Centrifugal pump for the delivery of hot media

Details Centrifugal pump for the delivery of hot media Centrifugal pump for the delivery of hot media

1996-05-20

1998-08-18

Kwon, John T.

Rotary kinetic fluid motors or pumps

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

415110, F04D 2908

Patent

active

057951292

ABSTRACT:
A floating-ring seal in a seal chamber is disposed on a pump casing at said end of a housing on the side remote from said pump. The seal chamber is isolated from the pump side by a contact seal element that is seated close to a rotating pump part. The seal chamber has a cooling circuit that is preferably filled with a fluid that is identical to the pumping medium. The seal chamber is separated from pumping medium by the seal element. A pressure compensation device is disposed in the region of the seal element in case fluid leaks from the seal chamber. The pressure compensation device fills the seal chamber with pumping medium to compensate for the leaked fluid.

REFERENCES:
patent: 3090320 (1963-05-01), Hummer et al.
patent: 3825270 (1974-07-01), Paramonoff et al.
patent: 3999882 (1976-12-01), Purton
patent: 4053163 (1977-10-01), Vegella
patent: 5180297 (1993-01-01), Hansen et al.
Ehrhard Mayer, Axiale Gleitdichtungen, VDI-Verlag GmbH, Dusseldorf XP002008593, pp. 200-221.

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