Abstract: A motor lead coupler is configured to provide a metal-to-metal sealed connection between a first motor lead extension and a second motor lead extension. The motor lead coupler includes a first plurality of receivers on a first end of the body, a second plurality of receivers on a second end of the body, and a plurality of intermediate terminals. Each of the first plurality of receivers is configured to receive a corresponding one of the first plurality of leads, and each of the second plurality of receivers is configured to receive a corresponding one of the second plurality of leads. Each of the intermediate terminals is connected between a corresponding pair of the first plurality of receivers and the second plurality of receivers. The motor lead coupler includes pressure test ports that can be used to pressure test the connection between individual leads and the motor lead coupler.

Abstract: A subsea pump system includes a subsea centrifugal pump with a motor compartment and a process compartment. The subsea pump system further includes a liquid phase separator arranged downstream to the pump or downstream to at least one pump impeller. The liquid phase separator includes an inlet receiving the pressure boosted fluid, an outlet delivering a majority, or a minor part, of the pressure boosted fluid, and a liquid phase outlet, a liquid recirculation line, a flow mixer arranged on the inlet side of the pump, and a liquid lubricant line.

Abstract: A method is for calibrating a peristaltic pump, and for dispensing a quantity of liquid by a peristaltic pump. A device for producing sterile preparations can execute the methods.

Abstract: A fluid delivery system includes a reservoir for storing fluid, a rotary pump having a first pump port and a second pump port, a first fluid conduit connecting the first pump port to the reservoir, and a second fluid conduit connecting the second pump port to the reservoir. The rotary pump rotates in a first delivery direction in a normal mode and in a second delivery direction in an alternative mode. A first valve separates the first pump port from the reservoir when the rotary pump is in its alternative mode, and a second valve separates the second pump port from the reservoir when the rotary pump is in its normal mode.

Abstract: Provided is a vacuum pump suitable for preventing the backflow of a particle from the vacuum pump toward a vacuum chamber. The vacuum pump includes a turbomolecular pump portion exhausting gas molecules by a rotor blade and a stator blade, and a thread groove pump portion provided downstream of the turbomolecular pump portion and exhausting the gas molecules by a thread groove flow path formed by a cylindrical rotary component (cylindrical portion) and a cylindrical stator component (thread groove pump portion stator) provided on an outer periphery of the cylindrical rotary component, wherein a bounce back prevention means for preventing a particle from bouncing from the thread groove pump portion back toward the turbomolecular pump portion is provided downstream of the turbomolecular pump portion.

Abstract: Disclosed is a motor and a drain pump including the same. The motor includes a rotor, a rotation shaft positioned through a center of the rotor, and a shaft fixing member for supporting the rotor and the rotation shaft, in which the shaft fixing member and the rotor include a fixing device provided in a direction that intersects a rotation direction of the rotation shaft to prevent the rotation shaft from being idle.

Abstract: A liquid pump, in particular for providing a supply to a transmission of an electric or hybrid drive module of a motor vehicle, having a pump housing wherein a pump chamber and a pump rotor are arranged, wherein the pump chamber is connected to an outlet channel to which a temperature sensor is assigned, wherein the temperature sensor has a lead frame and an SMD sensor element.

Abstract: A device for pumping molten metal includes a pump configured to pump molten metal, wherein the pump comprises (i) a motor, (ii) a shaft having a first end connected to the motor, and a second end connected to a rotor, wherein the rotor is configured to push molten metal upwards as it rotates. At least part of the shaft and the rotor are positioned in a conduit of a riser. The riser has an outer surface, a front, a bottom, a two-stage conduit, an inlet and an outlet above the inlet and below the motor. The two-stage conduit has a lower stage and a an upper stage, wherein the lower stage is generally cylindrical and the upper stage has a circular cross-sectional portion and one or more lobes extending from and in communication with the circular cross-sectional portion.

Abstract: A valve assembly for an electrical refrigerant compressor of a motor vehicle, comprising: a flexurally elastic valve plate for the pressure-regulated opening and closing of an outlet opening of the refrigerant compressor; and a rigid stop plate for limiting the movement of the valve plate, the stop plate and the valve plate being in the form of a preassembled component.

Abstract: An air circulation device includes an impeller and a connecting unit. The impeller includes a plurality of blades that are disposed about a rotating axis and that are separably interconnected. The blades cooperatively define an inlet that is located at a central portion of a bottom end of the impeller, a plurality of outlets that are equiangularly disposed about the rotating axis and about the inlet, and a plurality of guide channels each of which is in fluid communication with the inlet and a respective one of the outlets. The connecting unit fixedly interconnects each adjacent pair of the blades.

Abstract: An asymmetric scroll compressor includes a compressor housing. An orbiting scroll member and a non-orbiting scroll member disposed within the compressor housing. The orbiting scroll member and the non-orbiting scroll member each includes a baseplate and a wrap extending from the baseplate. The orbiting scroll member and the non-orbiting scroll member intermeshed to form a plurality of compression pockets. A driveshaft affixed to the orbiting scroll member and configured to orbit the orbiting scroll member from a first orbital position to a second orbital position. A communication port disposed on the baseplate of one of the orbiting scroll member and the non-orbiting scroll such that: in the first orbital position, the communication port communicates with a first enclosed pocket of the plurality of compression pockets, and in the second orbital position, the communication port communicates with a second enclosed pocket of the plurality of compression pockets.

Abstract: An electric submersible pump (100) includes a casing (11) and a closed impeller (4), and the casing includes a suction flow-path portion (14) that faces the closed impeller, has a suction port protruding in a convex shape and is formed integrally with the casing.

Abstract: A screw compressor for compressing a working medium sucked through a suction opening and discharging the compressed working medium through a delivery opening, wherein the screw compressor includes: a male rotor and a female rotor that rotate while meshing with each other; a casing that houses the male rotor and the female rotor and is provided with a bore which forms a working chamber designed, together with the male rotor and the female rotor, to compress the working medium; a drive unit that rotationally drives at least one of the male rotor and the female rotor; a working chamber closing unit that forms a suction port for sucking the working medium into the working chamber and closes the working chamber when the working chamber reaches a specified capacity; and a suction space that connects the suction opening and the suction port to allow communication therebetween.

Abstract: A device and a method for manufacturing the device for driving a compressor, in particular an electric motor, with a rotor and a stator with a stator core, which are arranged along a longitudinal axis. The stator exhibits connecting cables produced as sections of conducting wires of coils, and connection lines, that are arranged on a first end face of the stator, one insulation element whose wall that is produced essentially with a hollow-cylinder shape projects beyond the stator core on the first end face of the stator in the axial direction, as well as one cover element with mounting elements with connection passages for mounting plug-in connectors, which each are fully enclosed by a wall. A volume enclosed by the stator core, the cover element and the wall of the insulation element which projects beyond the stator core is filled at least zonally with potting compound.

Abstract: A motor control device includes: a target value acquisition part acquiring a target value of a control parameter of a motor; an operation amount calculation part calculating an operation amount; an output acquisition part acquiring an output of the control parameter; and a deviation calculation part calculating a deviation between the target value and the output. The operation amount calculation part includes: a first calculation part calculating a first value corresponding to the deviation; a second calculation part calculating a second value in a range not exceeding a predetermined upper limit value based on an integrated value of the deviation; and a third calculation part calculating the operation amount in a range not exceeding an operation amount upper limit value based on the first and second values. The predetermined upper limit value is larger than a value obtained by subtracting the first value from the operation amount upper limit value.

Abstract: The present disclosure generally relates to methods for additive manufacturing (AM) for fabricating multi-walled structures. A multi-walled structure includes a first wall having a first surface and a second wall having a second surface facing the first surface to define a passage having a width between the first surface and the second surface in a first direction. The multi-walled structure also includes an enlarged powder removal feature connecting the first wall and the second wall. The enlarged powder removal feature has an inner dimension greater than the width in the first direction and at least one open end in a direction transverse to the first width.

Abstract: A rotary engine side housing is provided that includes a side plate portion, a side housing body portion, a coolant chamber, and a plurality of posts. The side plate portion has exterior and interior surfaces. The coolant chamber is disposed internally within the side housing body portion. The coolant chamber is defined by a chamber base surface, the peripheral side walls, and the side plate portion interior surface. The chamber base surface and the side plate portion interior surface are spaced apart from one another and the one or more peripheral side walls extend there between. The plurality of posts extend between the chamber base surface and the side plate portion interior surface. The side plate portion, the side body housing portion, and the plurality of posts are integrally formed with one another.

Abstract: A rotary internal combustion engine includes a rotor housing having a peripheral wall circumscribing a rotor cavity and a rotor disposed within the rotor cavity. A side housing is secured to the rotor housing and a plate defines a seal running surface for the rotor. The plate is disposed between a portion of the side housing and the rotor housing and at least one shim is disposed between the plate and the side housing for spacing the plate apart from contact with the side housing.

Abstract: A pumping system configured to recover wellbore fluids from a wellbore includes an electric motor that has a motor head, a pothead receiving bore within the motor head, a motor insulator block within the motor head, and a stator lead within the motor insulator block. The pumping system further includes a motor lead cable and a pothead connector connected between the motor head and the motor lead cable. The pumping system includes a hermetically fused pothead-to-motor connection at an interface between the pothead connector and the motor head that obviates the need for conventional elastomeric seals at the interface between the pothead connector and the motor head.

Abstract: A liquid pump includes a pump house with an electric motor housed therein, a pump cover connected to the pump house, an impeller housed in the pump cover and driven by the motor, and a sleeve disposed between the pump cover and the pump house. Two of the pump cover, the pump house, and the sleeve are respectively provided with an outer binding segment and an inner binding segment, the outer binding segment is made of polyphenylene sulfide mixed with glass fiber, and permeable to a laser light, the inner binding segment is capable of absorbing the laser light.