GB1373553A - Twin-jack controlled system - Google Patents

Twin-jack controlled system

Info

Publication number
GB1373553A
GB1373553A GB102372A GB102372A GB1373553A GB 1373553 A GB1373553 A GB 1373553A GB 102372 A GB102372 A GB 102372A GB 102372 A GB102372 A GB 102372A GB 1373553 A GB1373553 A GB 1373553A
Authority
GB
United Kingdom
Prior art keywords
jacks
flaps
pipe
jack
flap
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
GB102372A
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.)
RECH APPLIQUEES SOC ET
Original Assignee
RECH APPLIQUEES SOC ET
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 RECH APPLIQUEES SOC ET filed Critical RECH APPLIQUEES SOC ET
Publication of GB1373553A publication Critical patent/GB1373553A/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
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/06—Varying effective area of jet pipe or nozzle
    • F02K1/12—Varying effective area of jet pipe or nozzle by means of pivoted flaps
    • F02K1/1223—Varying effective area of jet pipe or nozzle by means of pivoted flaps of two series of flaps, the upstream series having its flaps hinged at their upstream ends on a fixed structure and the downstream series having its flaps hinged at their upstream ends on the downstream ends of the flaps of the upstream series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/12—Characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder type
    • F15B15/125—Characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder type of the curved-cylinder type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Supports For Pipes And Cables (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
  • Transmission Devices (AREA)

Abstract

1373553 Jacks SOC D' ETUDES ET DE RECHERCHES APPLIQUEES 10 Jan 1972 [8 Jan 1971] 1023/72 Heading F1F A fluid operated jack system for controlling flaps 5, 6 at the end of a jet pipe 1 comprises jacks 10, 11 for moving the flaps selectively about their hinges 4, 7, the cylinders, pistons and piston rods of the jacks all having a toroidal shape. The jacks 10, 11 are integrally formed with a bracket 8 hinged at 4 to a fixed extension 3 of pipe 1, the flap 5 also being integral with bracket 8. The piston rod 15 of jack 10 is fixed to the extension 3, and the rod 16 of jack 11 is fixed to flap 6 which is hinged at 7 to the flap 5. The axes of rods 15, 16 form parts of circles having their centres at the hinge points 4 and 7 respectively. Thus by selective pressurization of jacks 10, 11 the inclination of the flaps can be varied to thus vary the cross-section of pipe 1. The jacks 10, 11 can be located on opposite sides of hinge 4 Fig. 3 (not shown) and there is also described a system in which the jacks 10, 11 operate pairs of flaps 5 and 6, Figs. 4 to 7 (not shown) the arrangement being repeated round the pipe circumference to form an essentially circular array of flaps.
GB102372A 1971-01-08 1972-01-10 Twin-jack controlled system Expired GB1373553A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7100528A FR2123115B1 (en) 1971-01-08 1971-01-08

Publications (1)

Publication Number Publication Date
GB1373553A true GB1373553A (en) 1974-11-13

Family

ID=9070009

Family Applications (1)

Application Number Title Priority Date Filing Date
GB102372A Expired GB1373553A (en) 1971-01-08 1972-01-10 Twin-jack controlled system

Country Status (4)

Country Link
US (1) US3739987A (en)
DE (1) DE2200656A1 (en)
FR (1) FR2123115B1 (en)
GB (1) GB1373553A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000611A (en) * 1975-07-01 1977-01-04 General Electric Company Variable area, load balancing nozzle
FR2714422A1 (en) * 1983-01-13 1995-06-30 Snecma Convergent-divergent nozzle, particularly for jet engines

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB538168A (en) * 1939-01-19 1941-07-23 Ganz & Company Ltd Improvements in control devices, especially suitable for controlling internal combustion engines
US2649077A (en) * 1951-07-30 1953-08-18 North American Aviation Inc Piston assembly for oscillatory hydraulic actuators
US2984068A (en) * 1958-06-30 1961-05-16 Orenda Engines Ltd Propulsive nozzle system for reaction propulsion units
GB1253071A (en) * 1968-09-14 1971-11-10

Also Published As

Publication number Publication date
US3739987A (en) 1973-06-19
FR2123115A1 (en) 1972-09-08
DE2200656A1 (en) 1973-10-31
FR2123115B1 (en) 1975-01-17

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees