Abstract: A magnetic pump is provided that includes a magnet can and an impeller that are individually formed, that is capable of easily performing assembling/disassembling, that has high workability during manufacturing or maintenance, and that has high strength in a connection part between the magnet can and the impeller, and to provide a rotary body for the magnetic pump.

Abstract: A compressor includes a driving motor, a centrifugation space, a discharge pipe, a rotary shaft, a compression portion, a pump assembly, and an oil pickup. The centrifugation space is defined inside a case by a downstream side of the driving motor and the case, and enables centrifugation of a compressed refrigerant and a lubricant oil. The discharge pipe can discharge the refrigerant from the centrifugation space outside the case. The rotary shaft is coupled to a rotor of the driving motor and defines an oil supply path. The compression portion is provided at an upstream side of the driving motor and can compress the refrigerant as the rotary shaft rotates. The pump assembly is provided below the rotary shaft and can pump oil as rotated with the rotary shaft. The oil pickup defines an oil supply path between the pump assembly and a low oil space formed inside the case.

Abstract: An electric coolant pump (1) conveys cooling fluid in order to cool a combustion engine of a vehicle. The electric coolant pump (1) has a pump impeller (2) for accelerating the coolant to be conveyed, a rotor shaft (3) on which the pump impeller (2) is fixed, an electric motor (6), having a stator (8) and a rotor (7), for driving the rotor shaft (3). A control circuit (13) controls the electric motor (6). A pump housing (10) accommodates at least the control circuit (13) and the electric motor (6). The coolant to be conveyed is able to flow through the pump housing (10). The coolant to be conveyed thereby flows around the stator (8), the rotor (6) and the control circuit (13).

Abstract: A method can include operating a pump system; determining a condition associated with the pump system; and controlling the pump system based at least in part on the condition.

Abstract: The present disclosure relates to electronically-controlled air assemblies having an inflation, a deflation, and a closed state for use with inflatable products, such as air mattresses. Specifically, the present disclosure relates to air assemblies where the configuration of the air assembly can be changed by a user operating a directional control valve to inflate, deflate, or close an inflatable product. The air assembly may also maintain a predetermined air pressure value within the inflatable product.

Abstract: A pump arrangement for powering a pump in providing a controlled volume of water to a drip nozzle in a drip-feed humidifier. The pump arrangement includes: a pump having a solenoid; a processing unit; and a power supply electrically connected to the solenoid via a switch which is controlled by the processing unit. The power supply is structured to supply power to the solenoid via the switch. The processing unit is programmed to modulate the power provided to the solenoid via the switch such that the power is supplied to the solenoid according to a mirror image power profile for each actuation of the solenoid for retracting the armature. The mirror image power profile includes: an initial portion which decreases at a third overall rate, an intermediate portion which decreases at a second overall rate different than the third overall rate, and a final portion which increases at a first overall rate.

Abstract: A pump arrangement for powering a pump in providing a controlled volume of water to a drip nozzle in a drip-feed humidifier. The pump arrangement includes: a pump having a solenoid; a processing unit; and a power supply electrically connected to the solenoid via a switch which is controlled by the processing unit. The power supply is structured to supply power to the solenoid via the switch. The processing unit is programmed to modulate the power provided to the solenoid via the switch such that the power is supplied to the solenoid according to a power profile for each actuation of the solenoid. The power profile includes: an initial portion which increases at a first overall rate, an intermediate portion which increases at a second overall rate different than the first overall rate, and a final portion which decreases at a third overall rate.

Abstract: A first main plate has a first principal surface and a second principal surface. A second main plate has a third principal surface, a fourth principal surface, and an aperture. A piezoelectric element is provided on the first main plate and vibrates the first main plate. A first frame is disposed outside an outer peripheral end of the first main plate. First connecting portions connect the first main plate and the first frame to each other. Apertures are formed between the first connecting portions and connect a space adjacent to the first principal surface and a space adjacent to the second principal surface to each other. The second frame is disposed outside an outer peripheral end of the first frame. A second connecting portion connects the first frame and the second frame to each other.

Abstract: Systems and methods for monitoring, detecting, and/or intervening with respect to cavitation and pulsation events during hydraulic fracturing operations may include a supervisory controller. The supervisory controller may be configured to receive pump signals indicative of one or more of pump discharge pressure, pump suction pressure, pump speed, or pump vibration associated with operation of the hydraulic fracturing pump. The supervisory controller also may be configured to receive blender signals indicative of one or more of blender flow rate or blender discharge pressure. Based on one or more of these signals, the supervisory controller may be configured to detect a cavitation event and/or a pulsation event.

Abstract: An electric diaphragm pump having a pump head assembly in a first housing, a motor assembly in a second housing, a fluid sensor, and a leak alert system and/or pump shut-off system. The fluid sensor detects a presence of fluid which has leaked outside of a pump chamber and is located within a cavity of the diaphragm drive chamber. The leak alert system indicates that fluid has been detected by the fluid sensor and the shut-off control system stops operation of the pump based on fluid being detected by the fluid sensor.

Abstract: A blower can be positioned in a wellbore. The blower rotatably drives or is driven by a fluid produced through the well bore. An electric machine can be positioned downhole of the blower, the electric machine configured to rotatably drive or be driven by the blower. A bearing shaft couples the blower and the electric machine. The bearing shaft transfers rotation between the blower and the electric machine. A passive magnetic radial bearing assembly magnetically supports the bearing shaft.

Abstract: A high pressure gas lift compressor system and method of using the system for supplying compressed gas to multiple wells are provided. The system includes a compressor having multiple compressor cylinders. Each cylinder has its own gas inlet line and dedicated gas outlet line that supplies compressed gas from that cylinder directly to a wellbore to provide artificial gas lift. Each cylinder also has its own control valve upstream of the cylinder to control the suction pressure to the cylinder. A desired gas flow rate to each well may be input, and the control valve is adjusted accordingly to achieve the flow rate. By inputting a flow rate for each separate cylinder, the flow rate to each well may be independently controlled.

Abstract: A condensate pump assembly for use in an air conditioning system, the condensate pump assembly comprising: a pump arranged in a housing to pump liquid from a liquid inlet to a liquid outlet; a liquid receptacle configured to receive liquid from the liquid inlet; and suspension means configured to suspend the pump from a bottom surface of the housing. The suspension means are configured to substantially eliminate vibrations being transmitted from the pump to the housing.

Abstract: A sucking jet pump arrangement, with a sucking jet pump comprising a primary fluid inlet for feeding a fuel driving stream to the sucking jet pump, a secondary fluid inlet for feeding the sucking jet pump with the fuel to be delivered, a fluid outlet for outputting the fuel, and a collection container surrounding a first end of the sucking jet pump opposite of the fluid outlet. The container preferably surrounds the primary fluid inlet from at least three sides such that the sucking jet pump sucks fuel via the secondary fluid inlet out of the inner volume of the collection container. The collection container has at least one fuel inlet opening for feeding fuel from the outside to the inner volume of the collection container.

Abstract: A pump includes a cam plate, and an input shaft for rotationally driving the cam plate. A pump housing at least partially surrounds the cam plate and defines a cam plate oil reservoir around at least a portion of the cam plate. A bearing support is at least partially disposed within the cam plate oil reservoir. The bearing support defines a bearing oil reservoir at least partially surrounding a portion of the input shaft. At least one passage extends between the bearing oil reservoir and the cam plate oil reservoir. Dynamic motion imparted on oil within the cam plate oil reservoir facilitates migration of oil from the cam plate oil reservoir through a bearing at least partially supported by the bearing support into the bearing oil reservoir and through the at least one passage into the cam plate oil reservoir.

Abstract: A dual direction vacuum apparatus for creating vacuum and purging obstructions from a vacuum port of the apparatus. The apparatus provides a housing having an air passageway, wherein the air passageway has a first end and a second end. A vacuum pressure inlet is formed in the housing and is adaptable to receive pressurized air from a pressurized air source to create vacuum in the vacuum port and establish a vacuum mode. A purge pressure inlet is formed in the housing and adaptable to receive pressurized air from a pressurized air source to direct pressurized air toward the vacuum port to establish a purge mode and dislodge any obstructions from the vacuum port.

Abstract: End element for the stator of an electric motor of a hermetically sealed refrigerant compressor including at least one isolating element, having a ring-like core, to cover an axial end portion of the stator and to isolate a stator core and stator windings. The end element includes several spring holders extending radially outside the isolating element, each spring holder being adapted to hold a spring for supporting the electric motor in a housing of the hermetically sealed refrigerant compressor. The spring holders are oriented parallel to the axis of the isolating element and an insertion part of each spring holder extends in a first axial direction beyond the neighboring area of the isolating element. The spring holders and the isolating element are integral parts of the end element. The spring holders are tiltable so that an extended part of a spring holder tilts radially inwards.

Abstract: An electric submersible pumping system is constructed with an outer housing which contains an integrated pump and motor. The pump may comprise an impeller disposed within a stator of the motor to form an integrated pump and the motor. An electric submersible pumping system includes a stator having a passage extending longitudinally through the stator. A plurality of stages, including impellers and diffusers, are disposed within the passage.

Abstract: The invention is directed to a peristaltic pump (10), comprising: a flexible membrane (1) forming a at least one bladder (2) against a support, wherein each bladder is provided with one input orifice (4) which admits a fluid to the bladder (2) and one outlet orifice (5) which releases the fluid from the bladder (2); and at least one roller bearing (6) is configured to rotate about an axis (7) and to apply a compressive force against the at least one bladder (2). The peristaltic pump may be in fluid communication with a tapered jet (11).

Abstract: A gas-oil separation plant (GOSP) is configured to process crude oil produced from a well. A production stream from the well operates at a first pressure. A processed crude oil stream from the GOSP flows to a multi-phase ejector. The multi-phase ejector induces flow of a production stream from the well in response to the flow of the processed crude oil stream.