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WO/2011/129642A2 |
A test for operation over an extended period was performed on a high-power swing pump in which an independent seal device was employed, and a swing vane pump of a high-efficiency, pendulum-type wave power generating system was applied to...
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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...
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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 ...
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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...
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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)...
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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 ...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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 ...
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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 ...
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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), ...
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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), ...
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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...
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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...
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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 ...
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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...
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WO/2010/084537A1 |
A cover-equipped stator for a uniaxial eccentric screw pump is configured such that a condensate liquid accumulated between the outer surface of a stator and the inner surface of the cover when a high-temperature fluid is caused to flow ...
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WO/2010/078892A2 |
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 in the fluid, a pump outlet for discharging the fluid, and a r...
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WO/2010/070211A1 |
The invention relates to a device (1) for pressurising a fluid to be combined with a rotary power takeoff of a vehicle including a casing and at least one multiplication stage (4), said device comprising a frame (5) bearing at least one ...
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WO/2010/058234A1 |
A pump wherein at least a first engaging surface is formed on the housing adjacent to the pumping chamber. At least a second engaging surface formed on the pumping mechanism that frictionally engages the first engaging surface during mov...
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WO/2010/057838A2 |
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...
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WO/2010/051640A1 |
A submersible electric pump includes a housing adapted to be submerged within a fluid to be pumped having apertures extending therethrough. An electric motor stator is positioned within the housing in communication with the apertures and...
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WO/2010/045906A2 |
The invention relates to a pump, particularly a vane-type pump, comprising a rotor guiding at least one vane and resting against at least one pressure plate, which has at least one pressure through-hole and at least one under-vane throug...
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WO/2010/044416A1 |
An electric pump unit reduced in size, weight, and cost. An electric pump unit is provided with a motor rotor (20) extending outward radially from one end of a pump drive motor shaft (16) which is supported in a unit housing (1) by a be...
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WO/2010/040919A1 |
The invention relates to a rotary machine with a deformable rhomb, comprising a rotor (3) consisting of a deformable rhomb (4) contacting, with or without any clearance, the inner surface of a housing (1) and/or the outer surface of a ce...
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WO/2010/034491A2 |
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 ...
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WO/2010/007864A1 |
A vane pump reduced in size in the direction of the rotation axis of the pump. A vane pump (1) provided with a rotating section (4) having formed therein radial slits (7) for receiving vanes (8) such that the vanes (8) can project from ...
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WO/2009/156264A2 |
The present invention relates to a gear pump, for example a paint pump. The sealing of the drive shaft which is guided outward of the pump housing is carried out by a sealing means which is acted upon by a pressure medium. Said pressure ...
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WO/2009/140753A1 |
In a traditional vane pump a rotor is supported on a shaft which is in turn supported by a pair of bearings on opposing walls of a housing. Any misalignment in the bearings can cause premature wear and a loss of efficiency in the pump. P...
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WO/2009/135587A2 |
The invention relates to a pump (1), especially a vane-cell pump with a variable conveyor volume, said pump comprising a pump housing (3) and a lift ring (17) which is arranged in the pump housing and surrounds a rotor interacting with a...
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WO/2009/135714A1 |
The invention relates to an internal gear pump for delivering a fluid, comprising a pump housing (1) in which an internal geared outer gear (5) and an external geared internal gear (6) meshing with the outer gear are rotatably received, ...
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WO/2009/132412A1 |
A traditional compressor unit of the sealed type suffers in that a failure of either the motor or the compressor require both to be discarded Provided is a compressor (1) having a rotor assembly (3) withm which a rotor (24) is rotated on...
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WO/2009/130433A1 |
A variable flow gerotor pump having an annulus, a first rotor and a second rotor wherein one of the first and second rotors comprises a peripheral slot extending axially along at least part of the periphery of the rotor, to facilitate fi...
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WO/2009/127281A1 |
The invention relates to a vane pump or a vane compressor, having at least one vane supported displaceably within a rotor, wherein the rotor is supported eccentrically in a hollow cylinder, the vane end (4) frictionally contacting the in...
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WO/2009/115819A1 |
A stator for a helicoidal down-hole drilling motor is formed with a through-hole, in addition to the main stator bore. The through-hole can be a straight hole extending parallel to the axis of the stator, or a hole of helical form, the h...
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WO/2009/099584A1 |
A gerotor and methods for assembling the gerotor are disclosed. The gerotor includes a pump housing having a channel and a rotor positioning cavity, a pump shaft, an inner rotor, and an outer rotor. The pump shaft has central pump shaft ...
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WO/2009/091344A1 |
This invention relates to a Brushless DC Electric Fuel Pump (BEFP) for an internal combustion engine having a cooling system which transfers all the heat generated by its components to the heat conducting body parts and carrying the heat...
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