Rotary vane pump principle (System Willimczik)
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In contrast to the classical rotary vane pump, where several loose vanes rotate inside a cylinder guided in radial slots, in the rotary displacement principle according to the German Physicist Wolfhart Willimczik rotate one single vane (3) axial on the flat end surface (5) of a stationary ring shaped piston (1). Centrifugal forces are eliminated. The single vane divides the room over the piston in two halves. The vane is embedded in the middle of a rotating cylinder (2), which is also ring shaped to fit to the piston. The inner top surface of the cylinder is cone shaped. A stationary seal between pressure and suction chamber is build by the straight line of the surface of a shallow cone frustum with the same inclination angle as the slanted end surface of the stationary piston. The in- and outlet respectively (4) lie in front and behind this location in the stationary piston.
