Fan rotor with cooling holes
AssigneeHamilton Sundstrand Corporation
InventorsDarryl A. Colson, Brent J. Merritt, Danielle Mansfield-Marcoux
Life of this patent
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Abstract
A disc for a fan rotor (with a pilot to connect to a rotating shaft, a hub and a plurality of blades) includes a flat circular portion connecting to the pilot at an inner edge and to the hub at an outer edge; a plurality of first circular cooling holes of a first diameter located around the inner edge of the disc; and a plurality of second circular cooling holes of a second diameter located around the outer edge of the disc, wherein the second diameter is larger than the first diameter.
Claims14
A disc to allow cooling air to flow to a motor and bearings in a fan rotor with a pilot to connect to a rotating shaft, a hub and a plurality of blades, the disc comprising:
- a flat circular portion configured to connect to the pilot at an inner edge and to the hub at an outer edge;
- a plurality of bearing cooling holes of a first diameter located around the inner edge of the disc;
- and
- a plurality of motor cooling holes of a second diameter located around the outer edge of the disc, wherein the second diameter is larger than the first diameter.
A rotor for a fan system, the rotor comprising:
- a pilot to connect to a shaft for rotating the rotor;
- a circular disc portion extending around the pilot, the disc with a plurality of bearing cooling holes with a first diameter located around the pilot and a plurality of motor cooling holes with a second diameter located around an outer edge of the circular disc;
- a hub connecting to the outer edge of the circular disc portion;
- and
- a plurality of blades attached around the hub, wherein the second diameter is larger than the first diameter.
Dependencies are inferred from the claim text.