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:
Mar. 13, 2018
Filed:
Sep. 11, 2014
Applicant:
Ntn Corporation, Osaka, JP;
Inventors:
Assignee:
NTN CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H 7/20 (2006.01); F16H 7/18 (2006.01); F16H 7/06 (2006.01); F16H 7/08 (2006.01);
U.S. Cl.
CPC ...
F16H 7/20 (2013.01); F16H 7/06 (2013.01); F16H 7/18 (2013.01); F16H 2007/0865 (2013.01); F16H 2007/0872 (2013.01); F16H 2007/0893 (2013.01);
Abstract
A chain transmission device includes chain guides capable of guiding a chain. The chain guides include a plurality of spaced apart rollers for guiding the chain, and a distance L (m) between contact points of a trained portion of the chain is set to satisfy the following inequality: where ωis a maximum excitation frequency (Hz) from a crankshaft, ρ is a mass of the chain per unit length (kg/m), and T is a time-average tension of the chain (N).