Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 1 - 50 out of 2,541

Document Document Title
WO/2019/220579A1
Provided is a multi-stage pump provided with an impeller and a guide blade part, wherein the loss of flow force in a fluid is suppressed, and pump efficiency is enhanced. The multi-stage pump is provided with a main shaft (3), impellers ...  
WO/2019/221907A1
An electric pump may include a stack of diffusers including a first diffuser and a second diffuser. The first diffuser includes a recess therein defining an inner recess surface substantially circumscribing a primary diffuser axis. The s...  
WO/2019/221610A1
A centrifugal pump in which a centrally placed impeller/shaft system is eliminated and replaced by one or more active propellers placed tangentially in the fluid-filled pump casing. The axial force from the propeller system sets the flui...  
WO/2019/215228A1
A fuel boost pump assembly (100, 200, 300) for an aircraft and an aircraft fuel system including at least one fuel boost pump is disclosed. The fuel boost pump assembly comprises a first inlet (101 201, 202) for receiving a first pressur...  
WO/2019/206580A1
The present invention relates to single-or multi-stage centrifugal pumps having novel disc-type balancing device for balancing the axial forces of the pump. The disc-type balancing device is provided with at least one annular groove (58)...  
WO/2019/204833A1
A regenerative blower-compressor includes an impeller mounted to a drive shaft within a housing including a channel extending from an inlet adjacent to a low fluid- pressure region of the channel to an outlet adjacent to a high fluid-pre...  
WO/2019/197108A1
The invention relates to a fluid energy machine unit (1) having a fluid energy machine (2) with at least two individual impellers (3, 4) or sets of impellers that are in each case coupled to one another; having a drive machine (5) which ...  
WO/2019/176426A1
A centrifugal pump (P) of the present invention comprises: first crossover blades (25) in which a static flow path (21) is formed over a diffuser flow path (22), a curved flow path (23), and a return flow path (24); and the same number o...  
WO/2019/171855A1
Provided is a drain pump mounting structure which suppresses the propagation of vibration of a motor to a mounting body to which the drain pump is mounted, thereby improving quietness during operation. This drain pump mounting structure ...  
WO/2019/171854A1
Provided is a water discharge pump attachment structure capable of preventing propagation of vibrations from a motor to an attachment body to which a water discharge pump is attached and ensuring silence during operation. This water disc...  
WO/2019/170518A1
A pump apparatus for a system housing (10) in a vehicle comprises a pump device (12a) arranged in a pump housing (12), which device can be driven by a motor (M) specific to the pump apparatus or an external motor, wherein at least the pu...  
WO/2019/160888A1
A well pumping assembly has a stator (13) mounted in a housing (33), the stator having an axially extending stator cavity (39). The stator has windings (127) that when powered create an electromagnetic field into the stator cavity. A pum...  
WO/2019/155744A1
[Problem] To provide a water discharge pump that can minimize the effects of impurities included in drain water. [Solution] A water discharge pump 1 has a housing 10 having an intake pipe 16 extending downward, and a motor 40 that rotate...  
WO/2019/153805A1
A two-stage centrifugal pump having a symmetrical impeller arrangement. The pump comprises: a pump assembly (1), a liquid inlet (2) and a liquid outlet (3) provided on the pump assembly (1), and a motor assembly provided within the pump ...  
WO/2019/152951A1
A compact and modular pressure boosting system has an inline submersible motor which can be vertically oriented. The pressure boosting system can be modularly configured with a variety of submersible motors, pump designs and pump stages,...  
WO/2019/137804A1
The invention relates to a turbomachine inner housing (TMI) for a radial turbomachine (RTM), wherein the turbomachine inner housing (TMI) comprises a partial joint (TF) along a longitudinal axis (X), in particular a rotor longitudinal ax...  
WO/2019/125834A1
An electrical submersible pump assembly (13) includes a motor (21) having a stator (27) with a bore (29) extending along a longitudinal axis (32). A shaft (31) with axially spaced apart rotor sections (33) extends longitudinally through ...  
WO/2019/116717A1
[Problem] To provide a motor for a drain pump, a manufacturing method therefor, and a drain pump having the motor, wherein misalignment between axes can be effectively suppressed in a structure in which a bearing is mounted to a resin mo...  
WO/2019/113541A1
A centrifugal blood pump uses the "double suction" arrangement of the blood flow channels, by dividing the blood flow across the impeller into two practically identical streams, one flowing across the upstream side of the impeller and th...  
WO/2019/111541A1
[Problem] To provide: a drainage pump motor which is capable of suppressing damage to a resin member caused by the oil of an oilless bearing, and also capable of suppressing defects caused by press-fitting the oilless bearing; and a drai...  
WO/2019/111542A1
[Problem] To provide a drainage pump rotating blade capable of suppressing noise while effectively increasing water-pumping ability; and a drainage pump having this drainage pump rotating blade. [Solution] A rotating blade 30 of a draina...  
WO/2019/106991A1
[Problem] To provide a drain pump wherein noise caused by a variation in the pressure of drain water within a pump chamber is suppressed to improve quietness during operation. [Solution] A drain pump 1 has a rotating blade 30 accommodate...  
WO/2019/096729A1
The invention relates to a pump assembly, in particular a slide ring seal assembly, for supplying a fluid, in particular to a slide ring seal (2a, 2b), comprising precisely one drive (11) with a driveshaft (24), a first axial pump (21) w...  
WO/2019/084572A1
An integral motor pump module directs at least 90% of its rotor discharge over at least 50% of its motor housing surface, thereby cooling the motor with little or no need for a separate flow path. The discharge can flow through an annulu...  
WO/2019/079070A1
Centrifugal pump sealing surfaces are described. A multi-stage centrifugal pump includes an impeller between a first diffuser and a second diffuser, a plurality of sealing surfaces formed by at least one diffuser inlet ring of the first ...  
WO/2019/063552A1
A pump is disclosed. The pump comprises at least one impeller; at least one diffuser; and at least one wear ring positioned between the at least one impeller and the at least one diffuser and removably coupled to the diffuser, the at lea...  
WO/2019/058669A1
According to the present invention, an impeller (5) is provided with: a main plate (35) that is fixed to a rotating shaft (1); a shroud (37) that has a liquid inlet (30) and that faces the main plate (35); and a plurality of blades (38) ...  
WO/2019/049398A1
Provided is a multistage centrifugal fluid machine with which the work of assembling an inner casing to a high-pressure-side head flange can be carried out efficiently. The multistage centrifugal fluid machine 100 comprises a rotor 3 to ...  
WO/2019/042638A1
The invention relates to an electric coolant pump, preferably for use as a supplementary water pump in a vehicle, characterized in that a radial mounting of the shaft (4) is provided by means of a coolant-lubricated radial sliding bearin...  
WO/2019/045894A1
An axial thrust balancing mechanism for a rotating shaft apparatus such as a rotary pump provides self-regulating thrust compensation while avoiding contact and wear between rotating and static elements. A rotor fixed to the shaft includ...  
WO/2018/190734A8
The invention relates to a device that pumps fluid using electromagnetic fields together with smart fluids for a wide range of applications. The device consists of a cylindrical chamber having inlet and outlet check valves, a pair of fie...  
WO/2019/018760A1
A pump for use in a motorized pumping system has a pump shaft with a lower ring groove and an upper ring groove. The pump also includes a lower adapter and an upper adapter. The lower adapter has a pair of lower ring halves configured to...  
WO/2019/007596A1
The invention relates to a method for operating a pump for process fluids circulated in a machine tool, comprising a housing (10) having a pump chamber (14) and an intake port (12) for the process fluid, a shaft (22) rotatably mounted in...  
WO/2019/009122A1
The purpose of the present invention is to provide a drain pump which, even when reduced in size, can prevent entry of water into a motor. For this purpose, a drain pump of the present invention is provided with: a motor provided with a ...  
WO/2019/002358A1
The invention relates to a bearing housing (115) for a turbomachine (100), wherein the bearing housing (115) comprises a bearing axis (LA), a bearing chamber (200) for accommodating a bearing (116, 120, 121), and a lubricant chamber (202...  
WO/2018/229421A1
The invention relates to a turbopump for a spacecraft, comprising: an intake pipe (1) opening into an intake cavity (2) defined by an inner wall; an impeller; an induction pipe (3) extending from the intake cavity (2); and an inducer (4)...  
WO/2018/209011A1
A multi-stage pump featuring first and second stages, each stage having an impeller arranged on a rotor of the pump, each impeller having a hub-side and an eye-side, and each impeller configured to pump a liquid through the pump that app...  
WO/2018/204350A1
A double suction impeller features an impeller main body and an impeller suction eye. The impeller main body may include a suction eye adapter coupling member. The impeller suction eye may include a removable suction eye adapter having a...  
WO/2018/201132A1
A pump features a trimmed impeller having a trimmed impeller diameter that is less than a standard full-sized diameter of a standard full-sized impeller for a standard full-sized casing, and having a circumferential outer edge; and a mod...  
WO/2018/190734A2
The invention relates to a device that pumps fluid using electromagnetic fields together with smart fluids for a wide range of applications. The device consists of a cylindrical chamber having inlet and outlet check valves, a pair of fie...  
WO/2018/179643A1
The purpose of the present invention is to provide a rotary vane member for a pump and a drainage pump with a high lift capability for liquids such as water. In order to achieve this purpose, the rotary vane member for a pump is provided...  
WO/2018/179612A1
The purpose of the present invention is to provide a drainage pump capable of reducing the amount of water outflow into a chamber positioned above a pump chamber. In order to achieve this purpose, the drainage pump is equipped with: rota...  
WO/2018/173769A1
The present invention relates to a multi-stage pump capable of being used as a water supply pump for pressurizing high-temperature high-pressure water and transferring the pressurized water to a boiler. The multi-stage pump comprises: a ...  
WO/2018/167043A1
The invention relates to a centrifugal pump assembly having an electric drive motor (4, 6), an impeller (14) which is driven by the latter, and a pump housing (12) which surrounds the impeller and has at least two connectors (27, 32, 34)...  
WO/2018/166971A1
The invention relates to a pump assembly having at least one rotationally driven impeller (14) and at least one valve element (18), which is rotatable about an axis of rotation (X) between at least two switching positions, wherein the va...  
WO/2018/167047A1
The invention relates to a centrifugal pump unit, comprising a drive motor, at least one impeller wheel (14) rotationally driven by said drive motor, and at least one valve device (32), which has a valve element (32) that can be moved by...  
WO/2018/166975A1
The invention relates to a pump assembly having an electric drive motor (4, 6), at least one impeller which is driven by the drive motor (4, 6), and at least one valve device (18) which lies in a flow path through the pump assembly and c...  
WO/2018/167031A1
The invention relates to a hydraulic structural unit having: a centrifugal pump aggregate which has an electric drive motor (4, 6) and at least one impeller wheel (14) driven by the drive motor; and at least one valve element (18) which ...  
WO/2018/166979A1
The invention relates to a centrifugal pump unit, comprising an electrical drive motor, at least one impeller wheel (14) driven thereby, and a pump housing (12), which surrounds the impeller wheel (14) and in which at least one valve ele...  
WO/2018/166967A1
The invention relates to a centrifugal pump aggregate having an electric drive motor (4, 6), an impeller (14) driven by said motor and at least one valve element (18), which can be moved by the electric drive motor (4, 6) directly or ind...  

Matches 1 - 50 out of 2,541