Abstract: Certain example embodiments relate to an air pump for balls, tires, toys, and/or the like and include a retractable base, which facilitates the storage of the needle(s) and/or other adapter(s) inside of the pump itself. This arrangement reduces the chances that it/they will break because it/they is/are protected inside of the pump and need not be repeatedly attached/detached. The pump in certain example embodiments includes a tube body into which the retractable base retracts, a plunger disk, a guide system including one or more guides for guiding the plunger disk and/or base within the tube body, a locking mechanism to help lock the base in extended and/or retracted positions, and a handle. The pump safely stores at least one needle/adapter in the tube body. In the event that a needle breaks, it may be replaced as if it were a conventional pump.

Abstract: The present invention discloses a power head of a vertical reciprocating pump with multi-spherical connection, and a water injection pump using the same, which includes a hydraulic end, a centralizing sleeve, an adjustable ball seat, a circular pull-back plate, pull rods of the power head, and a hydraulic end, an integrated base and the alike. By using the structure with multiple movable spherical surfaces, the error of the oblique disk during its motion along the elliptic trajectory can be eliminated. The power end can be linked with hydraulic ends and can be applied to boosting water injection processes for feeding liquid at low pressure or feeding liquid at high pressure in oil fields and various high-pressure liquid delivery fields. The fast on-site installation of the water injection pump of the present invention can be realized by the integrated base, so as to save the investment and improve the safety factor.

Abstract: There is disclosed a hollow tube body used for a liquid feeding member and deformable by pressurization, wherein: an axial cross-section of the tube body has two opposing long side parts and two opposing short side parts; four corner portions formed by the long side parts and the short side parts each have a shape curved to protrude outward; each of the long side parts has a recessed part recessed inward and continuing from the corner portions; and a portion other than the corner portions of each of the short side parts is in a flat shape.

Abstract: A fan main body member of a turbofan has multiple blades disposed around a fan axial center, a shroud ring which is coupled to each of the multiple blades, and a fan hub portion which is coupled to each of the multiple blades on a side opposite from the shroud ring. An other end side plate of the turbofan is fitted to the radially outer side of the fan hub portion and joined to an other side blade end portions of each of the multiple blades. In addition, an outer diameter of the fan hub portion is smaller than an inner diameter of the shroud ring. In addition, the multiple blades, the shroud ring, and the fan hub portion are integrally formed.

Abstract: An electrical motor vehicle vacuum pump arrangement includes a housing assembly, a pump apparatus arranged therein, a drive motor, and a sound dampener. The housing assembly includes an inlet and an outlet opening arrangement. The pump apparatus includes a pump rotor housing with an inlet- and an outlet-side face wall, and a pump rotor housing part arranged therebetween. The inlet- and the outlet-side face wall and the pump rotor housing part enclose a pump rotor chamber with a pump rotor arranged therein. The drive motor is arranged in the housing assembly. The drive motor includes a motor rotor and a motor stator. The sound damper includes a first and a second sound damping chamber, and a sound dampener element. The first sound damping chamber is connected to the pump rotor chamber and to the second sound damping chamber. The second sound damping chamber is connected to the outlet opening arrangement.

Abstract: A fluid circulating assembly having a rotation axis is provided. The fluid circulating assembly includes a fan impeller including an inlet ring and a rear plate that together define a central fan chamber. The fluid circulating assembly also includes an electrical machine having a rotor assembly, a stator assembly, and at least one bearing assembly. The rotor assembly is coupled to the rear plate such that the electrical machine is located entirely outside the central fan chamber. The rotor assembly includes a hub portion having a radially inner wall that at least partially defines a central opening extending entirely through the electrical machine and oriented about the rotation axis such that the central opening does not include a shaft extending therethrough.

Abstract: A pump that includes a body having a base and a top portion, wherein the base is configured to be anchored to the ground and the top portion is detachably connected to an upper plate in the body. The pump includes a handle assembly including a piston rod, handle bar, and cap that are detachably connected to each other by a fastener. The pump includes a tube positioned in the body. The tube slidably receives the piston rod and is connected to an air line. A hose is connected to the air line and extends from the body. The hose has a head configured to engage the nozzle of a tire. When the piston rod is moved downward within the tube, air is displaced from the tube and through the air line to the hose such that the head dispenses air.

Abstract: A swash plate compressor including a cylinder block accommodating a piston for compressing a refrigerant, a front housing coupled to the front of the cylinder block and having a crank chamber, a rear housing having a suction chamber, a discharge chamber and coupled to the rear of the cylinder block. The swash plate compressor includes a valve assembly including a valve plate inserted into the rear housing, a gasket inserted into the cylinder block, a suction plate inserted between the valve plate, the cylinder block, and a variable orifice module including a first orifice hole through which the refrigerant in the crank chamber passes, a second orifice hole communicating with the suction chamber to discharge the refrigerant passing through the first orifice hole to the suction chamber, and an intermediate passage interconnecting the first and second orifice holes, the first orifice hole having a variable reed, a degree of opening of which is varied depending on the pressure of the refrigerant.

Abstract: A subsea assembly comprising an electric subsea machine having an electric motor driving an operator, and a coolant circuit at least partially located in thermal contact with the electric motor, the coolant circuit including a cooling assembly located externally from the subsea machine, the cooling assembly comprising at least a heat transfer element, the subsea machine and the cooling assembly being supported by a common supporting frame; at least a part of the heat transfer element is integrated in the frame.

Abstract: An aspirator for an evacuation assembly includes a duct defining a flow axis with an upstream portion and a downstream portion, a vane spanning the upstream portion of the duct, and a nozzle. The nozzle has an outlet, is supported by the vane, and is positioned within the upstream portion of the duct. The outlet is laterally offset from the flow axis and is axially overlapped by the vane to limit resistance to a primary gas flow entering the duct through the outlet of the nozzle. Evacuation assemblies are also described.

Abstract: An inflator includes a mouthpiece, an adjustment mechanism, and an air cylinder mechanism that includes a large-diameter cylinder permitted to move relative to the mouthpiece. When the large-diameter cylinder is moved away from the mouthpiece, air from external environment is sucked into a first space of the air cylinder mechanism. The adjustment mechanism is operable to switch between a pressure relief state, where air in the first space is released to the external environment when the large-diameter cylinder is moved toward the mouthpiece, and a sealed state, where the air in the first space is injected into the mouthpiece when the large-diameter cylinder is moved toward the mouthpiece.

Abstract: A fuel supply device includes a surface level detection device that detects a surface level of fuel through use of a float. A supply main body is placed in a fuel tank through an insertion opening and supplies the fuel to an outside. A surface level detection unit, which includes the float, is rotatable relative to the supply main body, and a rotational range of the surface level detection unit is set to include at least an inserting direction of the supply main body. A distal end part of the surface level detection unit, which is furthermost from an imaginary rotational center axis in the surface level detection unit, is placed on an upper side of an imaginary plane, which includes the imaginary rotational center axis and a center of gravity of the surface level detection unit, in a rotational direction of the surface level detection unit.

Abstract: A mobile pump unit including a mobile trailer having mounted thereon one or more pumps, an internal combustion engine(s) to power the one or more pumps, and a heat exchanger assembly for cooling a fluid for the engine, transmission, hydraulic driven components, or pressure pump. The heat exchanger assembly includes a heat exchanger with an air inlet. The air inlet faces the engine and is for receiving air. In addition to the air inlet, the heat exchanger has a fluid inlet for receiving the fluid; a heat exchange surface for transferring heat from the fluid to the air; an air outlet for discharging the air; and a fluid outlet for delivering the fluid to the engine. The heat exchanger assembly also includes an air circulation device for moving the air through the heat exchanger, and an air intake duct that directs the air into the air inlet of the heat exchanger. The air intake duct is configured to resist heated air produced by the engine from entering the air inlet.

Abstract: Nuclear abrasive slurry waste pump systems, devices, and methods for retrieving waste materials and/or other material from storage tanks with liquefied tank material. The systems, devices and methods can work with tanks having high temperature conditions up to approximately 212 degrees Fahrenheit or low temperature conditions down to approximately 32 degrees Fahrenheit.

Abstract: Systems and methods to monitor a condition of a fracturing component section including a section frame and a hydraulic fracturing component of a hydraulic fracturing unit to pump fracturing fluid connected to the section frame may include a condition monitoring controller configured to receive one or more signals from one or more sensors configured to be connected to the fracturing component section and generate signals indicative of operating parameters associated with operation of the fracturing component. The condition monitoring controller may be configured to generate, based at least in part on the signals, condition signals indicative of approaching maintenance due to be performed, predicted component damage, predicted component failure, existing component damage, existing component failure, irregularities of component operation, and/or operation exceeding rated operation.

Abstract: A screw pump comprises a body which has a cylindrical duct formed therein. A screw shaft is located in the cylindrical duct and is arranged to transport liquid between an inlet and an outlet of the screw pump. The screw shaft has a screw thread which defines a helical liquid path within the cylindrical duct. The body of the screw pump includes a groove extending along an inside surface of the cylindrical duct, the groove defining, in part, a ball-passage which extends alongside the screw shaft and intersects with the helical liquid path. The ball-passage contains a plurality of balls which are guided along the ball-passage by the screw thread when the screw shaft rotates relative to the body.

Abstract: Systems and methods for determining proper phase rotation in a linear motor that may be used in an ESP system, where the phase rotations associated with power and return strokes are initially unknown. The method includes providing power to the motor for multiple cycles and monitoring the load (e.g., by monitoring current drawn by the motor) on the motor to determine in which direction (phase rotation) the load on the motor increases. This direction corresponds to the power stroke of the motor. The direction of increasing load is then associated with the power stroke and the motor is operated normally.

Abstract: A disclosure pertains to a reciprocating pump configured for pumping fillers or aggregates or cementitious material and the like.

Abstract: An acoustic cavity tailored synthetic jet employs a body having a cavity with a wall including a taper from a first extent to an aperture. The cavity is configured to produce a matched acoustic resonance. A drive system has a piston engaged to the cavity at the first extent. The drive system and piston are configured for oscillatory motion inducing a synthetic jet at the aperture.

Abstract: A metering mechanism including a metering element that is translatably mounted in a jacket, the jacket being mounted in an adjusting sleeve that can cooperate with the jacket by way of a screwing movement, the screwing/unscrewing movement causing a translatory movement of the metering element; at one end, the metering element is provided with a check valve, and at the other end, same accommodates a plunger, the reciprocating translatory movement of which creates suction at the end of the element provided with the valve, followed by expulsion into a volume surrounding the other end of the metering element via a passage formed in at least one first sealing device and in a second sealing device. A proportioning pump including a metering mechanism of the type as well as to a method for using a pump of the type in at least two metering ranges.