FR3090781B1 - Hydraulic shock absorber with temporary inertia deactivation - Google Patents

Hydraulic shock absorber with temporary inertia deactivation Download PDF

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Publication number
FR3090781B1
FR3090781B1 FR1873507A FR1873507A FR3090781B1 FR 3090781 B1 FR3090781 B1 FR 3090781B1 FR 1873507 A FR1873507 A FR 1873507A FR 1873507 A FR1873507 A FR 1873507A FR 3090781 B1 FR3090781 B1 FR 3090781B1
Authority
FR
France
Prior art keywords
shock absorber
hydraulic shock
shutter
deactivation
axial rod
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
FR1873507A
Other languages
French (fr)
Other versions
FR3090781A1 (en
Inventor
Christophe Monteil
Jean Marc Allegre
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 FR1873507A priority Critical patent/FR3090781B1/en
Priority to EP19868203.1A priority patent/EP3899315A1/en
Priority to PCT/FR2019/052873 priority patent/WO2020128192A1/en
Publication of FR3090781A1 publication Critical patent/FR3090781A1/en
Application granted granted Critical
Publication of FR3090781B1 publication Critical patent/FR3090781B1/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
    • F16F9/32—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G13/00—Resilient suspensions characterised by arrangement, location or type of vibration dampers
    • B60G13/16—Resilient suspensions characterised by arrangement, location or type of vibration dampers having dynamic absorbers as main damping means, i.e. spring-mass system vibrating out of phase
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
    • B60G17/06—Characteristics of dampers, e.g. mechanical dampers
    • B60G17/08—Characteristics of fluid dampers
    • 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
    • F16F9/18—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
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2300/00—Indexing codes relating to the type of vehicle
    • B60G2300/10—Railway vehicles
    • 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
    • F16F2222/00—Special physical effects, e.g. nature of damping effects
    • F16F2222/08—Inertia
    • 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
    • F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
    • F16F2228/04—Frequency effects
    • 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
    • F16F9/3221—Constructional features of piston rods
    • 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

Landscapes

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

Abstract

Amortisseur hydraulique à désactivation temporaire d’inertie L’invention concerne un amortisseur hydraulique de suspension de véhicule automobile comportant un corps (2) cylindrique contenant un piston (6) fixé à une tige axiale (4) coulissante, délimitant dans ce corps (2) deux chambres (8, 10) qui sont reliées par une colonne de fluide à inertie (14) débouchant dans chaque chambre (8 ,10) par un premier (12) ou deuxième orifice (16) respectif disposé latéralement sur la tige axiale (4). La colonne de fluide à inertie (14) est formée à l’intérieur de la tige axiale (4) et le piston (6) est relié à un obturateur (21) par un ressort (22), une masse de l’obturateur (21) et une constante de rappel du ressort (22) étant calibrés pour que l’obturateur (21) ferme temporairement et au moins partiellement le premier orifice (12) à une fréquence prédéterminée appliquée à l’amortisseur. Figure de l’abrégé : FIGURE 3The invention relates to a hydraulic shock absorber for the suspension of a motor vehicle comprising a cylindrical body (2) containing a piston (6) fixed to an axial rod (4) sliding, delimiting in this body (2) two chambers (8, 10) which are connected by a column of inertial fluid (14) opening into each chamber (8, 10) by a first (12) or second respective orifice (16) disposed laterally on the axial rod (4) ). The inertial fluid column (14) is formed inside the axial rod (4) and the piston (6) is connected to a shutter (21) by a spring (22), a shutter mass ( 21) and a return constant of the spring (22) being calibrated so that the shutter (21) temporarily and at least partially closes the first port (12) at a predetermined frequency applied to the damper. Abstract figure: FIGURE 3

FR1873507A 2018-12-20 2018-12-20 Hydraulic shock absorber with temporary inertia deactivation Active FR3090781B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR1873507A FR3090781B1 (en) 2018-12-20 2018-12-20 Hydraulic shock absorber with temporary inertia deactivation
EP19868203.1A EP3899315A1 (en) 2018-12-20 2019-12-02 Hydraulic shock absorber with temporary inertia deactivation
PCT/FR2019/052873 WO2020128192A1 (en) 2018-12-20 2019-12-02 Hydraulic shock absorber with temporary inertia deactivation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1873507A FR3090781B1 (en) 2018-12-20 2018-12-20 Hydraulic shock absorber with temporary inertia deactivation

Publications (2)

Publication Number Publication Date
FR3090781A1 FR3090781A1 (en) 2020-06-26
FR3090781B1 true FR3090781B1 (en) 2021-04-16

Family

ID=66676714

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1873507A Active FR3090781B1 (en) 2018-12-20 2018-12-20 Hydraulic shock absorber with temporary inertia deactivation

Country Status (3)

Country Link
EP (1) EP3899315A1 (en)
FR (1) FR3090781B1 (en)
WO (1) WO2020128192A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2742448B2 (en) * 2018-08-14 2021-11-03 Garcia Jasiel Najera Shock absorber with load regulation depending on the frequency by means of hydraulic inertia
FR3120408B1 (en) * 2021-03-08 2023-01-20 Psa Automobiles Sa MOTOR VEHICLE SUSPENSION HYDRAULIC SHOCK ABSORBER
CN113236700A (en) * 2021-04-27 2021-08-10 南京信息职业技术学院 Damping device suitable for new energy automobile
FR3123402B1 (en) * 2021-05-28 2023-07-14 Psa Automobiles Sa MOTOR VEHICLE SUSPENSION SHOCK ABSORBER WITH INERTIAL BRAKING

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1364982A (en) * 1963-07-18 1964-06-26 Kayaba Industry Co Ltd Damper
FR1446604A (en) * 1964-09-08 1966-07-22 Girling Ltd Improvements to hydraulic vehicle suspension shock absorbers
US3570635A (en) * 1967-12-11 1971-03-16 Tatsuya Takagi Oil-type vibration damper
JPS5997336A (en) * 1982-11-22 1984-06-05 Kayaba Ind Co Ltd Hydraulic buffer
JPS5999135A (en) * 1982-11-29 1984-06-07 Kayaba Ind Co Ltd Hydraulic shock absorber
JPS59106733A (en) * 1982-12-07 1984-06-20 Kayaba Ind Co Ltd Oil-hydraulic damper
US7216747B2 (en) * 2004-10-14 2007-05-15 Tenneco Automotive Operating Company Inc. Amplitude controlled orifice valving
JP5368917B2 (en) * 2009-09-10 2013-12-18 カヤバ工業株式会社 Damping valve
WO2011095787A1 (en) 2010-02-05 2011-08-11 Cambridge Enterprise Limited Damping and inertial hydraulic device
CN105276060B (en) 2015-11-10 2017-12-05 江苏大学 A kind of dual circuit liquid of variable used matter coefficient is used to container

Also Published As

Publication number Publication date
EP3899315A1 (en) 2021-10-27
FR3090781A1 (en) 2020-06-26
WO2020128192A1 (en) 2020-06-25

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