GB1221970A - Hydraulic shock-absorbers - Google Patents

Hydraulic shock-absorbers

Info

Publication number
GB1221970A
GB1221970A GB46585/68A GB4658568A GB1221970A GB 1221970 A GB1221970 A GB 1221970A GB 46585/68 A GB46585/68 A GB 46585/68A GB 4658568 A GB4658568 A GB 4658568A GB 1221970 A GB1221970 A GB 1221970A
Authority
GB
United Kingdom
Prior art keywords
valve
piston
passages
closed
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
Application number
GB46585/68A
Inventor
William Henry Lloyd
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.)
Woodhead Manufacturing Co Ltd
Original Assignee
Woodhead Manufacturing 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 Woodhead Manufacturing Co Ltd filed Critical Woodhead Manufacturing Co Ltd
Priority to GB46585/68A priority Critical patent/GB1221970A/en
Priority to NL6914355A priority patent/NL6914355A/xx
Priority to ZA696917*A priority patent/ZA696917B/en
Priority to FR6933253A priority patent/FR2019573A1/fr
Priority to BE739695D priority patent/BE739695A/xx
Priority to AU61691/69A priority patent/AU6169169A/en
Priority to DE19691949589 priority patent/DE1949589A1/en
Publication of GB1221970A publication Critical patent/GB1221970A/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
    • F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
    • F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
    • F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
    • F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
    • F16F9/185—Bitubular units

Landscapes

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

Abstract

1,221,970. Springs. WOODHEAD MFG. CO. Ltd. 1 Oct., 1968, No. 46585/68. Heading F2S. An hydraulic shock absorber has a piston 4, Figs. 1 and 2, which is mounted on a piston rod 13, is reciprocable in a cylinder 1, and has passages 5, 6 therein which connect a chamber X of the cylinder with a chamber Y of the cylinder. An annular reservoir is formed between the cylinder 1 and an outer coaxial member 2, the reservoir being connected to the chamber Y through a valve 23 and passages 30, and being separated into chambers 32, 33 by means of a part annular wall 34 which extends around an arc of 220 degrees. A gap of 140 degrees in the wall 34 forms a connection between the reservoir chambers 32, 33. The passages 5 in the piston 4 are closed by a valve-plate 7 being urged by a spring 8 and the passages 6 are closed by a valveplate 10 being urged by a spring 11 and a nut 12. The piston-rod 13 passes through an end closure disc 14 and a seal 15 which carries a cover 16. The valve 23 is mounted in the cylinder 1, has a bore 24 closed by a disc 25 urged by a spring 26, the disc 25 carrying a valve member 27 which is urged by a spring 27a to close a passage 28 which extends through the valve member 27. In operation rebound loads are provided by the valve 10 whilst compression loads are provided partly by the valve 7 and partly by the valve 27. As the length of the shock absorber is reduced under compression loads, oil passes through the valve 7 and oil displaced by the piston-rod entering the cylinder passes to the reservoir 31, via passages 28, 30. The chamber 33 is maintained full of oil to prevent ingress of air therein and excess oil is passed through the gap in the part-annular wall 34 and into the chamber 32. On return of the piston rod, its volume is recuperated by oil from the reservoir 33 which passes through the valve 25 against the force of the spring 26, oil also passes through the valve 10 on the piston 4. In a modification a shock absorber is of the one-way type and comprises a piston 50, Fig. 3 (not shown), having bores 60 closed by a one-way valve 63; a closure member 56, having passages 61 closed by a one-way valve 64; and a closure member 55, having bores 62 closed by a one-way valve 65.
GB46585/68A 1968-10-01 1968-10-01 Hydraulic shock-absorbers Expired GB1221970A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB46585/68A GB1221970A (en) 1968-10-01 1968-10-01 Hydraulic shock-absorbers
NL6914355A NL6914355A (en) 1968-10-01 1969-09-22
ZA696917*A ZA696917B (en) 1968-10-01 1969-09-30 Hydraulic shock-absorbers
FR6933253A FR2019573A1 (en) 1968-10-01 1969-09-30
BE739695D BE739695A (en) 1968-10-01 1969-10-01
AU61691/69A AU6169169A (en) 1968-10-01 1969-10-01 Hydraulic shock-absorbers
DE19691949589 DE1949589A1 (en) 1968-10-01 1969-10-01 Hydraulic shock absorbers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB46585/68A GB1221970A (en) 1968-10-01 1968-10-01 Hydraulic shock-absorbers

Publications (1)

Publication Number Publication Date
GB1221970A true GB1221970A (en) 1971-02-10

Family

ID=10441833

Family Applications (1)

Application Number Title Priority Date Filing Date
GB46585/68A Expired GB1221970A (en) 1968-10-01 1968-10-01 Hydraulic shock-absorbers

Country Status (7)

Country Link
AU (1) AU6169169A (en)
BE (1) BE739695A (en)
DE (1) DE1949589A1 (en)
FR (1) FR2019573A1 (en)
GB (1) GB1221970A (en)
NL (1) NL6914355A (en)
ZA (1) ZA696917B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5759723Y2 (en) * 1978-04-01 1982-12-20
US4254949A (en) * 1978-06-12 1981-03-10 Brentham Jerry D Leg curl exercising device
DE3437653A1 (en) * 1984-10-13 1986-04-17 Rheinmetall GmbH, 4000 Düsseldorf DAMPING DEVICE FOR A MACHINE WEAPON
JP3009151B2 (en) * 1988-04-04 2000-02-14 株式会社ユニシアジェックス Hydraulic shock absorber

Also Published As

Publication number Publication date
FR2019573A1 (en) 1970-07-03
NL6914355A (en) 1970-04-03
BE739695A (en) 1970-03-16
ZA696917B (en) 1971-05-27
DE1949589A1 (en) 1970-04-09
AU6169169A (en) 1971-04-08

Similar Documents

Publication Publication Date Title
GB1132038A (en) Vibration dampers
GB569347A (en) Improvements in or relating to hydraulic shock absorbers
GB1021877A (en) Improvements in or relating to adjustable hydraulic shock absorbers
GB1250216A (en)
FR1587528A (en)
GB1033810A (en) Improvements relating to vibration dampers
GB1277421A (en) Improvements in or relating to pneumatic springs
GB596706A (en) Improvements in and relating to shock absorbers
GB1221970A (en) Hydraulic shock-absorbers
GB1266596A (en)
GB658139A (en) Shock absorber
GB1363303A (en) Hydraulic shock absolbers
GB1378363A (en) Rams
GB1188453A (en) Level-Regulating Hydro-Pneumatic Suspension Unit, Particularly for Motor Vehicles
GB1411218A (en) Hydraulic stops for shock absorbers
GB613960A (en) Improvements in or relating to hydraulic dampers or shock absorbers
GB1226534A (en)
GB687049A (en) Improvements in or relating to a direct acting hydraulic shock absorber
GB1440205A (en) Shock absorbers
ES293458A1 (en) Sealing ring for pistons slidably mounted in cylinders of hydraulic mechanisms
GB496059A (en) Improvements in shock-absorbers
GB753092A (en) Improvements in or relating to motor vehicle shock absorbers
GB931231A (en) Two tube shock absorber
GB1052680A (en)
GB1151738A (en) Improvements in Oleopneumatic Pressure Transformers