Patent ID: 8434310

Claim:
A trim valve for modulating fuel flow in a gas turbine engine comprising: a) a valve housing having an inlet section and an outlet section and defining a longitudinal axis; b) a valve shaft aligned with the longitudinal axis and mounted to the valve housing to be stationary with respect thereto, the valve shaft including an internal flow passage in fluid communication with the outlet section of the valve housing; c) a valve rotor having a valve rotor housing, a first pair of radially opposed wings extending from the valve rotor housing and a second pair of radially opposed rotor wings extending from the housing aft of the first pair of radially opposed wings, the valve rotor disposed inboard of the valve housing and outboard of the valve shaft for modulating fuel flow through the valve housing, wherein the valve rotor is mounted for rotational movement within the valve housing between a fully open position in which a flow path is defined between the inlet and outlet sections of the valve housing, and a reduced flow position in which the valve rotor at least partially blocks the flow path; and d) an electromagnet actuator operatively connected to the valve housing to actuate the valve rotor between the fully open and reduced flow positions to trim flow through the flow path.