1979-07-12
1981-08-25
Nelson, Peter A.
176 87, G21C 1928
Patent
active
042857708
ABSTRACT:
In a jet pump for a nuclear reactor a slip joint is provided between the mixer and diffuser sections thereof to facilitate jet pump maintenance and to allow thermal expansion. To limit leakage flow through the slip joint to a rate below that which causes unacceptable flow induced vibration of the pump, there is provided a labyrinth seal for the slip joint in the form of a series of flow expansion chambers formed by a series of spaced grooves in the annulus of the slip joint.
REFERENCES:
patent: 4043705 (1975-11-01), Schlosser
patent: 4092214 (1978-05-01), Schabert et al.
Chi Lawrence L.
Kudirka Alvydas A.
General Electric Company
James, Jr. Ivor J.
Nelson Peter A.
Simkins Raymond G.
Turner Samuel E.
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