Unique 2 in3 Displacement Engine for OEM

A market existed in the 2-cycle engine field for an internal combustion engine in the 1-1/2 to 2-1/2 in³ displacement range for the original equipment manufacturer. The engine had to be lightweight, compact, low in manufacturing costs, and yet offer high power output and continuous operation.

For this market, O & R Engines, Inc. designed the 2-CID Model 20 engine. The design filled a further requirement of the OEM by providing the flexibility of component design and arrangement. This paper discusses these design aspects.