US 6,416,280 B1 · One piece spinner

Abstract

An exemplary embodiment of the invention is a spinner for a front end of a fan assembly of a gas turbine engine. The spinner includes a single piece substantially conically shaped hollow body circumscribed about a centerline extending aftwardly from a tip to an axially aft spinner end. A plurality of bolt holes extend axially parallel to the centerline through the hollow body at an axial location between the tip and the aft spinner end. The hollow body may include a forward conical section extending aftwardly from the tip to a transition section, an aft conical section extending aftwardly from the transition section to the aft spinner end, and the bolt holes are axially located in the transition section. An aft spinner flange attached to the axially aft spinner end includes a plurality of flange lightening holes axially disposed through the aft spinner flange and the flange lightening holes.

Claims16

Dependent claims

A spinner for mounting to a front end of a fan assembly of a gas turbine engine, said spinner comprising:

a single piece substantially conically shaped hollow body circumscribed about a centerline,
said hollow body extending aftwardly from a tip to an axially aft spinner end,
said hollow body including a forward conical section extending aftwardly from said tip to a transition section and an aft conical section extending aftwardly from said transition section to said aft spinner end,
said forward and aft conical sections having different cone angles,
a plurality of bolt holes extending axially parallel to the centerline through said hollow body at an axial location between said tip and said aft spinner end in said transition section.

2 more elements

A gas turbine engine rotor disk assembly comprising:

a disk including a number of annular hubs circumscribed about a centerline and connected to a disk rim located radially outwardly of said hubs,
each of said hubs connected to said disk rim by a web,
a plurality of circumferentially spaced apart dovetail slots disposed through said rim, extending circumferentially between disk posts of said rim, extending axially from a forward end to an aft end of said rim, and extending radially inwardly from a disk outer surface of said rim,
an annular forward extension having an annular forward flange and connected to an annular forward arm extending forwardly from a forward most one of said webs;
a spinner mounted to said disk, said spinner comprising;
a single piece substantially conically shaped hollow body circumscribed about a centerline,
said hollow body extending aftwardly from a tip to an axially aft spinner end,
a plurality of bolt holes extending axially parallel to the centerline through said hollow body at an axial location between said tip and said aft spinner end, and
said spinner connected to said forward extension by spinner bolts disposed through said bolt holes and forward bolt holes in said annular forward flange.

6 more elements

Dependencies are inferred from the claim text.

One piece spinner

Life of this patent

One piece spinner

Life of this patent

Abstract

Claims16