GB738895A - Devices for automatically controlling the secondary fuel supply in jet propulsion and other gas turbine engines - Google Patents
Devices for automatically controlling the secondary fuel supply in jet propulsion and other gas turbine enginesInfo
- Publication number
- GB738895A GB738895A GB26321/52A GB2632152A GB738895A GB 738895 A GB738895 A GB 738895A GB 26321/52 A GB26321/52 A GB 26321/52A GB 2632152 A GB2632152 A GB 2632152A GB 738895 A GB738895 A GB 738895A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- pressure
- bellows
- air
- fuel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000446 fuel Substances 0.000 title abstract 9
- 239000002775 capsule Substances 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 238000002485 combustion reaction Methods 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02K—JET-PROPULSION PLANTS
- F02K3/00—Plants including a gas turbine driving a compressor or a ducted fan
- F02K3/08—Plants including a gas turbine driving a compressor or a ducted fan with supplementary heating of the working fluid; Control thereof
- F02K3/10—Plants including a gas turbine driving a compressor or a ducted fan with supplementary heating of the working fluid; Control thereof by after-burners
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
Abstract
738,895. Jet propulsion plant; turbines. SVENSKA FLYGMOTOR AKTIEBOLAGET. Oct. 20, 1952 [Oct. 18, 1951], No. 26321/52. Class 110 (3). [Also in Group XXIX] A device for automatically regulating the supply of secondary fuel to a jet-propulsion or other gas turbine engine comprises a centrifugal pump 2 for supplying secondary fuel past a fuel control valve or throttle 6 to a secondary combustion chamber 20, an air-driven turbine 1 for driving the pump 2 and an air valve 3 in the air supply pipe 30 to the air turbine 1, the valve 3 being controlled automatically in accordance with the delivery pressure of the main compressor 9, the delivery pressure of the fuel pump 2 and the surrounding air pressure and the fuel throttle 6 being controlled automatically in accordance with the delivery pressure of the compressor 9 and the pressure on exhaust side of the main turbine 11 driving the compressor 9. The valve 3 is actuated by an elastic capsule or bellows 4 having a restricted orifice in one end. The chamber 21 is supplied with air through a conduit 32 connected to the air supply pipe 30. Leakage of pressure air from inside the bellows 4 is regulated by a leakoff valve 36 actuated through a lever by a piston 44 subject to the secondary fuel pressure and through a pipe 45 and by a diaphragm 42 connected to an elastic capsule or bellows 38. The underside of the diaphragm 42 is exposed to the delivery pressure of the compressor 9. Its upper side and also the bellows 38 are exposed to atmospheric pressure. The throttle 6 is actuated by a spring-loaded liquid-operated piston 7 under the control of a leak-off valve 12 similar to the valve 36. The valve 12 is actuated through a lever 8 by a diaphragm 25 connected to an elastic bellows 24. The delivery pressure of the compressor 9 has access to the outside of the bellows 24 and to the underside of the diaphragm 25. The upper side of the diaphragm 25 is connected to the outlet of the turbine 11. In the event of failure of the throttle 6, at least a minimum pressure is maintained in the pump outlet by a spring-loaded valve 13. The secondary fuel feed may also be manually controlled by a further valve 14. The latter is actuated by fuel pressure acting on a spring-loaded piston 52 under the control of a manually-operated cock (not shown). A projection 15 on the valve 14 lies in the path of an arm 16 on the rotary valve 3 so that the valve 3 cannot open when the valve 14 is closed. Overspeeding of the turbine 1 and the pump 2 is prevented by a centrifugal governor 17 actuating a further leak-off valve 48 which controls the action of the bellows 4.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE738895X | 1951-10-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB738895A true GB738895A (en) | 1955-10-19 |
Family
ID=20319775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB26321/52A Expired GB738895A (en) | 1951-10-18 | 1952-10-20 | Devices for automatically controlling the secondary fuel supply in jet propulsion and other gas turbine engines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB738895A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2970437A (en) * | 1956-02-28 | 1961-02-07 | Thompson Ramo Wooldridge Inc | High temperature pumping system with variable speed pump and refrigeration by-product |
| US3024624A (en) * | 1958-09-04 | 1962-03-13 | Rolls Royce | Aircraft and turbine operated auxiliary equipment |
| US7647776B1 (en) * | 1986-08-19 | 2010-01-19 | Goodrich Control Systems Limited | Fluid flow control system |
-
1952
- 1952-10-20 GB GB26321/52A patent/GB738895A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2970437A (en) * | 1956-02-28 | 1961-02-07 | Thompson Ramo Wooldridge Inc | High temperature pumping system with variable speed pump and refrigeration by-product |
| US3024624A (en) * | 1958-09-04 | 1962-03-13 | Rolls Royce | Aircraft and turbine operated auxiliary equipment |
| US7647776B1 (en) * | 1986-08-19 | 2010-01-19 | Goodrich Control Systems Limited | Fluid flow control system |
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