HIGH TEMPERATURE PROGRESSIVE CAVITY MOTOR OR PUMP COMPONENT AND METHOD OF FABRICATION

摘要

The present application discloses a progressive cavity motor or pump component, either stator or rotor, which provides a high glass transition temperature polymeric surface on the component which becomes resilient at or below the expected operating tempera-ture of the motor or pump, but which re-mains solid at ambient temperatures, along with a method of fabricating either a stator or a rotor with such surface char-acteristics. Since the surface becomes resilient, the progressive cavity pump op-erates efficiently at temperatures above the glass transition temperature of the se-lected polymeric surface.