Rotary engine

The Quasiturbine (Qurbine in short) uses a rotor arrangement peripherally supported by four rolling carriages, the carriages taking the pivoting blade pressure-load, of the blades forming the rotor, and transferring the load to theopposite contoured housing wall. The present invention discloses a central, annular, rotor support for the geometry defined by the pivoting blades and associated wheel bearings, while still maintaining the important center-free engine characteristic. The pressure-load on each pivoting blade is taken either by its own set of wheel-bearings rolling on annular tracks attached to the central area of lateral side covers forming part of the casing, or is cancelled out in symmetrically pressurized fluid energy converter mode through the central holding action of annular power sleeves. This central, annular, rotor support could generally apply to all the family of Quasiturbine rotor arrangements and particularly to the limit case here considered, where the previous carriage design is replaced by a cylindrical pivoting blade joint as developed in the present patent, and for which an efficient solution of the five-body rotary engine sealing problem is given.