FR3141978B1 - Amortisseur hydraulique de suspension de véhicule automobile. - Google Patents

Amortisseur hydraulique de suspension de véhicule automobile. Download PDF

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Publication number
FR3141978B1
FR3141978B1 FR2211709A FR2211709A FR3141978B1 FR 3141978 B1 FR3141978 B1 FR 3141978B1 FR 2211709 A FR2211709 A FR 2211709A FR 2211709 A FR2211709 A FR 2211709A FR 3141978 B1 FR3141978 B1 FR 3141978B1
Authority
FR
France
Prior art keywords
piston
shock absorber
hydraulic shock
automobile suspension
passage
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
FR2211709A
Other languages
English (en)
Other versions
FR3141978A1 (fr
Inventor
Gilles Tilmont
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.)
PSA Automobiles SA
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 FR2211709A priority Critical patent/FR3141978B1/fr
Priority to PCT/FR2023/051631 priority patent/WO2024100336A1/fr
Priority to EP23813797.0A priority patent/EP4623222A1/fr
Publication of FR3141978A1 publication Critical patent/FR3141978A1/fr
Application granted granted Critical
Publication of FR3141978B1 publication Critical patent/FR3141978B1/fr
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
    • 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
    • F16F9/32—Details
    • F16F9/34—Special valve constructions; Shape or construction of throttling passages
    • F16F9/3405—Throttling passages in or on piston body, e.g. slots
    • 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
    • F16F9/10—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

Landscapes

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

Abstract

L’invention concerne un amortisseur (1) comprenant un corps (2) contenant un piston principal (3) relié à une tige (4) et destiné à coulisser à l’intérieur du corps (2), contenant un fluide amortisseur, le piston principal (3) divisant le corps (2) en une première (5) et une deuxième (6) chambres et comprenant un premier passage (7) permettant une communication entre la première (5) et la deuxième (6) chambre et étant en partie ménagé dans un premier piston (8) dans un premier logement (9), le premier piston (8) de fuite comprenant un premier canal (10) conçu pour ouvrir ou fermer le premier passage (7) suivant la position du premier piston (8) qui est formé d’au moins deux étages (12a, 12b), chacun conçu pour s’éloigner de la première position de repos sous l’effet d’une pression, exercée sur le premier piston (8), supérieure à une pression seuil prédéterminée propre à chaque étage (12a, 12b). (Figure 1)
FR2211709A 2022-11-10 2022-11-10 Amortisseur hydraulique de suspension de véhicule automobile. Active FR3141978B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR2211709A FR3141978B1 (fr) 2022-11-10 2022-11-10 Amortisseur hydraulique de suspension de véhicule automobile.
PCT/FR2023/051631 WO2024100336A1 (fr) 2022-11-10 2023-10-18 Amortisseur hydraulique de suspension de véhicule automobile
EP23813797.0A EP4623222A1 (fr) 2022-11-10 2023-10-18 Amortisseur hydraulique de suspension de véhicule automobile

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2211709 2022-11-10
FR2211709A FR3141978B1 (fr) 2022-11-10 2022-11-10 Amortisseur hydraulique de suspension de véhicule automobile.

Publications (2)

Publication Number Publication Date
FR3141978A1 FR3141978A1 (fr) 2024-05-17
FR3141978B1 true FR3141978B1 (fr) 2025-02-21

Family

ID=84820191

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2211709A Active FR3141978B1 (fr) 2022-11-10 2022-11-10 Amortisseur hydraulique de suspension de véhicule automobile.

Country Status (3)

Country Link
EP (1) EP4623222A1 (fr)
FR (1) FR3141978B1 (fr)
WO (1) WO2024100336A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4989507A (fr) 1972-12-26 1974-08-27
US4325468A (en) * 1979-01-31 1982-04-20 The United States Of America As Represented By The Secretary Of The Army Suspension control valve using coned spring disks
US4596270A (en) * 1985-05-20 1986-06-24 Consolidated Controls Corporation Bi-directional flow control device
DE3939485A1 (de) * 1989-11-29 1990-04-05 Rainer Dipl Ing Daumann Selbstregelnder stossdaempfer fuer wechselnde massen
KR101756425B1 (ko) * 2013-12-04 2017-07-10 주식회사 만도 주파수 감응형 쇽업소버
CN108331876B (zh) * 2018-03-29 2019-12-31 江苏大学 一种减振器阻尼调节阀
DE102020130940A1 (de) * 2020-11-23 2022-05-25 Vb-Techniek B.V. Hydraulischer Stoßdämpfer
FR3120105B1 (fr) * 2021-02-25 2023-07-07 Psa Automobiles Sa Limiteur de debit avec fuite degressive pour amortisseur hydraulique de suspension de vehicule

Also Published As

Publication number Publication date
FR3141978A1 (fr) 2024-05-17
EP4623222A1 (fr) 2025-10-01
WO2024100336A1 (fr) 2024-05-16

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