Noise suppression device for a wheel assembly
AssigneeGM Global Technology Operations LLC
InventorsJinshuo Zhu, Chong Wang, Christopher A. Stirlen, Alan V. Parrett
Life of this patent
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Abstract
A wheel assembly for a vehicle includes a rim having a noise suppression device. The rim includes an outer radial surface that is concentrically disposed about a central axis. A tire is mounted to the rim to define a tire cavity between the outer radial surface of the rim and an interior surface of the tire. The noise suppression device includes a device wall that defines at least one resonator chamber, and includes a plurality of apertures allowing fluid communication between the tire cavity and the resonator chamber, with each of the plurality of apertures defining an opening area between the range of 0.03 mm2 and 0.8 mm2.
Claims8
A rim assembly comprising:
- a rim including an outer radial surface concentrically disposed about a central axis, and a noise suppression device including a device wall defining at least one resonator chamber;
- and
- at least one baffle disposed within the at least one resonator chamber;
- wherein the device wall includes a plurality of apertures, with each of the plurality of apertures defining an opening area between the range of 0.03 mm2 and 0.8 mm2;
- wherein the plurality of apertures are arranged in the device wall to define an average density between the range of 300 apertures per square meter and 100,000 apertures per square meter;
- and
- wherein each of the plurality of apertures includes a radial length relative to the central axis that is between the range of 0.1 mm and 0.5 mm.
Dependencies are inferred from the claim text.