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US Patent 11946437 Variable pitch fans for turbomachinery engines

Patent 11946437 was granted and assigned to General Electric on April, 2024 by the United States Patent and Trademark Office.

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Is a

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Patent attributes

Patent Applicant

General Electric

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Current Assignee

General Electric

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Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

Patent Inventor Names

Christopher J. Kroger0

Nicholas M. Daggett0

Daniel A. Niergarth0

Ian F. Prentice0

Martin Manning0

Date of Patent

April 2, 2024

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Patent Application Number

178194380

Date Filed

August 12, 2022

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Patent Citations

US Patent 10288083 Pitch range for a variable pitch fan

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US Patent 7901185 Variable rotor blade for gas turbine engine

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US Patent 8998577 Turbine last stage flow path

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US Patent 10072510 Variable pitch fan for gas turbine engine and method of assembling the same

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US Patent 10618667 Fan module with adjustable pitch blades and power system

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Patent Primary Examiner

Christopher Verdier

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Patent abstract

A turbomachinery engine can include a fan assembly with a plurality of variable pitch fan blades. The fan blades are configured such that they define a first VPF parameter and a second VPF parameter. The first VPF parameter is within a range of 0.10 to 0.40 and is defined as the hub-to-tip radius ratio divided by the fan pressure ratio. The second VPF parameter is within a range of 1-30 lbf/in

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