Systems and methods for starting an engine
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United States of America Patent
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Mar 30, 2021
Grant Date -
Mar 15, 2018
app pub date -
Apr 13, 2016
filing date -
Apr 15, 2015
priority date (Note) -
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Abstract
A system for starting a gas turbine engine includes a rotor drive system and a hydraulic motor system operatively connected to the rotor drive system. A gas turbine engine is operatively connected to the hydraulic motor system for starting the gas turbine engine. A method for starting an engine includes initiating single-engine-operation on a multi-engine aircraft. Single-engine operation includes operating a first engine and powering down a second engine. The method includes running a hydraulic motor system. The hydraulic motor system is driven by the rotor drive system and is operatively connected to the second engine. The method includes identifying a need to start the second engine and starting the second engine using the hydraulic motor system.
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