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:
Jul. 06, 2021
Filed:
Feb. 07, 2019
United Technologies Corporation, Farmington, CT (US);
Rachel A. McGrath, Hartford, CT (US);
William N. Green, East Hartford, CT (US);
Raytheon Technologies Corporation, Farmington, CT (US);
Abstract
A gas turbine engine includes a shaft compartment containing at least one main shaft which rotates about a main axis of rotation; and a tower shaft engaged with the at least one main shaft for rotation about a tower shaft axis of rotation, the tower shaft being mounted in a bearing compartment extending away from the shaft compartment, wherein the bearing compartment is sealed against leakage from inside the bearing compartment to ambient. The seal can be produced using a tower shaft seal held in a seal housing and sealing against one or more faces of the tower shaft assembly or components.