Sealing device for pump impeller

Details Sealing device for pump impeller Sealing device for pump impeller

1996-04-01

1996-11-26

Look, Edward K.

Rotary kinetic fluid motors or pumps

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

Means to seal radial flow pump runner inlet from outlet

4151742, 277188A, F04D 2916

Patent

active

055778860

ABSTRACT:
The inlet part of the pump housing includes a collar which concentrically surrounds a corresponding opposite collar formed part of the pump impeller inlet, thus permitting any possible leakage flow to be in parallel with the main flow into the impeller and minimizing the disturbance in the main flow. In order to minimize the leakage flow, an O-ring is arranged in front of the opening to a slot between the parts.

REFERENCES:
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patent: 3741679 (1973-06-01), Johnston
patent: 4243233 (1981-01-01), Arai
patent: 4291890 (1981-09-01), Walker
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patent: 4909707 (1990-03-01), Wauligman et al.
patent: 4927327 (1990-05-01), Keller
patent: 5071318 (1991-12-01), Bice et al.
patent: 5129795 (1992-07-01), Hyland
patent: 5427498 (1995-06-01), Lehe et al.

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