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INTRODUCTION

Quasi turbine is a zero vibration continuous combustion rotary engine having four faces articulated rotor with a free and accessible centre rotating without vibration nor dead time and producing a strong torque at low rpm under a variety of modes and fuels. The quasi turbine is also an optimization theory for extremely compact efficient engine concept.

It is a new engine concept from Canada offers a design similar to that of rotary engines but with the advantages of a gas turbine-all within the confines of a chamber based on the shape of a Saint Hilaire skating rink profile. Each Quasi turbine device is at the cross road of three modern engines: inspired by the turbines: it perfects the piston, and improves on the Wankel. The Quasi turbine results from a research initiated in 1993 aimed at unifying the compression and power turbine into one entity. This invention is a new hybrid engine concept, midway between the piston and the turbine engine which requires relatively few components such as stator with covers, rotating blades, rocking carriages, wheels, and joints. Quasiturbine is also an environmental friendly engine, which provides an engine concept free from atmospheric gas pollution, noise pollution, thermal pollution etc. In this engine efficiency stays constant and optimum no matter the power of the unit.

Inventors: - Francoise, Gilles, Roxan

OBJECTIVES OF QUASITURBINE

Object of this invention is to provide new engine concept unifying the compressor and power turbine into one entity that is a conventional gas turbine engine. Another object of this invention is to provide a low noise, perfectly balanced, zero vibration, low r.p.m engine, giving less time to compression and expansion stroke and allowing more time and volume to the intake combustion stroke.

A further object of this invention is to provide a fast accelerating, zero dead time and to provide an engine almost universal to energy sources, which can run efficiently on pneumatic, steam, hydraulic, liquid and gas fuel internal combustion.

Another object is to provide an engine, which has a short pressure peak, cold intake area characteristics, so that it is suitable for photo detonation mode pure hydrogen fuel combustion.

Another object is to provide a high weight and volume density engine, without need of any valve, check valve or obstruction and within neither a crankshaft nor a flywheel.

CONSTRUCTIONAL DETAILS

The invention is an assembly of four carriages supporting the pivots of a four element, variable shape rotor, which is confined within a chamber (internal housing counter wall-stator) based on the shape of a Saint Hilaire skating rink profile. This profile offers the rotary components of the engine a bigger, more uniform radial path, enabling maximum torque to be reached more efficiently than a normal combustion. Two lateral plane covers close the engine end. The rotor is composed of four pivoting blades playing a similar role as the piston or turbine blades. Each pivots sit into one of the four rocking carriages. Each carriage is free to rotate around the same pivot in such a way as to be continuously and precisely in contact with housing counter. A central shaft is not needed for the engine to operate. It can be driven through a set of coupling arms attached to the blades by means of traction slots and through a set of arm braces, the ends of which are linked to central shaft. The central shaft unit can be easily removed through the back cover central hold with out dismantling the engine

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