Pump unit

Details Pump unit Pump unit

1982-06-14

1984-09-18

Marcus, Stephen

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

415170R, F04D 2908

Patent

active

044721099

ABSTRACT:
A pump unit comprises an electric motor (11) and a centrifugal pump coupled thereto, whose pump impeller (14) is located on an extension of the motor shaft projecting into the pump casing (13) and has annular sealing members (141) on the back facing the motor (11) which, on delivering sewage or similar liquids, prevent the penetration of filamentary or fibrous constituents contained in the flow medium into the space behind the pump impeller (14). The annular sealing members, which are movable relative to one another, have on their periphery axially directed and preferably corrugated or sawtooth or trapezoidal profiling. The axially projecting corrugations or the like can preferably run round the periphery and the profiled edge portion of one ring can be at least substantially covered by the unprofiled edge portion of the other ring.

REFERENCES:
patent: 2066505 (1937-01-01), Wolfe
patent: 3068801 (1962-12-01), Murray
patent: 3076412 (1963-02-01), Harker et al.
patent: 3814551 (1974-06-01), Weis

Affiliated with

Also associated with

Rating

Pump unit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pump unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pump unit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-791498