AIRCRAFT WHEEL-AND-BRAKE SET FITTED WITH A ROTARY DRIVE DEVICE

• US 20110156472A1
• Filed: 12/22/2010
• Published: 06/30/2011
• Est. Priority Date: 12/24/2009
• Status: Active Grant

• Current Assignee: Safran Landing Systems
• Original Assignee: Messier-Bugatti (Safran SA)
• Inventors: Nierlich, Florent, Bucheton, Daniel
• Granted Patent: US 8,444,086 B2
• Time in Patent Office: Days
• US Class Current: 301/6.2
• CPC Class Codes: B64C 25/405 Powered wheels, e.g. for taxing
• CPC Class Codes: B64C 25/44 Actuating mechanisms
• CPC Class Codes: Y02T 50/80 Energy efficient operational measures, e.g. ground operations or mission management

Abstract

The invention provides an aircraft wheel-and-brake set, the wheel including a rim mounted to rotate on an axle of the aircraft about an axis of rotation, and the brake including a stack of disks extending into the rim in service, and a support carrying brake actuators facing the stack of disks in order to selectively press said disks together, wherein the support carries at least one rotary drive member for driving the wheel in rotation, which drive member is carried in such a manner that it extends outside said wheel.

Claims

1. An aircraft wheel-and-brake set, the wheel including a rim mounted to rotate on an axle of the aircraft about an axis of rotation, and the brake including a stack of disks extending into the rim in service, and an actuator-carrier carrying brake actuators facing the stack of disks in order to selectively press said disks together, the actuator-carrier carrying at least one rotary drive member for driving the wheel in rotation in such a manner that the drive member extends outside the rim, wherein the actuator-carrier carries a ring gear that is mounted to rotate on the actuator-carrier about the axis of rotation of the wheel and that is driven in rotation by the rotary drive member, the ring gear being secured to the wheel in order to drive said wheel in rotation.

2. An aircraft wheel-and-brake set according to claim 1, wherein the ring gear comprises two half-gears, a first of which half-gears is directly driven in rotation by the rotary drive member, and a second half-gear is directly constrained to rotate with the wheel, coupler means being disposed in order to selectively connect the half-gears together in rotation.

3. An aircraft wheel-and-brake set according to claim 1, wherein the coupler means comprise a coupler agent disposed between an outlet shaft of the geared motor and a toothed wheel mounted to mesh with the ring gear.

4. An aircraft wheel-and-brake set according to claim 1, wherein the drive member and the ring gear are included in a single unit that is placed on the actuator-carrier with damper means being interposed thereon.