FR2267488A1 - Hydraulic shock absorber with coaxial chambers - has cylinder with venting holes for connecting to a compensating chamber - Google Patents

Hydraulic shock absorber with coaxial chambers - has cylinder with venting holes for connecting to a compensating chamber

Info

Publication number
FR2267488A1
FR2267488A1 FR7510276A FR7510276A FR2267488A1 FR 2267488 A1 FR2267488 A1 FR 2267488A1 FR 7510276 A FR7510276 A FR 7510276A FR 7510276 A FR7510276 A FR 7510276A FR 2267488 A1 FR2267488 A1 FR 2267488A1
Authority
FR
France
Prior art keywords
cylinder
chamber
separator tube
shock absorber
hydraulic shock
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.)
Withdrawn
Application number
FR7510276A
Other languages
French (fr)
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.)
Volkswagen AG
Original Assignee
Volkswagen AG
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 Volkswagen AG filed Critical Volkswagen AG
Publication of FR2267488A1 publication Critical patent/FR2267488A1/en
Withdrawn legal-status Critical Current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
    • F16F9/06—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using both gas and liquid
    • F16F9/062—Bi-tubular units

Landscapes

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

Abstract

An outside housing tube encloses a separator tube and an inner cylinder, all three tubular being concentric. The cylinder has a piston with two opposite flow one way valves and the cylinder base has similar valves which contact the cylinder chamber with an end chamber connected to the chamber between the housing cylinder and the separator tube by channels. The piston rod passes through the opposite end of the cylinder and through a leakage chamber connected to the chamber between the cylinder and the separator tube. The cyinder has at its end, under the leakage chamber, channels for connecting with the chamber between the cylinder and separator tube. These venting channels prevent foaming of the hydraulic fluid and reduce noise.
FR7510276A 1974-04-09 1975-04-02 Hydraulic shock absorber with coaxial chambers - has cylinder with venting holes for connecting to a compensating chamber Withdrawn FR2267488A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742417190 DE2417190A1 (en) 1974-04-09 1974-04-09 HYDRAULIC TWIN TUBE VIBRATION DAMPER

Publications (1)

Publication Number Publication Date
FR2267488A1 true FR2267488A1 (en) 1975-11-07

Family

ID=5912541

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7510276A Withdrawn FR2267488A1 (en) 1974-04-09 1975-04-02 Hydraulic shock absorber with coaxial chambers - has cylinder with venting holes for connecting to a compensating chamber

Country Status (3)

Country Link
DE (1) DE2417190A1 (en)
FR (1) FR2267488A1 (en)
IT (1) IT1034776B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0298245A2 (en) * 1987-07-04 1989-01-11 Robert Bosch Gmbh Damping device
FR3002998A1 (en) * 2013-03-08 2014-09-12 Peugeot Citroen Automobiles Sa HYDRAULIC SHOCK ABSORBER, IN PARTICULAR FOR A VEHICLE SUSPENSION DEVICE.
WO2015004701A1 (en) * 2013-07-12 2015-01-15 Showa Corporation Hydraulic shock absorber and cover member
CN112741712A (en) * 2019-10-31 2021-05-04 杭州启明医疗器械股份有限公司 Hydraulically driven interventional instrument delivery system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH672615A5 (en) * 1987-02-12 1989-12-15 Walter Baiker Dipl Ing
JP3989058B2 (en) * 1997-08-05 2007-10-10 株式会社ショーワ Dust cover mounting structure
CN105041944A (en) * 2015-06-23 2015-11-11 李华良 Automobile damper

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0298245A2 (en) * 1987-07-04 1989-01-11 Robert Bosch Gmbh Damping device
EP0298245A3 (en) * 1987-07-04 1989-07-05 Robert Bosch Gmbh Damping device
FR3002998A1 (en) * 2013-03-08 2014-09-12 Peugeot Citroen Automobiles Sa HYDRAULIC SHOCK ABSORBER, IN PARTICULAR FOR A VEHICLE SUSPENSION DEVICE.
WO2015004701A1 (en) * 2013-07-12 2015-01-15 Showa Corporation Hydraulic shock absorber and cover member
CN105378324A (en) * 2013-07-12 2016-03-02 株式会社昭和 Hydraulic shock absorber and cover member
US10076941B2 (en) 2013-07-12 2018-09-18 Showa Corporation Hydraulic shock absorber and cover member
CN112741712A (en) * 2019-10-31 2021-05-04 杭州启明医疗器械股份有限公司 Hydraulically driven interventional instrument delivery system
CN112741712B (en) * 2019-10-31 2022-11-08 杭州启明医疗器械股份有限公司 Hydraulically driven interventional instrument delivery system

Also Published As

Publication number Publication date
DE2417190A1 (en) 1975-10-23
IT1034776B (en) 1979-10-10

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Legal Events

Date Code Title Description
ST Notification of lapse