Parker-Hannifin Corporation
Turbine engine air control valve

Abstract:

A turbine engine air control valve including a valve body having a fluid flow passage and a valve member disposed in the valve body. The valve member is configured to rotate about a rotation axis between a maximum flow position and a minimum flow position. The valve member includes a vane and a floating member operatively coupled to the vane. The floating member is configured to float relative to the vane, such that when the valve member is in the minimum flow position, the floating member is spaced apart from the valve body to form an annular flow gap that provides a controlled amount of minimum fluid flow across the valve member as the fluid flows through the annular flow gap.