Thermal protection shield for a rotating shaft

Details Thermal protection shield for a rotating shaft Thermal protection shield for a rotating shaft

2006-04-04

2006-04-04

Binda, Greg (Department: 3679)

Pumps

Motor driven

With means to prevent heat transfer between pump and motor

C415S177000

Reexamination Certificate

active

07021908

ABSTRACT:
A thermal protection shield for a rotating shaft of a primary coolant pump shaft of a nuclear power station includes, in the thermal transition region between the hot fluid and the cold fluid, a ring of nickel alloy shrunk onto the shaft. An external ring of austenitic stainless steel is shrunk at each of its ends onto the ring of nickel alloy. Between the two shrunk-on ends, a cylindrical cavity forms a clearance with the external surface of the nickel alloy ring.

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patent: WO 01/94069 (2001-12-01), None
France Search Report, FA 613047, FR 0115076, Aug. 2, 2002, pp. 1-2.

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