CPC F01D 21/045 (2013.01) [B64D 13/08 (2013.01); F01D 5/048 (2013.01); F04D 29/284 (2013.01); F05B 2240/306 (2020.08)] | 7 Claims |
1. A rotor comprising:
a base member including a first side, a second side opposite the first side, and a central opening passing through the first side and the second side, the second side including an outer circumferential edge defined by a first dimension of the base member and the central opening having an inner circumferential edge defined by a second dimension;
a plurality of blades extending outwardly from the first side, the plurality of blades extending about the central opening; and
a fuse element formed in the second side and extending along one of a radial direction and a circumferential direction, the fuse element forming a built-in failure mechanism including a uniform cross-section and having a length that is less than the first dimension, the fuse element causing a crack to propagate across the base member when the rotor is operated above a selected design speed, wherein the fuse element includes a first end positioned at the inner circumferential edge, a second end positioned at the outer circumferential edge, and an intermediate portion.
|
6. A rotor comprising:
a base member including a first side, a second side opposite the first side, and a central opening passing through the first side and the second side, the second side including an outer circumferential edge having a first dimension and the central opening having an inner circumferential edge having a second dimension;
a plurality of blades extending outwardly from the first side, the plurality of blades extending about the central opening; and
a fuse element formed in the second side and extending along one of a radial direction and a circumferential direction, the fuse element forming a built-in failure mechanism including a uniform cross-section and having a length that is less than the first dimension, the fuse element causing a crack to propagate across the base member when the rotor is operated above a selected design speed, wherein the fuse element includes a first end positioned at the inner circumferential edge and a second end that is spaced from the outer circumferential edge.
|
7. An aircraft comprising:
a fuselage defining a cockpit and a passenger cabin;
an air conditioning unit configured to direct conditioned air into one of the cockpit and the passenger cabin, the air conditioning unit including a rotor comprising:
a base member including a first side, a second side opposite the first side, and a central opening passing through the first side and the second side, the second side including an outer circumferential edge defined by a first dimension of the base member and the central opening having an inner circumferential edge defined by a second dimension;
a plurality of fins extending outwardly from the first side, the plurality of fins extending about the central opening; and
a fuse element formed in the second side and extending along one of a radial direction and a circumferential direction, the fuse element forming a built-in failure mechanism including a uniform cross-section and having a length that is less than the first dimension, the fuse element causing a crack to propagate across the base member when the rotor is operated above a selected design speed, wherein the fuse element includes a first end positioned at the inner circumferential edge, a second end positioned at the outer circumferential edge, and an intermediate portion.
|