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US 10,479,517 B2Granted
Composite fan cowl with a core having tailored thickness
AssigneeThe Boeing Company
InventorsJoseph Benjamin LaBelle, Jason Franklin Joel
Life of this patent
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Abstract
An engine nacelle comprised of a top portion with hinges and a composite fan cowl pivotally connected to the top portion by the hinges. The composite fan cowl comprises a core with a hinge zone having a first thickness and a body zone having a second thickness. The hinge zone includes the hinges. The body zone is distal from the hinge zone, and the first thickness is less than the second thickness.
Claims21
A composite fan cowl connected to hold open rods, the composite fan cowl comprising:
- laminate skins;
- and
- a core, comprising:
- a hinge zone having a first thickness;
- a body zone having a second thickness different than the first thickness, the body zone different than the hinge zone;
- and
- areas of increased thickness having a third thickness, the third thickness greater than the second thickness, the areas of increased thickness disposed in the body zone of the core, and the areas of increased thickness associated with hold open rods.
4 more elements
A composite fan cowl comprising:
- a hinge zone;
- a body zone;
- and
- a core, wherein:
- a first portion of the core is disposed within the hinge zone;
- a second portion of the core is disposed within the body zone;
- the first portion of the core has a first thickness;
- the second portion of the core has a second thickness;
- the core has two areas of increased thickness, each having a third thickness;
- the two areas of increased thickness are positioned within the second portion of the core;
- the first thickness is different than the second thickness;
- and
- the third thickness is greater than the second thickness.
10 more elements
An engine nacelle comprising:
- a top portion with hinges;
- and
- a composite fan cowl pivotally connected to the top portion by the hinges, the composite fan cowl comprising a core, wherein the core includes:
- a hinge zone having a first thickness of the core;
- and
- a body zone having a second thickness of the core, the hinge zone including the hinges, the body zone distally disposed from the hinge zone, and wherein the first thickness of the core less than the second thickness of the core.
3 more elements
A composite fan cowl comprising:
- a core with a hinge zone having a first thickness, a body zone having a second thickness, and two areas of increased thickness including a third thickness;
- wherein:
- the two areas of increased thickness of the core comprise a plurality of ramps;
- the two areas of increased thickness are positioned within the body zone;
- the first thickness and second thickness are different from each other;
- the two areas of increased thickness have a greater thickness than the second thickness;
- the first thickness and the second thickness are in a range of 0.5 inches and 1.5 inches;
- and
- the plurality of ramps comprise a ramp up for each of the two areas of increased thickness and a ramp down for each of the two areas of increased thickness, the ramp up for each of the two areas of increased thickness having progressively increased thickness from the second thickness to the third thickness, and the ramp down for each of the two areas of increased thickness having progressively decreased thickness from the third thickness to the second thickness.
6 more elements
Dependencies are inferred from the claim text.