Patent · US Active

Shaft assembly for aircraft engine

US10968834B2 · kind B2 · utility

0Cited by

8References

20Claims

0Family size

Assignee

PRATT & WHITNEY CANADA CORP. · CA

Inventors

Michel Labbe · Victoriaville, CA
Lukasz Pokrzywa · Trzebownisko, PL

Key dates

Filing date	Jun 28, 2019
Grant date	Apr 6, 2021
Priority date	—
Expiry date	Jul 14, 2039

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16D2001/103
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

There is disclosed an aircraft engine having: an engine shaft; a first transmission shaft in driving engagement with the engine shaft and a second transmission shaft concentric with the first transmission shaft and in driving engagement with the first transmission shaft, the second transmission shaft drivingly engageable to an engine accessory, the first and second transmission shafts rotatable about an axis; and at least two axially spaced apart annular ring seals disposed radially between the first and second transmission shafts, the at least two annular ring seals biased against both of the first and second transmission shafts.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.