Patent ID: 7588051
Filing Date: 2009-09-15
Classification: F16K,Y10T

Abstract:
1. A motor driven rotary valve device utilizing a fluid medium supplied under pressure from a pump to translate the frequency of rotation of a motor shaft carried by and driven by said motor into the rectilinear frequency of a piston contained in a cylinder, comprising: (a) a base plate carrying said motor; (b) valve means carried by said base plate for controlling and distributing flow of said fluid medium directly in response to said frequency of rotation of said motor shaft where said valve means comprises a cavitated disk having an upper surface, a lower surface, and an axis of rotation carried by said motor shaft in fixed rotational relationship therewith, said cavitated disk further having an open first void cavity region disposed in said lower surface, said open first void cavity region having the shape of a sector of a circle where said axis of rotation and the center of said sector of a circle are substantially collinear; (c) manifold means for distributing said fluid medium to said valve means from said pump and for distributing said fluid medium to said cylinder to reciprocate said piston at said rectilinear frequency, where said manifold means comprises a distribution port in continuous fluid communication with said pump and said open first void cavity region, and where said distribution port is surrounded by said open first void cavity region and positioned adjacent said center of said sector of a circle to permit continuous flow of said fluid medium into said sector of a circle during rotation of said cavitated disk.