Abstract: A technique facilitates the reduction of vibration in a variety of devices which have rotating components. According to an embodiment, a system may combine a shaft, a rotor mounted along the shaft for rotation with the shaft, and a vibration reduction system. The vibration reduction system incorporates the use of a key and keyway in a manner which helps balance the rotor, thus reducing vibration during operation. In some applications, the vibration reduction system is able to reduce eccentric positioning of the rotor on the shaft due to, for example, assembly clearances.

Abstract: A pumping system, comprising: a pump fluid end comprising a plurality of pump chambers, each pump chamber comprising a bore having a reciprocatable plunger disposed therein, a suction valve, and a discharge valve; a prime mover mechanically coupled to the fluid end [by a drivetrain] and configured to reciprocate the plungers; and a controller communicatively coupled to the prime mover, the fluid end, or both and configured to alert a user re a pump malfunction, initiate corrective action of the pump malfunction, or both in response to: (a) an indication of torque reversal during operation of the pumping system, (b) an indication of negative flow rate from the pump during operation of the pumping system, (c) an indication of leakage of (i) a single discharge valve in a 3-plunger pump or (ii) discharge valves associated with two plungers in adjacent firing order, or (d) any combination of (a)-(c).

Abstract: An electric motor and a compressor having an electric motor. The electric motor may include a stator, and a rotor provided with a rotational shaft, a rotor core coupled to the rotational shaft, and permanent magnets coupled to the rotor core. The rotor core may include a first core to which the permanent magnets may be coupled, and a second core made of a magnetic material and coupled to an end of the first core in an axial direction. The second core may have outer surfaces disposed inside of extension lines extending in the axial direction from inner surfaces of the permanent magnets.

Abstract: Oil lubricated supercritical fluid pumps with oil separators are disclosed herein. An example pump system to pressurize a fluid within a closed loop thermal transport bus disclosed herein includes a pump housing, a duct fluidly coupled to the pump housing, a first portion of the duct to include a mixture of an oil and the supercritical fluid, a second portion of the duct to include the supercritical fluid, and a separator positioned in a third portion of the duct between the first portion of the duct and the second portion of the duct, the separator to separate the oil in the mixture from the supercritical fluid.

Abstract: A vacuum adsorber includes a housing having an accommodating cavity and an opening communicating with the accommodating cavity; an integrated vacuum pump arranged inside the accommodating cavity; a control panel arranged inside the accommodating cavity and controllably connected with the integrated vacuum pump; wherein the control panel is controllably connected with a photoelectric switch; a power-up assembly having a guide piece and a shading movement portion; and an activating piece covering inside the opening of the housing. By means of setting the activating piece to push the shading movement portion to move in the movement cavity, when the shading movement portion moves to block beams, it causes the state of beams to change, and then voltage inside the photoelectric switch changes; when the control panel detects a change in voltage, it controls the pump to start operating; thereby improving the stability and reliability during starting the pump.

Abstract: A fanatic participation device designed to enhance fan engagement at sporting events by transforming vocal enthusiasm into a tangible action—ball inflation. The device comprises a rectangular upright housing equipped with an air-compressor, weight and height sensors, a microphone, and a controller. Fans can inflate balls by screaming into the microphone, with inflation proportional to the decibel level detected. The device captures and displays fan images on a digital viewer and can publish team-related announcements. It also includes a transceiver for connectivity with smart devices, allowing real-time image transmission. Stability is ensured through a mechanical ball holder stabilizer and gusset plates. The balls inflated are ideally intended for use during fan teams' games, enabling direct participation. The device combines real-time feedback, interactivity, and promotional capabilities to create a memorable and immersive fan experience.

Abstract: An ESP system having a driveshaft assembly; an electrical motor coupled with an end of the driveshaft assembly, and that when energized rotates the driveshaft assembly in a first direction. The ESP system also includes a pump coupled with an end of the driveshaft assembly distal from the motor, and a one-way clutch train in the driveshaft assembly that arrests rotation of the driveshaft assembly in a second direction. In this example the driveshaft assembly includes a pump shaft having an end engaged with an end of a motor shaft; opposing ends of the pump and motor shafts respectively couple with the pump and motor. The one-way clutch train includes a shaft-to-shaft clutch coupled between inner and outer surfaces of the pump and motor shafts and a shaft to housing clutch coupled between an outer surface of one of the pump and motor shafts and an outer housing.

Abstract: The present invention provides an in-vehicle inflator, comprising an internal housing provided with a mounting space, the internal housing comprising a battery compartment, and an inflation device provided within the mounting space and attached to an inner wall of the internal housing, the inflation device comprising a motor assembly and a piston chamber, where the motor assembly is connected to the piston chamber in a transmission manner, the piston chamber is eccentrically offset from the motor assembly, and the motor assembly and the piston chamber together define a recess for objects, wherein the battery compartment is provided in the recess for objects, and the battery compartment is attached to the motor assembly. The problem addressed by the present invention is how to make the inflator more portable.

Abstract: An easy-to-assemble floor pump comprises a base, a cylinder unit, and a pressure gauge. The cylinder unit is installed on the base and has a cylinder body, a through hole, a non-return seat, and a piston, the cylinder body has a first flow channel, the pressure gauge is installed at a second end of the cylinder body, the pressure gauge has a head part, a manifold part with a second flow channel formed inside, and an air outlet part disposed on the manifold part and forming a third flow channel inside; reciprocating movement of the piston causes air in the cylinder body to be capable of entering into the second flow channel and the third flow channel respectively through the first flow channel. Structural configuration of the floor pump is capable of reducing parts assembly procedures and easily replacing damaged parts.

Abstract: Actuation of a hydraulic device that provides a hydraulic supply to a torque-transmitting device is provided. An electrically operated pump is operated in a first operating state. The first operating state has a primary pump rotational speed that provides a first fluid pressure to the torque-transmitting device via a fluid tract. A switchover process is initiated to operate the electrically operated pump device in a second operating state based on a second fluid pressure and a second fluid target pressure. The second operating state has a secondary pump rotational speed that provides the second fluid pressure to the torque-transmitting device via the fluid tract. During operation of the hydraulic device, the secondary pump rotational speed for the switchover process is determined based on a first power value. The first power value includes electrical pump power of the pump device in a preceding switchover process.

Abstract: There is described herein a system for determining the interaction between a test atmosphere and a simulated respiratory tract, said system comprising: (a) a first pump comprising: (i) a chamber configured for containing a first volume of gas comprising a test atmosphere; (ii) a first port adapted for receiving and outputting gas and comprising a valve for regulating the flow of gas through the first port, said valve being moveable between open and closed positions, wherein in the open position said valve is openable towards a test atmosphere or surrounding air; (iii) a second port adapted for outputting and receiving gas and comprising a valve for regulating the flow of gas through the second port, said valve being moveable between open and closed positions; (iv) a piston plate in the chamber, said piston plate comprising one or more apertures for the uptake or inflow of gas into the chamber wherein one or more, or each, of the apertures include a valve that is movable between open and closed positions and i

Abstract: An assembly, comprising a basin, a submersible pump, having an outlet, disposed within the basin, and an adapter. The adapter comprises a housing having a first side and a second side, a reducing passage extending axially through the housing from the first side to the second side, wherein the reducing passage has a varying inner diameter such that a first inner diameter transitions to a second inner diameter, a plurality of fastener receiving holes extending transversely through the housing and disposed radially and circumferentially around the reducing passage, and a plurality of fastening elements extending from the housing at the second side. The submersible pump outlet is connected to the adapter on the second side and an existing discharge line connected to the adapter on the first side. The adapter provides a transition from a diameter of the submersible pump outlet to a diameter of the existing discharge line.

Abstract: A multifunctional camping fan telescopic lamp is provided, which includes a base, a rotating base, a fan, and a telescopic lamp. The rotating base is in a “Y” shape and is installed on the base through a rotating mechanism to achieve a horizontal circular rotation of the fan; a cover is provided with a built-in light strip, thereby providing additional lighting or ambient lighting effects. Two sides of the fan are connected to the rotating base through a ratchet module, enabling manual adjustment of up-and-down tilt angle. The telescopic lamp is installed on a back of the fan through a telescopic rod, allowing for free adjustment of the light height and rotation within multiple angle ranges to expand an illumination range. Internally integrated with batteries, PCB boards, and intelligent control systems, it supports functions such as power display and working mode selection, thereby optimizing energy utilization efficiency.

Abstract: A fan assembly comprising a plurality of nested components comprising a first stator; a first rotor that is radially spaced from the first stator, wherein the first rotor is magnetically driven by the first stator, the first rotor includes a second stator whereby the second stator rotates with the first rotor; a second rotor that is radially spaced from the second stator, wherein the second rotor is magnetically driven by the second stator; and, a fan blade drivenly connected to the second rotor.

Abstract: An intelligent controller for a reciprocating air compressor includes a processor, a plurality of sensors, and a plurality of peripheral devices. The plurality of sensors is in communication with the processor. The plurality of sensors is configured to read operating data of the reciprocating air compressor and send that operating data to the processor. The plurality of peripheral devices is in communication with the processor. Each of the plurality of peripheral devices are configured to be controlled by the processor. The plurality of peripheral devices is configured to operatively control the reciprocating air compressor. Wherein, the processor is configured to read data from the plurality of sensors and control the plurality of peripheral devices to intelligently extend life of the reciprocating air compressor and reduce energy consumption of the reciprocating air compressor.

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 hose includes a roller to selectively clamp the hose, and a buoyancy support attached to the roller. The buoyancy support is selectively inflated and deflated to move the clamp (and water inside the deformable hose) within the rigid outer column.

Abstract: A safety helmet fan system includes a fan housing carrying a first fan on a first side of the fan housing and a second fan on a second side of the fan housing and configured to be mounted, by a mount connector located between the first side and the second side, on an exterior of a safety helmet shell above a brim of the safety helmet shell, and an elongate cooling air duct connected to the fan housing to direct cooling air flow from the fan housing around the brim and into an interior of the safety helmet shell.

Abstract: A core of a dual-motor-driven inflatable pump has a base, a cylinder, two electric motors, and a drive wheel set. The base has an assembly portion, a fixing portion, and a receiving space formed between the assembly portion and the fixing portion. The cylinder is disposed on the base and has a cylinder body, a cylinder head, and a piston rod. The cylinder body is disposed on the fixing portion via the cylinder head. The piston rod is disposed in the cylinder body and extends in the receiving space via the fixing portion. The two electric motors are disposed on the assembly portion of the base, and each has a drive shaft extended in the receiving space. The drive wheel set is disposed in the receiving space of the base and has a driven gear and two drive gears engaging with the driven gear.

Abstract: The present invention provides an electric pump including a housing, a gear part disposed in the housing, a stator disposed to correspond to the gear part, and a support member disposed between the gear part and the housing, wherein the gear part includes a first gear, a second gear disposed to correspond to the first gear, and a magnet disposed on the second gear, and the support member includes a first region supporting the first gear and a second region protruding from the first region and inserted into the first gear.

Abstract: A fluid control device includes piezoelectric pumps and a substrate. The substrate includes dielectric base members. Each of the dielectric base members has a recess and a through-hole. Each of the dielectric base members is laminated such that the recesses of the dielectric base members partially overlap and communicate with each other. A portion of the recesses not overlapping with the dielectric base member serve as a first opening and a second opening, respectively, to the outside. The first opening and the second opening open in opposite directions in the lamination direction. The first opening and the second opening have shapes that may be fit to each other. The piezoelectric pump is on the dielectric base member to communicate with the through-hole, and the piezoelectric pump is on the dielectric base member to communicate with the through-hole.