• Its History
• The PCT Patent
• IP World Coverage
• Its Opportunities

• Its Features
• Its Applications

Above one can see the single cylinder, 4 stroke 150 cc demonstrator animation.

Being a 4 stroke engine, the fresh air and fuel mixture is brought in through the intake port of the rotary valve on the top of the cylinder by the suction action of the piston on its way down the cylinder toward the gears. Then the piston compresses the volume on its way back toward the top of the cylinder. When the piston reaches its top dead center, the compressed volume is ignited and the hot expanding gas pushes the piston down again, providing work. Then the piston runs back again toward the top of the cylinder, this time getting rid of the burnt gas through the exhaust port of the rotary valve. This 4 stroke cycle is repeated many times per minute.

The reciprocating action is transposed into a rotary action by the use of a planetary gear set-up.

Since there are two small gears having a 2/1 size ratio with the large gear, this provides a full rotation of the whole assembly per 4 strokes. The cylinder and the piston rotates in tandem with the connecting rods, cams, small gears, bearings, central holder ( not shown ) and finally the shaft.

The kinetic energy of the whole rotating assembly acts as a flywheel and encourages the reciprocating movement. The rotating cylinder's fins act as an air pumping configuration providing sufficient dynamic air cooling to the engine. The rotation of the cylinder also provide for its porthole to align, in a flat rotary valve arrangement, once for the intake port and then once for the exhaust port per revolution.

One can see beside the animation of one of the best mechanical and totally innovative feature of the Rotary Piston ICE. Since it has two connecting rods and cam counterweights acting in opposite mode, the lateral friction of the piston on the sidewall of the cylinder is reduced to its bare minimum. In ordinary ICE, this side load represents the greatest of all losses imputable to mechanical frictions and consequent heat built-up. This unique feature also ideally eliminates the intense vibrations usually found in all legacy engines.

Also since the work is splited in half between the two small gears of the planetary arrangement, it reduces the amount of work each has to accomplish to transfer the reciprocating movement of the piston into the rotary motion of the shaft, reducing their respective load and extending the useful life of the bearings.

So there it is, a simple and elegant mechanical construction, where all of the parts have several roles.
The optimum design of the internal combustion engine.

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