Honeywell International Inc.

William B Schuster

Donald G Godfrey

Shawn Alstad

Mark McNair

Nick A Nolcheff

Morris G Anderson

John A Gunaraj

Mahmoud Mansour

John Taylor Pearson

David Richard Hanson

Shailesh Kumar

Jyotichandra Jingade

Michael Barton

John Gunaraj

Karen B Kontos

Donald S Weir

Mohammed Qizar

Swarna Sinha Srinath

Mark Mcnair

A gas turbine engine includes a rotatable component, and an engine casing disposed about the rotatable component. The engine casing includes a casing treatment having a plurality of grooves and a plurality of acoustic chambers. Each of the plurality of grooves is defined in the engine casing with a groove depth, and each of the plurality of acoustic chambers has an acoustic chamber depth based on the groove depth. Two of the plurality of grooves are associated with one of the plurality of acoustic chambers, one of the plurality of grooves is associated with a second one of the plurality of acoustic chambers, and the one of the plurality of acoustic chambers has an acoustic configuration that is different than the second one of the plurality of acoustic chambers.

Acoustic engine casing for gas turbine engine

A bleed valve for a gas turbine engine includes a housing that defines an inlet upstream from an outlet. The bleed valve includes a poppet movable relative to the housing between a first position, in which the poppet closes the inlet, and a second position, in which the inlet is open and configured to receive a fluid flow. The housing defines a tortuous path for the fluid flow from the inlet to the outlet configured to reduce a pressure of the fluid flow from the inlet to the outlet within the housing. The tortuous path is defined by a plurality of rings positioned about the poppet, with each ring of the plurality of rings spaced apart from an adjacent ring of the plurality of rings between the inlet and the outlet to define the tortuous path.

Bleed valve with reduced noise

An alternating clockwise and counterclockwise helicoid cell structure for use in acoustic panels. The cell structure geometry may be easily replicated and tiled using additive manufacturing. The cell structure has at least an outer cavity and an inner cavity. The cavities are coaxial, share the same height, same entrance side, and same cell structure floor. The inner cavity includes a number of equal-volume inner chambers rotated uniformly in a first direction around the shared central axis; and the outer cavity includes a second number of equal-volume outer chambers rotated uniformly in an opposite direction to the first direction around the shared central axis. In various embodiments, one or more perforated baffles may extend, internally, across a chamber, perpendicular to direction of sound waves at the location of the perforated baffle. In various embodiments, one or more port openings from the outer cavity to the inner cavity may be present.

Alternating helicoid cell structure and methods of producing the same

An enhanced acoustic cell for use in acoustic panels is provided. The provided enhanced acoustic cell has a parabolic-shaped cell floor and a receiving object suspended at its focal point. Components of the enhanced acoustic cell may be easily replicated and installed into a face sheet comprising an array of a plurality of interconnected acoustic cells. The provided acoustic cell, and arrays thereof, may be produced using an additive manufacturing (AM) technology.

Enhanced acoustic cell and enhanced acoustic panel, and methods of producing the same

A sound attenuation apparatus includes a body and a stacked cavity structure. The structure includes a structure inlet formed in the top surface of the body; a passage extending from the structure inlet into the interior of the body to a base surface within the body; a first cavity with a first cavity inlet fluidly coupled to the passage and being formed by a first arm, a first side wall within the interior of the body, and the base surface; and a second cavity with a second cavity inlet fluidly coupled to the passage and being formed by a second arm, the first side wall, and the first arm. Each of the first and second arms extends from the first side wall and includes at least two arm segments oriented at different angles relative to the first side wall longitudinal axis.

Sound attenuation apparatus and methods

A nonlinearly stacked low noise turbofan stator vane having a characteristic curve that is characterized by a nonlinear sweep and a nonlinear lean is provided. The stator is in an axial fan or compressor turbomachinery stage that is comprised of a collection of vanes whose highly three-dimensional shape is selected to reduce rotor-stator and rotor-strut interaction noise while maintaining the aerodynamic and mechanical performance of the vane. The nonlinearly stacked low noise turbofan stator vane reduces noise associated with the fan stage of turbomachinery to improve environmental compatibility

Nonlinearly stacked low noise turbofan stator

Growing community of inventors

Phoenix, AZ, United States of America

William B Schuster