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Site:Will Green:Piston Driven Rotary Motor

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The System

In a fluid system, this rotary motor is 14" diameter, 8 cylinders, has 2" dia. pistons, with a 7" dia. crank and 0.5" displacement, there are 3 active cylinders. In this example we are using the constants 450-psi cylinder pressure, rotating at 900 rpm. A hydraulic fluid pump with an electric motor drives the above system.

A pump and motor were chosen to give me the ability, to control both the flow and pressure on the input side. Thereby more accurately calculate, the torque and speed on the output side.

This technology is better than existing technologies for the following two reasons 1) Greater leverage within a more confined space. 2) Reduced mass used in linear to rotary motion translation.

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