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Patent Searching and Data


Matches 501 - 550 out of 8,587

Document Document Title
WO/2013/113073A1
The present invention relates to an apparatus for pumping or compressing a fluid, the apparatus characterised by a compression chamber including an inlet and outlet, opposed front and rear vane members disposed inside said compression ch...  
WO/2012/097773A3
A mechanism for securing a drive unit for borehole pumps against torque is disclosed. The overload generated by the borehole pump and/or the drive unit can be entirely absorbed and/or neutralized by at least one securing element.  
WO/2012/094460A3
In an oil-sealed bearing assembly in the bearing section of a mud motor, in which a mandrel (20) is rotatably disposed within a cylindrical housing (30), a cylindrical sleeve (90) is disposed coaxially and rotatably around the mandrel (2...  
WO/2013/054263A3
A rotary vacuum pump, for instance a vane pump, has at least one circumferential groove (6) between facing side surfaces of the rotor (2) and of the rotor guide (3) for receiving a lubricating and sealing fluid. The circumferential groov...  
WO/2012/107279A3
The invention relates to a sealing element for a planetary rotation machine for sealing a lever which is guided in an annular gap and can be rotated about a rotational axis, wherein the sealing element is rotationally symmetrical relativ...  
WO/2012/084684A3
The invention relates to a transmission unit comprising a planetary gear set which comprises a plurality of gear elements and is designed as a pump, which brings about delivery of hydraulic fluid from a suction chamber to a pressure cham...  
WO/2013/105360A1
The present invention addresses the problem of providing an electric oil pump having a structure with which contaminants in lubricating oil can be removed without forming a new compartment or passage. This electric oil pump is equipped w...  
WO/2013/105996A1
A fluid pump having a pump motor, pump housing, and pump seal enclosure. The pump housing includes an internal pumping chamber, a suction orifice in flow communication with the pumping chamber, a discharge orifice in flow communication w...  
WO/2012/116779A3
The invention relates to a rotary slide valve (1) having a flat main body (10) which when used properly is mounted and/or disposed on a rotor (2) within a stator (3) and comprises a first edge (12, 12') facing a first running surface (14...  
WO/2012/116016A3
Pumps are disclosed that include a pump housing and at least one movable pumping element situated in the housing. The pumping element(s) are magnetically driven by magnetically coupling an external magnet driver (e.g., a stator) to a dri...  
WO/2013/099505A1
Provided is a low cost electric oil pump which is configured without requiring the electric motor to have an oil-proof structure and from which an oil seal and an O-ring can be eliminated. An electric oil pump is provided with an electri...  
WO/2012/066483A3
Disclosed is a pump arrangement which has a magnetically drivable micropump (P) for delivering a liquid medium and which has a bearing holder (22) as a base part. An outer magnet (44) and an inner magnet (40) are provided which transmit ...  
WO/2013/089203A1
[Technical Problem] Provided is an oil pump rotor that can embody the improvement of noiseless properties and volume effects. [Technical Solution] When a base circle (bi) of an inner rotor has a diameter (φbi), a first external rolling ...  
WO/2012/089436A3
The invention relates to an internal gear pump having a sickle-shaped separator (7) which, in a sickle-shaped pump chamber between an internal gear and a pinion of the internal gear pump, separates a suction region (8) from a pressure re...  
WO/2012/072746A3
The invention relates to an impeller pump having a housing with an inlet and with an outlet and having an impeller wheel with a multiplicity of elastic impeller blades. The cross section of the inlet and of the outlet on the side facing ...  
WO/2012/130225A3
The invention relates to a drive unit (3) for a submerged oil pump comprising a housing (7), a motor compartment (9) enclosed by the housing (7) and a rotor (13) disposed in the motor compartment (9), wherein a first fluid path (35) from...  
WO/2013/077400A1
This pump is configured in such a manner that a through-hole is formed in a housing having an oil passage formed therein, and a pump unit is attached to the through-hole.  
WO/2013/077398A1
A hollow seal member, which makes contact via an elastic body within a shaft hole formed in a housing and makes sliding contact with the outer circumference of a drive shaft, thereby sealing against the leakage of liquid from a pump cham...  
WO/2012/076099A3
The invention relates to a gear shaft assembly, having a shaft which has a cylindrical lateral surface on which an external gear is arranged in a rotationally fixed manner surrounding the shaft and which coaxially at one end has a torque...  
WO/2012/084437A3
The invention relates to an internal gear pump (1) for a hydraulic vehicle brake system. The invention proposes that axial discs (17) which, by the exertion of pressure on the outer sides thereof, are pressed against gearwheels (2, 4) of...  
WO/2013/077399A1
This discharge valve structure comprises: a valve body; a sheet member provided with a sheet surface on which said valve body is seated, and a sheet hole through which a fluid flows; an elastic body that impels the valve body to the shee...  
WO/2013/071996A1
The invention relates to a pressure-encapsulated pump housing (10) that comprises a separating can (12) for sealing off said pump housing (10) on an end-face. This pump housing (10) is designed to receive a pump shaft (30), and the can (...  
WO/2012/059303A3
The invention relates to a feed pump (1; 2; 3) having a drive unit (9; 11), a coupling unit, and a pump unit (10) comprising a pump rotor (13), wherein the coupling unit (12) couples the drive unit (12) to the pump rotor (13), wherein th...  
WO/2013/069144A1
Provided is an internal-gear-type oil pump for a vehicle, the oil pump being provided with a driven gear in which the self-aligning effect of the driven gear can be obtained while preventing the fluid friction acting on the driven gear f...  
WO/2012/055734A3
The invention relates to a vacuum pump (1), in particular a screw pump, comprising two displacement body shafts (2, 3) which are drivingly coupled and drive displacement bodies (13, 14), and a motor having a motor rotor (19), a motor sha...  
WO/2011/117154A3
A gear pump is described with a plurality of gearwheels which engage into one another in order to convey a medium and are held rotatably in a pump housing. One of the gearwheels is driven by a pump shaft which can be coupled to a drive v...  
WO/2013/058223A1
This internal gear pump is composed of an inner rotor with n teeth, and an outer rotor with n + 1 teeth. The tooth profile of the inner rotor delineates a trochoidal curve (T) according to the locus of fixed points separated only e from ...  
WO/2013/053062A1
A pump comprises a housing having an inner contour wall defining a fluid chamber. A rotor mechanism is positioned within the fluid chamber and comprises a belt and a rotatable rotor assembly. The belt is mounted to the rotor assembly. A ...  
WO/2013/054263A2
A rotary vacuum pump, for instance a vane pump, has at least one circumferential groove (6) between facing side surfaces of the rotor (2) and of the rotor guide (3) for receiving a lubricating and sealing fluid. The circumferential groov...  
WO/2013/050491A1
A pump comprises a housing (10) and a rotor (11) that rotates in the housing. The housing (10) has a fluid inlet (14) and a fluid outlet (15). The rotor (11) includes two shaped surface (21, 22; 50a, 50b, 50c) radially inwardly of the ho...  
WO/2011/128165A3
The invention relates to an electric delivery pump for delivering a fluid medium, in particular for delivering fuel in a fuel injection system. Said delivery pump comprises a pump unit and a drive unit which has a motor provided with a p...  
WO/2012/092914A3
The invention relates to a device for transmitting torques to a polished rod and for accommodating axial loads of a polished rod and/or a hollow shaft for a borehole pump. The transmission of the torque and/or the accommodation of the ax...  
WO/2013/051448A1
Provided is a vane pump configured so that fluid pressure occurring on the side on which the vane ring of the rotor is provided and fluid pressure occurring on the side opposite said side are equal. A vane pump has: a rotor; slits which ...  
WO/2012/034759A3
A delivery unit is already known, which comprises a drive shaft and a rotor driven by the drive shaft. The rotor is rotatably arranged in a stator housing, wherein the rotor has a toothing on the end face of said rotor that is remote fro...  
WO/2012/093274A3
A gerotor assembly (13) includes a star (14), a ring (12), and an annular plug (18), as well as an o-ring (16). The star (14) defines a center opening (20) of a first diameter which is connectable to a low-pressure fluid reservoir (40). ...  
WO/2013/041777A1
The invention relates to a machine for continuously compressing liquid or gaseous fluids, without lubrication, using a semi-spherical circular wheel which supports vanes and is guided in a semi-spherical circular chamber that is eccentri...  
WO/2013/037535A1
The invention relates to a gear pump for conveying a fluid medium, more particularly for conveying fuel in a fuel injection system, which has a pump unit and a drive unit arranged together in one housing unit, wherein the drive unit comp...  
WO/2013/037540A1
The invention relates to a pump, in particular an oil pump (1) for an internal combustion engine, comprising a pump housing (3) designed to receive a pump device comprising a pump shaft (5), an electric motor (2) being connected to the p...  
WO/2013/037534A1
Disclosed is a pump (5) that has an electric motor (4) and is used to deliver a fluid, in particular in a motor vehicle. Said pump comprises at least one impeller (18) that has delivering elements (19) and can rotate about an axis of rot...  
WO/2011/124213A3
The invention relates to a rotary piston pump (20) which comprises at least one motor (22) having at least two counter-rotating rotary pistons (32). The at least two rotary pistons (32) are housed in an oval pump housing (26). The at lea...  
WO/2013/039770A1
A gerotor pump assembly includes a gerotor pump (26) and a relief valve assembly (60). The relief valve assembly (60) includes a relief valve inlet (82) in fluid communication with a compression portion (44) of the pump housing (38), a r...  
WO/2012/101588A3
A pumping assembly for feeding oil under pressure to a user is defined by a gear pump (2), which is actuated by an electric motor (3), and has a pair of gears (4), which are coupled to each other within a pump body (9), and are each prov...  
WO/2013/007233A4
The invention relates to a gear ring pump, in particular for use in small pump assemblies which are preferably driven by an electric motor, which are produced as pump kits, and which are used in vehicle and engine construction. The aim o...  
WO/2011/117087A3
Delivery units are already known, having a drive rotor and an output rotor driven by the drive rotor, which are rotatably mounted in a rotor housing and interact in a meshing manner via spur toothing in each case, at least one of the two...  
WO/2012/038199A3
The invention relates to a pump (5) comprising an electric motor (4), especially for a motor vehicle, for circulating a fluid, said pump comprising an impeller wheel (18) that has conveying elements (19) and is used to carry out a rotati...  
WO/2013/015150A1
Provided is an oil pressure circuit for transmissions that is designed to limit malfunctions and reduction in oil pressure in the oil pressure circuit and to stabilize oil pressure in the oil pressure circuit while limiting the complexit...  
WO/2011/131598A3
The invention relates to a vane cell pump (1) having a pump housing (26) and a rotor (10), which is arranged in a hollow space (27) of the pump housing (26) along an axis of rotation (21), wherein the pump housing (26) comprises a first ...  
WO/2013/013883A2
The invention proposes a gearbox pump (1), in particular a gearbox oil pump of an automatic gearbox of a motor vehicle, which comprises a pump housing (2) and a pump cover (3) or oil-guiding flange and in the case of which, for a gear pu...  
WO/2013/007233A1
The invention relates to a gear ring pump, in particular for use in small pump assemblies which are preferably driven by an electric motor, which are produced as pump kits, and which are used in vehicle and engine construction. The aim o...  
WO/2012/173488A1
Screw type liquid ring pump (1 ) with an integrated grinder or macerator (2), including a pump housing (3) with an inlet (5) and an outlet (7) and an, inside the housing, rotating helical screw rotor (4), which rotor at one end, the inle...  

Matches 501 - 550 out of 8,587