FR2420693A1 - Perfectionnements aux amortisseurs de chocs hydrauliques du type telescopique - Google Patents

Perfectionnements aux amortisseurs de chocs hydrauliques du type telescopique

Info

Publication number
FR2420693A1
FR2420693A1 FR7906452A FR7906452A FR2420693A1 FR 2420693 A1 FR2420693 A1 FR 2420693A1 FR 7906452 A FR7906452 A FR 7906452A FR 7906452 A FR7906452 A FR 7906452A FR 2420693 A1 FR2420693 A1 FR 2420693A1
Authority
FR
France
Prior art keywords
valve
piston
inner cylinder
shock absorber
cylinder
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.)
Granted
Application number
FR7906452A
Other languages
English (en)
Other versions
FR2420693B3 (fr
Inventor
Vittorio Fogliacco
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.)
IAO Industrie Riunite SpA
Original Assignee
IAO Industrie Riunite SpA
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 IAO Industrie Riunite SpA filed Critical IAO Industrie Riunite SpA
Publication of FR2420693A1 publication Critical patent/FR2420693A1/fr
Application granted granted Critical
Publication of FR2420693B3 publication Critical patent/FR2420693B3/fr
Granted legal-status Critical Current

Links

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
    • F16F9/348—Throttling passages in the form of annular discs or other plate-like elements which may or may not have a spring action, operating in opposite directions or singly, e.g. annular discs positioned on top of the valve or piston body

Landscapes

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

Abstract

L'invention concerne un amortisseur de chocs hydraulique du type télescopique à << double tube >>. Cet amortisseur comprend deux cylindres coaxiaux 10, 12 fermés l'un par un couvercle 14, l'autre par un corps de soupape 16. Dans le cylindre intérieur se déplace un piston 22. Ce piston et le corps de soupape comprennent des passages axiaux étranglés 42, 84 commandés par un obturateur 48, 88. Ces disques comportent une ou des découpures périphériques assurant un écoulement laminaire aux faibles vitesses du piston, ce qui diminue le bruit de << sifflement >> de ces amortisseurs. L'invention s'applique aux amortisseurs pour véhicules automobiles.
FR7906452A 1978-03-21 1979-03-14 Perfectionnements aux amortisseurs de chocs hydrauliques du type telescopique Granted FR2420693A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT67621/78A IT1107174B (it) 1978-03-21 1978-03-21 Perfezionamenti negli ammortizzatori idraulici del tipo telescopico

Publications (2)

Publication Number Publication Date
FR2420693A1 true FR2420693A1 (fr) 1979-10-19
FR2420693B3 FR2420693B3 (fr) 1981-11-20

Family

ID=11303941

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7906452A Granted FR2420693A1 (fr) 1978-03-21 1979-03-14 Perfectionnements aux amortisseurs de chocs hydrauliques du type telescopique

Country Status (4)

Country Link
DE (1) DE2910381A1 (fr)
ES (2) ES242154Y (fr)
FR (1) FR2420693A1 (fr)
IT (1) IT1107174B (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2500899A1 (fr) * 1981-02-27 1982-09-03 Allinquant J G Perfectionnements apportes aux pistons d'amortisseurs hydrauliques pour en attenuer les bruits de fonctionnement
EP0317327A2 (fr) * 1987-11-19 1989-05-24 Unisia Jecs Corporation Amortisseur de chocs hydraulique
FR2625277A1 (fr) * 1987-12-28 1989-06-30 Tokico Ltd Amortisseur hydraulique
EP0330449A2 (fr) * 1988-02-22 1989-08-30 Unisia Jecs Corporation Amortisseur de chocs
ES2126425A1 (es) * 1994-02-26 1999-03-16 Fuchtel & Sachs Ag Amortiguador de vibraciones telescopico.
FR2796690A1 (fr) * 1999-07-23 2001-01-26 Peugeot Citroen Automobiles Sa Dispositif d'amortissement a effort limite

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3015596A1 (de) * 1980-04-23 1981-10-29 Fichtel & Sachs Ag, 8720 Schweinfurt Hydraulischer schwingungsdaempfer mit geraeuscharmen daempfventilen
DE3840302C2 (de) * 1988-11-30 1999-06-10 Mannesmann Sachs Ag Geräuscharmes Dämpfventil
DE19758625B4 (de) * 1996-03-25 2006-01-19 Tenneco Automotive Inc., Monroe Dämpfer mit Geräuschdämpfung
DE19712640B4 (de) * 1996-03-25 2004-05-06 Tenneco Automotive Inc., Monroe Dämpfer mit Geräuschdämpfung
DE19712895C2 (de) * 1997-03-27 2001-06-21 Mannesmann Sachs Ag Schwingungsdämpfer mit richtungsabhängigem Voröffnungsquerschnitt
DE102006004753B3 (de) * 2006-02-02 2007-04-12 Zf Friedrichshafen Ag Schwingungsdämpfer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE793386A (nl) * 1971-12-30 1973-04-16 Monroe Belgium Nv Schokbreker
JPS508975A (fr) * 1973-05-31 1975-01-29
DE2500826C2 (de) * 1975-01-10 1983-03-24 Volkswagenwerk Ag, 3180 Wolfsburg Ventilanordnung für einen Teleskopschwingungsdämpfer für die Radaufhängung von Kraftfahrzeugen
GB1480956A (en) * 1974-08-01 1977-07-27 Woodhead Ltd J Hydraulic shock absorbers
DE2600820C3 (de) * 1976-01-12 1982-02-04 Volkswagenwerk Ag, 3180 Wolfsburg Tellerfederventil für Stoßdämpfer
DE2641888C3 (de) * 1976-09-17 1980-06-26 Volkswagenwerk Ag, 3180 Wolfsburg Ringförmige Voröffnungsscheibe fur ein Stoßdämpferventil

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2500899A1 (fr) * 1981-02-27 1982-09-03 Allinquant J G Perfectionnements apportes aux pistons d'amortisseurs hydrauliques pour en attenuer les bruits de fonctionnement
EP0317327A2 (fr) * 1987-11-19 1989-05-24 Unisia Jecs Corporation Amortisseur de chocs hydraulique
EP0317327A3 (en) * 1987-11-19 1989-12-06 Atsugi Motor Parts Co. Ltd. Hydraulic shock absorber
FR2625277A1 (fr) * 1987-12-28 1989-06-30 Tokico Ltd Amortisseur hydraulique
EP0330449A2 (fr) * 1988-02-22 1989-08-30 Unisia Jecs Corporation Amortisseur de chocs
EP0330449A3 (en) * 1988-02-22 1990-09-19 Atsugi Motor Parts Co. Ltd. Shock absorber
EP0609909A1 (fr) * 1988-02-22 1994-08-10 Unisia Jecs Corporation Amortisseur de chocs
ES2126425A1 (es) * 1994-02-26 1999-03-16 Fuchtel & Sachs Ag Amortiguador de vibraciones telescopico.
FR2796690A1 (fr) * 1999-07-23 2001-01-26 Peugeot Citroen Automobiles Sa Dispositif d'amortissement a effort limite

Also Published As

Publication number Publication date
ES242154Y (es) 1980-05-16
FR2420693B3 (fr) 1981-11-20
ES245308U (es) 1980-01-01
DE2910381A1 (de) 1979-10-11
ES245308Y (es) 1980-06-16
DE2910381C2 (fr) 1988-09-29
IT1107174B (it) 1985-11-25
ES242154U (es) 1979-12-01
IT7867621A0 (it) 1978-03-21

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