Patent ID: 9322274
Filing Date: 2016-04-26
CPC Classification: F01B,F01C,F02B

Claim Text:
1. A rotary-piston internal-combustion engine comprising: a stationary case formed with two intake ports and two exhaust ports and with a plurality of cavities; a block rotatable about an axis in the case and formed with first, second, and third radially extending cylinders; respective first, second, and third pistons each radially reciprocal through a displacement of the piston in the cylinders, the cylinders each having a diameter that is 2 to 3.5 times greater than the displacement of the pistons; respective seals and springs in the cavities between the rotating block and the stationary case; a crankshaft rotatable in the case at the axis and having a single crank pin; respective first, second, and third connecting rods between the crank pin of the crankshaft and the pistons and each having a forked big-eye end, the first and second connecting rods being asymmetrical and fitting into each other and the third connecting rod being symmetrical; gearing between the crankshaft and the rotary block for three times higher revolutions of the crankshaft in a opposite direction that of the rotating block; at least two spark plugs on opposite sides of the stationary case; and one sleeve on which all of the connecting rods are journaled and that is rotationally mounted on the crank pin.