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US 9,976,426 B2Granted
Fan platform with stiffening feature
AssigneeUnited Technologies Corporation
InventorsMatthew A. Turner, Royce E. Tatton, Kristin Wood, Matthew Satterwhite
Life of this patent
Estimating the term…
Abstract
A fan blade platform is provided. The fan blade platform may include a wall, a first sidewall extending from the flowpath to a circular member, and a second sidewall extending from the flowpath to the circular member. A stiffening member may also extend from the circular member to the flowpath and be formed integrally with the first sidewall, the second sidewall, and the flowpath.
Claims15
A fan blade platform, comprising:
- an outer wall;
- a first sidewall extending from the outer wall to a first circular member and to a second circular member spaced from the first circular member;
- a second sidewall extending from the outer wall to the first circular member and to the second circular member;
- and
- a stiffening member extending from the first circular member and the second circular member to the outer wall, the stiffening member formed integrally with the first circular member, the second circular member, and the outer wall
- wherein the stiffening member comprises:
- a first arm and a second arm extending from the first circular member toward the outer wall, the first and second arms defining a first opening in the stiffening member,
- a third arm and a fourth arm extending from the second circular member toward the outer wall, the third and fourth arms defining a second opening in the stiffening member and
- a third opening disposed between the second arm and the third arm, the third opening extending axially between the first circular member and the second circular member.
6 more elements
A fan blade assembly, comprising:
- a hub configured to rotate about an axis;
- a fan blade coupled to the hub;
- a platform configured to rotate with the fan blade and the hub, the platform comprising:
- an outer wall;
- a first sidewall extending from the outer wall to a first circular member and to a second circular member spaced from the first circular member;
- a second sidewall extending from the outer wall to the first circular member and to the second circular member;
- and
- a stiffening member extending from the first circular member and the second circular member to the outer wall, the stiffening member formed integrally with the first circular member, the second circular member, and the outer wall
- wherein the stiffening member comprises:
- a first arm and a second arm extending from the first circular member toward the outer wall, the first and second arms defining a first opening in the stiffening member,
- a third arm and a fourth arm extending from the second circular member toward the outer wall, the third and fourth arms defining a second opening in the stiffening member and
- a third opening disposed between the second arm and the third arm, the third opening extending axially between the first circular member and the second circular member;
- a pin configured to secure the first and second circular members to a tab on the hub and to retain the platform to the hub.
10 more elements
Dependencies are inferred from the claim text.