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Electrically heated balance piston seal

Patent ·
OSTI ID:1637862

A balance piston seal assembly for a balance piston of a compressor is provided. The balance piston seal assembly may include a balance piston seal configured to be disposed about the balance piston such that an inner radial surface of the balance piston seal and an outer radial surface of the balance piston define a radial clearance therebetween. The balance piston seal assembly may also include a plurality of heaters in thermal communication with the balance piston seal and configured to heat and thermally expand the balance piston seal and thereby increase a radial length of the radial clearance.

Research Organization:
Dresser-Rand Co., Olean, NY (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FE0000493
Assignee:
Dresser-Rand Company (Olean, NY)
Patent Number(s):
10,584,709
Application Number:
15/072,723
OSTI ID:
1637862
Country of Publication:
United States
Language:
English

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