Abstract: An energy storage and delivery system includes one or more cableways and a cage that travels along each of the one or more cableways. The cage is coupled (e.g., fixedly coupled) to one or more cables that extend between a lower elevation and a higher elevation, the cables or steel ribbons being translated along the associated cableway by a traction motor wheel to translate the cage along the associated cableway. The system is operable to pick-up, transport and deliver with the cage a plurality of blocks from the lower elevation to the higher elevation to store energy (e.g., via the potential energy of the block). The system is also operable to pick-up, transport and deliver with the cage a plurality of blocks from the higher elevation to the lower elevation at least partially under force of gravity to generate electricity via an electric generator coupled to the traction motor wheel.

Abstract: Osmotic energy transfer systems utilize cyclic electro-chemical stimuli to induce an osmotic gradient and corresponding fluid flows across a semi-permeable membrane. The fluid transfers and osmotic flows are converted into mechanical displacements. By cycling or pulsing the electro-chemical stimuli, fluid transfers across the semi-permeable membrane repeatedly alternatingly change direction over time and correspondingly realizing a cycle of reciprocating mechanical displacements.

Abstract: Systems and methods for developing a composite material are disclosed. The system can include a plurality of particles and a plurality of polymers. The plurality of particles can generate mechanical force in response to changing relative humidity, and the plurality of filaments can transfer the mechanical force throughout the composite material, such that the mechanical force changes a shape of the composite material reversibly and repeatedly.

Abstract: A pulsation dampener includes: a centerbody assembly having: a chamber including a first opening bounded by a wall defining a first surface; an outlet port communicating with the chamber; an inlet port communicating with the chamber; a flexible first diaphragm, wherein a perimeter of the first diaphragm is bonded to the first surface forming a seal that blocks the passage of fluid; a first cap disposed adjacent the first diaphragm, defining a first cavity between the first cap and the first diaphragm; an inlet orifice formed in the first cap communicating with the first cavity; an exhaust orifice formed in the first cap communicating with the first cavity; and a valve seat disposed in the first cavity in fluid communication with the exhaust orifice. The first diaphragm is moveable between an open position spaced away from the valve seat, and a closed position sealed against the valve seat.

Abstract: A portable reciprocating pump assembly delivers lubricant from a reservoir and includes a housing mountable on the reservoir and a pumping tube assembly for directing lubricant from the reservoir and into the housing. The tube assembly has a reciprocating plunger and a shovel assembly attached to the lower end of the plunger and having a disk member and a valve. A drive mechanism for operating the pumping tube assembly is disposed within the housing and includes a drive shaft and a cam mounted eccentrically on the shaft and disposed within an opening of a follower. The follower is coupled with the plunger such that rotation of the drive shaft reciprocates the plunger along a vertical axis. A motor is connected with the drive shaft and actuates the drive mechanism and a battery provides power to the motor such that the pump assembly operates without connection to a separate power source.

Abstract: To reduce the peak torque required by an electric motor-driven high-pressure piston-type fuel pump, a drive assembly between the motor and pump includes an energy accumulator configured to accumulate energy during a low force portion of the pump cycle and return that energy to the pumping plunger during a high force portion of the pump cycle. This arrangement reduces the peak torque required from the motor and allows a smaller, less expensive and less energy intensive electric motor to drive the pump.

Abstract: A power system has a piston pump that is driven by high pressure gas from a high pressure gas source that alternatingly pressurizes a first gas chamber and a second gas chamber to drive a first piston and a second piston such that the piston pump pressurizes hydraulic fluid from a hydraulic reservoir into a hydraulic accumulator. The expanded high pressure gas from the piston pump is expelled to a low pressure gas outlet and the pressurized hydraulic fluid is used as a motive fluid to perform work.

Abstract: A membrane system comprising a membrane and connecting elements for connecting the membrane to a membrane pump for conveying a fluid, which membrane pump has a drive shaft designed for an oscillating translatory movement perpendicular to the plane of the membrane during operation of the membrane pump and has an external thread at an end portion for engagement with the membrane system by screwing. To ensure a secure and torque-proof connection between the membrane and the connecting element to be screwed to a drive shaft, the connecting elements comprise a threaded socket, a thrust ring and a thrust plate.

Abstract: An embodiment system and method for dispensing multiple dairy products includes a dispenser which houses two or more dairy product bases with different formulations, which may be combined with or without water to create a multitude of homogenous dairy beverages. The two or more dairy product bases may be mixed together first and then separately mixed with water, mixed together simultaneously with water, or mixed together without adding water. They may be mixed together with or without additional flavoring, ingredients, mineral or nutritional additives. The dispenser comprises a pump with a quick-release mechanism to allow for quick and clean maintenance of the system.

Abstract: A hydraulic pump performance deterioration detection system according to one embodiment includes: a variable displacement hydraulic pump; a switching valve that is connected to the hydraulic pump by a pump line and to a hydraulic actuator by a supply/discharge line; and a regulator that changes a displacement of the hydraulic pump in accordance with a command current and that limits the displacement of the hydraulic pump to a limiting value when a delivery pressure of the hydraulic pump has become higher than a setting value. The performance deterioration detection system further includes: control circuitry that feeds the command current to the regulator; and a pressure sensor that measures the delivery pressure of the hydraulic pump. When the hydraulic actuator is not moving, the control circuitry determines whether or not performance of the hydraulic pump has deteriorated based on a current value of the command current and the delivery pressure of the hydraulic pump measured by the pressure sensor.

Abstract: A technique for monitoring valve and pump efficiencies for positive displacement pumps. The techniques include utilizing a data acquisition system to attain intake and discharge pressure data in combination with real-time encoder position data. Thus, when combined, output from a pump may be monitored in real-time. As a result, pump life may be extended beyond an anticipated changeout schedule. By the same token, premature pump inefficiencies may also be detected for taking a pump offline in advance of expected life. In either circumstance, multi-pump operations may be substantially enhanced with cost and time savings realized.

Abstract: A valve component utilized in a fluid end assembly of a reciprocating pump may contain a multi-piece construction. The valve component may include a valve body portion, a leg assembly portion, a sealing element, and an insert at least partially captured between the valve body portion and the leg assembly portion. The insert may be constructed from a carbide or a ceramic material, and, when the valve component is fully assembled, may be compressed between the valve body portion and the leg assembly portion. The insert may at least partially form the strike surface of the valve component. The valve body portion and the leg assembly portion may both be constructed from a metallic material, and the valve body portion may define a sealing seat. The sealing element may be constructed from an elastomeric material that may be pre-formed and then compression molded onto the seat of the valve body.

Abstract: A fluid end assembly of a hydraulic fluid pump includes a housing, a plug member, a lock cover, and at least one retention pin. The housing may include at least one bore. The plug member may be positioned at least partially within the at least one bore. The lock cover may be coupled to the housing and configured to retain the plug member within the at least one bore during operation of the fluid end assembly. The at least one retention pin may extend at least partially through a portion of the lock cover to retain the lock cover in a rotational position that retains the plug member at least partially within the bore.

Abstract: A seal structure configured to be located between a space forming member forming a columnar inner space and a columnar reciprocating member move in the inner space. The seal structure includes an annular seal member that is configured to be located in the inner space, an annular pressing portion which is located adjacent to the seal member and is configured to press the seal member in an axial direction, a compressive coil spring which is located adjacent to the pressing portion, and a cylindrical collar portion. The cylindrical collar portion is at least partially surrounded by the compressive coil spring to avoid interference between the compressive coil spring and the reciprocating member.

Abstract: A reciprocating piston pump includes a pump module, a drive, and an auxiliary piston. The pump module includes a cylinder head, a cylinder and a piston that form a conveying chamber. The piston converts a drive movement of the drive into conveying and suctioning stroke movements. The auxiliary piston is between the drive and the piston. The cylinder, the piston and the auxiliary piston convert the drive movement into auxiliary conveying and suctioning stroke movements, and convert the auxiliary conveying stroke movement into the conveying stroke movement of the piston via a lubricating medium in a lubricating chamber formed by the cylinder, the piston and the auxiliary piston head. A head surface of the auxiliary piston is smaller than a head surface of the piston, so that, during the auxiliary conveying stroke movement, a pressure in the lubricating chamber is greater than a pressure in the conveying chamber.

Abstract: The present disclosure relates to diaphragm pumps with one or more filters, e.g., tangential flow filters, membranes, and ultrafiltration membranes, for various applications, including, e.g., bioprocessing and pharmaceutical applications, systems employing such filters, and methods of filtration using the same. In an aspect, a pump for alternating tangential flow filtration may include a diaphragm. A housing may contain the diaphragm. The housing may have a first end open to a retentate channel of a first membrane. A magnetic member may be coupled to the diaphragm. An electromagnetic field generator may be disposed about the magnetic member.

Abstract: The present disclosure relates to a hydraulic power pack arrangement that can be configured in multiple different mounting configurations. The hydraulic power pack arrangement can include a bracket assembly for mounting a hydraulic power pack core assembly and a hydraulic reservoir assembly at a mounting location such as a floor, wall, or ceiling of an aircraft.

Abstract: A sliding-vane pump includes a housing in which a cylindrical fluid chamber is formed, and a conveyor rotor which is rotatable in the fluid chamber and is guided on a circumferential wall of the fluid chamber. In the fluid chamber, the conveyor rotor delimits at least one conveyor chamber having a volume which is variable by rotation of the conveyor rotor, and a drive motor having a rotor which is attached rotationally fixedly on a drive shaft. The conveyor rotor is arranged positionally fixedly on the drive shaft and the drive shaft is radially mounted in the housing by means of the conveyor rotor.

Abstract: A method of handling a gear pump, the gear pump including a driving gear wheel having a plurality of driving teeth and a driven gear wheel having a plurality of driven teeth meshing with the driving teeth, the method including controlling the gear pump in a testing mode including commanding driving of the gear pump to pump liquid towards a downstream device and commanding an increase of rotational speed of the gear pump; monitoring rotation values indicative of the rotational speeds during the testing mode; monitoring pressure values by means of at least a downstream pressure sensor during the testing mode, the downstream pressure sensor being arranged to measure a downstream pressure of the liquid between the gear pump and the downstream device; and determining at least one operational condition of the gear pump based on the pressure values and the rotation values.

Abstract: In a screw compressor, on a bearing side relative to a discharge port of a compression chamber in a casing, an intermediate-pressure chamber to which an intermediate-pressure coolant is supplied from outside of the casing is provided in a high-pressure space surrounded by an outer cylinder and an intermediate cylinder of the casing and communicating with the discharge port, and the intermediate-pressure coolant has a temperature and a pressure that are lower than those of a coolant in the high-pressure space and higher than a coolant in a low-pressure space on a motor side relative to the discharge port in the casing. The intermediate-pressure chamber and the low-pressure space communicate with each other.

Abstract: A multi-stage screw compressor includes a plurality of stages of compressor bodies that compress a gas in sequence, and each stage of the plurality of stages of compressor bodies has both male and female rotors that are housed revolvably in a casing in a mutually meshing state. The male and female rotors each include a rotor lobe section having a suction-side end face and a discharge-side end face on one end and the other end thereof in the axial direction and having a twisted lobe extending from the suction-side end face to the discharge-side end face. The male and female rotors in a downstream-stage compressor body as at least one certain stage, excluding an upstream-stage compressor body as the first stage, among the plurality of stages of compressor bodies are each configured such that their lead increases from the suction side in the axial direction of the rotor lobe section toward the discharge side.

Abstract: An axially flexible compressor includes a stationary scroll, a movable scroll and a gas-discharge cover. The stationary scroll mates with the movable scroll. The stationary scroll includes a first spiral wall. The stationary scroll mates with the gas-discharge cover. The stationary scroll is located at least partially in the gas-discharge cover. The compressor includes a sealing member and an elastic member. The sealing member is located between a circumferential side wall of the stationary scroll and an inner wall of the gas-discharge cover. The stationary scroll defines a gas-discharge hole. An outer wall is located at a position away from the first spiral wall and away from the gas-discharge hole. The elastic member is located between the gas-discharge cover and a side of the stationary scroll away from the movable scroll. The elastic member is in contact with the stationary scroll and the gas-discharge cover.

Abstract: A fluid machine includes a plurality of fluid dynamic plain bearings supporting a rotating member. The fluid dynamic plain bearings each include: a top foil; a bump foil; and a bearing housing. The top foil has a bearing surface that has one end portion and the other end portion in a circumferential direction of the bearing surface. The top foil has a fixed end and a free end respectively formed at the one end portion and the other end portion. A movement of the free end in an axial direction of the rotating member is regulated by a regulating member. A clearance through which a fluid flows is formed between the fixed end and the free end. The free end has a discharge passage through which a foreign substance contained in the fluid is discharged from the clearance. The discharge passage is formed through the free end.

Abstract: An axial pump for delivering liquid coolant to cool an electronic device comprises a conduit defining a liquid flow path for the liquid coolant, an impeller in the conduit, a motor stator configured to drive rotation of the impeller about an axis of rotation parallel to the liquid flow path, and a printed circuit board assembly (PCA). The PCA comprises a first printed circuit board (PCB) portion and a second PCB portion electrically connected together by a connecting portion, with the PCA straddling the conduit such that the first PCB portion is on one lateral side of the conduit and the second PCB portion is on an opposite lateral side of the conduit and the connecting portion extending across the conduit.

Abstract: A vertically suspended centrifugal pump including a speed reducing system disposed between a first shaft and a second shaft to allow a speed differential between the first shaft and the second shaft.

Abstract: A water pump assembly comprises an electric water pump, a suction-intake arm assembly, a discharge arm assembly, and a chassis configured to dampen vibrations generated by the electric water pump during operation. The electric water pump includes a pump motor, an inlet port, and an outlet port. The suction-intake arm assembly is connected to the inlet port and the discharge arm assembly is connected to the outlet port. The chassis includes a baseboard and a yoke. The baseboard includes one or more vibration isolators on an underside thereof. The yoke includes a first opening configured to fit about a portion of the electric water pump, a second opening configured to support one end of the suction-intake arm assembly, and a third opening configured to support one end of the discharge arm assembly.

Abstract: Provided is an electric water pump which may have a reduced overall size by simplifying a power transfer structure between a power unit and a rotation unit, and effectively cool a stator and a rotor without any additional structure for their cooling by distributing a fluid between the power unit and the rotation unit.

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 method, analysis device and software for analysing the state of at least one component of a pump assembly notably to determine the rotational speed of the pump assembly or with regard to an error through analysis of the airborne sound emitted by the pump assembly includes the recording of at least a first audio signal during operation of the pump assembly at a first geometric location (Pfar) and at a first distance (Dfar) from the pump assembly and the recording of a second audio signal during operation of the pump assembly at a second geometric location (Pnear) and at a second distance (Dnear) from the pump assembly which is less than the first distance (Dfar).

Abstract: A sump pump system may detect and utilize motion or acceleration of water in sump basins when implementing control of sump pumps. To detect the motion or acceleration, the sump pump system may utilize a sensor that is configured to detect motion or acceleration, such as an accelerometer or gyroscope. The sump pump system may identify a water level in a sump basin based on the detected motion or acceleration, which may be compared to a reading or expected signal from the sump pump system's “typical” sensor (e.g., float switch) that is used to detect one or more water levels. In this manner, the sump pump system may detect a malfunctioning level sensor that is used by the pump to detect high-water and low-water marks at which the sump pump activates and deactivates, respectively.

Abstract: A vacuum pump is provided with which, even in the event of breakage of a rotor blade, broken pieces of the rotor blade are unlikely to scatter from an outlet port. A vacuum pump includes a rotor blade configured to rotate about a vertical axis and a casing housing the rotor blade, and is configured to exhaust sucked gas in a radial direction of the rotor blade by rotation of the rotor blade. An outlet port for the gas is provided at a position that is offset from a position of a gas exit portion of the rotor blade in a direction of the vertical axis.

Abstract: A vacuum pump capable of improving cleaning performance is provided. A heater, purge gas introduction ports, a purge gas valve, and an exhaust valve are provided. As an operation mode, a cleaning operation mode capable of sublimating deposits in a turbomolecular pump is provided. In the cleaning operation mode, at least one of the heater, the purge gas valve, and the exhaust valve is controlled, and a pressure in at least a part of an interior of the turbomolecular pump is increased to a pressure region with which a temperature is greater than or equal to a sublimation temperature of the deposits in the turbomolecular pump and that causes an intermediate flow or a viscous flow.

Abstract: A gas seal column apparatus includes a vertically-oriented column, a pump, an inlet pipe, a an outlet pipe, and a drive shaft driven by any type of motor. The pump and the gas seal column comprise a vertically-oriented pump system. The inlet pipe receives pressurized seal gas for introducing the seal gas into the pump system. The outlet pipe enables the seal gas to exit the pump system. The drive shaft is encased by the gas seal column between the pump drive motor and the pump to couple the pump drive motor to the pump.

Abstract: A fan frame includes a central base, a frame wall, and a plurality of static blades radially extending from the central base to the frame wall, each static blade is connected to the central base at a first end and connected to the frame wall at a second end, the central base is provided with a first wire groove, the frame wall is provided with a second wire groove, the first wire groove and the second wire groove are configured for accommodating wires, and the second wire groove has a shape same as the second end of the static blade connected to the frame wall for gathering the wires to shape similar to the static blade. A fan assembly including the fan frame is also disclosed.

Abstract: The present disclosure relates to 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 manually by a user by operating a directional control valve to inflate, deflate, or close the inflatable product. The directional control valve may also activate a pump in the inflation and deflation states and deactivate the pump in the closed state.

Abstract: A turbomachine including a rotary body including a motor shaft supplying mechanical power, and at least one magnetic drive pump including at least: one stator delimiting an annular inner space and including a first and a second flange, a rotor arranged in the inner space between the first and second flanges and capable of driving fluid, the rotor being able to rotate about an axis of rotation, a pair of magnets having opposite polarities coaxially arranged on the rotor with the axis of rotation, a magnet arranged on the first flange in order to co-operate with one of the magnets of the pair of magnets of the rotor, a magnetic rotator for rotating the rotor arranged on the second flange, the second flange being non-magnetic.

Abstract: A seal section for use in a downhole submersible pumping system includes a bag support tube, first and second bag support plates connected at opposite ends of the bag support tube, and a seal bag extending between the first and second bag support plates. The seal section further includes one or more seal bag shields inside the seal bag. The seal bag shields are configured to prevent the seal bag from becoming damaged through contact between the seal bag and the bag support tube or the first and second bag support plates.

Abstract: The invention relates to a fluid pump, in particular to a liquid pump having a rotor with at last one rotor blade for conveying the fluid, the rotor being variable with respect to its diameter between a first, compressed state and a second expanded state. In order to produce a simple compressibility and expandability of the rotor of the pump, it is provided according to the invention that at least one rotor blade is deformable between a first state which it assumes in the compressed state of the rotor and a second state which it assumes in the expanded state of the rotor by means of a fluid counterpressure during a rotation of the rotor during pump operation.

Abstract: An apparatus for a centrifugal pump includes an impeller. The impeller has a rear shroud on which blades are arranged. The impeller has a hybrid component structure. The hybrid structure includes at least one generative component and at least one conventional component. At least one of the generative component and the conventional component is subdivided into at least two segments.

Abstract: A fish-friendly centrifugal pump having an impeller. The impeller includes a base that is concentric relative to a rotational axis of the impeller and an impeller body formed as at least one oblique cone having an eccentric apex and a smooth outer surface. The at least one oblique cone extends from the base.

Abstract: A ceiling fan and a structure thereof are provided. The structure includes a blade holder, a plurality of blades, and a plurality of positioning elements. The blade holder includes a holder body and a plurality of support platforms. The holder body has a plurality of first matching structures spaced apart from each other. Each of the support platforms includes a first positioning structure. Each of the blades has a second matching structure and a second positioning structure. The second matching structures can be guided by the first matching structures, so that each of the blades is disposed at an installation position on one of the support platforms along an oblique track. When each of the blades is located at the installation position, the first positioning structures and the second positioning structures abut against each other.

Abstract: The present invention relates to a blade comprising: a structure of aerodynamic profile comprising two mutually opposite skins; and a spar comprising a fibrous reinforcement obtained by three-dimensional weaving and densified by the matrix, the spar comprising a blade root portion extending outside the structure of aerodynamic profile and an airfoil portion arranged inside the structure of aerodynamic profile between the two skins. Moreover, within the blade root portion, the fibrous reinforcement of the spar comprises a non-debound region and at least two debound regions extending radially from the non-debound region so as to form at least four separate branches.

Abstract: A centrifugal pump includes at least one impeller. The at least one impeller is surrounded by a casing. The casing includes at least one guide device. The at least one guide device is constructed as a hybrid component. The hybrid component includes at least one conventionally manufactured constituent and at least one generatively manufactured constituent.

Abstract: A submersible pump assembly. The submersible pump assembly comprises a motor comprising a first drive shaft; a seal section comprising a second drive shaft that is coupled to the first drive shaft of the motor; and a centrifugal pump assembly comprising a third drive shaft that is coupled to the second drive shaft of the seal section and a plurality of pump stages, wherein each pump stage comprises an impeller coupled to the third drive shaft and a diffuser retained by a housing of the centrifugal pump assembly, wherein the diffuser of each pump stage comprises a first plurality of vanes each having a first axial length and a second plurality of vanes each disposed between a pair of vanes of the first plurality of vanes and each having a second axial length, wherein the second axial length is less than the first axial length.

Abstract: The present invention relates to a fan shroud provided in a cooling module, and an object of the present invention is to provide a fan shroud assembly in which a baffle is selectively provided in some sections between a plurality of fixing members provided in a ventilation port of a fan shroud, thereby reducing deterioration in rigidity and durability of the fan shroud and effectively reducing BPF noise.

Abstract: A fan for a heat exchanger of a vehicle includes a ventilator and a protection grid upstream of the ventilator. The protection grid may include a plurality of radial and/or concentric ribs, wherein at least one rib, in particular a radial one, may have an oval cross-section. A longitudinal axis of the oval may have an angle with respect to the flow direction.

Abstract: A heat dissipation system of an electronic device including a body, a plurality of heat sources disposed in the body, and at least one centrifugal heat dissipation fan disposed in the body is provided. The centrifugal heat dissipation fan includes a housing and an impeller disposed in the housing on an axis. The housing has at least one inlet on the axis and has a plurality of outlets in different radial directions, and the plurality of outlets respectively correspond to the plurality of heat sources.

Abstract: A quick connect mounting assembly for a ceiling fan. The quick connect mounting assembly includes two releasably attachable mounts that are easily interconnected to mechanically couple elements of a ceiling fan. The quick connect mounting assembly can be used to mount at least two elements of the ceiling fan, including a ceiling fan switch housing to a ceiling fan motor assembly.

Abstract: Assembly comprising several fluid control units (2) for a motor vehicle, each comprising a body (4) and rotational axes (A) 5 parallel to each other, and comprising a support member for said control units (2) which comprises a plate (20) forming a single part arranged in a plane perpendicular to the axes (A), and having holes passing through said plate (20), each hole receiving a body of a control unit (4).

Abstract: A motor mount spacer/adapter arrangement includes a wire cage and at least one spacer. The wire cage includes one or more clamps having substantially equal inner dimensions. The at least one spacer/adapter is disposed adjacent the inner dimension of one of the clamps. As such, the one or more clamps is configured to secure an electric motor in the wire cage. In some versions, the electric motor can have a lower body portion of a first dimension and an upper body portion of a second dimension that is different than the first dimension. The at least one spacer/adapter is therefore configured to reside between one of the clamps and one of the upper and lower body portions of the electric motor.