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US 2018/0319492 A1Published application
Rotor blade structures
AssigneeSikorsky Aircraft Corporation
InventorsJustin Thomas, Krzysztof Kopanski, Mark W. Scott
Life of this patent
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Abstract
A closeout structure for a rotor blade includes a first fluid channel for supplying a first pressure to a first port of a trailing edge (TE) device, a second fluid channel for supplying a second pressure to a second port of the TE de vice, and a trough disposed between the first fluid channel and the second fluid channel. The closeout structure forms a double-W shape.
Claims15
A closeout structure for a rotor blade having a trailing edge (TE) device, comprising:
- a first fluid channel having a first port which supplies a first pressure to the TE device via the first port;
- a second fluid channel having a second port which supplies a second pressure to the TE device via the second port;
- and
- a trough which forms a seal between the first channel and the second fluid channel, wherein the closeout structure forms a double-W shape.
1 more element
A rotor blade, comprising:
- an airfoil having a leading edge and a trailing edge and which extends from a root end to a tip end, the airfoil having a cavity extending at least a portion of a length of the airfoil between the root and tip ends;
- a trailing edge (TE) device disposed within the rotor blade substantially at the trailing edge and configured to operate with a differential pressure, the TE device including a first port and a second port;
- and
- a closeout structure disposed in the cavity, comprising:
- a first fluid channel for supplying a first pressure to the first port of the TE device;
- a second fluid channel for supplying a second pressure to the second port of the TE device, the second pressure being other than the first pressure to create the differential pressure;
- and
- a trough disposed which forms a seal between the first channel and the second fluid channel, wherein the closeout structure forms a double-W shape.
5 more elements
A rotorcraft, comprising:
- a fuselage;
- a rotor hub rotatably disposed on the fuselage;
- and
- a plurality of rotor blades connected to the rotor hub, each blade including:
- a trailing edge (TE) device disposed within the rotor blade substantially at the trailing edge and configured to operate with a differential pressure, the TE device including a first port and a second port;
- and
- a closeout structure disposed in the cavity, comprising:
- a first fluid channel for supplying a first pressure to the first port of the TE device;
- a second fluid channel for supplying a second pressure to the second port of the TE device, the second pressure being other than the first pressure to create the differential pressure;
- and
- a trough disposed which forms a seal between the first channel and the second fluid channel, wherein the closeout structure forms a double-W shape.
8 more elements
Dependencies are inferred from the claim text.