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RVCR Mechanism Animations and Comparison

Conventional ‘Slider crank Mechanism’

It constitutes of a “cylindrical piston” closely fitting inside a cylinder/barrel called ‘Liner’, such that it can slide inside it (like a syringe used in hospitals for drawing blood samples). A ‘Cylinder Head’ is fit on the top end of the liner, and has valves that open for air to be sucked in when the piston is dragged down the liner, (like blood is sucked inside a syringe through the needle, when the plunger is dragged out)

Once sucked the air is trapped by closing the valve and cannot escape. It is then compressed by pushing the piston upward towards the cylinder head, (like pushing the plunger to inject medicine). The air gets hot when compressed and fuel is injected in it to burn, causing rapid rise in pressure that forcefully pushes the piston back. This forceful push is used to crank a shaft into rotation by using a connecting rod fit to the piston.

Rotary Two Vane RVCR Mechanism



The piston is a bent cylinder called ‘vane piston’ and is placed inside the doughnut where it can slide and rotate inside it. There are two such ‘vane-pistons’ inside the hollow doughnut and if one ‘vane piston’ is kept stationary and other is rotated, air is sucked in the increasing gap between ‘Vane pistons’ and at the same time air is compressed on the other side of the moving piston where the gap between it and the stationary piston starts to reduce.

The two ‘vane pistons’ are rotated in a particular fashion, where initially the 1st ‘vane piston’ is held stationary and the 2nd one is rotated till it reaches the backward side of the 1st Piston. Hereafter both vanes are rotated simultaneously and when the 2nd ‘vane piston’ reaches the position where the 1st one was previously held stationary, it is stopped and the 1st one continues to rotate till it reaches the back of 2nd piston which is now held stationary.

The sequence of motion of the 2 ‘vane Pistons’ is the core characteristic of the invention and RVCR technology.

Comparison of Mechanisms on Single Shaft

RVCR Engine Animation