Patent ID: 8776739

Claim:
A system comprising: a cam that rotates on a camshaft of an internal combustion engine comprising opposing first and second pistons and a sleeve valve having a central axis, the first piston, the second piston and a wall of the sleeve valve at least partially defining a combustion chamber, the wall of the sleeve valve defining a cylinder, the cam being positioned external to the cylinder and disposed on a first side of the central axis; and a rocker arm that actuates the sleeve valve, the rocker arm comprising a rocker pivot connection point located on a distal end of the rocker arm, which is disposed on an end opposite from a proximate end of the rocker arm that is deflected by action of the cam, the rocker pivot connection point positioned external to the cylinder and disposed on a second side of the central axis opposite to the first side of the central axis, the rocker arm comprising a contact point located between the rocker pivot point and the proximate end, the contact point acting on a component of the sleeve valve to actuate the sleeve valve.