Patent ID: 9273604
Filing Date: 2016-03-01
CPC Classification: F02B,F16C,F16F,Y10T

Claim Text:
1. A crankshaft having a front end, a rear end, and a central axis extending from the front end to the rear end, the crankshaft comprising: at least one front crankpin located in proximity to the front end; at least one rear crankpin located in proximity to the rear end; one or more central crankpins located substantially equidistant from the front crankpin and the rear crankpin; and pairs of counterweights disposed on each side of the front crankpin, the rear crankpin and the one or more central crankpins such that counterweights in each pair of counterweights are angularly offset with respect to each other, the pairs of counterweights including a first pair of counterweights disposed on each side of the front crankpin, the first pair of counterweights being arranged such that a first counterweight of the first pair of counterweights is substantially aligned with a horizontal plane perpendicular to the central axis and a second counterweight of the first pair of counterweights is arranged at an angle of 60 degrees from the first counterweight of the first pair of counterweights.