SP Cross Section
The rotating cylinder is effectively combined with the rotary valve in a single component hence - RCV - Rotating Cylinder Valve.
CD Cross Section
| How It Works | |
| The RCV 4-cycle engine has only one more moving component than a 2-cycle engine -the rotating cylinder itself. The cylinder is suspended between two bearings which allow it to rotate freely around the piston; the piston, and crank are entirely conventional. A gear formed around the base of the cylinder meshes with a gear on the crank. As the piston reciprocates and the crank turns, the cylinder rotates around the piston. |
SP Cross Section |
|
At the top end of
the rotating cylinder there is a single port leading to the combustion chamber. This
is surrounded by a fixed timing ring with three radially arranged ports; inlet, ignition
and exhaust. This simple valve arrangement serves the combustion chamber as the
engine cycles through the conventional 4-cycles: induction, compression, power and
exhaust. Ignition is achieved through a standard 4-cycle glow plug exposed once only
during each complete cycle. The rotating cylinder is effectively combined with the rotary valve in a single component hence - RCV - Rotating Cylinder Valve. |
CD Cross Section |
|
|
|
| Breakdown of Main Components | |
SP Series
|
CD Series |