Aircraft Braking Systems Corporation

Meggitt Aircraft Braking Systems Corporation

Dana J Fehr

James L Hill

Kurt Burkhalter

Mark P Dyko

James E Houmard

John M Hall

Michael J Suponcic

Matthew E Eplin

Dene W Glaznieks

Michael B Eccles

Jamie B Clason

Various embodiments of aircraft brake assembly structures are provided for achieving noise reduction during braking activity. In certain embodiments of the invention, the actual application of force to the pressure plate is regulated such that a different number of actuator pistons are used during low-energy stops than during high-energy stops. In other embodiments of the invention, the pressure plate or endplate is augmented as to surface area in some instances and as to a taper angle in others, again to achieve a desired increase in effective pressure application during low-energy stops. In other embodiments of the invention, the stator and/or rotor disks are characterized by slots to break up the propagation of noise waves.

Aircraft brake assembly structures for reducing noise

A wheel and brake assembly is provided for use with an aircraft. A landing gear strut depends from the aircraft and an axle is mounted to the strut. At least one brake assembly housing is mounted to the axle, on either side of the strut. One or more torque take-out pins are provided on the strut to be received in mating sockets provided in the brake assembly housing. Torque from the brake assembly housing is transferred to the strut or a stationary member by way of the pins and sockets. At least one tie rod member engages lug members provided on at least one brake assembly housing and the strut or stationary member. At least two brake assembly housings mounted on opposite sides of the strut may be interconnected by at least one tie rod member. Thus, the brake assembly housing is interconnected and may be drawn toward the strut or stationary member by selective adjustment of a turnbuckle incorporated into the tie rod member. When the brake assembly housing is drawn toward a stationary member the torque take-out pins angularly bottom out in the sockets such that a pre-load force is generated between the brake assembly housing and the stationary member. By disposing a washer between the pin and the socket any excessive clearance is eliminated so as to generate another pre-load force. Furthermore, a pre-load force is created at the axle and a torque tube leg that bears upon the axle. Accordingly, vibration and noise are reduced during aircraft braking.

Pre-load device for reducing aircraft brake vibration

Growing community of inventors

Uniontown, OH, United States of America

Dana J Fehr