Patent ID: 7650870

Claim:
A reciprocating piston machine of the crankshaft beam type, the machine comprising: at least one throw with attached crankpin included with a crankshaft that is rotatably mounted in a crankcase; a beam connecting rod having a lower and an upper end, the beam connecting rod pivotally connected at its lower end to the crankpin; first and second rocker beam disposed on one side of the crankshaft and extending in generally opposite directions, the centrally located end of each beam is pivotally connected to the upper one end of the beam connecting rod by a beam rod pin, the centrally located end of the first beam having a beam pinhole that the beam rod pin passes through, the centrally located end of the second beam having a beam bearing slot that the beam rod pin passes through, the beam rod pin reciprocating within the beam bearing slot in the general direction of the longitudinal axis of the second beam, the first and second beams connected to the beam rod pin by a siamesed, side-by-side or forked type connection; fixed pivot pins attached to the crankcase, each pivot pin pivotally connecting their respective beam at a generally central pivotal axis; at least one cylinder and operatively associated piston mounted for reciprocation within the cylinder, the at least one cylinder attached to the crankcase; and at least one piston rod, at least one end of the beams functionally connected to a corresponding piston rod, the opposite end of the piston rod pivotally connected to the piston.