GB791620A - Improvements in or relating to fluid pressure operated actuators for flying control surfaces and the like - Google Patents
Improvements in or relating to fluid pressure operated actuators for flying control surfaces and the likeInfo
- Publication number
- GB791620A GB791620A GB28952/54A GB2895254A GB791620A GB 791620 A GB791620 A GB 791620A GB 28952/54 A GB28952/54 A GB 28952/54A GB 2895254 A GB2895254 A GB 2895254A GB 791620 A GB791620 A GB 791620A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- jack
- valve
- cylinder
- pressure
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C13/00—Control systems or transmitting systems for actuating flying-control surfaces, lift-increasing flaps, air brakes, or spoilers
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transmission Devices (AREA)
- Braking Arrangements (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
791,620. Hydraulic jacks; fluid-pressure servomotor-control systems. BRITISH MESSIER, Ltd. Sept. 30, 1955 [Oct. 7, 1954], No. 28952/54. Classes 69 (2) and 135. [Also in Group XXVIII] An hydraulic jack for controlling an allmoving aircraft tailplane has screw means associated with the jack piston which are braked in order to lock the piston in any assumed position relative to its cylinder, and is provided with means for progressively decreasing the braking on application of pressure to the jack. A jack piston 18 is secured to the airframe and a jack cylinder 15 is provided in a casing 11 pivotally connected to the tailplane 13. A rotatable rod 27 having a screw connection with the piston is formed with a head 30 forming one part of a friction clutch, the other part 31 of which is non-rotatable and is urged into engagement with the head 30 by a spring 38, being disengaged by fluid pressure acting on the annular face of a piston 37 disposed in a clutch control cylinder 36. On manually moving a distributing valve 44 to either side of the neutral position shown, liquid is supplied from an inlet 67 to one side or the other of the jack piston 18, and also, through a duct 65 to the clutch control cylinder 36 to act on the piston 37. A bleed passage 39 passes from the left-hand chamber of the cylinder 36, through the piston to the right-hand chamber which is connected to exhaust through a fixed restriction 81. The left-hand chamber is also connected through a fixed restriction 85 to a port 82 of a clutch control valve 70, and thence around a reduced part of the valve to an exhaust duct 78. As pressure builds up on either side of the jack piston 18 it acts through a duct 76 or 77 on an extension 74 or a land 72 of the valve 70 and moves it to the right against the pressure of a spring 71. Port 82 is thus gradually closed and pressure builds up in the clutch control cylinder 36 to disengage the clutch. The housing of valve 44 is provided in the moving casing 11 thus producing a follow-up action for re-centring the valve.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB28952/54A GB791620A (en) | 1954-10-07 | 1954-10-07 | Improvements in or relating to fluid pressure operated actuators for flying control surfaces and the like |
ES0224235A ES224235A1 (en) | 1954-10-07 | 1955-09-30 | Improvements in or relating to fluid pressure operated actuators for flying control surfaces and the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB28952/54A GB791620A (en) | 1954-10-07 | 1954-10-07 | Improvements in or relating to fluid pressure operated actuators for flying control surfaces and the like |
Publications (1)
Publication Number | Publication Date |
---|---|
GB791620A true GB791620A (en) | 1958-03-05 |
Family
ID=10283849
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB28952/54A Expired GB791620A (en) | 1954-10-07 | 1954-10-07 | Improvements in or relating to fluid pressure operated actuators for flying control surfaces and the like |
Country Status (2)
Country | Link |
---|---|
ES (1) | ES224235A1 (en) |
GB (1) | GB791620A (en) |
-
1954
- 1954-10-07 GB GB28952/54A patent/GB791620A/en not_active Expired
-
1955
- 1955-09-30 ES ES0224235A patent/ES224235A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES224235A1 (en) | 1956-01-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB713311A (en) | Improvements in or relating to servo-operated master cylinders | |
US2273171A (en) | Remote control apparatus | |
GB773767A (en) | Improved servo unit for fluid-pressure assisted hydraulic brake mechanism | |
GB814502A (en) | Fluid pressure servomotor, particularly for braking systems | |
US2413380A (en) | Fluid pressure motor | |
GB655552A (en) | Fluid pressure control device | |
US2961831A (en) | Play take-up device for hydraulic control system | |
GB791620A (en) | Improvements in or relating to fluid pressure operated actuators for flying control surfaces and the like | |
GB1027175A (en) | Aircraft | |
GB773481A (en) | Pressure regulating device particularly for vehicle brakes | |
GB685339A (en) | Improvements in or relating to fluid-pressure servo braking systems for vehicles | |
US2870745A (en) | Variable boost servo-assisting system | |
GB1383779A (en) | Hydraulic control system | |
GB730561A (en) | Improvements in or relating to hydraulic jacks | |
GB902652A (en) | Fluid control valve actuating structure | |
US3058701A (en) | Hydraulic servo flying controls for aircraft | |
GB752747A (en) | Improvements in or relating to servo-operated hydraulic braking systems | |
US2513888A (en) | Follow-up type pressure fluid servomotor | |
GB590897A (en) | Improvements in volume compensating devices for hydraulic control systems and the like | |
GB629884A (en) | Improvements in hydraulic control systems | |
GB562144A (en) | Improvements in or relating to fluid pressure systems | |
GB767677A (en) | Improvements in or relating to servo and directly operated hydraulic brake systems | |
GB779122A (en) | Improvements in or relating to power systems and in particular power steering systems for motor vehicles | |
GB796496A (en) | Improvements in or relating to fluid pressure servo mechanisms | |
GB733335A (en) | Improvements in or relating to hydraulic pressure-regulating apparatus |