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VGT Technologies Inc. was established to develop and commercialize an exciting and truly revolutionary new engine concept called the Variable Geometry Toroidal (VGT) Engine or the RoundEngine.

A “toroidal” engine is one in which the power pistons rotate in a perfectly circular chamber with the drive shaft at its geometric centre.

Variable geometry refers to the unique shapes in the engine design, notably the pistons and timing disc cutout.

Rev. June 23, 2010 /tw



RoundEngine benefits