Abstract: A hybrid pump includes an impeller, a magnetic drive configured to control rotation of the impeller, a drive shaft combined with the magnetic drive and a motor. The drive shaft rotates in response to rotation of an axis of the motor, the magnetic drive rotates when the drive shaft rotates, the impeller rotates in response to rotation of the magnetic drive, a drive body of the magnetic drive is formed of plastic, and the drive shaft is formed of metal.

Abstract: A portable electric inflator includes: a core assembly including a motor and an air compressing mechanism, the motor configured to drive the air compressing mechanism to compress and discharge air; a housing defining a receiving space for accommodating the core assembly, and having an external surface that defines a display receiving hole and a number of through holes communicating with the receiving space; a cloth in full contact with and covering the external surface of the housing, the cloth defining an opening, an edge of the opening extending from a junction of the display receiving hole and the external surface of the housing into the housing, forming a side surface covering portion that is in contact with an inner side surface of the display receiving hole; and a display received in the display receiving hole, the display comprising a lateral surface abutting against the side surface covering portion.

Abstract: An electric submersible pump (ESP) assembly comprising an electric motor, a seal section disposed uphole of the electric motor, a gas separator disposed uphole of the seal section, a downhole transmission assembly disposed uphole of the gas separator, comprising a flow passage fluidically coupled to a liquid phase discharge port of the gas separator, a first drive shaft coupled to a drive shaft of the gas separator, a second drive shaft, and a transmission that mechanically couples the first drive shaft to the second drive shaft, wherein the transmission is configured to turn the second drive shaft at a slower angular speed than the angular speed of the first drive shaft, and a centrifugal pump assembly disposed uphole of the downhole transmission assembly, having a fluid inlet coupled to a fluid outlet of the downhole transmission assembly, and having a drive shaft coupled to the second drive shaft.

Abstract: A system and method for moving water up a water column to achieve a sufficient pressure to overcome a reverse osmosis filter. The system includes a rigid outer column for receiving and holding water, with an inner, deformable hose located inside the rigid outer column. The hose has a one-way valve at a distal end of the hose to allow water to enter the hose and an outlet at the proximal end of the hose to allow water to exit the hose. A water-raising device to raise the water within the inner, deformable can include a system that moves sections of water within an inner lumen using a peristaltic motion to drive water upwardly through the inner lumen.

Abstract: A variable speed pumping system coupled to a fluid circuit of an aquatic application is provided. The system includes a motor, a variable speed drive in electrical communication with the motor, and a housing designed to substantially enclose the motor and the variable speed drive. The housing includes a drive cover extending over the variable speed drive and an end cover. A controller is configured to provide control of the variable speed drive. An electrical communication assembly is in communication with the controller and contained underneath the end cover. The electrical communication assembly includes an RS-485 terminal block, and a selectively removable IO expansion module sized and shaped to be received into a receptable of the drive cover. The IO expansion module has a module cover and a module circuit board, and the module circuit board includes a plurality of relay terminal blocks and a plurality of digital input terminals.

Abstract: Provided are a pressure-pump cartridge and a pressure pump, where the pressure-pump cartridge includes a cylinder, where the cylinder has a first chamber, a piston chamber and a second chamber hat are in communication in sequence, and the piston chamber is used for being in sealing fit with a piston. An end of the first chamber remote from the piston chamber is provided with a first opening allowing entry of the piston, and during installation, the piston enters the first chamber by the first opening and enters the piston chamber after passing through the first chamber, and meanwhile, the first chamber is configured to be in a clearance fit with the piston, such that the size of the first chamber is larger than that of the piston.

Abstract: A blower device including: a motor holder having an opening; a motor housed within the motor holder; a blower fan coupled to the motor; an electronic circuit adapted to control the motor. The motor holder includes an air inlet and an air channel configured to supply the electronic circuit and the motor with an airflow from the air inlet. The air channel includes a first deflector wall and a first liquid trap wall arranged in series between the air inlet and the electronic circuit. The first deflector wall and the first liquid trap wall extend in opposite directions and form a meandering path for the airflow.

Abstract: A cooling fan has a fan shroud with a fan wheel recess surrounded by a shroud ring and a fan wheel rotatably mounted in the fan wheel recess for conveying the air flow along a conveying direction from a shroud upper side to a shroud underside. The fan wheel has a central hub cup with radially orientated blades and an outer ring connecting the blades at the blade tip ends. A circumferential ring gap is formed between the outer ring and the shroud ring. A rib structure in the ring gap reduces swirl in a gap flow orientated against the conveying direction. A shroud ring section of the shroud ring extends axially beyond the outer ring on the shroud underside. The shroud ring section is orientated parallel or at an angle of inclination and radially inwards relative to the conveying direction.

Abstract: A rotary pump for a fluid metering system is provided. The rotary pump reciprocates, and is reversed by a signal from a limit switch that is deflected by an actuator arm on a rotating sleeve of the pump system. The sleeve receives a gasket that forms a seal between the sleeve and the housing, the gasket having an opening surrounding a side hole of the sleeve to permit fluid to pass through the side hole between a pump volume and an inlet port or outlet port of the housing.

Abstract: A vacuum pump and a vacuum pump rotor blade that can effectively limit deposition of reaction products are provided. The vacuum pump includes a rotating shaft held rotationally, a drive mechanism for the rotating shaft, a first rotor blade made of a first material, a second rotor blade made of a second material having higher heat resistance than the first material, and disposed further toward a downstream side than the first rotor blade, and a casing enclosing the rotating shaft, the first rotor blade, and the second rotor blade. The second rotor blade is disposed, via a heat insulating portion, on the first rotor blade.

Abstract: A pump shaft for a multi-stage pump, in particular a centrifugal pump, includes a peripheral groove region for the engagement of a relief device in order to introduce a force acting in the axial direction of the pump shaft. The groove region includes a plurality of grooves which are spaced apart in the axial direction.

Abstract: A connecting structure, an exhaust silencer, a silencer and a compressor are provided. The connecting structure has a connecting housing and an exhaust pipe assembly. The connecting housing has a silencing chamber and a sealing portion. One end of the exhaust pipe assembly passes through the sealing portion and extends into the silencing chamber. Another end of the exhaust pipe assembly is arranged outside the connecting housing. Thus, the silencing chamber is in communication with an outside space of the connecting housing through the exhaust pipe assembly.

Abstract: A method is provided for controlling a pump driven by a motor with the motor connected to a drive. The method can include determining a parameter value related to a fault condition, comparing the parameter value to a threshold value, and adjusting a speed control of the drive based on the comparison of the determined parameter to the threshold value.

Abstract: An electrical machine includes an open-loop or closed-loop control unit and a fluidic actuator, wherein the open-loop or closed-loop control unit is established for open-loop or closed-loop control of the actuator, where the open-loop or closed-loop control unit has a carrier plate cast in a thermally conductive casting compound, and where the open-loop or closed-loop control unit makes contact with a fluid-filled chamber of the actuator in the region of the casting compound such that it becomes possible to dispense with separate cooling devices in the open-loop or closed-loop control unit.

Abstract: The invention comprises a pumping apparatus, system and method for increasing the flow of the in a first direction to boost liquid flow and in a reverse second direction to remove blockages and/or self-clearing, with operation having an rotor/impeller that can use a shredder and/or shearing action utilizing blades for processing to pass solids, debris and other things to prevent clogging and/or self-cleaning of the unit.

Abstract: An electrical fan having various supplies of electricity includes: a housing; a motor securely fixed in an interior of the housing to generate rotating power; an impeller located in the interior of the housing and connected to the motor to be driven by the motor to rotate; a circuit board arranged in the interior of the housing and electrically connected with the motor and including a boost circuit; an electricity supply hole arranged on the housing and electrically connected with the circuit board to provide a USB-C power supply that is provided from outside; a dry battery box arranged in the housing and electrically connected with the circuit board to accommodate therein a plurality of dry batteries that provide a 9V dry-battery power supply; and a control switch arranged on the housing to serve as a user control interface.

Abstract: A high-pressure pump includes a valve member that allows or blocks a flow of fuel to a pressure chamber. A needle is reciprocable inside a cylinder member. One end of the needle facing the pressure chamber is provided with the valve member. Another end of the needle is provided with a movable core that faces a fixed core in an axial direction of the needle. The high-pressure pump includes a coil assembly that includes a coil, a terminal connected to the coil, and first and second yokes that form a magnetic circuit on both sides of the coil in the axial direction. The coil assembly is between a first connection portion and a second connection portion. The first connection portion connects the coil assembly and the fixed core. The second connection portion connects the coil assembly and the cylinder member.

Abstract: A pump arrangement for conveying a liquid, in particular for conveying waste water or service water, includes a pump housing and an impeller rotatably arranged in the pump housing about a rotation axis for conveying the liquid. At least one sensor, in particular a 3D sensor, is present for detecting a surface of the impeller to sense an extent of build-up on the impeller. The at least one sensor is arranged on and/or in the pump housing.

Abstract: The present invention concerns a hydraulic pressure amplifier device comprising a casing (10) having two chambers (12, 14) of different cross-sections which house a staged piston (20) comprising two piston sections (22, 24) with cross-sections respectively el matching the chambers (12, 14), and means (30) for controlling the movement of the piston (20), characterised by the fact that the control means (30) are formed of an electronic control driven by means for estimating the ends-of-stroke of the piston (20) without an end-of-stroke sensor or mechanical stop.

Abstract: To provide a drainage pump capable of reducing the amount of drain water remaining in a drain pan. A drainage pump includes a housing, an impeller housed in the housing, and a motor with a drive shaft connected to the impeller. The housing includes a suction pipe in a cylindrical shape extending in an up-and-down direction. A suction port facing downward and a concave surface in an annular shape around the suction port are disposed at a lower end of the suction pipe.