Reciprocating IC engine - has single valve in each cylinder and changeover slider in each manifold connection

摘要

The engine has a cylinder with a cylinder head (1). There is a single-cam-operated poppet valve (2) in the head. The inlet (4) and exhaust (5) passages in the cylinder head both lead to the one valve opening A cylindrical drum (7) immediately above the valve is rotated by a gear (6) from the camshaft. The drum has a port passage (8) through it. As the drum rotates, the passage communicates the valve opening alternately with the inlet and exhaust passages.