Abstract: A brushless direct current magnetic pump includes a drive shaft that passes through and that is coupled to a magnet carrier. The magnet carrier with an annular sleeve with at least six outer ribs that define at least six slots that extend axially along the sleeve. The at least six slots accommodate at least six bar magnets and at least six sensor magnets. A Hall effect sensor is included in the motor assembly to provide positional information of the sensor magnets to a controller for improved speed control.

Abstract: An improved internal gear pump design is provided whereby the head plate includes a groove located vertically above the crescent for providing improved axial feed to the roots or innermost spaces between the idler teeth. The design of the pump also includes a stepped shaft design whereby the radius of the shaft immediately adjacent to the rotor is greater than an adjacent outboard section of the shaft. As a result, a chamber for housing the seal assembly is defined as the space between the stepped shaft portion, the annular seal plate, the outboard section of the shaft that has a lesser or reduced diameter, and the casing. The casing may also include a recess for providing sufficient space for the seal assembly. The larger section of the shaft is accommodated in a bushing mounted to the inside surface of the casing. The inside diameter of the bushing is large enough to accommodate the larger stepped portion of the shaft as well as the outside diameter of the seal assembly.

Abstract: An improved internal gear pump design is provided whereby the head plate includes a groove located vertically above the crescent for providing improved axial feed to the roots or innermost spaces between the idler teeth. The design of the pump also includes a stepped shaft design whereby the radius of the shaft immediately adjacent to the rotor is greater than an adjacent outboard section of the shaft. As a result, a chamber for housing the seal assembly is defined as the space between the stepped shaft portion, the annular seal plate, the outboard section of the shaft that has a lesser or reduced diameter, and the casing. The casing may also include a recess for providing sufficient space for the seal assembly. The larger section of the shaft is accommodated in a bushing mounted to the inside surface of the casing. The inside diameter of the bushing is large enough to accommodate the larger stepped portion of the shaft as well as the outside diameter of the seal assembly.

Abstract: A dual shaft, timed element high pressure industrial rotary lobe pump is provided. Lubricated sleeve bearings are located adjacent to the pumping elements. If the sleeve bearings are disposed on both opposing sides of the pumping elements, the lobe pump of the present invention can be operated at pressures as high as 400 psi. If sleeve bearings are disposed on one side of the pumping elements, the lobe pump can be operated at pressures up to 200 psi. Threaded thrust bearing cartridges enable fast and efficient positioning of the pumping elements during assembly without the use of shims. Recessed areas disposed in the head plate and in the casing bore provide improved loading and unloading of the pumping elements for high speed operation with reduced pressure pulsations and reduced noise. Access to the mechanical seals is simplified due to the easy removal of the timing gear box. The pump is also designed to accept standard mechanical seals as opposed to custom designed mechanical seals.

Abstract: An apparatus and method for detecting shaft misalignment wherein a sensor is employed to detect contactings between a non-concentrically rotating component and a surface and to generate an electrical signal corresponding thereto, and wherein a signal processing circuit coupled to the sensor is configured to determine whether the signal received from the sensor is characteristic of a signal that is expected whenever a rotating component contacts the surface, and if so, whether the number of signals received exceeds the minimum number expected within a predetermined time interval on the occasion of contact between a rotating component and the surface.

Abstract: An element which serves as the terminal or end point for a control system which uses a controllable plant to interface the environment, the plant is controlled by an actuating signal generated within the terminal element by three distinct algorithmic process; a real time plant simulator, a true-to-life output adjuster and a control signal processor.