Abstract: An assembly of rotatory engines and the like, for counteracting the effects produced by expansion in engines of this kind, in which at least one of the shaft ends, through a bearing and adjustment nut, is mounted on a cross plate, the shape of said plate being the same as that of the cross section of the stator, said plate being provided with an expansion groove (joint). This plate is to be placed between the rotor and the engine cover or, alternatively, it replaces the cover.

Abstract: The invention relates to a fluid pump having movable blades which are housed inside the rotor thereof, the blades having at portions facing the stator a concavity into which a semicircular section shoe seats and swings, the diameter of which is larger than the blade thickness, the shoes being fixed to each of the blades by means of the ends of a flexible rod, such rod embracing the blade sides and fitting into its rear portion, this assembly being housed into a substantially elliptical vertical section stator.