FR2070395A5 - Hydraulic damper - with plastic orifice moulding which contract - with rising - temperatures to compensate falling oil viscosities - Google Patents

Hydraulic damper - with plastic orifice moulding which contract - with rising - temperatures to compensate falling oil viscosities

Info

Publication number
FR2070395A5
FR2070395A5 FR6941739A FR6941739A FR2070395A5 FR 2070395 A5 FR2070395 A5 FR 2070395A5 FR 6941739 A FR6941739 A FR 6941739A FR 6941739 A FR6941739 A FR 6941739A FR 2070395 A5 FR2070395 A5 FR 2070395A5
Authority
FR
France
Prior art keywords
rising
contract
compensate
temperatures
hydraulic damper
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
FR6941739A
Other languages
French (fr)
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
Priority to FR6941739A priority Critical patent/FR2070395A5/en
Application granted granted Critical
Publication of FR2070395A5 publication Critical patent/FR2070395A5/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
    • F16F9/50—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)

Abstract

A hydraulic damping pist on with at least one orifice to damp small oscillations, where the bore is defined in a moulding set in a relatively massive metal housing and having a relatively large coefficient of thermal expansion, pref. a high mol. wt. polyamide. In telescopic suspension systems for vehicles, etc. the throttling of the orifice by the relative expansion as radial contraction of the plastic moulding material provides automatic compensation for the decrease in oil viscosity with rising temp. Suitable for automobiles, etc.
FR6941739A 1969-12-03 1969-12-03 Hydraulic damper - with plastic orifice moulding which contract - with rising - temperatures to compensate falling oil viscosities Expired FR2070395A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6941739A FR2070395A5 (en) 1969-12-03 1969-12-03 Hydraulic damper - with plastic orifice moulding which contract - with rising - temperatures to compensate falling oil viscosities

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6941739A FR2070395A5 (en) 1969-12-03 1969-12-03 Hydraulic damper - with plastic orifice moulding which contract - with rising - temperatures to compensate falling oil viscosities

Publications (1)

Publication Number Publication Date
FR2070395A5 true FR2070395A5 (en) 1971-09-10

Family

ID=9044022

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6941739A Expired FR2070395A5 (en) 1969-12-03 1969-12-03 Hydraulic damper - with plastic orifice moulding which contract - with rising - temperatures to compensate falling oil viscosities

Country Status (1)

Country Link
FR (1) FR2070395A5 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3202721A1 (en) * 1982-01-28 1983-08-11 August Bilstein GmbH & Co KG, 5828 Ennepetal Proportional pressure valve for hydropneumatic vibration dampers, in particular a bottom valve which can be installed in twin-tube dampers
FR2607890A1 (en) * 1986-12-09 1988-06-10 Renault Shock absorbers including shape-memory materials
EP0539174A1 (en) * 1991-10-21 1993-04-28 Tsubakimoto Chain Co. Temperature compensated tensioner
CN113775688A (en) * 2021-08-27 2021-12-10 中国第一汽车股份有限公司 Novel continuous damping control shock absorber

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3202721A1 (en) * 1982-01-28 1983-08-11 August Bilstein GmbH & Co KG, 5828 Ennepetal Proportional pressure valve for hydropneumatic vibration dampers, in particular a bottom valve which can be installed in twin-tube dampers
FR2607890A1 (en) * 1986-12-09 1988-06-10 Renault Shock absorbers including shape-memory materials
EP0539174A1 (en) * 1991-10-21 1993-04-28 Tsubakimoto Chain Co. Temperature compensated tensioner
CN113775688A (en) * 2021-08-27 2021-12-10 中国第一汽车股份有限公司 Novel continuous damping control shock absorber
CN113775688B (en) * 2021-08-27 2022-08-16 中国第一汽车股份有限公司 Continuous damping control shock absorber

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse