Patent ID: 6029617
Filing Date: 2000-02-29
Classification: F01L

Abstract:
A rotary valve assembly comprisinga fluid conduit;a valve member having an open window;means for rotatably mounting the valve member on an axis with respect to the conduit so that when the valve member is rotated about said axis, the plate occludes the conduit except when the window is opposite the conduit;a control member having a through-hole therein;means for rotatably mounting the control member on said axis so that it is in face-to-face contact with the valve member and rotatable with the valve member through an angle greater than 360.degree., andmeans for adjusting the phase of the control member relative to the valve member while both members are rotating, between a first angular position wherein the control member may or may not occlude at least part of the window when the valve member is rotated to position the window opposite the conduit and a second angular position wherein the valve member occludes a different part of the window when the valve member is rotated to position the window opposite the conduit.