Info about this design

This demo shows the principle of operation of a 4-stroke interactive bi-directional rotary engine

The first 2 strokes of each 4-stroke cycle are performed within a chamber of one rotor in one direction and the last 2 strokes strokes of the same cycle are performed within a chamber of the other rotor in the other direction. Gas transfer between each pair of rotors is via interconnecting combustion chambers within which the gases compress and ignite. Each chamber performs the first 2 strokes of one cycle then the last 2 strokes of another. One pair of 2 chamber rotors will generate 32 strokes (8 cycles) per 360 degrees rotation. Like strokes will occur simultaneously in the diametrically opposed chambers of each rotor to provide horizontal pressure equalisation. Vertical pressure equalisation is achieved by externally interconnecting two pairs of rotors.

The parallel plane component relationship enables the sliding abutments and gas seals to bear against surfaces of consistent form and curvature, pressure equalisation ensures that all stroke generated forces are applied to the rotors (not the bearings) and the bi-directional operation produces a natural anti-torque effect which negates engine twist. The power to motion physics of this non-oscillatory rotary engine design are 100% more efficient than a piston engine.

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