FR3035618B1 - SHOCK ABSORBER WITH ADJUSTABLE DISCHARGE SYSTEM EQUIPPED WITH AN OPTIMIZED NEEDLE AND JET ASSEMBLY, AND SUSPENSION SYSTEM EQUIPPED WITH SUCH A SHOCK ABSORBER - Google Patents

SHOCK ABSORBER WITH ADJUSTABLE DISCHARGE SYSTEM EQUIPPED WITH AN OPTIMIZED NEEDLE AND JET ASSEMBLY, AND SUSPENSION SYSTEM EQUIPPED WITH SUCH A SHOCK ABSORBER Download PDF

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Publication number
FR3035618B1
FR3035618B1 FR1553805A FR1553805A FR3035618B1 FR 3035618 B1 FR3035618 B1 FR 3035618B1 FR 1553805 A FR1553805 A FR 1553805A FR 1553805 A FR1553805 A FR 1553805A FR 3035618 B1 FR3035618 B1 FR 3035618B1
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France
Prior art keywords
shock absorber
system equipped
needle
suspension system
jet assembly
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FR1553805A
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French (fr)
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FR3035618A1 (en
Inventor
Maurice Defaut
Francois Troisfontaine
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Priority to FR1553805A priority Critical patent/FR3035618B1/en
Publication of FR3035618A1 publication Critical patent/FR3035618A1/en
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Publication of FR3035618B1 publication Critical patent/FR3035618B1/en
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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
    • F16F9/44—Means on or in the damper for manual or non-automatic adjustment; such means combined with temperature correction
    • F16F9/446—Adjustment of valve bias or pre-stress

Abstract

L'invention concerne un amortisseur (1) réglable comprenant un corps (2, 8) empli de fluide, une tige (3) configurée pour pénétrer et coulisser dans le corps. Des moyens de décharge (3, 16, 17, 18, 10, 53) définissent dans le corps au moins deux chambres successives (6, 7, 11, 12) à volumes et pressions variables permettant de dissiper l'énergie générée par les mouvements de la tige. Un système de décharge (16, 53) dispose d'un ensemble pointeau (21, 54) et gicleur (22, 55) agencé entre deux chambres et configuré pour transférer le fluide dans au moins un sens avec un débit permanent. Le réglage de la position du pointeau par rapport au gicleur permet de régler le débit permanent à une valeur définie. Le pointeau comprend une tête configurée pour que la courbe représentative du débit, en fonction de la position du pointeau, soit quasiment une droite. L'invention concerne également un système de suspension équipé d'un tel amortisseur.The invention relates to an adjustable shock absorber (1) comprising a fluid-filled body (2, 8), a rod (3) configured to enter and slide in the body. Discharge means (3, 16, 17, 18, 10, 53) define in the body at least two successive chambers (6, 7, 11, 12) with variable volumes and pressures making it possible to dissipate the energy generated by the movements of the rod. A discharge system (16, 53) has a needle (21, 54) and nozzle (22, 55) assembly arranged between two chambers and configured to transfer fluid in at least one direction with a steady flow. Adjusting the position of the needle in relation to the nozzle allows the permanent flow to be adjusted to a defined value. The needle comprises a head configured so that the curve representative of the flow rate, as a function of the position of the needle, is almost a straight line. The invention also relates to a suspension system equipped with such a shock absorber.

FR1553805A 2015-04-28 2015-04-28 SHOCK ABSORBER WITH ADJUSTABLE DISCHARGE SYSTEM EQUIPPED WITH AN OPTIMIZED NEEDLE AND JET ASSEMBLY, AND SUSPENSION SYSTEM EQUIPPED WITH SUCH A SHOCK ABSORBER Active FR3035618B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1553805A FR3035618B1 (en) 2015-04-28 2015-04-28 SHOCK ABSORBER WITH ADJUSTABLE DISCHARGE SYSTEM EQUIPPED WITH AN OPTIMIZED NEEDLE AND JET ASSEMBLY, AND SUSPENSION SYSTEM EQUIPPED WITH SUCH A SHOCK ABSORBER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1553805A FR3035618B1 (en) 2015-04-28 2015-04-28 SHOCK ABSORBER WITH ADJUSTABLE DISCHARGE SYSTEM EQUIPPED WITH AN OPTIMIZED NEEDLE AND JET ASSEMBLY, AND SUSPENSION SYSTEM EQUIPPED WITH SUCH A SHOCK ABSORBER

Publications (2)

Publication Number Publication Date
FR3035618A1 FR3035618A1 (en) 2016-11-04
FR3035618B1 true FR3035618B1 (en) 2020-09-11

Family

ID=54007815

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1553805A Active FR3035618B1 (en) 2015-04-28 2015-04-28 SHOCK ABSORBER WITH ADJUSTABLE DISCHARGE SYSTEM EQUIPPED WITH AN OPTIMIZED NEEDLE AND JET ASSEMBLY, AND SUSPENSION SYSTEM EQUIPPED WITH SUCH A SHOCK ABSORBER

Country Status (1)

Country Link
FR (1) FR3035618B1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008053092B4 (en) * 2008-10-24 2014-07-10 Shimano Inc. Bicycle suspension system
JP5426431B2 (en) * 2009-06-30 2014-02-26 株式会社ショーワ Hydraulic shock absorber

Also Published As

Publication number Publication date
FR3035618A1 (en) 2016-11-04

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