- Patent Title: Gas turbine engine blade with variable density and wide chord tip
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Application No.: US16397265Application Date: 2019-04-29
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Publication No.: US10954799B2Publication Date: 2021-03-23
- Inventor: Pitchaiah Vijay Chakka , James D. Hill , David R. Pack
- Applicant: United Technologies Corporation
- Applicant Address: US CT Farmington
- Assignee: United Technologies Corporation
- Current Assignee: United Technologies Corporation
- Current Assignee Address: US CT Farmington
- Agency: Carlson, Gaskey & Olds, P.C.
- Main IPC: F01D5/18
- IPC: F01D5/18 ; F01D5/14 ; F01D5/28

Abstract:
A blade for a gas turbine engine includes a body that includes an airfoil that extends in a radial direction from a 0% span position near an airfoil base to a 100% span position at an airfoil tip. The airfoil has a leading edge and a trailing edge that define the true chord length. The airfoil includes a first portion near the airfoil base with a first density and a second portion near the airfoil tip with a second density. The second density is less than the first density. The second portion includes an increasing true chord length in the radial direction. The second portion is in the range of 90% span to 100% span.
Public/Granted literature
- US20200024962A1 GAS TURBINE ENGINE BLADE WITH VARIABLE DENSITY AND WIDE CHORD TIP Public/Granted day:2020-01-23
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