Internal-combustion engines – Transmission mechanism from piston – Including clutch
Patent
1986-04-30
1987-09-01
Feinberg, Craig R.
Internal-combustion engines
Transmission mechanism from piston
Including clutch
123 52A, 123 78E, 123 54B, F02B 7532
Patent
active
046901132
ABSTRACT:
The invention relates to an engine including a cylinder defining a combustion chamber which receives a combustible mixture for the combustion thereof, a piston slidably mounted therein for reciprocation between a first limit position whereat the chamber defines its minimum and maximum volume, a pair of rotatably mounted parallel crankshafts arranged equidistantly relative to the longitudinal axis of the cylinder, each having a crank-arm rotatable about its respective crankshaft axis, and means coupling the crankshafts together for synchronizing rotation thereof with the crank-arm of one crankshaft having an angular advance over the crank-arm of the other crankshaft. According to the invention, a single-arm lever is pivotally connected at one end thereof to the piston for pivotal movement about a pivot axis extending normal to the cylinder longitudinal axis, and a pair of connecting rods interconnect the lever and the respective crank-arms of the crankshafts with one connecting rod being pivotally connected to the lever at a free end thereof and the other connecting rod pivotally connected to the lever intermediate the ends thereof. The lever with the connecting rods define a position control means for enabling the lever to pivot and move past the longitudinal axis when the piston reaches the first limit position and to maintain the piston substantially stationary at the first limit position for a time period sufficient to permit the crank-arm of the aforesaid one crankshaft to move past dead-center. Thus, substantially maximum force is transmitted to the connecting rod connected to the crank-arm having the angular advance.
REFERENCES:
patent: 441582 (1890-11-01), Quack
patent: 1379115 (1921-05-01), Mallory
patent: 1384343 (1921-07-01), Powell
patent: 4505239 (1985-03-01), Deland
patent: 4517931 (1985-05-01), Nelson
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