Patent ID: 8757125

Claim:
An engine comprising: (i) a piston; (ii) a crankpin, the crankpin comprising: (a) a crankpin axis portion; (b) a first main crankpin portion, the first main crankpin portion comprising a distal end connected to a first end of the crankpin axis portion; (c) a second main crankpin portion, the second main crankpin portion comprising a distal end connected to a second end of the crankpin axis portion; (iii) a connecting rod, the connecting rod pivotally coupled to the piston, and rotationally coupled to the crankpin axis portion; and (iv) a crankshaft, the crankshaft comprising: (a) a first crankshaft portion, the first crankshaft portion connected to a proximal end of the first main crankpin portion; (b) a second crankshaft portion, the second crankshaft portion connected to a proximal end of the second main crankpin portion; wherein the first main crankpin portion follows a curved path between the first end of the crankpin axis portion and the first crankshaft portion; wherein the second main crankpin portion follows a curved path between the second end of the crankpin axis portion and the second crankshaft portion.