FR3120105B1 - FLOW LIMITER WITH DEGRESSIVE LEAK FOR HYDRAULIC VEHICLE SUSPENSION SHOCK ABSORBER - Google Patents

FLOW LIMITER WITH DEGRESSIVE LEAK FOR HYDRAULIC VEHICLE SUSPENSION SHOCK ABSORBER Download PDF

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Publication number
FR3120105B1
FR3120105B1 FR2101852A FR2101852A FR3120105B1 FR 3120105 B1 FR3120105 B1 FR 3120105B1 FR 2101852 A FR2101852 A FR 2101852A FR 2101852 A FR2101852 A FR 2101852A FR 3120105 B1 FR3120105 B1 FR 3120105B1
Authority
FR
France
Prior art keywords
main element
shock absorber
vehicle suspension
central passage
degressive
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
FR2101852A
Other languages
French (fr)
Other versions
FR3120105A1 (en
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.)
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 FR2101852A priority Critical patent/FR3120105B1/en
Publication of FR3120105A1 publication Critical patent/FR3120105A1/en
Application granted granted Critical
Publication of FR3120105B1 publication Critical patent/FR3120105B1/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
    • F16F9/34—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
    • 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

Landscapes

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

Abstract

L'invention concerne un limiteur de débit (1a, 1b) pour fluide d'amortisseur de suspension de véhicule automobile comprenant un corps (2) traversé par un passage central (3) pour le fluide et un dispositif mobile (4) positionné dans le passage central (3) et comprenant un élément principal (5) coulissant de manière étanche dans le passage central (3). L’élément principal (5) est en liaison mécanique avec deux pistons (7, 8) disposés dans le passage central (3) de part et d'autre de l'élément principal (5) qui est maintenu par deux ressorts (17, 18) dont un premier ressort (17) et un deuxième ressort (18) positionnés de chaque côté de l'élément principal (5) en opposition, les ressorts (17, 18) entourant au moins partiellement les pistons (7, 8) et étant aptes à maintenir le dispositif mobile (4) en position d'ouverture maximale des passages de fuite (13, 14) lorsque l'élément principal (5) est au repos. (Fig. 2)The invention relates to a flow restrictor (1a, 1b) for motor vehicle suspension shock absorber fluid comprising a body (2) traversed by a central passage (3) for the fluid and a mobile device (4) positioned in the central passage (3) and comprising a main element (5) sliding in sealed manner in the central passage (3). The main element (5) is in mechanical connection with two pistons (7, 8) arranged in the central passage (3) on either side of the main element (5) which is held by two springs (17, 18) including a first spring (17) and a second spring (18) positioned on each side of the main element (5) in opposition, the springs (17, 18) at least partially surrounding the pistons (7, 8) and being capable of maintaining the movable device (4) in the position of maximum opening of the escape passages (13, 14) when the main element (5) is at rest. (Fig.2)

FR2101852A 2021-02-25 2021-02-25 FLOW LIMITER WITH DEGRESSIVE LEAK FOR HYDRAULIC VEHICLE SUSPENSION SHOCK ABSORBER Active FR3120105B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2101852A FR3120105B1 (en) 2021-02-25 2021-02-25 FLOW LIMITER WITH DEGRESSIVE LEAK FOR HYDRAULIC VEHICLE SUSPENSION SHOCK ABSORBER

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2101852A FR3120105B1 (en) 2021-02-25 2021-02-25 FLOW LIMITER WITH DEGRESSIVE LEAK FOR HYDRAULIC VEHICLE SUSPENSION SHOCK ABSORBER
FR2101852 2021-02-25

Publications (2)

Publication Number Publication Date
FR3120105A1 FR3120105A1 (en) 2022-08-26
FR3120105B1 true FR3120105B1 (en) 2023-07-07

Family

ID=75339948

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2101852A Active FR3120105B1 (en) 2021-02-25 2021-02-25 FLOW LIMITER WITH DEGRESSIVE LEAK FOR HYDRAULIC VEHICLE SUSPENSION SHOCK ABSORBER

Country Status (1)

Country Link
FR (1) FR3120105B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3141978A1 (en) * 2022-11-10 2024-05-17 Psa Automobiles Sa Hydraulic motor vehicle suspension shock absorber.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127958A (en) 1961-06-30 1964-04-07 Ford Motor Co Shock absorber with improved relief valve structure
JPS58100103U (en) * 1981-12-28 1983-07-07 カヤバ工業株式会社 Shock absorber
DE4410730C1 (en) * 1994-03-28 1995-06-08 Biedermann Motech Gmbh Servo-hydraulic swing phase control for artificial knee joint
JPH08118937A (en) * 1994-10-26 1996-05-14 Toyota Motor Corp Height regulator of vehicle
US7967116B2 (en) * 2007-12-10 2011-06-28 Enidine, Inc. Load compensating hydraulic rate control
FR3080162B1 (en) 2018-04-17 2020-08-21 Psa Automobiles Sa INERTIAL SHOCK ABSORBER FOR MOTOR VEHICLE SUSPENSION
FR3086985B1 (en) * 2018-10-04 2020-12-18 Psa Automobiles Sa HYDRAULIC SHOCK ABSORBER WITH AUTOMATIC ADJUSTMENT FOLLOWING RADIAL ACCELERATION

Also Published As

Publication number Publication date
FR3120105A1 (en) 2022-08-26

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Legal Events

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PLFP Fee payment

Year of fee payment: 2

PLSC Publication of the preliminary search report

Effective date: 20220826

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Year of fee payment: 3

PLFP Fee payment

Year of fee payment: 4

CD Change of name or company name

Owner name: STELLANTIS AUTO SAS, FR

Effective date: 20240423