Patent application number | Description | Published |
20120325383 | ACOUSTICAL CORE FOR ABSORBING NOISE WITHIN A TIRE INTERIOR CAVITY - A tire assembly includes an acoustic foam core disposed within a cavity of the tire for attenuating noise. The foam core defines an expanding radial force that biases the foam core against an inner surface of the tire to secure a position of the foam core relative to the tire. The foam core may include an annular base having a plurality of nodules disposed on an outer periphery of the annular base for engaging the inner surface of the tire and to position the annular base away from the inner surface of the tire. The foam core may further include a plurality of positioning tabs disposed on opposing axial ends of the annular base for engaging side walls of the tire to position the annular base away from the side walls of the tire. | 12-27-2012 |
20140182959 | ACOUSTIC NOISE DAMPING FOR A VEHICLE - Methods and apparatus are provided for attenuating vibrations in the header of a vehicle to reduce acoustic noise. The apparatus includes a fluid damper configured to be coupled to a header of a vehicle and an accelerometer for sensing vibrations in the header and providing a signal to adjust the fluid damper thereby attenuating the vibrations. A method is provided which includes receiving a signal indicating a vibration in a header of a vehicle and adjusting a fluid damper coupled to the header in response to the signal thereby attenuating the vibration. | 07-03-2014 |
20140188336 | VIBRATION DAMPING FOR A CONVERTIBLE VEHICLE - Methods and apparatus are provided for attenuating vibrations in the header of a convertible vehicle. The apparatus includes a fluid damper configured to be coupled to a header of a convertible vehicle and an accelerometer for sensing vibrations in the header and providing a signal to adjust the fluid damper thereby attenuating the vibrations. A method is provided which includes receiving a signal indicating a vibration in a header of a convertible vehicle and adjusting a fluid damper coupled to the header in response to the signal thereby attenuating the vibration. | 07-03-2014 |
20150047920 | WHEEL ASSEMBLY FOR A VEHICLE AND A METHOD OF MANUFACTURING THE WHEEL ASSEMBLY - A wheel assembly for a vehicle and a method of manufacturing the wheel assembly for the vehicle are disclosed. The wheel assembly includes a rim and a tire. The tire includes a distal wall, a first side wall and a second side wall, with the first and second side walls extending from the distal wall and each of the side walls attached to the rim such that the distal wall is spaced from the rim to define an interior cavity between the tire and the rim. The wheel assembly also includes a resonator defining a hole such that the resonator presents an inner wall defining a boundary of the hole. The hole cooperates with the interior cavity. The resonator includes an insert mounted to the inner wall. The insert defines an aperture in fluid communication with the interior cavity for attenuating sound produced inside the interior cavity. | 02-19-2015 |
20150048669 | NOISE SUPPRESSION DEVICE FOR A WHEEL ASSEMBLY - 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 mm | 02-19-2015 |
20150211959 | SYSTEMS AND METHODS FOR DETERMINING OSCILLATIONS OF A TIRE - Methods and systems are provided for determining frequencies associated with tire crown bending. The system includes a vibration generating device configured to excite vibrations through a tire. The system further includes a vibration sensing arrangement configured to sense vibrations at a plurality of sensing points on the tire. A computer is in communication with the vibration sensing arrangement and configured to determine a first frequency associated with bending of the crown of the tire based at least partially on phase differences between the sensed vibrations at the plurality of points on the tire. | 07-30-2015 |
20160121648 | WHEEL WITH ALUMINUM FOAM FOR TIRE CAVITY NOISE SUPPRESSION - A wheel assembly includes a wheel including a spoke portion radially supporting a rim portion about a central axis, wherein the rim portion presents a radial outer surface relative to the central axis. A tire is mounted to the wheel and cooperates with the wheel to define a tire cavity between the radial outer surface of the rim portion and the tire. A foamed aluminum portion is supported by the wheel, and includes a plurality of pores arranged to define an open-cell foam. The plurality of pores of the foamed aluminum portion is disposed in fluid communication with the tire cavity to absorb noise from within the tire cavity. The foamed aluminum portion may be integrally cast with the wheel, or otherwise affixed to the wheel. | 05-05-2016 |