Abstract: A sliding valve assembly includes a valve body having a fluid conducting port adjacent to a fluid impervious surface. The actuator allows fluid to travel through the valve assembly and into a fluid blocking position where the fluid impervious surface obstructs the fluid from traveling through the valve assembly. First and second sealing assemblies include a primary seal ring, a secondary seal ring around the primary seal ring, and a spring forcing the primary seal ring against a sealing surface. As pressure in the system increases, this pressure is delivered to the sealing assemblies to force them against the sealing surfaces to enhance the sealing relationship. Cams and cam followers affixed to the valve body overcome the frictional forces of the sealing system and the valve body and valve housing to increase the efficiency of the valve assembly and the system in which the valve assembly is used.

Abstract: A sliding valve assembly includes a valve body having a fluid conducting port adjacent to a fluid impervious surface. The actuator allows fluid to travel through the valve assembly and into a fluid blocking position where the fluid impervious surface obstructs the fluid from traveling through the valve assembly. First and second sealing assemblies include a primary seal ring, a secondary seal ring around the primary seal ring, and a spring forcing the primary seal ring against a sealing surface. As pressure in the system increases, this pressure is delivered to the sealing assemblies to force them against the sealing surfaces to enhance the sealing relationship. Cams and cam followers affixed to the valve body overcome the frictional forces of the sealing system and the valve body and valve housing to increase the efficiency of the valve assembly and the system in which the valve assembly is used.

Abstract: The present invention is directed to a semi-rotating valve assembly that may be used in conjunction with an internal combustion engine. The semi-rotating valve of the present invention comprises a valve shaft disposed substantially within a valve housing, wherein the valve shaft is configured to rotate less than 360 degrees with respect to the valve housing to selectively open and close the valve. The reduced rotation of the valve shaft reduces friction, heat and wear. An interlocking sealing mechanism that may be used in conjunction with the semi-rotating valve of the present invention, along with means for cooling the valve, also are disclosed. Further, means for varying an aperture size associated with the valve also are provided, wherein the means for varying is configured to compensate for differences in engine speed to further improve efficiency and reduce fuel consumption and emissions.

Abstract: The present invention is directed to a semi-rotating valve assembly that may be used in conjunction with an internal combustion engine. The semi-rotating valve of the present invention comprises a valve shaft disposed substantially within a valve housing, wherein the valve shaft is configured to rotate less than 360 degrees with respect to the valve housing to selectively open and close the valve. The reduced rotation of the valve shaft reduces friction, heat and wear. A sealing mechanism that may be used in conjunction with the semi-rotating valve of the present invention, along with means for cooling the valve, also are disclosed. Further, means for varying an aperture size associated with the valve also are provided, wherein the means for varying is configured to compensate for differences in engine speed to further improve efficiency and reduce fuel consumption and emissions.

Abstract: The present invention is directed to a semi-rotating valve assembly that may be used in conjunction with an internal combustion engine. The semi-rotating valve of the present invention comprises a valve shaft disposed substantially within a valve housing, wherein the valve shaft is configured to rotate less than 360 degrees with respect to the valve housing to selectively open and close the valve. The reduced rotation of the valve shaft reduces friction, heat and wear. An interlocking sealing mechanism that may be used in conjunction with the semi-rotating valve of the present invention, along with means for cooling the valve, also are disclosed. Further, means for varying an aperture size associated with the valve also are provided, wherein the means for varying is configured to compensate for differences in engine speed to further improve efficiency and reduce fuel consumption and emissions.