Rotary Roller Motor

The Rotary Roller Motor (RRM) is a four cycle rotary internal combustion engine that uniquely overcomes many of the drawbacks of other rotary type engines, by having the Rotor ‘roll’ around the inside of the engine block, rather than scraping against it. This is accomplished with a two part rotor. The inner part of the rotor is composed of a Rotor Shaft (RS, item 12) with an Offset Circular Lobe (OCL, item 11) rigidly attached to it, or combining both features as a single machined part. The Outer Rotor (OR, item 9) fits symmetrically around the OCL, with an Inter Rotor Bearings (IRB, item 10) between the two to allow free rotation around the OCL. The four cycles are separated by two barriers;

• the Compression/Power Barrier (CPB, item 13), and the Exhaust/Intake Barrier (EIB, item 6). Compression is controlled by two other barriers, the Non-reversing Compression Barrier (NCB, item 3) and the Compression Hold Barrier (CHB, item 14), on either side of the Combustion Chamber (CC, item 2).