Crankshaft

摘要

A crankshaft having a front end, a rear end, and a central axis extending from the front end to the rear end is provided. The crankshaft includes a front crankpin, a rear crankpin, and one or more central crankpins. The front crankpin is located in proximity to the front end and the rear crankpin is located in proximity to the rear end. Further, the one or more central crankpins are located substantially equidistant from the front crank pin and the rear crankpin. The crankshaft further includes pairs of counterweights disposed on each side of the front crankpin, the rear crankpin and the one or more central crankpin. The counterweights are disposed such that counterweights in each pair of counterweights are angularly offset with respect to each other.

主权项

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.