Rotor-Wellebaugruppe für eine Rotationspumpe

摘要

The subassembly includes a lobed rotor comprising a cast member, each of the lobes of the rotor defining a hollow chamber. The rotor includes a generally cylindrical web portion surrounding the driveshaft and disposed axially between the forward and rearward locations. Each of the lobes cooperates with the cylindrical web portion to define a core opening, adapted to facilitate removal of a core from the hollow chamber. Each of the core openings provide open communication between its respective hollow chamber and the shaft bore, the core opening comprising the only communication between its respective hollow chamber and the exterior of the rotor. Each of the core openings are disposed axially between the forward and rearward locations.