GB929513A - Improvements in aircraft propulsion - Google Patents

Improvements in aircraft propulsion

Info

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
Application number
GB15924/61A
Inventor
William Donald Mccourty
Eric Williams
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HM Hobson Ltd
Original Assignee
HM Hobson Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HM Hobson Ltd filed Critical HM Hobson Ltd
Priority to GB15924/61A priority Critical patent/GB929513A/en
Priority to DEH45472A priority patent/DE1202647B/en
Priority to FR895035A priority patent/FR1319940A/en
Publication of GB929513A publication Critical patent/GB929513A/en
Expired legal-status Critical Current

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.
GB15924/61A 1961-05-02 1961-05-02 Improvements in aircraft propulsion Expired GB929513A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
FR1319940A (en) 1963-03-01
DE1202647B (en) 1965-10-07

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