Patent ID: 7080656

Claim:
A variable vent valve diffuser comprising: a conduit having at least one aperture; an adjustable plug residing within the conduit and adapted to move relative to the at least one aperture based on a sensed parameter of operation wherein the aperture is a diffuser element forming part of the conduit, the diffuser element being variably exposed to an interior of the conduit dependent upon the position of the plug, the plug being slidably adjusted in response to first and second opposing forces acting on the plug, the first force acting on a first end of the plug and being generated by fluid pressure within the conduit, the second force acting on a second end of the plug and being generated by a spring; and a control valve in fluid communication with the conduit, the control valve adapted to monitor fluid pressure within the conduit, and generate a third force adapted to act on the plug wherein the third force acts on the second end of the plug.