GB806824A - Improvements relating to liquid springs - Google Patents

Improvements relating to liquid springs

Info

Publication number
GB806824A
GB806824A GB6088/57A GB608857A GB806824A GB 806824 A GB806824 A GB 806824A GB 6088/57 A GB6088/57 A GB 6088/57A GB 608857 A GB608857 A GB 608857A GB 806824 A GB806824 A GB 806824A
Authority
GB
United Kingdom
Prior art keywords
plunger
chamber
spring
liquid
predetermined position
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
GB6088/57A
Inventor
Erwin Horst Hartel
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.)
Cleveland Pneumatic Tool Co
Original Assignee
Cleveland Pneumatic Tool Co
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
Priority to DEC14182A priority Critical patent/DE1112904B/en
Priority to FR1171409D priority patent/FR1171409A/en
Application filed by Cleveland Pneumatic Tool Co filed Critical Cleveland Pneumatic Tool Co
Priority to GB6088/57A priority patent/GB806824A/en
Publication of GB806824A publication Critical patent/GB806824A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/48—Arrangements for providing different damping effects at different parts of the stroke
    • F16F9/486—Arrangements for providing different damping effects at different parts of the stroke comprising a pin or stem co-operating with an aperture, e.g. a cylinder-mounted stem co-operating with a hollow piston rod
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C25/00—Alighting gear
    • B64C25/32—Alighting gear characterised by elements which contact the ground or similar surface 
    • B64C25/58—Arrangements or adaptations of shock-absorbers or springs
    • B64C25/60—Oleo legs

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

806,824. Liquid springs. CLEVELAND PNEUMATIC TOOL CO. Feb. 22, 1957, No. 6088/57. Class 108(3) A liquid spring comprises a main chamber 17 and one 18 (as shown) or more, additional chambers filled with liquid, a plunger 12, and plunger-operated valve means 23 arranged to open the chamber 18 at a predetermined position during the stroke of the plunger in order to change the rate of spring at the predetermined position. In Fig. 1, a fluted stem 25 rigid with the plunger 12 is adapted to engage and lift off its seat against the action of a spring 26, a ball valve 23, at the predetermined position of the plunger 12. The stroke of the plunger 12 is limited by engagement of a damping head 31 integral with the plunger, with a fixed skirt 16. Filling of the spring is effected through a plug 35 in conjunction with a drain plug 36. In Fig. 4, the additional chamber is in the form of an annular chamber 54 surrounding the main chamber 41. Valves 64 in the wall of the main chamber 41 are. normally maintained in closed position by springs 66, but carry stems 68 which project into the chamber 41 and are adapted to be engaged by a camming surface 69 on the piston 70. Specification 560,047 is referred to.
GB6088/57A 1957-01-02 1957-02-22 Improvements relating to liquid springs Expired GB806824A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DEC14182A DE1112904B (en) 1957-01-02 1957-01-02 Fluid spring for the landing gear of an airplane
FR1171409D FR1171409A (en) 1957-02-22 1957-01-15 Advanced multi-stage hydraulic elastic device
GB6088/57A GB806824A (en) 1957-02-22 1957-02-22 Improvements relating to liquid springs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6088/57A GB806824A (en) 1957-02-22 1957-02-22 Improvements relating to liquid springs

Publications (1)

Publication Number Publication Date
GB806824A true GB806824A (en) 1958-12-31

Family

ID=9808157

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6088/57A Expired GB806824A (en) 1957-01-02 1957-02-22 Improvements relating to liquid springs

Country Status (2)

Country Link
FR (1) FR1171409A (en)
GB (1) GB806824A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1185422B (en) * 1962-05-14 1965-01-14 Stabilus Ind Und Handelsgesell Fluid pen
FR2467719A1 (en) * 1979-10-17 1981-04-30 Perlini Roberto FLUID SUSPENSION ASSEMBLY, IN PARTICULAR FOR MOTOR VEHICLES
EP3489137A1 (en) * 2017-11-27 2019-05-29 Airbus Operations Limited Spring assembly
US11851169B2 (en) * 2019-07-26 2023-12-26 Safran Landing Systems Shock absorbing strut

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3703848A (en) * 1970-09-14 1972-11-28 William L Brown Fluid pressure engine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1185422B (en) * 1962-05-14 1965-01-14 Stabilus Ind Und Handelsgesell Fluid pen
FR2467719A1 (en) * 1979-10-17 1981-04-30 Perlini Roberto FLUID SUSPENSION ASSEMBLY, IN PARTICULAR FOR MOTOR VEHICLES
US4915364A (en) * 1979-10-17 1990-04-10 Roberto Perlini Fluid suspension unit, particularly for heavy motor vehicles
EP3489137A1 (en) * 2017-11-27 2019-05-29 Airbus Operations Limited Spring assembly
US11111008B2 (en) 2017-11-27 2021-09-07 Airbus Operations Limited Aircraft landing gear spring assembly
US11851169B2 (en) * 2019-07-26 2023-12-26 Safran Landing Systems Shock absorbing strut

Also Published As

Publication number Publication date
FR1171409A (en) 1959-01-26

Similar Documents

Publication Publication Date Title
GB915063A (en) Improvements in fluid flow control valves
SE337998B (en)
GB913091A (en) Improvements in pneumatically operated valves
GB1235225A (en) Hydraulic valve tappets
GB806824A (en) Improvements relating to liquid springs
GB901089A (en) Blasting device
GB828572A (en) Elastic pneumatic return or damping device
GB1228827A (en)
GB900383A (en) Improvements in or relating to auxiliary hoists
GB846271A (en) Improvements in or relating to resilient valves for fluids under pressure
GB759668A (en) Improvements in beer taps
GB591843A (en) Improvements relating to check valves
GB812136A (en) Drain valve
GB724171A (en) Improvements in or relating to hand-operated valves
GB784974A (en) Improvements relating to valve gear
GB653286A (en) Improvements in or relating to hydraulic shock absorbers
GB731863A (en) Gas-pressure relief valves
GB971505A (en) Improvements in or relating to pneumatic control valves
GB834003A (en) Improvements in pressure relief valves
GB1259952A (en) Valves for controlling flow of fluid into a container
GB706142A (en) Improvements in or relating to fluid control valves
GB1327748A (en) Steam trap
GB161635A (en) Improvements in or relating to valves for use in connection with reservoir pens
GB637658A (en) Cock with rotary plug
GB891100A (en) Improvements in fluid-flow control gate valves