Variable bleed valve assemblies
AssigneeGeneral Electric Company
InventorsNageswar Rao Ganji, Hiranya Kumar Nath, Vishnu Vardhan Venkata Tatiparthi, Ravindra Shankar Ganiger, Jeffrey D. Carnes, Trevor H. Wood
Life of this patent
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Abstract
Example variable bleed valve assemblies for a gas turbine engine are disclosed herein. An example apparatus disclosed herein includes a variable bleed valve port extending radially outward from a main flow path of a gas turbine engine, a door positioned at an exit of the variable bleed valve port, the door including perforations, a damper coupled to the door, the damper including a resonator adjacent to the perforations of the door, the resonator defining an internal volume based on a resonant frequency of the variable bleed valve port.
Claims20
An apparatus comprising:
- a variable bleed valve port extending radially outward from a main flow path of a gas turbine engine;
- a door positioned at an exit of the variable bleed valve port, the door including perforations;
- and
- a damper coupled to the door, the damper including:
- an acoustic liner to absorb acoustic energy;
- and
- an interior partition defining a first resonator and a second resonator, the first resonator defining a first internal volume based on a first resonant frequency of the variable bleed valve port, the second resonator defining a second internal volume based on a second resonant frequency of the variable bleed valve port.
A gas turbine engine comprising:
- a compressor including a variable bleed valve port extending radially outward from a main flow path of the gas turbine engine;
- and
- a variable bleed valve assembly within the variable bleed valve port including:
- a door positioned at an exit of the variable bleed valve port, the door including perforations;
- and
- a damper coupled to the door, the damper including:
- an acoustic liner to absorb acoustic energy;
- and
- an interior partition defining a first resonator and a second resonator, the first resonator defining a first internal volume based on a first resonant frequency of the variable bleed valve port, the second resonator defining a second internal volume based on a second resonant frequency of the variable bleed valve port.
Dependencies are inferred from the claim text.