Whilst not a motorcycle manufacturer, Ralph Sarich has an important place in Australian automotive history. Backers included BHP and Ford.
"Sarich founded the Orbital Engine Company, which developed the orbital combustion process (OCP) engine, based on the two-stroke concept.
The OCP technology was sold as intellectual property (IP) to automobile, marine and motorcycle manufacturers and was incorporated in production engines to varying degrees; namely from complete systems to the improvement of their own technology, via knowledge gained from their IP purchases. All licensing payments were conditional upon the delivery of engines meeting numerous high emissions standards, fuel economies and other technical criteria. All deliveries met these criteria prior to Sarich's retirement in 1992, resulting in no dependent monetary penalties ever being incurred to that point in time.
However, key components of Sarich's engine could not be cooled and others could not be readily lubricated. The engine was susceptible to overheating, and the invention was eventually deemed too impractical."
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