The Quasiturbine Pistonless Rotary Engine


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The Quasiturbine is a pistonless Rotary Machine using a deformable rotor whose blades (sides) are hinged at the vertices.The volume enclosed between the blades of the rotor and the stator casing provides compression and expansion in a fashion similar to the familiar Wankel engine.

source/image: Gilles Saint-Hilaire

But the hinging at the edges allows higher compression ratio and different time dependencies, while suppressing the Wankel rotor dead time, and this without the complex rotor synchronization gears.

Quasiturbine Hand Rotation Test – 5 litres Expander up to 12 kW under 4 bar (60 psi). – (Prior lateral seals machining) – Noise due to fresh internal rotor grinding vanishes in few hours for still less friction. Try to rotate the same way a 5 liter displacement piston engine sparkplugs removed!

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The volume enclosed between the sides of the rotor and the rotor casing provide compression and expansion in a fashion similar to the more familiar Wankel engine, but the hinging at the edges allows the volume ratio to increase. Unlike vane pumps, in which vane extension is generally important and against which the pressure acts to generate the rotation, the Quasiturbine contour seals have a minimal extension and the rotation does not result from pressure against these seals./wikipedia

Only 2 bar – 30 psi Quasiturbine Zero-Vibration Chainsaw. QT.6LSC Air Motor. Power goes up with pressure.This chainsaw is shown only as a sample of 1.5 kW QT engine application.The chainsaw is not available for sale at this time.

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