One-stroke internal combustion engine

A rotary one-stroke internal combustion engine having a power stroke greater than 180° and less than 360°,the engine comprising:

• a cylindrical housing;
• and
• a center plate separating the housing into first and second compartments of equal volume,
• wherein each compartment is bounded by a respective first and second end plate,
• wherein the first compartment includes the first end plate and a first piston for greater than 180° and less than 360° oscillating movement within the first compartment bounded by a first partition,
• wherein the first piston is mounted on a central shaft, and the first piston and the first partition cooperate to divide the first compartment into two chambers,
• wherein the second compartment includes the second end plate and a second piston for greater than 180° and less than 360° oscillating movement within the second compartment bounded by a second partition,
• wherein the second piston is mounted on the central shaft, and the second piston and the second partition cooperate to divide the second compartment into two chambers,
• wherein the first and second partitions are each integral with an internal surface of the cylindrical housing and the first and second partitions are each adjacent to one another and opposite to one another in the respective first and second compartments and each disposed lengthwise within the cylindrical housing,
• wherein the first and second partitions each has a pie shape with respective flat sides facing one of the first and second pistons, and the flat sides are each orthogonal to the internal sides of the cylindrical housing, and
• wherein the central shaft for reciprocating movement with the first and second pistons is positioned lengthwise at the center of the cylindrical housing.