GB1125104A - Improvements relating to variable rate dampers - Google Patents

Improvements relating to variable rate dampers

Info

Publication number
GB1125104A
GB1125104A GB4344065A GB4344065A GB1125104A GB 1125104 A GB1125104 A GB 1125104A GB 4344065 A GB4344065 A GB 4344065A GB 4344065 A GB4344065 A GB 4344065A GB 1125104 A GB1125104 A GB 1125104A
Authority
GB
United Kingdom
Prior art keywords
cylinder
piston
oct
bleed
telescopic hydraulic
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
GB4344065A
Inventor
Arthur Ronald Pocklington
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.)
British Railways Board
Original Assignee
British Railways Board
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 British Railways Board filed Critical British Railways Board
Priority to GB4344065A priority Critical patent/GB1125104A/en
Publication of GB1125104A publication Critical patent/GB1125104A/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

Landscapes

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

Abstract

1,125,104. Telescopic hydraulic shock-absorbers. BRITISH RAILWAYS BOARD. 10 Oct., 1966 [13 Oct., 1965], No. 43440/65. Heading F2S. A telescopic hydraulic shook-absorber comprises a piston 2 which has compression and rebound blow-off valves and which works in a cylinder 1 surrounded by two concentric cylinders 6, 7 which form two annular chambers 4, 5 the outer chamber providing a displacement and make-up reservoir which communicates with the lower chamber of the cylinder 1 through a foot valve 9 and the inner chamber 4 communicating with the cylinder 1 through an unrestricted upper aperture 10 and through a vertical series of bleed holes 11-14 in the wall of the cylinder 1. The number, size, and relative positions of the bleed holes can be varied to alter the shock-absorber damping characteristics. Also the lowest bleed hole 14, which is never closed by the piston 2, can be repositioned, e.g. in the piston itself. The valve block 9 may also be provided with a small bleed hole.
GB4344065A 1965-10-13 1965-10-13 Improvements relating to variable rate dampers Expired GB1125104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4344065A GB1125104A (en) 1965-10-13 1965-10-13 Improvements relating to variable rate dampers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4344065A GB1125104A (en) 1965-10-13 1965-10-13 Improvements relating to variable rate dampers

Publications (1)

Publication Number Publication Date
GB1125104A true GB1125104A (en) 1968-08-28

Family

ID=10428767

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4344065A Expired GB1125104A (en) 1965-10-13 1965-10-13 Improvements relating to variable rate dampers

Country Status (1)

Country Link
GB (1) GB1125104A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3682102A (en) * 1969-05-09 1972-08-08 British Railways Board Dampened railway truck
EP0030455A1 (en) * 1979-12-04 1981-06-17 Jonas Woodhead Limited Displacement conscious dampers
FR2569799A1 (en) * 1984-09-05 1986-03-07 Stabilus Gmbh PNEUMATIC OR OLEOPNEUMATIC TENSION SPRING
GB2241044A (en) * 1990-01-20 1991-08-21 Atsugi Unisia Corp Hydraulic shock absorbers
US5246092A (en) * 1990-01-20 1993-09-21 Atsugi Unisia Corporation Vehicle hydraulic shock absorber having low friction seal
US5522486A (en) * 1993-11-13 1996-06-04 Delphi France Automotive Systems Damping valve for shock absorber
EP1437524A1 (en) * 2003-01-11 2004-07-14 Alfit Aktiengesellschaft Apparatus for damping and braking moveable parts of furniture
US7963377B2 (en) 2005-04-06 2011-06-21 GM Global Technology Operations LLC Dual stage dampers for vehicles suspensions
CN107339002A (en) * 2017-08-23 2017-11-10 南京丹枫机械科技有限公司 Varying index viscous damper

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3682102A (en) * 1969-05-09 1972-08-08 British Railways Board Dampened railway truck
EP0030455A1 (en) * 1979-12-04 1981-06-17 Jonas Woodhead Limited Displacement conscious dampers
FR2479386A1 (en) * 1979-12-04 1981-10-02 Woodhead Ltd Jonas HYDRAULIC SHOCK ABSORBER UNDER PRESSURE
FR2569799A1 (en) * 1984-09-05 1986-03-07 Stabilus Gmbh PNEUMATIC OR OLEOPNEUMATIC TENSION SPRING
US4647026A (en) * 1984-09-05 1987-03-03 Stabilus Gmbh Pneumatic or hydropneumatic tension spring
GB2241044A (en) * 1990-01-20 1991-08-21 Atsugi Unisia Corp Hydraulic shock absorbers
US5246092A (en) * 1990-01-20 1993-09-21 Atsugi Unisia Corporation Vehicle hydraulic shock absorber having low friction seal
GB2241044B (en) * 1990-01-20 1993-11-10 Atsugi Unisia Corp Improvements in and relating to shock absorbers
US5522486A (en) * 1993-11-13 1996-06-04 Delphi France Automotive Systems Damping valve for shock absorber
EP1437524A1 (en) * 2003-01-11 2004-07-14 Alfit Aktiengesellschaft Apparatus for damping and braking moveable parts of furniture
US7963377B2 (en) 2005-04-06 2011-06-21 GM Global Technology Operations LLC Dual stage dampers for vehicles suspensions
DE102006015716B4 (en) * 2005-04-06 2014-07-10 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Double-stage damper for vehicle suspensions
CN107339002A (en) * 2017-08-23 2017-11-10 南京丹枫机械科技有限公司 Varying index viscous damper
CN107339002B (en) * 2017-08-23 2022-09-06 南京丹枫机械科技有限公司 Variable index viscous damper

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