GB563466A - Improvements in or relating to hydraulic controls for aircraft undercarriages - Google Patents
Improvements in or relating to hydraulic controls for aircraft undercarriagesInfo
- Publication number
- GB563466A GB563466A GB1668641A GB1668641A GB563466A GB 563466 A GB563466 A GB 563466A GB 1668641 A GB1668641 A GB 1668641A GB 1668641 A GB1668641 A GB 1668641A GB 563466 A GB563466 A GB 563466A
- Authority
- GB
- United Kingdom
- Prior art keywords
- casting
- jack
- pivoted
- pipe
- piston
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
563,466. Aircraft undercarriages. RUBERY OWEN MESSIER, Ltd., and ORLOFF, G. Dec. 26, 1941, No. 16686. [Class 4] A wheel-carrying member pivoted to a deformable frame incorporating a shock absorber connected to the airframe is retractable by a hydraulic jack against the resistance of spring returning means, the pressure fluid for the jack first releasing a locking device, for holding the parts in their extended position, and then opening a valve to permit the fluid to flow to the jack. A telescopic oleo-pneumatic shock absorber 11 is pivoted to the airframe at 12 and a casting 19 at the lower end is connected to the airframe by a radius link 13 which is roughly trapezoidal in plan. A swivelling wheel fork 25 is mounted in another casting 26 pivoted to the casting 19 at 27 and is normally locked in the extended position by a catch 48 pivoted to the casting 19 and engaging a transverse pin 50 on the casting 26. Rubber cables 39 urge the parts into the extended position. A jack 31 passing through a hole in the link 13 is connected between a bracket 44 on the shock-absorber and an eye 30 on the casting 26. Pressure fluid from a pump is supplied through a single pipe 53 and entering a small cylinder 45 depresses a piston 46, Fig. 4, having a piston rod 47 connected to the latch 48. Towards the end of the piston stroke a valve 58 on the piston is unseated as its stem 60 comes into contact with a cross-pin 62 and fluid can flow through the valve to a pipe 54 leading to the jack. A pipe 56 enables the undercarriage to be positively extended in an emergency but normally the cables 39 extend the under carriage when the pressure in the pipe 53 is released. The swivelling motion of the wheel is controlled by a shimmy-damper 29 as described in Specification 549,772, [Group XXXII].
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1668641A GB563466A (en) | 1941-12-26 | 1941-12-26 | Improvements in or relating to hydraulic controls for aircraft undercarriages |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1668641A GB563466A (en) | 1941-12-26 | 1941-12-26 | Improvements in or relating to hydraulic controls for aircraft undercarriages |
Publications (1)
Publication Number | Publication Date |
---|---|
GB563466A true GB563466A (en) | 1944-08-16 |
Family
ID=10081810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1668641A Expired GB563466A (en) | 1941-12-26 | 1941-12-26 | Improvements in or relating to hydraulic controls for aircraft undercarriages |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB563466A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104482105A (en) * | 2014-12-30 | 2015-04-01 | 哈尔滨通航科技开发有限公司 | Air inflation device for high-pressure chamber and low-pressure chamber of buffering strut of aircraft landing gear |
-
1941
- 1941-12-26 GB GB1668641A patent/GB563466A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104482105A (en) * | 2014-12-30 | 2015-04-01 | 哈尔滨通航科技开发有限公司 | Air inflation device for high-pressure chamber and low-pressure chamber of buffering strut of aircraft landing gear |
CN104482105B (en) * | 2014-12-30 | 2016-03-09 | 哈尔滨通航科技开发有限公司 | Undercarriage damper leg high low pressure chamber charger |
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