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. 08, 1983
Filed:
Apr. 21, 1981
Applicant:
Inventor:
George Pask, Stanton-by-Bridge, GB;
Assignee:
Rolls-Royce Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D / ; F01D / ; F16J / ;
U.S. Cl.
CPC ...
277-3 ; 277 27 ; 277 91 ; 415115 ; 416 95 ;
Abstract
A seal for use between the turbine rotor of a gas turbine engine and associated static structure comprises a ring of low-friction material which cooperates with the surface of the rotor to form an air bearing. The ring carries a sealing member which cooperates with a surface of the rotor to form a seal. The air bearing ensures that the sealing member is maintained at a constant spacing from the rotor, and this spacing may thus be maintained at a low value.