Patent ID: 6810664
Filing Date: 2004-11-02
Classification: F16D,Y10T

Abstract:
A slotted spool valve comprising:a. a cylindrical liner, the cylindrical liner having an exterior surface, an interior surface, a first end, and a second end, the exterior surface being interrupted by an O-ring groove, a first annular channel having a plurality of rectangular-liner bypass ports extending therethrough to the interior surface, and a second annular channel having a plurality of liner supply ports extending therethrough to the interior surface; b. a cylindrical spool, the cylindrical spool being accommodated and contained by the cylindrical liner, and having a spool exterior, a spool interior, a spool first end and a spool second end, the spool exterior being interrupted by a plurality of rectangular-shaped spool bypass ports located around and about the spool and extending therethrough to the spool interior and communicating with the rectangular-shaped liner bypass ports, an annular channel having one or more spool supply ports extending therethrough to the spool interior and communicating with the liner supply ports, and a plurality of grooves encompassing the spool second end, the spool first end being closed, and the spool second and being sealed by a plug, the plug accommodating and attaching to the actuation shaft, action of the actuation shaft resulting in angular rotation of the spool toward greater or lesser alignment of the rectangular-shaped spool bypass ports and the rectangular-shaped liner bypass ports.