Invention Grant
- Patent Title: Variable pitch fan pitch range limiter
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Application No.: US14838405Application Date: 2015-08-28
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Publication No.: US10443412B2Publication Date: 2019-10-15
- Inventor: Daniel Alan Niergarth , Brandon Wayne Miller
- 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: Dority & Manning, P.A.
- Main IPC: F01D7/00
- IPC: F01D7/00 ; F02K1/66 ; F04D27/02 ; F04D29/32 ; F02C9/58 ; B64C11/00

Abstract:
A variable pitch fan for gas turbine engine is provided. The variable pitch fan includes a plurality of fan blades rotatably coupled to a disk and an actuation assembly for changing a pitch of each of the plurality of fan blades. The actuation assembly generally includes an actuation member operably connected to at least one of the plurality of fan blades and a pin. The pin is movable between a first position in which the pin is positioned at least partially in a channel defined in the actuation member, and a second position. The pin blocks movement of the actuation member relative to the pin past a range defined by the channel when in the first position. The actuation assembly further includes a retraction system for selectively engaging the pin in moving the pin from the first position to the second position.
Public/Granted literature
- US20170058683A1 VARIABLE PITCH FAN PITCH RANGE LIMITER Public/Granted day:2017-03-02
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