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:
Jul. 07, 2009
Filed:
Nov. 20, 2007
Stefan Quiring, Leverkusen, DE;
Harald Stoffels, Cologne, DE;
Klaus P Kuepper, Dormagen, DE;
Ford Global Technologies, LLC, Dearborn, MI (US);
Abstract
A counterweight arrangement for an internal combustion engine with three cylinders. The internal combustion engine having a crankshaft rotating about an axis of rotation, with three cranks which succeed one another in the axial direction with respect to the axis of rotation and are distributed at angular intervals of 120° and each crank corresponding to a respective cylinder, the counterweight arrangement including at least two counterweights for at least partial compensation of inertia forces caused by rotating masses on the crankshaft, wherein exactly two counterweights are provided for the two outer cranks, at least one of the two counterweights being arranged in a position which is rotated about the crankshaft axis with respect to an assigned crank through angle (α), the amount of which differs from 30°+N*180°, N being equal to a natural number or equal to zero.