US Patent 9429077 Multiple turboshaft engine control method and system for helicopters

Patent 9429077 was granted and assigned to Pratt & Whitney Canada on August, 2016 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Pratt & Whitney Canada

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

9429077

Date of Patent

August 30, 2016

Patent Application Number

13312232

Date Filed

December 6, 2011

Patent Citations Received

‌

US Patent 11905888 Multi-engine system and power transfer between engines thereof

Patent Primary Examiner

‌

Gerald L Sung

Patent abstract

Electric power from the low spool of a turboshaft engine is transferred to drive the compressor of an other turboshaft engine. This is used to assist in maintaining the other turboshaft idling while a single engine provides flight power or to increase acceleration for instance.

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