Seal arrangement

Details Seal arrangement Seal arrangement

2011-07-19

2011-07-19

Patel, Vishal (Department: 3676)

Seal for a joint or juncture

Seal between relatively movable parts

Brush seal

Reexamination Certificate

active

07980562

ABSTRACT:
Seal arrangements utilizing leaf seal elements are susceptible to excessive wear at their tips due to blow-down pressures. When the seal element is forced against a rear surface across the pressure differential between the sides A, B of an arrangement. These tips may be forced into engagement with the rotating shaft and therefore wear on the shaft as well as at the tip occurs. By providing channels which extend laterally across more than one seal element pressure relief is maintained and therefore a limit to blow-down force maintained. The channels also extend radially and normally on a low pressure side of the seal arrangement.

REFERENCES:
patent: 5135237 (1992-08-01), Flower
patent: 6173962 (2001-01-01), Morrison et al.
patent: 6267381 (2001-07-01), Wright
patent: 6840518 (2005-01-01), Boston
patent: 7066468 (2006-06-01), Uehara et al.
patent: 2006/0214378 (2006-09-01), Zheng
patent: 0 945 654 (1999-09-01), None
patent: 1 180 623 (2002-02-01), None
patent: 1 308 655 (2003-05-01), None
patent: 1 653 129 (2006-05-01), None
patent: A-2004-162569 (2004-06-01), None
patent: WO 03/089801 (2003-10-01), None
patent: WO 2006/104514 (2006-10-01), None
European Search Report issue in European Application No. EP 07 252379 dated Jan. 27, 2011.

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