump (11) is disclosed of the type comprising a housing (15,17) defining gear cavities (25) in which are rotatably disposed first (27) and second (29) gears. Each of the gears includes a gear portion and a generally cylindrical portion (37,39) on o...	02/21/1995
5334097	Toroidal type continuously variable transmission supported by a common bearing and reaction stationary shaft In a toroidal type continuously variable transmission having an input disk, an output disk and power rollers sandwiched and frictionally engaged between the input and output disks so as to transmit rotational power therebetween at a transmission ratio var...	08/02/1994
5120206	Gear metering pump for compounded elastomeric material A gear metering pump for delivering precise amounts of a compounded elastomeric material into a die. The gear pump has a housing formed with a hollow interior chamber containing a pair of rotating meshing gears mounted on shafts, one of which is power dri...	06/09/1992
4986740	Mechanical supercharger having a thrust bearing In a mechanical supercharger having rotors mounted on rotor shafts, the rotor shafts are rotationally and axially supported in the supercharger housing by first and second sliding bearings. The first sliding bearing includes an inner part fixed to each of...	01/22/1991
4917583	Bearing support for a twin-shaft pump A twin-shaft pump includes a working chamber; a first side plate and an opposite, second side plate bounding the working chamber; and two impellers accommodated in the working chamber and each having a first end face and an opposite, second end face. Each...	04/17/1990
4886437	Bearing arrangement of an external-axial rotary piston blower A bearing arrangement of an external axial rotary piston blower for gaseous medium having a housing which consists of an interior runaway surface and two side parts through which shafts project upon which pistons rotating therewith form working chambers. ...	12/12/1989
4846641	Readily-removable floating bushing pump construction A rotary pump has a block with inlet and outlet ducts and ports. A pump housing forming a pump cavity and accommodating working means of the pump, e.g., gears, is located on one side of the pump block, whereas drive means such as a magnetic coupling are p...	07/11/1989
4797078	Bearing arrangement of an external-axial rotary piston blower A bearing arrangement of an external axial rotary piston blower for gaseous medium having a housing which consists of an interior runway surface and two side parts through which shafts project upon which pistons rotating therewith form working chambers. T...	01/10/1989
4728273	Rotary piston compressor A rotary piston compressor, particularly Root's type compressor, includes a housing which is made of only two portions, one of which is cut-shaped and accommodates pistons rotating in opposite directions, and the other of which is formed as a cover closin...	03/01/1988
4682938	Gear pump bearings Variations in pump capacity of gear pumps due to varying leakage paths occurring in otherwise identical pumps as a result of the manufacturing operation are minimized without unduly hindering the fitting of the bearings through the pump housing by maintai...	07/28/1987
4674960	Sealed rotary compressor A sealed rotary compressor is provided which includes separate pump and gear chambers. Disposed within the pump chamber is a set of rotors operatively associated with a set of gears rotatably mounted within the gear chamber. A substantially pressure diffe...	06/23/1987
4605363	Gear pump with pivoted bushings that can deflect Rapid wear in a gear pump construction due to shaft deflection during pump operation and of the sort including a housing having an interior wall defining a pumping chamber, opposed inlet and outlet ports meshed gears within the chamber, a pair of shafts m...	08/12/1986
4553915	Low pressure lubrication system for fluid device There is shown a pressure loaded external gear pump with a low pressure lubrication system. The low pressure lubrication system utilizes the viscous shear pumping effect which occurs between the shafts and bearings to draw fluid from the inlet port, circu...	11/19/1985
4548557	Hydraulic pump or motor with interchangeable gears A hydraulic pump motor components including at least two co-acting gears arranged in wells which conform to the gears and which communicate with channels for supply and return oil respectively. To enable the displacement of the pump or motor to be readily...	10/22/1985

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Class 418/206.7 - With bearings