Patent · US Active

Method and apparatus of connecting a fixed drive system to a rotating drive system for a tiltrotor aircraft

US9834303B2 · kind B2 · utility

5Cited by

13References

16Claims

0Family size

Assignee

Bell Helicopter Textron Inc. · US

Inventors

David R. Bockmiller · Fort Worth, US
James Everett Kooiman · Fort Worth, US

Key dates

Filing date	Aug 14, 2013
Grant date	Dec 5, 2017
Priority date	—
Expiry date	Aug 15, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/1966
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A quill shaft is configured for transferring torque and accepting misalignments between a fixed gearbox and a rotatable spindle gearbox in a propulsion system of a tiltrotor aircraft, the quill shaft includes a first splined portion configured for coupling to an output gear of the fixed gearbox, and a second splined portion configured for coupling to an input gear of the spindle gearbox. The spindle gearbox includes a rotor mast associated therewith, the spindle gearbox being rotatable so that the tiltrotor aircraft can selectively operate in a helicopter mode and airplane mode.

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