GB541219A - Improvements in emergency devices for hydraulic control systems - Google Patents
Improvements in emergency devices for hydraulic control systemsInfo
- Publication number
- GB541219A GB541219A GB9577/40A GB957740A GB541219A GB 541219 A GB541219 A GB 541219A GB 9577/40 A GB9577/40 A GB 9577/40A GB 957740 A GB957740 A GB 957740A GB 541219 A GB541219 A GB 541219A
- Authority
- GB
- United Kingdom
- Prior art keywords
- connection
- valve
- acting
- piston
- cylinder
- 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
- B64C25/00—Alighting gear
- B64C25/02—Undercarriages
- B64C25/08—Undercarriages non-fixed, e.g. jettisonable
- B64C25/10—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like
- B64C25/18—Operating mechanisms
- B64C25/22—Operating mechanisms fluid
-
- 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
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/004—Fluid pressure supply failure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
541,219. Hydraulic controls. SOC. OLAER, and MERCIER, J. May 31, 1940, No. 9577. Convention date, June 2, 1939. [Class 69 (ii)] A safety device for use in connection with a single-acting or double-acting jack such as are used for controlling flaps, undercarriages &c. of aircraft comprises an emergency pressure conduit 32 which can be connected by a cock 33 to a source of pressure and then actuates a distributing valve 23 and moves it to the right thus cutting off connection between the normal pipes 24, 25 and the cylinder 36 in which the piston 21 works. The piston 21 is then moved in the direction of the arrow f<SP>1</SP> so as to move the operated part to a safe position, e, s to lower the undercarriage of an aeroplane. This is effected by connection of the pressure fluid to an inlet port 28, and by the connection of the port 29 of the cylinder to a pipe 25 leading to exhaust. In a modification the invention is applied to a single-acting jack. The slide valve 23 may be replaced by a rotary or other valve. Specification 460,316, [Group XXXIII], is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR541219X | 1939-06-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB541219A true GB541219A (en) | 1941-11-18 |
Family
ID=8929954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9577/40A Expired GB541219A (en) | 1939-06-02 | 1940-05-31 | Improvements in emergency devices for hydraulic control systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB541219A (en) |
-
1940
- 1940-05-31 GB GB9577/40A patent/GB541219A/en not_active Expired
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