Abstract: A brushless direct-current motor is provided includes an inner stator and an outer rotor. The rotor includes a rotor core disposed around the stator, an inner annular member mounted on a rotor shaft, and a plurality of radial blades extending angularly from the rotor core to the inner annular member forming a fan. A first end cap is provided including a radial back plate proximate the fan and a center opening in the radial back plate through which the rotor shaft extends. A second end cap is provided including a main body disposed adjacent the stator opposite the fan. The radial back plate of the first end cap includes at least one sloped surface forming at least one air gap such that the airflow generated by the fan is centrifugally guided within the first end cap by the sloped surface and caused to exit through the air gap.

Abstract: A method for the separation of fine particles from granulate-like bulk material conveyed in a pipeline as a product flow by means of a compressed air or vacuum conveyance, characterized in that the product flow is radially dispersed at the intake end of a pipe screen integrated in the pipeline in an airtight manner, and aerated there by a cleansing airflow, flowing at an angle to the direction of the dispersed product flow, in the region of a cleansing plane, which deflects the lighter particles, fibers, clusters, dust or similar items carried in the product flow from the trajectory of the heavier granulate, and conveys said into an annular sheath through which the cleansing air flows, from which they are removed by means of a separator.

Abstract: A method for the separation of fine particles from granulate-like bulk material conveyed in a pipeline as a product flow by means of a compressed air or vacuum conveyance, characterized in that the product flow is radially dispersed at the intake end of a pipe screen integrated in the pipeline in an airtight manner, and aerated there by a cleansing airflow, flowing at an angle to the direction of the dispersed product flow, in the region of a cleansing plane, which deflects the lighter particles, fibers, clusters, dust or similar items carried in the product flow from the trajectory of the heavier granulate, and conveys said into an annular sheath through which the cleansing air flows, from which they are removed by means of a separator.

Abstract: A cellular wheel sluice, comprising a housing with an inlet opening and an outlet opening, side covers, a cellular wheel with a shaft, and the bearing of the shaft with fixed and loose bearing.

Abstract: A pipe shunt for pneumatically fed bulk goods, comprising a housing with three pipe connections associated with one another and one stopcock, rotatably supported in this housing by a pivot pin and connecting the three pipe connections with one another through two flow channels, each flow channel comprising one length of pipe and the two lengths of pipe being joined to one another in the region of the respective ends each via one adapter and in their middle via the pivot pin of the stopcock, characterized in that a pipe entrance disposed in the housing of the pipe shunt communicates with one at a time of the two pipe drains disposed in the housing through a flexibly embodied spiral hose that communicates with these pipe connections, is prestressed in curved fashion between them, and is disposed with a slide with supporting angle brackets.