Rotary compressor and method of operating a rotary compressor

A rotary compressor (1) for compressing gaseous media, having

• two twisted rotors (10, 20) surrounded by a housing (2), each with at least three vanes or splines (12, 14, 16, 22, 24, 26) for forming a number of delivery chambers (4) between the vanes or splines and the internal wall (2′) of the housing (2), and
• at least partially axial, one-sided inflow of the gaseous mediums into a relevant delivery chamber (4) flowed through in the longitudinal direction of the delivery chamber and an area of enlarged volume (V) formed by delivery chambers,
• wherein the geometric influencing variables and the speed of the rotary compressor (1), taking account of the temperature and type of the gaseous medium, are so adjusted to one another and are such that rapid separation of the relevant delivery chamber (4) from the area of enlarged volume (V) takes place to generate a gasdynamic pulse, and
• a closing time (tS) from separation of the relevant delivery chamber (4) from the area of enlarged volume (V) to closure of the relevant delivery chamber (4) on the inflow side (4) is such that the filling level of the relevant delivery chamber (4) is increased by pulse charging.