GB694544A - Hydraulic shock absorber of the piston type - Google Patents

Hydraulic shock absorber of the piston type

Info

Publication number
GB694544A
GB694544A GB21728/51A GB2172851A GB694544A GB 694544 A GB694544 A GB 694544A GB 21728/51 A GB21728/51 A GB 21728/51A GB 2172851 A GB2172851 A GB 2172851A GB 694544 A GB694544 A GB 694544A
Authority
GB
United Kingdom
Prior art keywords
valve
reservoir
adjustable
piston
valves
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
GB21728/51A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB694544A publication Critical patent/GB694544A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/08—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring
    • B60G15/12—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring and fluid damper
    • 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
    • F16F9/3207—Constructional features
    • F16F9/3235—Constructional features of cylinders
    • 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
    • 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
    • F16F9/38—Covers for protection or appearance
    • 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
    • F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
    • F16F9/46—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction allowing control from a distance, i.e. location of means for control input being remote from site of valves, e.g. on damper external wall
    • F16F9/464—Control of valve bias or pre-stress, e.g. electromagnetically

Landscapes

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

Abstract

694,544. Hydraulic shock absorbers. STROZZI, F. Sept. 17, 1951 [Oct. 31, 1950]. No. 21728/51. Class 108 (iii). An hydraulic shock absorber comprises a fluid reservoir 2 formed by a corrugated flexible casing 1a (or telescopic tubes), valves 13, 15 respectively controlling flow in opposite directions through the piston, the opening pressure of one of the valves, 15, being adjustable by means 22a operable from outside the shock absorber, and valves 27, 32 respectively controlling the flow in each direction between the cylinder 1 and reservoir 2, the pressure at which one of the valves, 32, opens, being adjustable by means 34 from outside the shock absorber. The valve 15 has a conical head which seats by the action of a tension spring 20 to control liquid flow from above the piston, - through ports 19 and an annular space 18 to below the piston. The loading of the spring 20 is adjustable by the action of a screw 22 the head 22a of which is accessible by means of slot 10a in the attachment eye 10. The base valve comprises a flap valve 27 held in position over an aperture in a plate 25 by a washer 9. The plate 25 and washer 9 are both retained in position by a plate 26 secured by a screw 24. A bore through the screw 24 connects the cylinder 1 via a spring-loaded flap valve 32 with a duct 30, each end of which opens into the reservoir 2. The loading spring 33 of the valve 32 is adjustable by means of a screw 34. The reservoir 2 is vented to atmosphere at 11. A coiled rubber pipe may be joined to the connection 11 in order to prevent the ingress of dirt to the reservoir. In operation, on compression, liquid passes up through the piston via a conventional flap valve 13, and liquid is displaced to the reservoir via the adjustable valve 32. On rebound, liquid passes back from the reservoir to the cylinder via the valve 27 and through a peripheral series of ports (not shown) in the plate 26. Liquid also passes from above to below the piston via the adjustable valve 15.
GB21728/51A 1950-10-31 1951-09-17 Hydraulic shock absorber of the piston type Expired GB694544A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT293346X 1950-10-31

Publications (1)

Publication Number Publication Date
GB694544A true GB694544A (en) 1953-07-22

Family

ID=11226783

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21728/51A Expired GB694544A (en) 1950-10-31 1951-09-17 Hydraulic shock absorber of the piston type

Country Status (4)

Country Link
BE (1) BE506125A (en)
CH (1) CH293346A (en)
FR (1) FR1041527A (en)
GB (1) GB694544A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1178238A2 (en) * 2000-07-31 2002-02-06 Wohlfarth, Klaus Twin-tube type shock absorber
CN103062274A (en) * 2011-10-18 2013-04-24 Zf腓特烈斯哈芬股份公司 Corrugated pipe ventilation device in vibration damper
JP2016173121A (en) * 2015-03-17 2016-09-29 東洋ゴム工業株式会社 Axle spring
CN105987118A (en) * 2015-03-17 2016-10-05 东洋橡胶工业株式会社 Air spring
CN109441989A (en) * 2018-12-28 2019-03-08 贵州大学 A kind of damping element protective device of the All-terrain Forklift with dustproof effect

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3193239A (en) * 1962-05-21 1965-07-06 Edwin P Monroe Suspension device
US4154434A (en) * 1977-10-26 1979-05-15 Wallis Bernard J Boot arrangement for piston-cylinder assembly
FR2418390A1 (en) * 1978-02-24 1979-09-21 Bourcier Carbon Christian Telescopic hydraulic shock absorber for car - has nut rotated to move needle w.r.t. seat and vary piston orifice to adjust stiffness
DE3037179A1 (en) * 1980-10-02 1982-04-29 Fichtel & Sachs Ag, 8720 Schweinfurt Vibration damper for automobiles has protective bellows - around piston rod forming part of fluid reservoir

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1178238A2 (en) * 2000-07-31 2002-02-06 Wohlfarth, Klaus Twin-tube type shock absorber
EP1178238A3 (en) * 2000-07-31 2003-06-18 Wohlfarth, Klaus Twin-tube type shock absorber
CN103062274A (en) * 2011-10-18 2013-04-24 Zf腓特烈斯哈芬股份公司 Corrugated pipe ventilation device in vibration damper
JP2016173121A (en) * 2015-03-17 2016-09-29 東洋ゴム工業株式会社 Axle spring
CN105987118A (en) * 2015-03-17 2016-10-05 东洋橡胶工业株式会社 Air spring
CN109441989A (en) * 2018-12-28 2019-03-08 贵州大学 A kind of damping element protective device of the All-terrain Forklift with dustproof effect

Also Published As

Publication number Publication date
CH293346A (en) 1953-09-15
FR1041527A (en) 1953-10-23
BE506125A (en)

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