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The aim with this engine was to create an internal combustion with the charm of a model steam engine. I thought the best way to do this would be to have an open crank, which of course requires the creation of an alternate pressure chamber. I did this by taking some inspiration from a double acting steam engine. The chamber behind the piston is responsible for the intake, compression and porting of the mixture to the chamber in front of the piston. In the front chamber the mixture is compressed a second time, which increase its temperature considerably. The combined heat of the gas and the filament of the glow plug (which hadn't been added at the time of these photographs) cause ignition. The piston is forced back, turning the crank and exhausting the burnt mixture. The momentum of the flywheel then forces the first part of the cycle and it all begins again. The carburetor is a simple venturi carburetor, adjusted by a needle valve.  peake-engines@hotmail.com |
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