Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 251 - 300 out of 8,343

Document Document Title
WO2017009994A1
This gear pump is provided with: a driving gear, a first driven gear, and a second driven gear that are engaged with each other; a housing that houses those and that has formed therein a flow path including a first intake port, a second ...  
WO/2017/005634A1
A self adjusting gear pump (10) for an ice cream freezer and a control unit (20) for adaptively controlling the closing pressure (PCLOSE) of a pump for an ice cream freezer. The gear pump system comprises a pump casing (11), an inlet (12...  
WO/2017/003207A1
A rotary fluid machine according to the present invention can comprise: an outer rotor having a plurality of gear teeth provided on the inner peripheral surface thereof; a middle rotor having gear teeth, which are one fewer than the numb...  
WO/2016/202334A1
The invention relates to an electromotively-driven liquid pump, particularly an oil pump or reducing agent pump, comprising an electric motor (1), a displacement pump, particularly a gear pump (2), and an end shield (3) arranged between ...  
WO/2016/198793A1
The invention relates to a hydraulic system including a housing (10) in which a hydraulic apparatus (12) is arranged, main pipes (1, 2) for the hydraulic apparatus power supply and exhaust, a shaft (14) that is inserted in the housing, a...  
WO/2016/198036A1
The invention relates to a coupling element (10, 100) for the connection of a helix-shaped eccentric screw pump rotor (50) to a drive shaft, comprising a drive shaft receiving portion (11) and an oppositely arranged rotor connecting port...  
WO/2016/194933A1
A pump device is provided with a main pump (101) and a sub pump (102) for supplying hydraulic oil to a hydraulic machine (23), and a switching valve (40) for switching between supplying the hydraulic oil discharged from the sub pump (102...  
WO/2016/194598A1
The objective of the present invention is to provide a pump device and a method of manufacturing a pump device with which it is possible to reduce the number of components, reduce the required amount of labor, and reduce the size of the ...  
WO/2016/190121A1
The objective of the present invention is to provide an oil supply device in which a negative pressure in a pump chamber is reduced or eliminated when an electric oil pump is shut down, thereby preventing air from entering the pump chamb...  
WO/2016/185329A1
A gear pump comprising: - a pair of gears (2) able to interact with a fluid crossing the pump (1); - a housing seating (3) of said pair of gears (2), said housing seating (3) comprising a rest plane (30) of a shim (4); - a delivery condu...  
WO/2016/180570A1
The invention relates to a displacement pump (10), in particular a rotary vane pump, for conveying a fluid for a load (6). A lateral surface (24a) of a rotor (24) of the displacement pump (10) has at least one recess (41), which is desig...  
WO/2016/180319A1
An internal compensation component (100) for an internal gear pump (1000) is disclosed. The component (100) is configured to be sandwiched between a pump cover (300) of the internal gear pump (1000) and a gear pair (200) of the internal ...  
WO/2016/182873A1
A fluid working system such as a pump for displacing a working fluid such as hydraulic fluid or a motor using a working fluid is provided. The system may have a positive displacement machine which includes one or more working chamber wit...  
WO/2016/180571A1
The disclosure relates to a positive-displacement pump (10), in particular a vane-type pump for the delivery of a fluid for a consumer (6) of a steering system (1), wherein the rotor (24), the cam ring (20), the housing-side control plat...  
WO/2016/174164A1
The invention relates to a fluid pump (1), driven by means of an electric motor, which is coupled to a pump rotor of the fluid pump, wherein the electric motor is an axial-flux electric motor, the electric-motor rotor of which is also th...  
WO/2016/175242A1
In the present invention, polishing lines 71f are connected to an outer circumferential high-pressure region, but are not connected to each area that is a low-pressure region. In this configuration, the polishing lines 71f are connected ...  
WO/2016/166098A1
The invention relates to a pump device (1) comprising a pump insert with no dedicated housing and a receiving part. Said pump insert is inserted into the receiving part (2). In the receiving part, a suction channel (3) is formed for the ...  
WO/2016/166936A1
A fuel pump is provided with an outer gear, an inner gear (120) that meshes eccentrically with the outer gear and that has a receiving hole (126) extending in an axial direction, a rotating shaft, a contact part (165) that is formed to b...  
WO/2016/166985A1
The present invention relates to a gear pump or the like able to effectively prevent excess heat generation between a gear shaft and a journal bearing. A gear pump (1) that lubricates gear shafts (14, 15) on which gears (12, 13) are atta...  
WO/2016/157126A1
A geared positive-displacement machine (10), comprising a housing (11) provided with a suction port and with a discharge port, a pair of gearwheels (14, 15) that are housed and supported by respective shafts (16, 18) for the rotation in ...  
WO/2016/150414A1
The invention relates to a progressive cavity pump having an inner and an outer pump part (10, 4) as a rotor-stator assembly (2), having sealing lines (14a, b) formed between the rotor (10) and the stator (4), wherein the friction forces...  
WO/2016/152319A1
An oil pump (1) is provided with: an inner rotor (22) rotating with a shaft (20); an outer rotor (23) disposed in a loose-fit state within a pump chamber (31) and having teeth which are provided on the inner periphery thereof and which a...  
WO/2016/152402A1
Provided is a pump device configured so that vibration and noise can be reduced. A pump drive shaft connected to the rotating shaft of an electric motor through a joint is supported at a rotatably supporting section of a pump housing thr...  
WO/2016/149246A1
One example of a gerotor pump includes an inner rotor comprising multiple teeth, the inner rotor configured to rotate about a first longitudinal gerotor pump axis. The gerotor pump also includes a hollow outer rotor including an outer su...  
WO/2016/142597A1
The invention relates to a gear pump (1) comprising a pumping chamber (2) in which a first shaft (8) and a second shaft (9) are rotated about their respective axes (D8, D9), each of the first and second shafts (8, 9) supporting at least ...  
WO/2016/128926A1
A machine (1) comprises: - a rotor (10) exhibiting a preset number (n) of end zones (1 1); - a stator (20) exhibiting a recess (21) delimited by an inner surface (22a). The rotor (10) is eccentrically mounted internally of the recess (21...  
WO/2016/126251A1
A crescent internal gear pump includes a front cover, an end cover, a ring gear and a pinion gear disposed within a gear housing in an eccentric, intermeshing relationship. The housing is disposed intermediate the front cover and the end...  
WO/2016/124295A1
A pump unit for feeding fuel, preferably diesel fuel, to an internal combustion engine (3) is provided with a gear pump (7) having an inner gear (36) mounted inside a outer gear formed in a rotor (27) of an electric motor (24) for actuat...  
WO/2015/097502A9
A method for supplying barrier fluid in a subsea motor and pump assembly (100) disclosed, wherein desalinated water is extracted from or downstream of a reverse osmosis device (107) and supplied to the motor and pump assembly, alone or a...  
WO/2016/121334A1
A fuel pump is provided with an outer gear (30) having a plurality of inner teeth (32a), an inner gear (20) having a plurality of outer teeth (24a) and meshing eccentrically in an eccentric direction (De) with the outer gear, a pump hous...  
WO/2016/116836A1
Mechanical machine (1) with two or several rotors (8,9) which are each provided with at least one piston (17,18) which can rotate in a toroidal cavity (14) around a central axis (FF'), which cooperate with a machine shaft (3) having a ce...  
WO/2016/117316A1
According to the present invention, a pump housing (10) comprises sliding surfaces (12b, 18d) on which an outer gear (40) and an inner gear (30) slide, intake guide paths (13, 21) that are more recessed than the sliding surfaces and that...  
WO/2016/113813A1
An inner gear (20) has: sliding surface sections (25) provided on both axial sides of the inner gear (20), the sliding surface sections (25) sliding on a pump housing (10) and being provided in an annular manner in an outer peripheral se...  
WO/2016/112259A1
A liquid ring pump includes a housing defining an interior working space sized to receive a quantity of gas and a quantity of sealing liquid, a pump head coupled to the housing and defining an inlet channel, an outlet space, and a cone s...  
WO/2016/111040A1
A single-axis eccentric screw pump is provided with: a stator 9 having an inner surface formed in a female screw-thread shape; a rotor 10 capable of being inserted through the stator 9 and comprising a shaft body having a male screw-thre...  
WO/2016/108171A1
Pump for fluids (10) comprising a hollow body (11) having a substantially cylindrical cavity (25) where a rotor and at least one vane are mounted. The cavity is connected with at least one inlet port (112, 113) and with an outlet port (1...  
WO/2016/103663A1
A fuel pump is provided with: an outer gear having a plurality of inner teeth; an inner gear having a plurality of external teeth, the inner gear meshing with the outer gear while being eccentric in a direction of eccentricity; and a pum...  
WO/2016/106109A1
Rotor and/or stator designs and methods thereof to improve progressive cavity motor or pump durability. In one or more implementations, the rotor may have a variable outer diameter or variable stiffness along an axial length thereof. The...  
WO/2016/096755A1
The invention relates to an oil pump (1), in particular an electric or electromotive auxiliary pump for a motor vehicle, comprising a housing (2) having an inlet (15) on the admission side and an outlet (16) on the pressure side, in addi...  
WO/2016/091245A1
The invention relates to a gerotor pump for rotors with tooth tip diameters of from approximately 20 to approximately 40 mm which operate at delivery pressures in the range from 3 to 20 bar and are used to deliver barely lubricating medi...  
WO/2016/082814A1
The invention relates to a rotary piston pump having at least two counter-rotating rotary pistons which are arranged in a pump space on drive shafts. The rotary pistons each have a recess for the drive shafts. The respective drive shaft ...  
WO/2016/079241A1
The application relates to a system for conveying a medium having not less than two working machines (2, 2a, 2b, 2c) that each have not less than one carrier shaft (25, 35) with transport elements (22, 32) for the medium to be conveyed a...  
WO/2016/079239A1
The application relates to a device for conveying a medium having a working machine (2) and multiple carrier shafts (25, 35) with transport elements (22, 32) for the medium to be conveyed arranged on them, along with a drive (3) that set...  
WO/2016/075993A1
The present invention comprises: a stator 2 that is cylindrical and has a through hole 10, the through hole 10 in the shape of a female screw and being formed at a certain pitch in the flow direction from an inlet to an outlet; and a rot...  
WO/2016/075898A1
In the present invention, multiple pump chambers (40) are continuously connected as being prescribed between positions where inner teeth (300) of an outer gear (30) and outer teeth (200) of an inner gear (20) are closest to each other. A...  
WO/2016/074847A1
The invention relates to a rotary piston machine with a rotary piston (12) rotatable in a housing (3) with a housing outer surface (5). In order to provide a rotary piston machine with a rotary piston having a simple structure and cheap ...  
WO/2016/072418A1
Provided is an electric pump capable of driving a plurality of pumps using one driveshaft, and also capable of minimizing the drive force required from an electric motor. The electric pump has: one driveshaft rotatably driven by an elect...  
WO/2016/064569A1
A hydrostatic transmission system includes a hydraulic motor and at least one proportional control valve and at least one pump connected to the hydraulic motor to provide fluid to operate the hydraulic motor. The at least one pump includ...  
WO/2016/062538A1
The invention relates to a device for compensating pressure comprising a pump consisting of a rotational unit (1), a drive (3) and a load (2) which is connected thereto, said load comprising a flange (20) which is arranged opposite the c...  
WO/2016/056295A1
Provided is an internal gear pump. The shape of any one of a plurality of external teeth and a plurality of internal teeth of the pump is formed on the basis of formulae (1)-(5). Formula (1): r=ro-dr∙cosθ. Formula (2): Px=(ro-dr)+1/4d...  

Matches 251 - 300 out of 8,343