Quasiturbine Engine

from http://auto.howstuffworks.com/quasiturbine.html

An intense evaluation,by Saint-Hilaire team, of all engine concepts to note advantages, disadvantages and opportunities for improvement resulted in unique engine solution - Quasiturbine Engine.

Like rotary engines, the quasiturbine engine is based on a rotor-and-housing design. But instead of three blades, the quasiturbine rotor has four elements chained together, with combustion chambers located between each element and the walls of the housing.

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