Honeywell International Inc.

Michael D Dwyer

David R Hollingsworth

Harold Riley

Cecilia Lam

Dean R Hellickson

Thomas Nesdill

Richard Wessels

William C Bourne

John W Thornberry

David N Girard

John Arenare

Albert L West

A system and method for supplying compressed air from an auxiliary power unit to a main engine starter motor. The inlet guide vanes are controlled using either first or second inlet guide vane control logic and the surge control valve is controlled using either first or second surge control valve control logic. When the first inlet guide vane control logic is used, the inlet guide vanes are positioned based on a demand signal, when the second inlet guide vane control logic is used, the inlet guide vanes are positioned based on a demand schedule, when the first surge control valve logic is used, the surge control valve can be commanded to repeatedly move to only a fully-closed position and a fully-open position, and when the second surge control valve logic is used, the surge control valve can be commanded to the fully-closed position only when maximum flow is commanded.

System and method for supplying compressed air to a main engine starter motor

An aircraft engine system includes a main engine having a main engine speed; a starter coupled to the main engine and configured to drive the main engine with compressed air; and an auxiliary power unit (APU) system coupled to the starter and configured to provide the compressed air to the starter. The APU system includes an APU with a compressor to generate the compressed air, and an APU electronic control unit (ECU) coupled to the APU, the APU ECU configured to receive the engine speed of the main engine and to control operation of the APU to modify an amount of the compressed air to the starter based on the main engine speed.

Systems and methods for controlling aircraft main engine speeds by adjusting compressed air flow from an APU

A disposal system is provided. In an embodiment, by way of example, the disposal system can include a first tank adapted to be at least partially filled with waste fluid. The disposal system can also include a waste processing device adapted to receive waste fluid and adjust one or more properties of the waste fluid. Additionally, the waste disposal system can include a jet engine comprising a first chamber adapted to contain a fluid undergoing compression. The jet engine can be in fluid communication with the waste processing device to receive the waste fluid from the waste processing device.

System and method for improving jet aircraft operating efficiency

An apparatus for measuring a volume of liquid within a vessel is described. The apparatus includes a plurality of devices each having electrical properties that are dependent on a temperature of the device, a constant current source coupled to the plurality of devices, and a unit configured to output a signal based on an amount of voltage at by the plurality of devices. The amount of voltage is based on a number of the plurality of devices immersed in the liquid, and a number of the plurality of devices not immersed in the liquid.

Methods and systems for liquid volumetric measurement

A sensor unit to detect a stillness event, the sensor unit including a gyroscope attached to a monitored person, a micro-controller communicatively coupled to the gyroscope, and a memory communicatively coupled to receive and to store the angular velocity data with a correlated time. The gyroscope senses an angular velocity of the monitored person and outputs angular velocity data based on the sensed angular velocity. The micro-controller receives the angular velocity data and recognizes a quiescence-pattern data in the angular velocity data.

Medical application for no-motion sensor

A method for testing a unit is described where the unit includes one or more of electrical, electronic, mechanical, and electromechanical components. The described method includes applying at least one stimulus to the unit, receiving sound emissions from the unit, converting the sound emissions into one or more acoustic signatures, comparing the acoustic signatures based on the received emissions to stored acoustic signatures expected as a result of the at least one stimulus, and determining a status for the unit based on the comparisons.

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Seminole, FL, United States of America

Michael D Dwyer