The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 19, 2005
Filed:
Apr. 22, 2003
Harsh Vinayak, Meriden, CT (US);
Bruce D. Hansen, Shelton, CT (US);
Edward J. Karedes, Cheshire, CT (US);
Clark V. Cooper, Glastonbury, CT (US);
Lawrence M. Zunski, Seymour, CT (US);
Harsh Vinayak, Meriden, CT (US);
Bruce D. Hansen, Shelton, CT (US);
Edward J. Karedes, Cheshire, CT (US);
Clark V. Cooper, Glastonbury, CT (US);
Lawrence M. Zunski, Seymour, CT (US);
Sikorsky Aircraft Corporation, Stratford, CT (US);
Abstract
A method for improving acoustic and vibrational properties of gears includes determining the transmission errors of intermeshing gears due to stiffness variations in the gear teeth, performing Gear Tooth Topological (GTT) modifications to compensate for the errors, and isotropically processing the gears to produce an ultra-smooth surface finish. Additional errors from isotropic processing, machining, loading, thermal effects and/or load sharing may be summed with the errors from the stiffness variations and used for the GTT modifications. The teachings of the present invention may reduce noise by as much as 13 to 15 dB.