GB836045A - Improvements in or relating to hydraulic dampers - Google Patents

Improvements in or relating to hydraulic dampers

Info

Publication number
GB836045A
GB836045A GB13003/57A GB1300357A GB836045A GB 836045 A GB836045 A GB 836045A GB 13003/57 A GB13003/57 A GB 13003/57A GB 1300357 A GB1300357 A GB 1300357A GB 836045 A GB836045 A GB 836045A
Authority
GB
United Kingdom
Prior art keywords
chamber
liquid
cap
poises
april
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
GB13003/57A
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 GB836045A publication Critical patent/GB836045A/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
    • F16F9/006—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium characterised by the nature of the damping medium, e.g. biodegradable
    • 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
    • F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
    • F16F9/061—Mono-tubular units
    • 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
    • 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
    • F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
    • F16F9/52—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics in case of change of temperature

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)
  • Combined Devices Of Dampers And Springs (AREA)
  • Lubricants (AREA)

Abstract

836,045. Hydraulic shock absorbers. BRUNET, M.A. April 24, 1957 [April 25, 1956], No. 13003/57. Class 108(3) A hydraulic damper comprises a chamber 1 containing a member 31 and a liquid which is circulated by pressure caused by relative movement between the member 31 and the chamber anc wherein the liquic at a temperature of 25‹C. has a viscosity higher than 30 poises and advantageously between 100 and 100( poises. The liquid which may be a silicone e.g. methyl silicone, circulates from one side to the other of the member 31 through a constricted passage-way comprising the clearance between the parts 31 and 1, thus close tolerances are unnecessary. Alternatively, nylon spacer members may be fitted into grooves in the member 31 which may, if its diameter is only just less than the internal diameter of the chamber 1, be longitudinally grooved to form the liquid passageways. A shaft 6 carrying the member 31 is slidingly fitted in an end cap 3 of bronze, nylon or aluminium alloy having a synthetic rubber seal 4 held in place by a cap 5. A part 3<SP>1</SP> rigid with the cap 3 forms an additional braking action when it coacts with the cupped portion of the member 31, and, so that excessive pressure is not made on the seal 4, an internal recess 32 is provided to communicate through apertures 33 with the chamber 1. A rubber gum washer 8 contains substances which slowly dissolve in the liquid to compensate for any reduction in viscosity. A thermal compensating device, Fig. 8, may be incorporated and comprises an additional passageway between a head 27 and a resilient split ring 26. When there is an increase in temperature, expansion of the mass of an annular rubber block causes a compression of the ring 26 which lessens the gap between it and the head 27.
GB13003/57A 1956-04-25 1957-04-24 Improvements in or relating to hydraulic dampers Expired GB836045A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR836045X 1956-04-25

Publications (1)

Publication Number Publication Date
GB836045A true GB836045A (en) 1960-06-01

Family

ID=9297892

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13003/57A Expired GB836045A (en) 1956-04-25 1957-04-24 Improvements in or relating to hydraulic dampers

Country Status (1)

Country Link
GB (1) GB836045A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3043711A1 (en) * 1979-11-21 1981-06-04 United Kingdom Atomic Energy Authority, London HYDRAULIC SHOCK ABSORBER

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3043711A1 (en) * 1979-11-21 1981-06-04 United Kingdom Atomic Energy Authority, London HYDRAULIC SHOCK ABSORBER

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