Invention Grant
- Patent Title: Pitch range for a variable pitch fan
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Application No.: US14941799Application Date: 2015-11-16
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Publication No.: US10288083B2Publication Date: 2019-05-14
- Inventor: Brandon Wayne Miller , Andrew Breeze-Stringfellow , Darek Tomasz Zatorski , Syed Arif Khalid , Christopher James Kroger , Daniel Alan Niergarth
- Applicant: General Electric Company
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: General Electric Company
- Agent Pamela Kachur
- Main IPC: F04D29/36
- IPC: F04D29/36 ; F04D27/00 ; F04D29/32 ; F04D29/52 ; F01D7/00 ; B64C11/30

Abstract:
A variable pitch fan for a propulsion device is provided. The variable pitch fan includes a plurality of fan blades coupled to a disk and a rotatable front hub covering the disk. Each fan blade is rotatable about a pitch axis to vary a pitch of the fan blade. The pitch is variable within a pitch range that is at least about 80° to about 130°. Each fan blade extends radially outward from the disk along a span from a root to a tip. A portion of the span adjacent the root defines a root span region, a portion of the span adjacent the tip defines a tip span region. A solidity of the variable pitch fan is at least 1.0 in the root span region.
Public/Granted literature
- US20170138370A1 PITCH RANGE FOR A VARIABLE PITCH FAN Public/Granted day:2017-05-18
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