Patent ID: 6240794
Filing Date: 2001-06-05
Classification: F02B,F16H,Y10T

Abstract:
A crank assembly for a piston machine including at least one cylinder, a piston adapted to reciprocate in the cylinder for performing stroke movements therein and a piston rod connecting the piston to a crank assembly operative for conversion between reciprocating movements of the piston in the cylinder and rotary movement of the crank assembly, the piston rod having a first end connecting it to the crank assembly and a second end connecting it to the pistonthe crank assembly includingfirst and second shafts which extend in mutually coaxial relationship and each of which have oppositely disposed shaft ends leaving a spacing between said shaft ends, wherein between the shaft ends is arranged the first end of the piston-rod connecting the piston to the crank assembly supported on and movable on a circular path at a spacing around the coaxial axes of the shafts,pairs of gear wheels on both sides of the piston rod and adapted to provide rotational engagement between the piston rod and the shaft ends on both sides,wherein a lever drive means comprises a driving portion, a driven portion and an output shaft,wherein the driving portion is arranged on a shaft of said crank assembly and said driven portion is arranged on the output shaft, andwherein the shaft of the crank assembly and the output shaft are arranged in coaxial and mutually successive relationship.