GB929513A - Improvements in aircraft propulsion - Google Patents
Improvements in aircraft propulsionInfo
- Publication number
- GB929513A GB929513A GB15924/61A GB1592461A GB929513A GB 929513 A GB929513 A GB 929513A GB 15924/61 A GB15924/61 A GB 15924/61A GB 1592461 A GB1592461 A GB 1592461A GB 929513 A GB929513 A GB 929513A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bellows
- mach
- pressure
- nozzles
- valve
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
- F02C7/057—Control or regulation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Fluid Pressure (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
929,513. Jet-propulsion plant air-intake. H. M. HOBSON Ltd. April 3, 1962 [May 2, 1961], No. 15924/61. Class 110 (3). [Also in Group XXIX] An adjustable centre body 30 of the air intake of an aircraft jet-propulsion engine is operated by servo pistons 31 to maintain a Pi ratio -, where Pi is the inlet pressure imme- Pc diately behind the normal shock wave and Pc is the pressure immediately behind the oblique shock wave, at a value dependent upon the Mach No. Mach. No. is measured by a device 36 subject internally to static ambient pressure Po and containing an evacuated bellows 7 and a bellows 3 subject internally to a pressure P P such that the ratio - is proportional to Mach. Po No. Levers 2, 6 interconnected by a movable fulcrum 5 and coacting with nozzles 1, 8 are actuated by the bellows 3, 7 respectively, and the nozzles control a servo piston 28 which adjusts the fulcrum 5 in such manner that the position of the servo piston is indicative of Mach. No. A valve 27 is actuated by the servo piston 28 so that a change of Mach. No. results in deflection of a diaphragm 24 which, through a valve 20, causes movement of a servo piston 42 having a valve 25 for balancing the effect on the diaphragm of the valve 27 and having a connection with a movable fulcrum 17 for a pair of levers 45, 46 controlling nozzles 16, 19 and acted upon by an evacuated bellows 43 and a bellows 44 subject internally to the pressure Pi. Externally, the bellows 43, 44 are subject to the pressure Pc. The nozzles 16, 19 control a servo piston 14 which, through a lever 10 operates valves 32, 33 controlling the servo pistons 31. The upper end of the lever 10 is normally secured by a latch 12 but can be operated by the pilot in emergency.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB15924/61A GB929513A (en) | 1961-05-02 | 1961-05-02 | Improvements in aircraft propulsion |
DEH45472A DE1202647B (en) | 1961-05-02 | 1962-04-13 | Control system for a jet engine |
FR895035A FR1319940A (en) | 1961-05-02 | 1962-04-19 | Air Intake Control System for Jet Aircraft Engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB15924/61A GB929513A (en) | 1961-05-02 | 1961-05-02 | Improvements in aircraft propulsion |
Publications (1)
Publication Number | Publication Date |
---|---|
GB929513A true GB929513A (en) | 1963-06-26 |
Family
ID=10068002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB15924/61A Expired GB929513A (en) | 1961-05-02 | 1961-05-02 | Improvements in aircraft propulsion |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1202647B (en) |
FR (1) | FR1319940A (en) |
GB (1) | GB929513A (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1281852B (en) * | 1967-03-08 | 1968-10-31 | Lucas Industries Ltd | Device for determining the deviation of a shock wave from its nominal position in a current |
GB1190774A (en) * | 1967-04-05 | 1970-05-06 | Rolls Royce | Improvements relating to the Silencing of Gas Turbine Engines |
US6209821B1 (en) | 1999-09-14 | 2001-04-03 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Apparatus and method for measuring air temperature ahead of an aircraft for controlling a variable inlet/engine assembly |
CN101975122B (en) * | 2010-11-04 | 2013-03-13 | 北京动力机械研究所 | Stabilized knocking engine with magnetic fluid energy bypath system |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB847286A (en) * | 1957-12-17 | 1960-09-07 | Hobson Ltd H M | Improvements in or relating to air intakes |
-
1961
- 1961-05-02 GB GB15924/61A patent/GB929513A/en not_active Expired
-
1962
- 1962-04-13 DE DEH45472A patent/DE1202647B/en active Pending
- 1962-04-19 FR FR895035A patent/FR1319940A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1319940A (en) | 1963-03-01 |
DE1202647B (en) | 1965-10-07 |
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