Patent US3653206A successfully refreshed from Google Patents.
US3653206A
Expired / Lapsed
US
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Control system for gas turbine engines
Assignee: MTU Aero Engines AG
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Filing: 1970-03-31
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Granted: 1972-04-04
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Expires: 1990-03-31
Abstract
Abstract A control installation for a gas turbine engine which limits the maximum temperature of the propellant gases by an adjusting device controlled by an exhaust gas temperature regulator, which influences the fuel speed regulating device.
Inventors
- 👤 Christian Greune
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:43
CPC Classifications
F; F02; F02C; F02C9/00; F02C9/26; F02C9/32; F02C9/263; F02C9/28; F05; F05D; F05D2270/00; F05D2270/01; F05D2270/02; F05D2270/021; F05D2270/11; F05D2270/112; F05D2270/30; F05D2270/303
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
45 words
A control system for gas turbine engines for limiting the maximum temperature of the propellant, which includes fuel speed regulating means, characterized by exhaust gas temperature regulator means having adjusting means operatively connected with and influencing the set value of the fuel speed regulating means.
Claim 2
Dependent Claim
45 words
A control system for gas turbine engines for limiting the maximum temperature of the propellant, which includes fuel speed regulating means, characterized by exhaust gas temperature regulator means having adjusting means operatively connected with and influencing the set value of the fuel speed regulating means.
Claim 3
Dependent Claim
64 words
A control system as set forth in claim 1, in which said adjusting means includes an actuating piston spring-loaded on one side, which is short-circuited by a throttle means, said actuating piston being operatively connected on the spring side thereof with a control aperture of the temperature regulator means and being subjected to a servo energy supplied to the side thereof opposite the spring.
Claim 4
Dependent Claim
13 words
A control system according to claim 2, wherein said throttle means is adjustable.
Claim 5
Dependent Claim
48 words
A control system as set forth in claim 3, in which a spring-loaded telescope means is arranged between a speed selector lever and an operating lever which enables the temperature regulator means to override the movement of the operating lever operatively connected with said fuel speed regulating means.
Claim 6
Dependent Claim
55 words
A control system according to claim 1, in which the fuel speed regulating means includes means for adjusting the fuel supply between two limits, and in which said adjusting means reduces the limit of maximum fuel supply in the direction of reducing the rotational speed of the engine in case of exceeding the predetermined temperature.
Claim 7
Dependent Claim
32 words
A control system according to claim 5, in which said adjusting means includes an adjustable stop for an operating member, which is adjusted in dependence on the propellant temperature of the turbine.
Claim 8
Dependent Claim
24 words
A control system according to claim 6, with a speed selector means, and means for overriding the speed selector means by said adjusting means.
Claim 9
Dependent Claim
24 words
A control system according to claim 5, with a speed selector means, and means for overriding the speed selector means by said adjusting means.
Claim 10
Dependent Claim
48 words
A control system as set forth in claim 1, in which a spring-loaded telescope means is arranged between a speed selector lever and an operating lever which enables the temperature regulator means to override the movement of the operating lever operatively connected with said fuel speed regulating means.
Claim 11
Dependent Claim
22 words
A control system as set forth in claim 2, wherein said servo energy is supplied by a compressor means of the engine.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |