Wet disc pack with modified stationary discs
AssigneeMeritor Heavy Vehicle Systems, LLC
InventorsLee A. Bissonnette, Glenn W. Herron
Life of this patent
Estimating the term…
Abstract
A stationary disc for use in a wet disc brake assembly includes a plurality of holes drilled through the disc. The holes change the mass of the disc, and thus change the frequency of the entire disc brake assembly. This portion of the invention is particularly useful to modify the frequency such that it is not approximately equal to the frequency of an associated stationary member. In addition, the holes may be plugged with a material that becomes viscous at expected operational temperatures of the brake. This is valuable to provide a vibration dampener, that inherently becomes actuated when the brake heats.
Claims13
A wet disc brake assembly comprising:
- a plurality of rotating discs rotating with a rotating shaft;
- a plurality of stationary discs fixed against rotation on a stationary member, said discs on both said shaft and said member being axially movable;
- a piston for compressing said rotating and stationary discs to engage each other;
- and
- at least one of said discs being provided with spaces to reduce the mass of said disc, and thus the mass of said brake assembly, said discs extending between two side faces, and said spaces being formed within said disc, at a location between said side faces such that said spaces do not extend outwardly to said side faces.
A stationary disc for use in a wet disc brake assembly comprising:
- a disc body having an inner peripheral bore, and an outer peripheral surface, said outer peripheral surface being provided for engagement on a fixed member;
- and
- a plurality of holes extending through said body from said inner peripheral surface to said outer peripheral surface, said disc body extending between two side faces, and said holes extending through said body and between said side faces, and not extending outwardly to said side face.
Dependencies are inferred from the claim text.