Pre-start motoring synchronization for multiple engines
AssigneeRaytheon Technologies Corporation
InventorsMatthew D. Teicholz, James W. Dunn, Christopher P. Kmetz, Louis A. Celiberti
Life of this patent
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Abstract
An aspect includes a system for pre-start motoring control for multiple engines of an aircraft. The system includes a first engine starting system of a first engine and a controller. The controller is operable to control a motoring time of the first engine starting system relative to one or more other engine starting systems of one or more other engines of the aircraft by adjusting the motoring time of the first engine starting system within a tolerance of the motoring time of the one or more other engine starting systems in a pre-start motoring sequence.
Claims20
A system for pre-start motoring control for multiple engines of an aircraft, the system comprising:
- a first engine starting system of a first engine;
- and
- a controller operable to control a motoring time of the first engine starting system relative to one or more other engine starting systems of one or more other engines of the aircraft by adjusting the motoring time of the first engine starting system within a tolerance of a motoring time of the one or more other engine starting systems in a pre-start motoring sequence based on comparing the motoring time of the first engine starting system with the motoring time of the one or more other engine starting systems.
A system of an aircraft, the system comprising:
- a first engine system comprising a first gas turbine engine, a first starter, and a first controller operable to control the first starter to perform motoring of the first gas turbine engine in a pre-start motoring sequence;
- and
- a second engine system comprising a second gas turbine engine, a second starter, and a second controller operable to control the second starter to perform motoring of the second gas turbine engine in the pre-start motoring sequence, wherein a motoring time of the first gas turbine engine is controlled within a tolerance of a motoring time of the second gas turbine engine by adjusting the motoring time of the first gas turbine engine relative to the motoring time of the second gas turbine engine based on comparing the motoring time of the first gas turbine engine with the motoring time of the second gas turbine engine.
A method for pre-start motoring control for multiple engines of an aircraft, the method comprising:
- determining, by a controller, a motoring time of a first engine starting system of a first engine;
- comparing, by the controller, the motoring time of the first engine starting system with a motoring time of one or more other engine starting systems of one or more other engines of the aircraft;
- and
- controlling the motoring time of the first engine starting system relative to a tolerance of the motoring time of the one or more other engine starting systems by adjusting the motoring time of the first engine starting system relative to the one or more other engine starting systems in a pre-start motoring sequence based on comparing the motoring time of the first engine starting system with the motoring time of the one or more other engine starting systems.
Dependencies are inferred from the claim text.