Invention Grant
- Patent Title: Fan stagger angle for dirt rejection
- Patent Title (中): 风扇交错角度排污
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Application No.: US13176473Application Date: 2011-07-05
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Publication No.: US09115649B2Publication Date: 2015-08-25
- Inventor: Edward J. Gallagher , Becky E. Rose , Lisa I. Brilliant
- Applicant: Edward J. Gallagher , Becky E. Rose , Lisa I. Brilliant
- Applicant Address: US CT Hartford
- Assignee: United Technologies Corporation
- Current Assignee: United Technologies Corporation
- Current Assignee Address: US CT Hartford
- Agency: Carlson, Gaskey & Olds, P.C.
- Main IPC: F02C7/36
- IPC: F02C7/36 ; F01D15/12 ; F01D25/34 ; F02C7/05 ; F02K3/06

Abstract:
A gas turbine engine includes a spool, a turbine coupled to drive the spool, a propulsor coupled to be rotated about an axis by the turbine through the spool, and a gear assembly coupled between the propulsor and the spool such that rotation of the turbine drives the propulsor at a different speed than the spool. The propulsor includes a hub and a row of propulsor blades that extend from the hub. Each of the propulsor blades has a span between a root at the hub and a tip, and a chord between a leading edge and a trailing edge. The chord forms a stagger angle α with the axis, and the stagger angle α is less than 15° at a position along the propulsor blade that is within an inboard 20% of the span.
Public/Granted literature
- US20130011266A1 FAN STAGGER ANGLE FOR DIRT REJECTION Public/Granted day:2013-01-10
Information query
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