PRESSURE REDUCING ROTOR ASSEMBLY FOR A PUMP

摘要

A rotor assembly for a centrifugal pump includes a rotor and a rotor cover, defining a fluid chamber therebetween, and having openings or channels that are provided in either the rotor cover or the rotor, or both, to direct fluid from the fluid chamber into the rotor or rotor cover of the rotor assembly to provide reduction of increased pressure that is experienced within the fluid chamber, especially at or near the center of the fluid chamber.

主权项

1. A rotor cover for a rotor assembly for a centrifugal pump, comprising:
a body having a rotational axis, a center portion about the rotational axis and a peripheral outer portion radially spaced from the center portion, the body further having a first side that, in use, is oriented away from the fluid chamber of a rotor assembly and a second side that, in use, is oriented toward the fluid chamber of a rotor assembly; a fluid inlet portion located at the center portion of the body and positioned on the first side of the body; at least one primary channel formed in the body extending from the fluid inlet portion to proximate the peripheral outer portion of the body; and at least one secondary channel formed in the body providing a pathway for fluid to move from a point proximate the second side of the body toward the peripheral outer portion of the body.