Core compartment valve cooling valve scheduling
AssigneeGeneral Electric Company
InventorsDaniel J. Laborie, Michael Mc Nulty
Life of this patent
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Abstract
A system is provided for cooling the undercowl environment of a gas turbine engine having a high pressure compressor and a core gas stream. An electronically controlled compartment cooling valve is controlled as a function of corrected fan speed, altitude, ambient conditions, extreme hot day temperatures and the aircraft environmental control system. A cooling manifold distributes cooling air in the undercowl environment. A regulator, such as an on-off control valve, modulates the amount of undercowl cooling flows as a function of any of a variety of conditions.
Claims6
A system for cooling the undercowl environment of a gas turbine engine having a high pressure compressor and a core gas stream, the cooling system comprising:
- an electronically controlled compartment cooling valve, the valve being controlled as a function of predetermined parameters comprising corrected fan speed, altitude, ambient conditions, a predetermined temperature and an aircraft environmental control system operating state;
- a control unit connected to the electronically controlled compartment cooling valve for receiving as inputs the predetermined parameters to control the electronically controlled compartment cooling valve;
- and
- a cooling manifold for cooling air distribution in the electronically controlled compartment cooling valve.
Dependencies are inferred from the claim text.