Patent ID: 7021264
Filing Date: 2006-04-04
Classification: F02D

Abstract:
1. A variable valve, comprising: a valve body comprising at least one conduit defined therethrough; a first cylinder having a first aperture corresponding to each of the at least one conduit, wherein the first cylinder is rotatable within the valve body between a first position and a second position; and a second cylinder directly coupled with the first cylinder having a second aperture corresponding to each of the at least one conduit, wherein the second cylinder is rotatable within the valve body between the first position and the second position; such that the first aperture and the second aperture form a single variable sized opening corresponding to each of the at least one conduit when the first cylinder and the second cylinder move from the first position toward the second position; wherein each of the single variable sized openings define a cross section by which a passage through the respective conduit is unrestricted; wherein flow through each of the single variable sized openings is maximized when the first cylinder and the second cylinder are in the second position; and wherein each of the single variable sized openings are in a closed position when the first cylinder and the second cylinder are in the first position.