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US 2012/0067062 A1Published application
Turbine starter valve
AssigneeHamilton Sundstrand Corporation
InventorLeo Veilleux, JR.
Life of this patent
Estimating the term…
Abstract
A turbine starter including a valve to modulate an amount of air permitted to flow to a turbine section, a sensor to detect a characteristic of the air at locations defined between the valve and the turbine section and downstream from the turbine section and an electrically powered motor coupled to the valve and the sensor to control the valve to modulate the amount of the air permitted to flow to the turbine section in accordance with the detected characteristic.
Claims20
A turbine starter, comprising:
- a valve to modulate an amount of air permitted to flow to a turbine section;
- a sensor to detect a characteristic of the air at locations defined between the valve and the turbine section and downstream from the turbine section;
- and
- an electrically powered motor coupled to the valve and the sensor to control the valve to modulate the amount of the air permitted to flow to the turbine section in accordance with the detected characteristic.
1 more element
A turbine starter, comprising:
- a turbine section;
- a supply duct formed to define an air flow pathway by which air is provided to the turbine section;
- a valve disposed within the supply duct along the air flow pathway to modulate an amount of the air permitted to flow to the turbine section;
- a sensor to detect a characteristic of the air at a location defined between the valve and the turbine section and a location defined downstream from the turbine section;
- and
- an electrically powered motor coupled to the valve and the sensor to control the valve to modulate the amount of the air permitted to flow to the turbine section in accordance with the detected characteristic.
3 more elements
A turbine starter, comprising:
- a turbine section;
- a supply duct formed to define an air flow pathway by which air is provided to the turbine section;
- a valve disposed within the supply duct along the air flow pathway to modulate an amount of the air permitted to flow to the turbine section;
- a static pressure sensor disposed downstream from the valve and upstream from the turbine section to detect a pressure of the air upstream from the turbine section;
- an ambient pressure sensor disposed downstream from or at the turbine section to detect an ambient pressure of the air;
- and
- an electrically powered motor coupled to the valve, the sensor and the ambient pressure sensor to control the valve to modulate the amount of the air permitted to flow to the turbine section in accordance with a pressure drop across the turbine section, which is associated with the detected pressure upstream from the turbine section and the detected ambient pressure, and in accordance with feedback control.
4 more elements
Dependencies are inferred from the claim text.