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The Park-a-Stick Clip replaced this item
Novel product designs which have not progressed to manufacture
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The Park-a-Stick Clip replaced this item
Top view of model of 4 cylinder engine (bore/stroke ratio 1.25:1)
Underside view of model of 4 cylinder engine (1050 cc)
Main features of this novel mechanism:
Uses curved cylindrical bores in
which the pistons oscillate in a radius arc and therefore no contact is
made between the piston and the cylinder wall (only the piston ring makes
contact).
Very short lightweight pistons
(12mm) resulting in very short bores giving a lightweight cylinder block.
Low oscillating mass.
Low friction mechanism (light finger
pressure on a piston turns the output shaft).
Short overall height with cylinder
head fitted resulting in a low centre of gravity for the whole engine.
Compact and relatively lightweight
assembly.
Relatively small number of components in the assembly.
Oscillating shaft can be used to pump lubricating oil
(internally), coolant and fuel (externally).
A range of bore/stroke ratios possible.
Many other geometric arrangements possible utilising
the same principles.
Contact Demit Designs if you are interested in using this novel concept. info@demit.free-online.co.uk
UK Patent Application 0100395.3
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This page last updated 10 February 2002