The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 05, 1996
Filed:
Aug. 16, 1994
Applicant:
Inventors:
Philip J Millener, Bristol, GB;
Timothy M Edmunds, Bristol, GB;
Assignee:
Rolls-Royce PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277 53 ; 4151735 ; 4151745 ;
Abstract
In a brush seal adapted for use in disturbed fluid flow conditions the upstream side-plate is formed of porous material or has foraminate region. In conventional seals disturbed flow can generate a flow adjacent the face of the seal bristle pack which tends to lift bristles away from the second sealing element. Seal leakage is consequently increased. The foraminate or porous upstream side-plate reduces disturbing forces on the bristles by modifying flow patterns to avoid forces which lift the bristles.