Centrifugal pump with self cooling and flushing features

Details Centrifugal pump with self cooling and flushing features Centrifugal pump with self cooling and flushing features

2006-03-07

2006-03-07

Nguyen, Ninh H. (Department: 3745)

Rotary kinetic fluid motors or pumps

With lubricating, sealing, packing or bearing means having...

For shaft sealing, packing, lubricating or bearing means

C415S231000

Reexamination Certificate

active

07008177

ABSTRACT:
A fluid pump including provisions for cooling and/or flushing in the vicinity of a static seal. In one embodiment, the invention includes an open channel fluid passageway defined on a generally flat surface of a pump housing. A centrifugal rotor with a generally flat backplate rotates proximate a surface of the housing. The fluid passageways are adapted and configured to have a pathway that includes a directional component parallel to the direction of rotation, such that fluid drag from the rotating backplate induces flow within the passageway. The passages of the exit can be positioned such that flow exiting the passageway is at least partly tangential to the seal and/or the seal housing.

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