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:
Aug. 02, 2022
Filed:
Feb. 26, 2020
Applicant:
Borgwarner Inc., Auburn Hills, MI (US);
Inventors:
Kevin B. Todd, Freeville, NY (US);
Dale N. Smith, Freeville, NY (US);
Assignee:
BorgWarner Inc., Auburn Hills, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 7/08 (2006.01); F02B 67/06 (2006.01);
U.S. Cl.
CPC ...
F16H 7/0836 (2013.01); F02B 67/06 (2013.01); F16H 7/0848 (2013.01); F16H 2007/0806 (2013.01); F16H 2007/0812 (2013.01); F16H 2007/0859 (2013.01); F16H 2007/0893 (2013.01);
Abstract
A tensioner for tensioning a chain span which uses two pistons. The movement of the two pistons may be coupled together. The first piston provides damping to the chain span and a second piston provides variable, dominant and automatically adjusting spring force to the chain span. The tensioner automatically adjusts the mean tension force to keep the chain tension as low as possible without sacrificing chain control, significantly improving drive efficiency at new chain conditions and conditions with dynamic loads.