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:
Dec. 09, 2003
Filed:
Jun. 29, 2001
Alfons Linder, Pforzheim, DE;
Johannes Krauss, Ludwigsburg, DE;
Harley-Davidson Motor Company Group, Inc., Milwaukee, WI (US);
Abstract
A crankshaft drive for an internal-combustion engine includes a crankshaft, a connecting rod assembly coupled to the crankshaft, and a balancing shaft arranged parallel to the crankshaft and at a distance r from the crankshaft. A balancing weight extends from the balancing shaft for balancing mass forces caused by the rotation of the crankshaft. A recess is formed in the balancing weight, so that during rotation of the balancing shaft, the balancing weight does not interfere with the rotating crankshaft and connecting rod assembly. The inclusion of the recess allows the distance r between the crankshaft and the balancing shaft to be reduced. Preferably, a rib is formed on one side of the balancing shaft to strengthen the balancing shaft.