Sharon Gjertsen Martin

Address:

13502 Galena Crk Dr, Houston, TX 77086

Phone:

(281)5805286

VIN:

1G1AL15F177270539

Make:

CHEVROLET

Model:

COBALT

Year:

2007

US Patent:

20060278030, Dec 14, 2006

Filed:

Jun 8, 2005

Appl. No.:

11/148153

Inventors:

Josh Tavel - Grosse Pointe Woods MI, US
Frederick Hohnstadt - Clarkston MI, US
Michael Trahan - Grand Blanc MI, US
Sharon Martin - Troy MI, US
Jason Miller - Brighton MI, US

International Classification:

B62D 1/16

US Classification:

074492000

Abstract:

Vibration isolators for a steering column which are optimized to adjust the resonance frequency of the steering column so that it is not at the same frequency as the engine firing pulses of a DoD engine operating in the full economy mode window, nor at road travel vibration frequencies. The vibration isolators are composed of a resilient grommet and a rigid insert, and are located at each mounting bracket of the steering column. Adjustment of grommet durometer, grommet dimensions and grommet width relative to insert length provide a selective compression and resiliency of the grommet which selectively adjusts the resonance frequency of the steering column below the range of frequencies of the engine when operating in economy mode.