Download: Offset Rotor Explained: Looking Inside the Fibonacci Offset Rotary Steam Engine (FORSE)

By Merton Pekrul


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The Fibonacci Offset Rotary Steam Engine (FORSE), also referred to as the FE-2, has ten (10) primary key components, one of which is the rotor. The rotor is offset to the housing, and in some instances, the rotor is offset to the housing in two directions. In the FE-2 engine shown in the video clip, there is a single offset. (The FE-4 incorporates a double offset rotor.)

If you picture the face of a clock, the rotor is positioned inside the engine housing so it is almost touched the engine housing at 12 o'clock. (In the double offset configuration, the rotor is also moved towards the 10 o'clock position, resulting in a double offset rotor (patent(s) pending).
The internal positioning of the rotor in relationship to the housing, coupled to the sliding vanes, creates the unique shape of the expansion chambers. The unique, patent pending seal system is able to contain an expanding vapor inside the expansion chambers. Because of the SHAPE of the expansion chambers, there is a NET 'downward' force of the vapor pushing against the vanes, resulting in significant rotational power. (In another video I will describe how to keep an expanding gas in a vapor state, without wasting fuel or heat.

The volume ratio of the chambers formed by the sliding vanes and the offset rotor follows closely the mathematical formula known as the Fibonacci ratio (1 to 1.618 . . .), On the "expansion" side of the engine (noon to 6pm), the resulting three (3) chambers, function as one, and thus provide massive leverage to the power shaft. When configured as a twin-rotor engine (TR-4), there is now a full 360 degree 'power stroke', with even greater torque at zero RPM due to the use of the twin rotors . (See