Honeywell International Inc.

Mike Baron

Timothy Ertz

Thomas Nesdill

Anthony Restivo

Paul Otto

Systems and methods for monitoring engine oil temperatures to detect higher than normal oil temperatures are provided. The system comprises a plurality of sensors for obtaining input signals from the operating engine for a predetermined set of engine conditions. At least one of the plurality of sensors includes an oil temperature sensor for measuring an engine oil temperature. The system also includes an engine control unit (ECU) where a plurality of predetermined limit values corresponding to at least one predetermined set of engine operating conditions is stored. The engine control unit is configured to select a predetermined limit value corresponding to a measured set of engine operating conditions, to calculate a maintenance limit value using the selected predetermined limit value, and to compare the measured oil temperature with the maintenance limit value. An output unit outputs a predetermined output depending on the result of the comparison.

Methods and systems for monitoring engine oil temperature of an operating engine

An engine system for starting a gas turbine engine is provided. The system includes a starter generator coupled to the gas turbine engine and configured to provide torque to the gas turbine engine and a controller coupled to the starter generator and configured to provide a command signal to the starter generator. The starter generator provides the torque to the gas turbine engine based on the command signal, and the controller is configured to command the starter generator at a dwell speed until ignition.

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Phoenix, AZ, United States of America

Mike Baron