Abstract:
A rotational component includes a monolithic compressor component for rotation about a rotor axis defining proximal and distal directions, the monolithic compressor component including a compressor shaft defining a rotor core and a compressor wheel disposed distally from the rotor core.
Abstract:
The present disclosure relates to the technical field of low-temperature pumps, in particular to a permanent magnet leakage-free low-temperature pump. The permanent magnet leakage-free low-temperature pump comprises a pump body, wherein a pump impeller is arranged in the pump body, the pump impeller and a permanent magnet motor are of a coaxial structure, no coupler device is arranged between the pump impeller and the permanent magnet motor, a motor barrel is arranged in the pump body and connected with an external power source through a wiring device to work, a first flange plate is arranged at the position, located at the front end, of the outer wall of the pump body, and a second flange plate is arranged at the position, located at the rear end, of the outer wall of the pump body.
Abstract:
An electric submersible pump (ESP) assembly. The ESP assembly comprises a centrifugal pump, an electric motor mechanically coupled by a drive shaft to the centrifugal pump, wherein the electric motor comprises a stator and a rotor, a bearing, wherein the bearing is disposed inside the electric motor, and a magnetic shield disposed in the electric motor between bearing and the rotor and stator.
Abstract:
A water pump includes: an upper housing formed with an inlet and an outlet of fluid; a lower housing installed to fit in a lower side of the upper housing, having a receiving space formed therein; a shaft fixing support having a lower part of a protrudedly formed shaft inserted in the center of a bottom part of the lower housing; an impeller installed around the shaft; a rotor configured by having a magnet installed around a rotor core; a stator installed inside the lower housing; a lower cover; a shaft upper part fixing support member installed in an upper side of the shaft erectedly inserted in the shaft fixing support; and a synthetic resin mold member formed with a first synthetic resin mold around an outer side of the shaft fixing support and around the shaft, and a second synthetic resin mold around an outer side of the rotor.
Abstract:
A rotary shaft and method for reducing non-uniform heating thereof are provided. The rotary shaft may include a tubular body having a longitudinal axis extending therethrough. An outer surface of the tubular body may define a groove at least partially extending radially inward from the outer radial surface toward the longitudinal axis of the tubular body to define a depth thereof. The rotary shaft may include a thermal barrier at least partially disposed in the groove and configured to absorb at least a portion of heat generated from rotation thereof.
Abstract:
A motor structure resistant to liquid intrusion features two modules, the first having an electronically commutated external-rotor motor (20), which motor comprises an internal stator (22) that is arranged on a bearing tube (30) and is separated by a first air gap (24) from an external rotor (26; 92), which latter comprises a rotor cup (40) that is open at one end and is joined at its other end to a shaft (46) that is journalled in the bearing tube (30), further having a permanent-magnet arrangement (76), arranged at the open end of the rotor cup (40), for magnetic interaction with a second permanent-magnet rotor (92), forming part of the second module. The first module is separated from that second rotor (92) by a second air gap and forms therewith a magnetic coupling (94), so that a rotation of the permanent-magnet arrangement (76) brings about a rotation of that second rotor (92). A hermetic separation of the two modules is accomplished using a non-ferromagnetic separating element (82) arranged in the second air gap. The second module can safely be used to handle liquid, e.g. as a pump.
Abstract:
An aeration pump system includes a tee fitting, an inlet pipe, an outlet pipe, and a pump assembly. The tee fitting includes a main body and a 90-degree curve channel traversing through the main body. The pump assembly includes a motor, a shaft, at least one peller, and a first-shaft stabilizer. The inlet and outlet pipes perpendicularly connect to the main body and are in fluid communication with each other through the 90-degree curve channel. The motor adjacently mounts to the main body and is diametrically opposed to the inlet pipe. The shaft operatively couples to the motor, which transfers rotational energy to the shaft. The first-shaft stabilizer terminally connects to the inlet pipe, opposite the main body. The at least one peller connects around the shaft and is positioned within the inlet pipe.
Abstract:
A supercharger transmission case that includes both small and large impeller shaft bearing bores in a single component to avoid potential misalignment, and to allow the bores to be machined during the same machining setup by the same tool. The supercharger transmission case may be fabricated of low thermal expansion material, such as a hypereutectic metal matrix comprising aluminum and silicon, to further reduce thermal expansion of the transmission case and bearings.
Abstract:
A compressor system includes; a compression section that sucks and compresses gas; a rotor that includes the compression section; a gas bearing that supports the rotor; a dynamic-pressure generating gas supply system that supplies, to a gas supply port for dynamic pressure of the gas bearing, bleed gas from the gas pressurized by the compression section; and an external gas supply system for static pressure that supplies, to a gas supply port for static pressure of the gas bearing, external gas from outside of the compression section. The dynamic-pressure generating gas supply system and the external gas supply system for static pressure respectively include paths that are independent of each other to the gas bearing. The gas supply port for dynamic pressure and the gas supply port for static pressure are independent of each other.