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:
Dec. 15, 2020
Filed:
Apr. 23, 2018
Pratt & Whitney Canada Corp., Longueuil, CA;
Maksim Pankratov, Mississauga, CA;
PRATT & WHITNEY CANADA CORP., Longueuil, CA;
Abstract
A sealing assembly for sealing between an oil cavity and an air cavity of a gas turbine is provided. The sealing assembly comprising a seal having a seal element and a circumferential seal housing receiving the seal element. The seal housing has an annulus extending circumferentially around a center axis, radially between an outer periphery and an inner periphery, and axially along the center axis between a first surface and a second surface. The seal housing has a collecting channel defined circumferentially in the inner periphery about the center axis and a draining pocket defined in a portion of the seal housing configured and disposed to in use collect liquid oil during engine operation. The draining pocket extends from the collecting channel to the first surface and configured to communicate collected liquid oil from the collecting channel to the oil cavity.