A rotary motor for compressible media, containing at least one impellor and at least one stator mounted between two mutually coupled and concurrently mounted bearing plates, adjusted for a mounting of double sided led out driving shaft of the impellor on which is mounted a rotary piston mounted in a chamber of the stator equipped with sealing lids, wherein the rotary piston with elliptical crosscut is mounted into symmetrically shaped triangular chamber equipped with rounded peaks, when each of them is equipped with at least one port for an entry and an exit of the compressible media, in way that a lengthwise axis (op) of the rotary piston which is identical to the driving shaft axis is due to reach of simultaneous circular movement of the stator in contra direction to the rotary piston rotating namely at parallel advance of all points of the stator along the circle with eccentricity radius (e) and is moved with regard to a lengthwise axis (os) of the chamber of the stator of the value of an eccentricity (e), whereas to one of the bearing plates is on the driving shaft mounted central cog wheel on whose perimeter are mounted three satellite cog wheels, which are firmly mounted on pegs pivoted in the bearing plate and coupled with the stator by the help of the drive pins fixed in the stator with eccentricity (e) regarding to the pegs axes.