Quasiturbine

A geometrical indetermination (not uniquely defined) of the Quasiturbine confinement stator shape [3] allows for a variety of profiles (including asymetrical) and design characteristics.

Since the rotational force within the Quasiturbine comes from the pressure on the entire pivoting-blade, and not on an extensible vanes which impose a geometric back flow at chamber overlaps, the high eccentricity QT stators increases considerably the stroke displacement volumes which can exceed the whole engine volume per rotation.

[4] Patents for the Quasiturbine (in the most general AC concept with carriages) [5][6] [clarification needed] are held by the family of Gilles Saint-Hilaire[7] of Québec.

If it was attempted no results were ever released, and development work on this design was no priority, in spite of Quasiturbine internal combustion test.

[10] The two-port design with carriages was proposed to make possible a new and superior mode of combustion, termed photo-detonation by the Quasiturbine inventors.

This design uses redesigned blades, longer than those for a similar sized housing of the first type owing to the absence of the carriages, and lacking the distinctive crown contour.

In photo-detonation mode, the fuel/air charge auto-ignites with a short, powerful pressure pulse in the Quasiturbine's combustion chamber.

Prof. J. Ignacio Martínez-Artajo (1907-1984) from Universidad Pontificia Comillas (Madrid, Spain) made sketches of an adaptative rotary compressor in the mid seventies, which led to the construction of a railway model missing of proper rotor dynamic solutions.

Small pneumatic and steam units are available from the patent holders for sale or hire for research, academic training and industrial demonstration, as is a book (largely in French) describing the concepts and development of the design.