F - Mech Eng,Light,Heat,Weapons – 02 – B
Patent
F - Mech Eng,Light,Heat,Weapons
02
B
123/248
F02B 75/32 (2006.01)
Patent
CA 1207201
"INTERNAL COMBUSTION ENGINE" Abstract of the Disclosure The invention relates to an improved internal combustion engine including a cylinder defining a combustion chamber adapted to receive a combustible mixture for the combustion thereof, and a piston slidably mounted in the cylinder for reciprocating movement between a first limit posi- tion whereat the combustion chamber defines its minimum volume and a second limit position whereat the combustion chamber defines its maximum volume. According to the invention, a pair of rotatably mounted parallel crank-shafts are arranged equi- distantly relative to the longitudinal axis of the cylinder, each having a crank-arm rotatable about its respective crank-shaft axis. Coupling means connect the crank-shafts together for synchronising the rotation thereof with the crank- arm of one crank-shaft having an angular advance over the crank-arm of the other crank-shaft. A rocker member is pivotally connected to the piston for rocking movement about a pivot axis extending normal to the longitudinal axis of the cylinder, and a pair of connecting rods interconnect the rocker member and the respective crank-arms of the crank- shafts with each connecting rod being pivotally connected to the rocker member. The rocker member together with the connecting rods define a position control means for enabling the rocker member to rock when the piston reaches the first limit position and to thereby maintain the piston substantially stationary at the first limit position for a period of time sufficient to permit - 1 - the crank-arm of the aforesaid one crank-shaft to move past dead-center. Thus, substantially maximum com- pression can be achieved in the combustion chamber during a compression stroke of the piston when the piston is at the first limit position while the crank- arm of the aforesaid one crank-shaft is positioned past dead-center such that upon combustion of the combustible mixture maximum thrust can be imparted to the piston. - 2 -
441460
Deland Olivier
Ogilvy Renault
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