GB792868A - Improvements in or relating to hydraulic shock absorbers - Google Patents

Improvements in or relating to hydraulic shock absorbers

Info

Publication number
GB792868A
GB792868A GB256855A GB256855A GB792868A GB 792868 A GB792868 A GB 792868A GB 256855 A GB256855 A GB 256855A GB 256855 A GB256855 A GB 256855A GB 792868 A GB792868 A GB 792868A
Authority
GB
United Kingdom
Prior art keywords
valve
chamber
seating
passages
bore
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
GB256855A
Inventor
William Armstrong
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.)
Armstrong Patents Co Ltd
Original Assignee
Armstrong Patents Co Ltd
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 Armstrong Patents Co Ltd filed Critical Armstrong Patents Co Ltd
Priority to GB256855A priority Critical patent/GB792868A/en
Priority to FR1156302D priority patent/FR1156302A/en
Publication of GB792868A publication Critical patent/GB792868A/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
    • F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
    • 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
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages

Landscapes

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

Abstract

792,868. Fluid-actuated valves. ARMSTRONG PATENTS CO., Ltd. Oct. 19, 1955 [Jan. 28, 1955], No. 2568/55. Class 135. [Also in Group XXXII] A double-acting valve assembly for hydraulic shock absorbers comprises a pair of spaced passages 6, 7 leading into a valve chamber 3 on opposed sides of a fixed valve seating 8a, a sheath member 10 mounted in the valve chamber and externally shaped to permit flow of fluid from one of the passages to the seating, a valve member 11 slidably mounted within the sheath member and movable away from its seating by resilient mechanical pressure on the occurrence of a predetermined excess of fluid pressure on either side of the valve seating and means associated with the valve member to provide an adjustable leakage path through the valve member. The valve seating 8a is formed a member 8 screwed into the chamber 3 and provided with a sealing ring 9 and an annular channel 8e open to the passage 7 and through radial passages 8f to a chamber 8b. The valve member 11 has a cylindrical portion slidable in the sheath member 10 and a conical portion co-operating with the seating 8a. The conical portion 11a has a bore 11c opening into the chamber 8b and also connected to radial bores 11d. The smaller end of a tapered peg 12 integral with an adjusting screw 12b cooperates with the bore 11c to limit the leakage path through the valve member. This path is not completely closed when the peg contacts the end wall 11e of the bore 11c. The sheath member 10 is provided with cut-away parts 10b, 10c to connect the passage 6 to the valve seating and is guided by the residual part 10d. The member 10 is screwed into the chamber 3 and has a chamber 10e housing a valve loading spring 16. The spring abuts one or more washers 17 arranged on a projection 18a on a screw plug 18. In place of the washers 17 and the projection, a separate adjusting screw plug may be provided. The spring chamber 10e is open to the oil reservoir at the ends of pistons chambers 4, 5 remote from the passages 6, 7 through passages 10g, 19.
GB256855A 1955-01-28 1955-01-28 Improvements in or relating to hydraulic shock absorbers Expired GB792868A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB256855A GB792868A (en) 1955-01-28 1955-01-28 Improvements in or relating to hydraulic shock absorbers
FR1156302D FR1156302A (en) 1955-01-28 1955-02-23 Improvements to hydraulic shock absorbers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB256855A GB792868A (en) 1955-01-28 1955-01-28 Improvements in or relating to hydraulic shock absorbers

Publications (1)

Publication Number Publication Date
GB792868A true GB792868A (en) 1958-04-02

Family

ID=9741864

Family Applications (1)

Application Number Title Priority Date Filing Date
GB256855A Expired GB792868A (en) 1955-01-28 1955-01-28 Improvements in or relating to hydraulic shock absorbers

Country Status (2)

Country Link
FR (1) FR1156302A (en)
GB (1) GB792868A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4744444A (en) * 1978-04-12 1988-05-17 Craig L. Gillingham Shock absorber
US5178240A (en) * 1985-05-23 1993-01-12 Enidine Incorporated Adjustable double-acting damper
EP0542282A1 (en) * 1991-11-12 1993-05-19 Industrieanlagen-Betriebsgesellschaft M.B.H. Vibration damper
US10167920B2 (en) * 2015-12-10 2019-01-01 Viking Performance, Inc. Adjustable damping curve shock absorber

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4744444A (en) * 1978-04-12 1988-05-17 Craig L. Gillingham Shock absorber
US5178240A (en) * 1985-05-23 1993-01-12 Enidine Incorporated Adjustable double-acting damper
EP0542282A1 (en) * 1991-11-12 1993-05-19 Industrieanlagen-Betriebsgesellschaft M.B.H. Vibration damper
WO1993010371A1 (en) * 1991-11-12 1993-05-27 Industrieanlagen-Betriebsgesellschaft Mbh Vibration damper
US10167920B2 (en) * 2015-12-10 2019-01-01 Viking Performance, Inc. Adjustable damping curve shock absorber
US10940732B2 (en) 2015-12-10 2021-03-09 Viking Performance, Inc. Adjustable damping curve shock absorber

Also Published As

Publication number Publication date
FR1156302A (en) 1958-05-14

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