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US 11,898,458 B1Granted
Radial fan with leading edge air injection
AssigneeHamilton Sundstrand Corporation
InventorsJeremy Clavette, Viktor Kilchyk
Life of this patent
Estimating the term…
Abstract
An integrally bladed rotor includes a rotor disk, rotor blade, internal channel and air outlets. The rotor blade includes a body defined by a pressure surface and suction surface between a leading edge and a trailing edge. The internal channel extends radially from the rotor disk internally within the body of the rotor blade. The air outlets are formed proximate the leading edge and extend within the body of the rotor blade to the internal channel.
Claims19
An air cycle machine comprises:
- an integrally bladed rotor in a ram air fan of the air cycle machine, the integrally bladed rotor comprising:
- a rotor disk comprising a rim extending circumferentially about a center axis, wherein the rim comprises an interior rim surface and an exterior rim surface radially outward from the interior rim surface relative the center axis;
- a plurality of rotor blades extending radially outward from the exterior rim surface of the integrally bladed rotor, wherein a rotor blade of the plurality of rotor blades comprises:
- a body extending from a leading edge to a trailing edge;
- a pressure surface formed on the body and extending from the leading edge to the trailing edge;
- and
- a suction surface formed on the body opposite of the pressure surface and extending from the leading edge to the trailing edge;
- an internal channel inside of the body of the rotor blade and extending radially within the rotor blade;
- and
- a plurality of air outlets formed proximate the leading edge of the rotor blade and extending into the body and fluidically connected to the internal channel.
7 more elements
An air cycle machine comprising:
- a turbine section comprising a turbine rotor;
- a compressor section comprising a compressor rotor;
- a ram air fan section comprising:
- an integrally bladed rotor, and
- a ram air scoop,
- wherein the integrally bladed rotor comprises:
- a rotor disk comprising a rim extending circumferentially about a center axis, wherein the rim comprises an interior rim surface and an exterior rim surface radially outward from the interior rim surface relative the center axis;
- a rotor blade extending radially outward from the exterior rim surface of the integrally bladed rotor, wherein the rotor blade comprises:
- a body extending from a leading edge to a trailing edge;
- a pressure surface formed on the body and extending from the leading edge to the trailing edge;
- and
- a suction surface formed on the body opposite of the pressure surface and extending from the leading edge to the trailing edge;
- an internal channel inside of the body of the rotor blade and extending radially within the rotor blade;
- and
- a plurality of air outlets formed proximate the leading edge of the rotor blade and extending into the body and fluidically connected to the internal channel;
- and
- a tie rod connected to the turbine rotor, the compressor rotor, and the integrally bladed rotor.
14 more elements
Dependencies are inferred from the claim text.