High-performance silent chain

Patent No. 7,404,778

Issued: July 29, 2008
Filed: March 22, 2007

Inventors: Butterfield; Roger P. (Trumansburg, NY)
Assignee: BorgWarner Inc. (Auburn Hills, MI)


A hybrid roller/silent chain of the present invention has the wear resistance of a roller chain combined with the noise performance of a silent chain. This is accomplished with the use of transverse load-bearing elements that allow increased bearing area for the articulating members of the chain by allowing load to be transmitted through both the inside and outside diameter of the element in the same plane. In some embodiments, the transverse load-bearing elements are bushings. In other embodiments, the elements are projections extending from non-guide row inside links.

Reference to Related Applications

This application is a continuation of application Ser. No. 10/895,151, filed Jul. 20, 2004 now abandoned, entitled "HIGH-PERFORMANCE SILENT CHAIN", which is a continuation-in-part application of application Ser. No. 10/650,539, filed Aug. 28, 2003, entitled "IMPROVED SILENT CHAIN", which is now U.S. Pat. No. 7,056,248. The aforementioned applications are hereby incorporated herein by reference.


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