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Patent Searching and Data


Matches 551 - 600 out of 8,343

Document Document Title
WO/2011/069713A3
An external gear pump (14) comprises two rotatable gear wheels (100, 102) that mesh with each other. According to the invention, at least one gear wheel (100) is mounted, in relation to the rotational axis (132) thereof, in the radial di...  
WO/2011/032766A3
Disclosed is a gear pump (10) comprising two rotating pump elements and a first housing piece (12) that includes a cavity (13) for accommodating the pump elements and a radial boundary wall (20) which lies radially outside at least one p...  
WO/2010/108959A3
Rotary pump intended to pump a fluid in a system on board a vehicle and comprising a stator, a rotation axle attached both to a mechanical pumping element and a magnetic rotor, and electrical connections. According to the invention, the ...  
WO/2011/121045A2
The present invention refers to a variable displacement lubricant pump (10) for an internal combustion engine. The variable displacement lubricant pump (10) is provided with a housing (12) and a shiftable and basically circular control r...  
WO/2010/102724A3
The invention relates to a toothed wheel machine comprising a housing (2) for receiving two meshing and especially helical-toothed wheels (10, 12). Said toothed wheels are axially mounted in a sliding manner by axial surfaces (30, 32, 34...  
WO/2010/102722A3
The invention relates to a toothed wheel machine comprising a housing (2) for receiving two meshing and especially helical-toothed wheels (10, 12). Said toothed wheels are axially mounted in a sliding manner by axial surfaces (30, 32, 34...  
WO/2010/102723A3
The invention relates to a toothed wheel machine comprising a housing (2) for receiving two meshing toothed wheels (10, 12). Said toothed wheels are axially mounted in a sliding manner by axial surfaces (30, 32, 34, 36) between bearing b...  
WO/2011/110475A2
In order to improve a screw-type compressor, comprising a housing, at least one screw rotor which is arranged in a compressor housing of the housing, a lubricant sump which is arranged on the high-pressure side and in which lubricant is ...  
WO/2011/107086A1
The invention relates to a device for generating (2) compressed air for driving at least one medical hand-device, hand-piece, or handle, in particular a surgical hand-device for carrying out ophthalmological operations, for example a cut...  
WO/2010/092447A3
An external gear volumetric pump (10) comprising a pair of gears (12, 14) perfectly coupled together and each mounted on a respective support shaft (16, 18). Each support shaft (16, 18) is able to rotate around a respective axis (A-A, B-...  
WO/2011/096260A1
An oil pump configured so that the level of noise generated by the oil pump is lower than or equal to a predetermined level. An oil pump (1) comprises: an eccentrically provided outer rotor (2); an inner rotor (3) having outer teeth (3a)...  
WO/2011/093130A1
The objective is to provide a sealing device provided with an accumulated pressure relief function. In order to achieve the objective, a seal ring is combined with a back ring, and the back ring is comprised of a lip packing wherein one ...  
WO/2011/091537A1
Abstract Embodiments of the invention provide a system and method for induction heating a helical rotor of a progressing cavity pump in order to reduce the surface roughness of the rotor In order to heat the rotor most evenly. It is desi...  
WO/2011/012350A3
The invention relates to an internal gear pump (1) comprising an integrated electric motor (2), especially for a motor vehicle, for conveying a fluid, said gear pump comprising an internal toothed wheel (5) comprising an internal annular...  
WO/2011/074477A1
Disclosed is a gear pump wherein a driving rotor (2) driven by a drive source and a driven rotor (3) driven by the driving rotor are rotated while meshing with each other, to transfer working fluid. Only one of the driving rotor (2) and ...  
WO/2010/115518A3
The invention relates to a bearing sleeve for a gear machine having an inner surface as a sliding surface and an outer surface as a retaining surface for insertion into a bearing housing. In order to improve the bearing seat, the outer s...  
WO/2011/057345A1
The present invention relates to an apparatus which may be in the form of a pump or compressor and which can function to compress or accelerate a fluid such as air, gas, gaseous mixtures and/or liquid. In particular, the invention provid...  
WO/2011/057348A1
The present invention relates to a compressor or pump unit for the production or flow of compressed fluid and more particularly to a new uniquely designed compressor which has the capabilities to both draw fluid from an intake opening an...  
WO/2010/132154A3
A pump adapted for coupling in a fluid circuit between a source of coating material and a dispensing device. The pump includes an operating member which extends through a pump housing to a location adjacent the fluid circuit. The passage...  
WO/2010/122299A3
A pump comprises a housing (10, 210, 300, 410), the housing having an interior defining a rotor path (10, 210, 300, 410), an inlet (111, 211) formed in the housing (10, 210, 300, 410) at a first position on said rotor path, an outlet (12...  
WO/2011/046591A1
An internal combustion engine (1 1) drivably connected to a variable displacement and variable internal compression ratio supercharger (18) that supplies varying amounts of air to the engine air intake manifold (12) that can range select...  
WO/2010/126651A3
A pump system includes inlet chambers, an outlet chamber, and rotors disposed inside the inlet chambers and the outlet chamber to pump a process fluid from the inlet chambers to the outlet chamber and to direct the process fluid to a sep...  
WO/2011/035971A2
The invention relates to a pump (1) having an electrical motor (2), in particular for a motor vehicle, for delivering a fluid, comprising an impeller (5) having delivery elements (7), by which impeller a rotational movement can be perfor...  
WO/2011/036959A1
A drive device configured in such a manner that members for defining and forming a pump chamber can be joined to each other while requiring a low degree of liquid-tightness. A drive device is provided with a pump cover which is, while be...  
WO/2010/121866A3
A pump unit is provided with: a drive shaft (4) which is mounted such that it can rotate in a pump body (3) in order to operate both a piston pump which can feed a fuel, preferably diesel fuel, to an internal combustion engine, and a gea...  
WO/2011/029656A1
The invention relates to a pressfit connection (8) of a shaft (12) to a drive or driven element pressed thereon, characterized in that at least part of the shaft (12) comprises an axially extending recess at least in that axial longitudi...  
WO/2010/086267A3
The invention relates to a rotary piston engine comprising at least two rotors, a power component and a blocking component, which interact and which have spur gearings the number of teeth of which differs by one tooth, the rotors and an ...  
WO/2011/030849A1
An electric pump unit which is compact and is reduced in weight and cost. An electric pump unit is provided with a pump chamber (9) which has an oil suction opening (18) and an oil discharge opening (19) and is formed within a motor stat...  
WO/2011/016467A1
Disclosed is an electric pump unit for a transmission, provided with a pump which takes in and discharges oil, and an electric motor for pump drive which has: a motor shaft coupled to the pump; a motor rotor provided fixed to the motor s...  
WO/2010/078892A3
The invention relates to a pump (1) for delivering a fluid, particularly a metering pump (1) for metering a coating agent in a coating system, having a pump inlet for feeding the fluid, a pump outlet for discharging the fluid, a rotatabl...  
WO/2011/009216A1
A pump comprises a housing having an inner contour and defining an ovaloidal chamber with a rhomboidal rotor assembly positioned therein and being configured to rotate. The housing includes intake and exhaust ports in communication with ...  
WO/2010/060416A4
The invention relates to sliding vane pumps having a rotor which is mounted in a pump housing and driven by a shaft, a plurality of vane plates mounted on the outer periphery of said rotor and an outer ring surrounding the rotor and the ...  
WO/2010/123556A3
A fluid vane pump is provided which includes a housing providing a generally cylindrically walled control volume wherein the control volume has an inlet and outlet. A rotor is provided having a rotatable axis within a cylindrical wall co...  
WO/2010/148486A1
A device includes a ring having a tubular interior surface centred about an axis. The surface includes a plurality of axially extending, inward Iy- projecting ridges. On opposite sides of each ridge is a first port and a second port. A r...  
WO/2010/034491A3
The invention relates to a device for branching a fluidic partial flow off a main flow by means of a hydraulic pump (10), said device comprising individual main chambers (12,14,16,18,20) which are sealed from each other and divided into ...  
WO/2010/060416A3
The invention relates to sliding vane pumps having a rotor which is mounted in a pump housing and driven by a shaft, a plurality of vane plates mounted on the outer periphery of said rotor and an outer ring surrounding the rotor and the ...  
WO/2010/133339A1
The invention relates to a device for delivering a fluid in a hydraulic circuit (motor-pump aggregate), comprising a hydraulic pump disposed within a hydraulic circuit and driven by a drive motor, wherein the hydraulic pump (3) is connec...  
WO/2010/124541A1
A high-speed large-torque hydraulic blade motor, including a stator (1), a rotor (2), blades (3) and springs (7), where each blade (8) is arranged in the blade groove on the rotor (2). A spring (7) is disposed on the bottom of each blade...  
WO/2010/121866A2
A pump unit is provided with: a drive shaft (4) which is mounted such that it can rotate in a pump body (3) in order to operate both a piston pump which can feed a fuel, preferably diesel fuel, to an internal combustion engine, and a gea...  
WO/2009/150537A3
Rotary lobe pump and circumferential piston pump designs are disclosed where the drive and driven shafts are detachably connected to their respective rotors. The rotors are disposed in a pump or rotor casing, which is sandwiched between ...  
WO/2010/113410A1
Provided is a rotor drive mechanism wherein the dimension of a pump device in the longitudinal direction thereof is decreased and the volume of a fluid storage space within a casing is decreased; and the accuracy of a discharge rate can ...  
WO/2010/108959A2
Rotary pump intended to pump a fluid in a system on board a vehicle and comprising a stator, a rotation axle attached both to a mechanical pumping element and a magnetic rotor, and electrical connections. According to the invention, the ...  
WO/2010/072476A3
The invention relates to a pump unit (10) comprising a housing (12), which has a first housing part (20) and a second housing part (22) with at least one pump element (28) in the form of a gear (34), housed between the first housing part...  
WO/2010/103701A1
Provided is a uniaxial eccentric screw pump which can prevent the life of a bearing sliding portion from decreasing due to a thrust load applied from a high pressure side to a low pressure side. In the uniaxial eccentric screw pump (1), ...  
WO/2010/103993A1
Provided is a uniaxial eccentric screw pump which can prevent the life of a bearing sliding portion from decreasing due to a thrust load applied from a high pressure side to a low pressure side. In the uniaxial eccentric screw pump (1), ...  
WO/2010/057838A3
The invention relates to a fuel pump, especially the prefeed pump for feeding aircraft fuel to the high pressure pump, wherein the form-fit connection between the drive shaft (4) and the driven impeller (2) is produced by a regular, conv...  
WO/2010/019337A9
A pump rotor (40) for a screw pump, comprising a shaft (42), a thread (44) on the shaft, the thread comprising a groove (48) disposed on an outer surface thereof, and a seal (50) disposed in the groove. The seal and the groove are config...  
WO/2010/096924A1
An electric vane pump includes a first cover plate having a substantially planar first pump surface and a second cover plate coupled to the first cover plate defining a substantially planar second pump surface spaced apart from and exten...  
WO/2010/095505A1
Provided is an internal gear pump having an excellent seize resistance. An inner gear (30) driven by a rotary shaft (20) and an outer gear (40) are accommodated in a housing (10). The outer gear (40) functioning as an internally-toothed ...  
WO/2010/089614A1
The elastic rotor (Fig.1), composed of elastic spring (6) with one end firmly connected to shaft (13) and with the other end to carrying shell (5) via bearing (4), and of pressure shell (3) connected to sliding plate (8) by holders (9) w...  

Matches 551 - 600 out of 8,343