Patent ID: 9483061
Filing Date: 2016-11-01
CPC Classification: B64D,F02C,F16K,G05D,Y10T

Claim Text:
1. A bleed air control valve comprising: a closure disk rotatable within a flow control duct; a pneumatic actuator operable to drive rotation of the closure disk, the pneumatic actuator including a first piston disposed between a first pressure chamber and a second pressure chamber, and a second piston disposed between the second pressure chamber and a third pressure chamber; a connecting rod linking the first piston to the second piston; a shaft including a first end connected to the connecting rod and a second end connected to the closure disk, the shaft operable to translate linear movement of the first and second piston into rotation of the closure disk; an actuator fluid supply passage providing communication between an inlet side of the flow control duct and at least one of the first pressure chamber, the second pressure chamber, and the third pressure chamber; an integral filter and pressure regulator unit disposed in line with the actuator fluid supply passage, the unit having a cylindrical regulator cavity in selective communication with a cylindrical vent cavity, with filter media secured to the pressure regulator unit and disposed across at least one of a regulator inlet orifice and a regulator outlet orifice; and a regulator nozzle disposed axially between the vent cavity and the regulator cavity, the regulator nozzle having at least one regulator port providing selective communication between the vent cavity and the regulator cavity; wherein the regulator inlet orifice or the regulator outlet orifice includes at least one opening formed through a portion of at least one cylindrical wall defining the regulator cavity.