Laminated brake rotor
AssigneeHayes Lemmerz International, Inc.
InventorJohn E. Saum
Life of this patent
Estimating the term…
Abstract
A brake rotor includes a radially inner hub or hat section having a central mounting face for mounting the rotor on an associated drive member, with an outer friction portion extending from the cylindrical hat wall. The outer friction portion includes a pair of opposite, flat annular friction rings adapted to interface with associated friction members. The outer friction portion of the rotor further includes a core extending radially outwardly from the cylindrical hat wall of the hat section. A layer of a sound dampening material is secured between the pair of outer friction ring sections and the core. The rotor of the invention transmits less noise than conventional rotors.
Claims16
A brake rotor comprising
- a hat section having a central mounting face with a cylindrical hat wall extending therefrom;
- and
- an outer friction portion including a core extending radially outwardly from the cylindrical hat wall of the hat section, a pair of annular ring sections, and a sound dampening layer secured between the pair of outer friction ring sections and the core, wherein the sound dampening layer is formed of a material having a greater tendency to dampen the transmission of sound therethrough relative to the material forming the outer friction ring sections.
A brake rotor comprising:
- a hat section including a central mounting face and a cylindrical hat wall extending from said mounting face;
- and
- a pair of annular ring sections formed with a laminated construction comprising a pair of sound dampening ring sections with a pair of outer friction ring sections secured thereto, wherein the sound dampening ring sections are formed of a material which has a greater tendency to dampen the transmission of sound therethrough relative to the material forming the outer friction ring sections.
A brake rotor comprising:
- a hat section including a central mounting face and a cylindrical hat wall extending from said mounting face;
- and
- a core formed integrally of cast grey iron with and extending from the hat wall of the hat section;
- a pair of sound dampening ring sections comprised of aluminum and secured to the core;
- and
- a pair of outer friction ring sections formed of steel and secured to the sound dampening ring sections.
Dependencies are inferred from the claim text.