Radial compressor with leading edge air injection
AssigneeHamilton Sundstrand Corporation
InventorsOusmane Gaye, Viktor Kilchyk
Life of this patent
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Abstract
A compressor includes a housing and a mixed-flow rotor mounted within the housing. The mixed-flow rotor includes a blade and a rotor hub with an interior flow passage. The blade includes an internal channel between a pressure surface and a suction surface of the blade. The internal channel extends radially within the blade and is in fluidic communication with the interior flow passage. The blade also includes a plurality of air outlets formed on the blade proximate a leading edge of the blade. The plurality of air outlets extends into the blade to fluidically connect with the internal channel.
Claims19
A compressor of an air cycle machine, wherein the compressor comprises:
- a housing forming an inlet of the air cycle machine;
- and
- a centrifugal rotor mounted within the housing, the centrifugal rotor comprising:
- a rotor hub comprising an interior flow passage;
- a blade comprising a leading edge extending in a radial direction, a trailing edge extending in an axial direction, a pressure surface extending from the leading edge to the trailing edge, and a suction surface extending from the leading edge to the trailing edge opposite the pressure surface;
- an internal channel inside of the blade between the pressure surface and the suction surface and extending radially within the blade and in fluidic communication with the interior flow passage;
- and
- a plurality of air outlets formed on the blade proximate the leading edge and extending into the blade to fluidically connect with the internal channel,
- wherein at least one air outlet of the plurality of air outlets is on the leading edge.
An impeller of an air cycle machine, the impeller comprising:
- a rotor hub comprising an interior flow passage;
- a blade comprising a leading edge extending in a radial direction, a trailing edge extending in an axial direction, a pressure surface extending from the leading edge to the trailing edge, and a suction surface extending from the leading edge to the trailing edge opposite the pressure surface;
- an internal channel inside of the blade between the pressure surface and the suction surface and extending radially within the blade;
- and
- a plurality of air outlets formed on the blade proximate the leading edge and extending into the blade and fluidically connecting with the internal channel,
- wherein at least one air outlet of the plurality of air outlets is on the leading edge.
A method of manufacturing a mixed-flow rotor of an air cycle machine, the method comprising:
- additively manufacturing a rotor, the rotor comprising:
- a rotor hub comprising an interior flow passage;
- a blade comprising a leading edge extending in a radial direction, a trailing edge extending in an axial direction, a pressure surface extending from the leading edge to the trailing edge, and a suction surface extending from the leading edge to the trailing edge opposite the pressure surface;
- an internal channel inside the blade between the pressure surface and the suction surface and extending radially within the blade and in fluidic communication with the interior flow passage;
- and
- a plurality of air outlets formed on the blade proximate the leading edge and extending into the blade to fluidically connect with the internal channel,
- wherein at least one air outlet of the plurality of air outlets is on the leading edge.
Dependencies are inferred from the claim text.