FR3094435B1 - INERTIAL DOUBLE CHAMBER SHOCK ABSORBER FOR AUTOMOTIVE VEHICLE SUSPENSION - Google Patents

INERTIAL DOUBLE CHAMBER SHOCK ABSORBER FOR AUTOMOTIVE VEHICLE SUSPENSION Download PDF

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Publication number
FR3094435B1
FR3094435B1 FR1903247A FR1903247A FR3094435B1 FR 3094435 B1 FR3094435 B1 FR 3094435B1 FR 1903247 A FR1903247 A FR 1903247A FR 1903247 A FR1903247 A FR 1903247A FR 3094435 B1 FR3094435 B1 FR 3094435B1
Authority
FR
France
Prior art keywords
shock absorber
vehicle suspension
automotive vehicle
double chamber
piston
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.)
Active
Application number
FR1903247A
Other languages
French (fr)
Other versions
FR3094435A1 (en
Inventor
Jean Chillon
Christophe Monteil
Francis Bontron
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.)
Stellantis Auto Sas Fr
Original Assignee
PSA Automobiles SA
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 PSA Automobiles SA filed Critical PSA Automobiles SA
Priority to FR1903247A priority Critical patent/FR3094435B1/en
Priority to PCT/FR2019/050779 priority patent/WO2019202231A1/en
Priority to EP19720967.9A priority patent/EP3781835B1/en
Publication of FR3094435A1 publication Critical patent/FR3094435A1/en
Application granted granted Critical
Publication of FR3094435B1 publication Critical patent/FR3094435B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F16F9/182—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 comprising a hollow piston rod
    • 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
    • F16F7/00—Vibration-dampers; Shock-absorbers
    • F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
    • F16F7/1034—Vibration-dampers; Shock-absorbers using inertia effect of movement of a liquid
    • 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
    • F16F9/22—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 one or more cylinders each having a single working space closed by a piston or plunger
    • 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
    • F16F9/346—Throttling passages in the form of slots arranged in cylinder walls
    • 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
    • F16F9/504—Inertia, i.e. acceleration,-sensitive means
    • 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
    • F16F9/512—Means responsive to load action, i.e. static load on the damper or dynamic fluid pressure changes in the damper, e.g. due to changes in velocity
    • F16F9/5126—Piston, or piston-like valve elements
    • 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
    • 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
    • F16F9/20—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 with the piston-rod extending through both ends of the cylinder, e.g. constant-volume dampers

Landscapes

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

Abstract

L’invention concerne un amortisseur (2) pour suspension de véhicule automobile, qui comprend des premier et deuxième éléments (4, 6) formant un circuit hydraulique amortisseur et un circuit hydraulique inertiel, avec, entre le premier élément (4) et le deuxième élément (6), de positionnée une paroi intermédiaire (20) cylindrique, ladite paroi intermédiaire (20) comportant une chambre intermédiaire (22) qui comporte un fluide hydraulique et au moins un piston intermédiaire (12) solidaire dudit premier élément (4) et apte à coulisser le long de la chambre intermédiaire (22), ladite chambre intermédiaire (22) comportant des moyens de rappel (27) positionnés entre le piston intermédiaire (12) et la paroi intermédiaire (20), ladite chambre intermédiaire (22) comportant, pour au moins un positionnement du piston intermédiaire (12) le long de ladite chambre intermédiaire (22), des moyens de fuite (24) qui permettent un passage du fluide hydraulique de part et d’autre du piston intermédiaire (12). Figure pour l’abrégé : Fig. 1The invention relates to a shock absorber (2) for a motor vehicle suspension, which comprises first and second elements (4, 6) forming a damping hydraulic circuit and an inertial hydraulic circuit, with, between the first element (4) and the second element (6), with a cylindrical intermediate wall (20) positioned, said intermediate wall (20) comprising an intermediate chamber (22) which comprises a hydraulic fluid and at least one intermediate piston (12) integral with said first element (4) and able to slide along the intermediate chamber (22), said intermediate chamber (22) comprising return means (27) positioned between the intermediate piston (12) and the intermediate wall (20), said intermediate chamber (22) comprising , for at least one positioning of the intermediate piston (12) along said intermediate chamber (22), leakage means (24) which allow hydraulic fluid to pass on either side of the intermediate piston ( 12). Figure for the abstract: Fig. 1

FR1903247A 2018-04-17 2019-03-28 INERTIAL DOUBLE CHAMBER SHOCK ABSORBER FOR AUTOMOTIVE VEHICLE SUSPENSION Active FR3094435B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR1903247A FR3094435B1 (en) 2019-03-28 2019-03-28 INERTIAL DOUBLE CHAMBER SHOCK ABSORBER FOR AUTOMOTIVE VEHICLE SUSPENSION
PCT/FR2019/050779 WO2019202231A1 (en) 2018-04-17 2019-04-03 Hydraulic shock absorber with inertial fluid damping for the suspension of a motor vehicle
EP19720967.9A EP3781835B1 (en) 2018-04-17 2019-04-03 Fluid damper with inertial fluid damping for a vehicle suspension

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1903247 2019-03-28
FR1903247A FR3094435B1 (en) 2019-03-28 2019-03-28 INERTIAL DOUBLE CHAMBER SHOCK ABSORBER FOR AUTOMOTIVE VEHICLE SUSPENSION

Publications (2)

Publication Number Publication Date
FR3094435A1 FR3094435A1 (en) 2020-10-02
FR3094435B1 true FR3094435B1 (en) 2021-03-12

Family

ID=67384032

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1903247A Active FR3094435B1 (en) 2018-04-17 2019-03-28 INERTIAL DOUBLE CHAMBER SHOCK ABSORBER FOR AUTOMOTIVE VEHICLE SUSPENSION

Country Status (1)

Country Link
FR (1) FR3094435B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7953482A (en) * 1981-01-16 1982-07-22 Andrew John Morris Inertia responsive arrangement
US20050046137A1 (en) * 2003-08-28 2005-03-03 Fima Dreff Hydraulic suspension device and system for controlling wheel hop
FR2922286B1 (en) * 2007-10-11 2014-02-21 Eurocopter France DAMPER OF A VEHICLE
JP2013518217A (en) * 2010-01-25 2013-05-20 ロータス エフワン チーム リミテッド Fluid inerter
US20130037362A1 (en) 2010-02-05 2013-02-14 Bill J. Gartner Damping and inertial hydraulic device

Also Published As

Publication number Publication date
FR3094435A1 (en) 2020-10-02

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Owner name: STELLANTIS AUTO SAS, FR

Effective date: 20240423