FR2420674A1 - Verin hydraulique a course regulee - Google Patents

Verin hydraulique a course regulee

Info

Publication number
FR2420674A1
FR2420674A1 FR7807937A FR7807937A FR2420674A1 FR 2420674 A1 FR2420674 A1 FR 2420674A1 FR 7807937 A FR7807937 A FR 7807937A FR 7807937 A FR7807937 A FR 7807937A FR 2420674 A1 FR2420674 A1 FR 2420674A1
Authority
FR
France
Prior art keywords
discharge
hydraulic cylinder
hand
orifices
calibration spring
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Withdrawn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
FR7807937A
Other languages
English (en)
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.)
Renault SAS
Original Assignee
Renault SAS
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 Renault SAS filed Critical Renault SAS
Priority to FR7807937A priority Critical patent/FR2420674A1/fr
Priority to EP79400037A priority patent/EP0004483A1/fr
Priority to ES477298A priority patent/ES477298A1/es
Publication of FR2420674A1 publication Critical patent/FR2420674A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
    • F15B15/224—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having a piston which closes off fluid outlets in the cylinder bore by its own movement

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)

Abstract

Vérin hydraulique à course régulée du type à orifices d'admission et d'évacuation multiples, successivement masqués ou démasqués par le piston dans les courses d'accélération ou décélération. Sur les alimentations du vérin sont disposés des régulateurs de débit d'un type connu en soi, à tiroir coulissant en appui sur un ressort à tarage réglable et équilibré, d'une part, par la pression d'évacuation dans le vérin en amont des orifices d'évacuation et, d'autre part, par la pression en aval de ces orifices, augmentée de celle du ressort de tarage, la face correspondante du tiroir contrôlant l'ouverture du débit d'évacuation du vérin. Application aux vérins hydrauliques à hautes pressions, en particulier pour machines-outils.
FR7807937A 1978-03-20 1978-03-20 Verin hydraulique a course regulee Withdrawn FR2420674A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7807937A FR2420674A1 (fr) 1978-03-20 1978-03-20 Verin hydraulique a course regulee
EP79400037A EP0004483A1 (fr) 1978-03-20 1979-01-23 Vérin hydraulique à course régulée
ES477298A ES477298A1 (es) 1978-03-20 1979-01-31 Dispositivo perfeccionado de gato hidraulico.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7807937A FR2420674A1 (fr) 1978-03-20 1978-03-20 Verin hydraulique a course regulee

Publications (1)

Publication Number Publication Date
FR2420674A1 true FR2420674A1 (fr) 1979-10-19

Family

ID=9206009

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7807937A Withdrawn FR2420674A1 (fr) 1978-03-20 1978-03-20 Verin hydraulique a course regulee

Country Status (3)

Country Link
EP (1) EP0004483A1 (fr)
ES (1) ES477298A1 (fr)
FR (1) FR2420674A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4399968A (en) * 1980-05-16 1983-08-23 Rockwell International Corporation Controlled output force actuator
US5161957A (en) * 1987-05-21 1992-11-10 Vertran Manufacturing Company Hydraulic door actuator
US5107677A (en) * 1987-05-21 1992-04-28 Vertran Manufacturing Company Hydraulic door actuator
DE4305401A1 (de) * 1993-02-22 1994-08-25 Fibro Gmbh Vorrichtung zur Endlagendämpfung eines bewegten Systems
TW468005B (en) * 1998-11-06 2001-12-11 Smc Corp Pneumatic cylinder with cushion mechanism
CN105889173B (zh) 2016-06-16 2017-06-30 朱德伟 液压缓冲装置及包含有该装置的缓冲油缸

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3054384A (en) * 1961-01-12 1962-09-18 Cessna Aircraft Co Piston velocity governor
DE2326417C3 (de) * 1973-05-24 1980-01-10 Maschinenfabrik Glueckauf Beukenberg Gmbh & Co, 4650 Gelsenkirchen Hydraulik-Zylinder mit Endlagendämpfung
US4033235A (en) * 1976-01-26 1977-07-05 Caterpillar Tractor Co. Fluid operated ram

Also Published As

Publication number Publication date
ES477298A1 (es) 1979-07-01
EP0004483A1 (fr) 1979-10-03

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Legal Events

Date Code Title Description
ST Notification of lapse