Abstract: The invention refers to mechanical engineering and can be used for reducing the level of vibrations and noise caused by pulsations of the fluid flow generated by a rotor sliding-vane machine. A method of generating a surgeless fluid flow by rotating the rotor of the rotor sliding-vane machine, separating the fluid in the transfer cavities from the inlet cavity by the vanes, transference the transfer cavities to the outlet cavity of the machine, merging them with the outlet cavity followed by the fluid displacement characterized by that the volumes of the transfer cavities and fluid pressure in them are varied in the process of the transference so that the mentioned pressures are substantially equalized with the outlet pressure by the moment when the transfer cavities are merged with the outlet cavity. A rotor sliding-vane machine with a working chamber in the annular groove on the face of the rotor comprising vanes in the vane chambers and force chambers of variable volume.

Abstract: The invention refers to mechanical engineering and can be used as a high pressure rotor sliding-vane machine with surgeless delivery capable to work both as a pump and as a hydro motor. The objective of the present invention is to overcome the origins generating the high dissipative losses of power and to increase the reliability of machine by creating the means of hydrostatic balancing of the rotor and sliding sealing. Said means are resistant to the wear of the machine elements and to the working fluid contamination and are compatible with the means of overcoming cavitation in vane chambers.