IMPROVED STATOR ASSEMBLY FOR PROGRESSIVE CAVITY PUMPING SYSTEMS

摘要

A stator (50) for use in a progressive cavity pump (100) is provided, comprising a housing (53) having a suction end (52) and a discharge end (54), and an elastomeric liner (55) disposed within the housing (53) that defines a passageway (44) for receiving a rotor (30) of the pump (100). The elastomeric liner (55) comprises a reinforced component (60) that is proximate to the discharge end (54) and that provides a landing surface (57) to resist passage of a rotor head (34) through the passageway (44).