US3758764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine power plant control with an on-line optimization control
Assignee: RTX Corp
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Filing: 1970-10-29
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Granted: 1973-09-11
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Expires: 1990-10-29
Abstract
Abstract Means for speeding up the assessment and optimization process for a turbine engine control including a factor that estimates the change in steady state fuel flow required to maintain the desired thrust level.
Inventors
- 👤 K Harner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:19
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/0005
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
89 words
In a self-organizing control system for a turbine type of power plant having a compressor and variable area mechanisms, said system having performance assessment means responsive to power plant operating parameters for assessing the performance of said power plant, correlation logic means responsive to the performance assessment means for adjusting the performance by varying said variable area mechanism in a phase relationship, said performance assessment means including the rate of change of said compressor so that the performance assessment is made during a transient condition of the power plant.
Claim 2
Dependent Claim
89 words
In a self-organizing control system for a turbine type of power plant having a compressor and variable area mechanisms, said system having performance assessment means responsive to power plant operating parameters for assessing the performance of said power plant, correlation logic means responsive to the performance assessment means for adjusting the performance by varying said variable area mechanism in a phase relationship, said performance assessment means including the rate of change of said compressor so that the performance assessment is made during a transient condition of the power plant.
Claim 3
Dependent Claim
90 words
In a self-organizing control system as claimed in claim 1 wherein said adjusting means includes the control of said turbine type of power plant, the power assessment means for assessing the performance includes an N term and the estimated change in fuel flow resulting after a transient at a given thrust level is given by the equation: Delta Wf Delta Wf - (TSFC) Delta Fn -K Delta N where K a constant Wf fuel flow TSFC thrust specific fuel consumption Fn net engine thrust N rate of change of speed
Claim 4
Dependent Claim
102 words
A fuel control for a turbine type of power plant having a compressor and variable area geometry in combination with a self-organizing control having means for assessing the performance of said power plant, fuel metering means having its independent control, means for ascertaining the net thrust of said power plant, said self-organizing control including power assessment means responsive to said fuel metering means, said net thrust ascertaining means and the rate of change of the speed of said compressor wherein said rate of change of the speed of said compressor serves to speed up the response time of said power assessment means.
Claim 5
Dependent Claim
102 words
A fuel control for a turbine type of power plant having a compressor and variable area geometry in combination with a self-organizing control having means for assessing the performance of said power plant, fuel metering means having its independent control, means for ascertaining the net thrust of said power plant, said self-organizing control including power assessment means responsive to said fuel metering means, said net thrust ascertaining means and the rate of change of the speed of said compressor wherein said rate of change of the speed of said compressor serves to speed up the response time of said power assessment means.
Claim 6
Dependent Claim
97 words
A fuel control as claimed in claim 3 wherein said variable area geometry includes the exhaust nozzles and turbine stator vanes of the power plant, adjusting means for positioning said stator vanes and exhaust nozzle, said performance assessment means includes a N term and the estimated change in fuel flow after a transient at a given thrust level is given by the equation: Delta Wf Delta Wf - (TSFC) Delta Fn - K Delta N where K a constant Wf fuel flow TSFC thrust specific fuel consumption Fn net engine thrust N rate of change of speed
Claim 7
Dependent Claim
62 words
A self-organizinG control as claimed in claim 3 including a correlation logic unit responsive to said performance assessment means for determining the phase relationship of the signal generated by said performance assessment means and a synchronizer establishing the time interval of said correlation logic unit for performing experiments on the performance of said power plant by perturbations of said variable area geometry.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |