Turbine vane with platform pad
AssigneeRaytheon Technologies Corporation
InventorsJohn T. Ols, Richard N. Allen, Steven D. Porter, Paul K. Sanchez, Sandra S. Pinero
Life of this patent
Estimating the term…
Abstract
A vane has an airfoil extending between a radially outer platform and a radially inner platform. At least one of the platforms has nominally radially thinner portions, and a pad defining a radially thicker portion. The pad has a radial thickness that is greater than a thickness of the nominal radially thinner portions. The pad surrounds an outer periphery of the airfoil on a side of the radially outer platform. The pad has a varying radial thickness. A mid-turbine frame and a gas turbine engine are also disclosed.
Claims4
A mid-turbine frame comprising:
- a plurality of vanes each including an airfoil extending between a radially outer platform and a radially inner platform;
- said radially outer platform having nominally radially thinner portions, and a pad defining a radially thicker portion, with said pad having a radial thickness that is greater than a thickness of said nominally radially thinner portions and said pad surrounding an outer periphery of said airfoils on a radially outer side of said radially outer platform, and said pad having a varying radial thickness;
- and
- said nominally radially thinner portions being circumferentially intermediate adjacent airfoils of the plurality of vanes;
- and
- wherein said pad having a radially thickest portion forward of a leading edge of said airfoil, and radially thinner portions extending toward a trailing edge of said airfoil.
A mid-turbine frame comprising:
- a plurality of vanes each including an airfoil extending between a radially outer platform and a radially inner platform;
- said radially outer platform having nominally radially thinner portions, and a pad defining a radially thicker portion, with said pad having a radial thickness that is greater than a thickness of said nominally radially thinner portions and said pad surrounding an outer periphery of said airfoils on a radially outer side of said radially outer platform, and said pad having a varying radial thickness;
- and
- said nominally radially thinner portions being circumferentially intermediate adjacent airfoils of the plurality of vanes;
- and
- wherein an outwardly facing surface of said at least one of said platforms having a first total surface area and said pad having a second surface area, with said second surface area being between 15% and 50% of said first total surface area.
Dependencies are inferred from the claim text.