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WO/2018/019587A1 |
The invention relates to an external gear pump (1) having a pump housing (2). An inlet (2a), an outlet (2b), and a working chamber (6) are formed in the pump housing (2). A first gear (11), which is arranged on a first shaft (21), and a ...
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WO/2018/021232A1 |
An electric pump according to an aspect of the present invention is provided with a motor, a pump, an electric pump case, a pressure sensor apparatus that measures the pressure of a fluid pressurized by the pump, and a circuit board. The...
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WO/2018/018714A1 |
A pump for a shell-and-tube heat exchanger comprises a pump body (1), a driving disc (2), a driving shaft (3), and a reset lever (4). The driving shaft (3) is disposed offset from the center of the driving disc (2). The pump body is prov...
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WO/2017/221567A1 |
A lead valve (5) is provided with a valve (50) having a free part (501) capable of elastic deformation, a stopper (51) that restricts the deformation of the free part (501), a seat member (2) having a seat part (221) sealed in by the fre...
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WO/2017/220696A1 |
A disc-like shape gasket (42) with a front face (46) and a rear face (44) radially extending about a main axis (X) from a peripheral outer edge (48) to an inner edge (50), surrounding a central opening (52), shaped (62) so as to be sligh...
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WO/2017/217224A1 |
A vane pump (100) is provided with: a rotor (2); a plurality of vanes (3) that are provided so as to be able to reciprocate with respect to the rotor (2); a cam ring (4) that has an inner peripheral surface (4a) on which the tips of the ...
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WO/2017/217223A1 |
Provided is a vane pump (100) wherein a suction path (30) has: an outer peripheral path (31) formed along the outer periphery of a cam ring (4); and two suction ports (33a, 33b) open to a pump chamber (6) and conducting to the pump chamb...
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WO/2017/210779A1 |
A progressing cavity pump has: a stator; a rotor; the rotor having a first axial operating position within the stator in which a first axial part of the rotor aligns with a first axial part of the stator to form an active pump section ad...
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WO/2017/213035A1 |
Provided is an oil pump configured so that a drive shaft can smoothly rotate, the drive shaft extending through and connecting to a pump rotor and being driven by an electric motor. The drive shaft is provided with: a support shaft secti...
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WO/2017/195584A1 |
Provided are a drive device and a pump device, capable of reducing the influence of a magnetic field on a circuit board by a spring coil despite a simple structure without a projection-like spring-receiving part. The pump device 10 compr...
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WO/2017/186499A1 |
The invention relates to a coupling (300) for detachably connecting two shafts by axial movement of the shafts in relation to each other, comprising a first coupling half (100), which can be connected to a first shaft for conjoint rotati...
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WO/2017/185936A1 |
Provided are a water pump, a connection structure between a pump body and a rotor, the rotor, a side plate, a damper, and a nozzle. The rotor (18) comprises a rotor body (1802), a mounting hole is provided in the center of the rotor body...
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WO/2017/187928A1 |
This compound pump is provided with: a housing (H); a first pump unit (PU1) disposed within the housing and including an inner rotor (50) and an outer rotor (60), which engage with each other; and a second pump unit (PU2) disposed within...
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WO/2017/186497A1 |
The invention relates to an eccentric screw pump (100) comprising a pump rotor (107) and a pump stator (109), wherein the pump stator (109) defines a hollow space in which at least one part of the pump rotor (107) is rotatably arranged, ...
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WO/2017/186495A1 |
The invention relates to a household appliance comprising a eccentric screw pump (101), said eccentric screw pump (101) comprising a stator (108) and a moveable rotor (102) which is associated with the stator (108), the rotor (102) compr...
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WO/2017/189022A1 |
A modular rotor assembly for a screw pump including a power rotor and an idler rotor having respective first ends adapted to be disposed in a suction side of the screw pump and respective second ends adapted to be disposed in a discharge...
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WO/2017/182175A1 |
The invention relates to an internal gear pump (1) for a slip-regulated, hydraulic vehicle brake system. According to the invention, one end of an abutment pin (18) which supports a separating piece (sickle 11) between a pinion (3) and a...
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WO/2017/179079A1 |
The present invention concerns a hollow disc pump that foresees: An impeller (9); A rotating shaft (3); Means (4, 5, 30, 36) to connect eccentrically the impeller (9) to the rotating shaft (3) in such a way that the impeller (9) can be c...
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WO/2017/174242A1 |
A positive-displacement pump (10) for conveying a fuel is presented, wherein the positive-displacement pump (10) comprises a pump chamber (30) and a pump rotor (65) which is mounted rotatably in the pump chamber (30), which pump rotor ca...
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WO/2017/163654A1 |
An automatic transmission is equipped with an oil pump (4) driven by a travel drive source. As an air vent structure for venting air bubbles contained in the automatic transmission fluid (ATF) during operation of the pump, the oil pump h...
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WO/2017/165459A1 |
The vane pump assembly includes a housing with an inner wall that surrounds an open chamber. A rotor is rotatably disposed in the open chamber and has a circular shape when viewed in cross section. A first pair of vanes are received in t...
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WO/2017/160388A1 |
A submersible well pump assembly (11) has a pump (19) driven by an electrical motor (15). The motor has a number of rotor sections (35) axially separated from each other by radial bearings (39). Each of the rotor sections has disks (45) ...
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WO/2017/159135A1 |
A hydraulic device comprises: a pair of helical gears (20, 25); a body (2) for accommodating the gears (20, 25); bearing members (40, 45) for supporting the gears (20, 25); side plates (30, 135) provided between the gears (20, 25) and th...
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WO/2017/154023A1 |
The present invention relates to motor with positive displacement helical pump inside motor shaft comprises a stator body (5) within which the rotor (14) is rotatably mounted, helical rotating shaft (15) rotatably positioned inside the r...
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WO/2017/154490A1 |
Provided is a variable capacity vane pump that can minimize fluctuations in discharge flow rate. In this variable capacity vane pump, among a plurality of straightening walls 33, 34, 35 provided inside a discharge pressure chamber 202, a...
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WO/2017/154438A1 |
Provided is a variable displacement pump comprising: a first control oil chamber 21 for applying force by internal oil pressure, to a cam ring 5 in the direction in which the amount of change in the volume of pump chambers 13 is reduced;...
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WO/2017/143459A1 |
A downhole pumping apparatus comprising a positive displacement rotary gear pump (RGP), driven by a rotating rod string or a submersible electric motor.
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WO/2017/144499A1 |
The invention relates to a pump assembly (1), at least comprising a first housing (2), in which at least one first drive means (3) for conveying a fluid (4) is rotatably mounted, wherein a first drive shaft (5) of the first drive means (...
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WO/2017/144190A1 |
A pumping assembly to feed fuel, preferably diesel fuel, to an internal combustion engine is provided with an electric gear pump (7) having two gears (33, 37) mounted one inside the other, and of which one is an annular rotor (33) mounte...
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WO/2017/139152A1 |
A submersible well pump assembly (15) has upper and lower seal sections (19, 20) connected between the pump (21) and a motor (17). The seal sections have drive shafts (37, 55) with thrust runners (39, 57) that engage thrust bearing bases...
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WO/2017/135008A1 |
A screw pump (101) is provided with a male screw (4), a female screw (5), a motor (6), a journal (7), a bearing member (8), and a case (201). The motor (6) has an output shaft (64) for transmitting torque to the male screw (4), and can d...
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WO/2017/129794A1 |
The invention relates to a rotary piston pump comprising a housing with a housing interior, an inlet opening, and an outlet opening; a first rotary piston which is mounted within the housing interior in a rotational manner about a first ...
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WO/2017/132007A1 |
An electrical submersible pump assembly (21) has modules, including a pump (23), a seal section (29) and a motor (31). A rotatable first drive shaft (33) in a first one of the modules has a splined end (37) that mates with a splined end ...
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WO/2017/110671A1 |
In order to reduce the axial-direction size of an oil pump driving device capable of driving the same oil pump by means of an engine or an electric motor, in the present invention a transmission case (2) has an opening (31) formed in a p...
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WO/2017/108470A1 |
A pumping assembly to feed fuel, preferably diesel fuel, to an internal combustion engine is provided with an electric gear pump (7) having a pump body (24), a closing lid (27) to close the pump body (24), a stator (29), an annular rotor...
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WO/2017/110221A1 |
The present invention is provided with a stator 32 wherein an internal peripheral surface is formed as a female thread, a rotor 33 comprising a male screw shaft body that can be inserted into the stator 32, an external housing 31 capable...
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WO/2017/104844A1 |
One embodiment of this pump device comprises: a shaft that rotates around a central axis extending in the axial direction; a motor unit that rotates the shaft in both directions; and a pump unit that is positioned on one side of the moto...
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WO/2017/104843A1 |
One embodiment of this pump device comprises: a shaft; a motor unit that rotates the shaft in both directions; and a pump unit. The pump unit has: a pump gear; a pump body having a through-hole having an opening on one side in the axial ...
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WO/2017/104420A1 |
This fuel pump is provided with: an outer gear; an inner gear; a housing that houses both the gears; a rotary shaft (3a) driven to rotate by an electric motor; and a cylindrical sliding bearing (50) that radially bears the rotary shaft (...
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WO/2017/097898A1 |
The invention relates to a heatable screw spindle pump (10) comprising a housing (12) surrounding a delivery chamber, at least one rotor (18) having a thread-type profile, a housing insert (20) arranged in the housing (12) and surroundin...
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WO/2017/092862A1 |
The invention relates to an external gear pump (1), having a driving first pump gear (2) and having a second pump gear (3) driven by the first pump gear (1), which intermesh with each other to convey a fluid from a suction side (7) to a ...
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WO/2017/095052A1 |
A compression type vane pump of the present invention comprises: a housing main body (10) in which an inlet (11) through which fluid flows in is formed on one side thereof, an outlet (12) through which fluid is discharged is formed on an...
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WO/2017/093073A1 |
The invention relates to pumping units, comprising a pump chamber, in which a rotor is rotatably arranged, which rotor is rotatably supported on a drive shaft and is driven by the drive shaft by means of a driver coupled to the drive sha...
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WO/2017/079197A1 |
An apparatus and method prevent entrained solids from entering a pump by directing a process stream through an active upstream filter that removes the solids, and then through a downstream idle filter where the process stream purges the ...
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WO/2017/077798A1 |
The objective is to provide a gear pump device for rubber extrusion wherein burning of rubber at a gear support part is prevented, and the maintenance interval is increased. In the present invention a bush ring 5 is inserted into a gear ...
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WO/2017/077948A1 |
A pump housing (70) is provided with: a pair of sliding surfaces (72, 82) which sandwich an outer gear (30) and an inner gear (20) therebetween from both sides so that both the gears (20, 30) will slide on the pair of sliding surfaces (7...
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WO/2017/079155A1 |
Overheating of a process liquid retained in a reservoir of a multiphase pump during extended gas slugs is avoided by circulating a cooling liquid in thermal contact with a process liquid through an external cooling apparatus, which can i...
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WO/2017/072331A1 |
Disclosed is a gear pump (10) comprising a contra rotating gear element pair (30 and 40) mounted within a housing (20), each gear element having complementary gear teeth sets providing a pumping action in use, said teeth being formed fro...
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WO/2017/073205A1 |
An external gear fuel pump that draws in and boosts the pressure of a fuel having a lower viscosity than diesel oil, and discharges the fuel to an engine. This fuel pump has a pair of gears (4, 5), and a pair of side plates (11, 12) arra...
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WO/2017/068901A1 |
A vane pump 100 comprises a rotationally driven rotor 2, vanes 3 that are slideably inserted into the rotor 2, pump chambers 6 that are defined by spaces between neighboring vanes 3, inlet ports 14, 15 that guide operating fluid into the...
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