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US 2019/0195133 A1Published application
Method and system for turbine engine temperature regulation
AssigneeUnison Industries, LLC
InventorsScott Brian Wright, James Robert Turner
Life of this patent
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Abstract
A turbine engine temperature management system includes a turbine engine having a first turbine and a second turbine, a temperature sensor positioned between the first turbine and the second turbine and configured to sense a turbine engine temperature between the first turbine and the second turbine, a modulating fuel flow valve configured to control a fuel flow to the turbine engine, and a temperature controller configured to limit fuel flow to the turbine engine.
Claims20
A turbine engine temperature management system comprising:
- a turbine engine having a first turbine and a second turbine;
- a temperature sensor positioned between the first turbine and the second turbine and configured to sense a turbine engine temperature between the first turbine and the second turbine;
- a modulating fuel flow valve configured to control a fuel flow to the turbine engine;
- and
- a temperature controller configured to:
- limit a rate of change of the fuel flow to the turbine engine to less than a predetermined maximum rate of change of the fuel flow that will reduce a rate of change of the temperature and maintain a positive rate of change of a rotational speed of the turbine engine through a turbine engine starting sequence;
- and
- limit a rate of the fuel flow to greater than a predetermined minimum rate of the fuel flow that maintains a positive rate of change of temperature and a positive rate of change of the rotational speed of the turbine engine through the turbine engine starting sequence.
5 more elements
A turbine engine temperature management system comprising:
- a turbine engine having a high pressure turbine and a low pressure turbine;
- an inter-turbine temperature sensor positioned between the high pressure turbine and the low pressure turbine and configured to sense a turbine engine temperature between the high pressure turbine and the low pressure turbine;
- a modulating fuel flow valve configured to control a fuel flow to the turbine engine;
- and
- a temperature controller configured to:
- limit a rate of change of the fuel flow to the turbine engine during a starting sequence to less than a predetermined maximum rate of change of the fuel flow that will reduce a rate of change of the temperature and maintain a positive rate of change of a rotational speed of the turbine engine until the engine starting sequence reaches an engine idle speed;
- and
- limit a rate of the fuel flow during the starting sequence to greater than a predetermined minimum rate of the fuel flow that maintains a positive rate of change of temperature and a positive rate of change of the rotational speed of the turbine engine until the engine starting sequence reaches an engine idle speed.
5 more elements
Dependencies are inferred from the claim text.