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:
Oct. 29, 2013
Filed:
Mar. 22, 2011
Paul A. Hayes, Columbus, IN (US);
Matt Reeves, Bloomington, IN (US);
Dhanesh Purekar, Columbus, IN (US);
Paul A. Hayes, Columbus, IN (US);
Matt Reeves, Bloomington, IN (US);
Dhanesh Purekar, Columbus, IN (US);
Cummins Intellectual Properties, Inc., Minneapolis, MN (US);
Abstract
This disclosure provides crankshaft damper and tone wheel assembly having a low noise characteristic. The crankshaft damper and tone wheel assembly can provides both damping of vibrations excited in a crankshaft of an internal combustion engine and an indication of the rotational speed or position of the crankshaft. The crankshaft damper including a hub portion and a ring-shaped portion connected to the hub portion by plural spokes, and the ring-shaped portion has an inner circumference that surrounds an area including the hub portion and the plural spokes. The tone wheel includes an annular-shaped portion connected to the crankshaft damper and having an inner diameter, an outer diameter, plural teeth arranged at an equal pitch along the outer diameter, and a same rotational axis as the crankshaft damper. To reduce transmitting noise of vibrations excited in the crankshaft, the annular-shaped portion does not overlap a substantial amount of the area defined by the inner circumference of the ring-shaped portion when viewed along a direction of the rotational axis.