Air turbine starter torque control system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 23, 2023
Grant Date -
N/A
app pub date -
Nov 10, 2021
filing date -
Dec 22, 2020
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An enhanced engine starter system controls an air turbine starter at the startup of operation of a turbine engine. The engine starter system includes an air turbine starter (ATS) that operates in accordance with more than one speed/torque curve during the startup procedure. A controller commands the starter control valve to provide a regulated pressure to the ATS in accordance with a first speed/torque curve to initiate the gas turbine engine startup without exceeding a maximum or design limiting torque. Overall duration of the startup procedure is reduced by the controller subsequently operating the ATS in accordance with a second speed/torque curve having a higher operational pressure once the ATS reaches a predetermined transition speed. The torque at the predetermined transition speed on the higher pressure second curve remains less than the design limiting torque, but provides a higher torque as compared to the first speed/torque curve to reduce the duration of the startup procedure.
First Claim
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Family
International Classification(s)
- 2021 Application Filing Year
- F02N Class
- 128 Applications Filed
- 83 Patents Issued To-Date
- 64.85 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F02N Class
- 0 % this patent is cited more than
- 2 Age
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