ES479481A1 - Actuator with cushioned piston. - Google Patents

Actuator with cushioned piston.

Info

Publication number
ES479481A1
ES479481A1 ES479481A ES479481A ES479481A1 ES 479481 A1 ES479481 A1 ES 479481A1 ES 479481 A ES479481 A ES 479481A ES 479481 A ES479481 A ES 479481A ES 479481 A1 ES479481 A1 ES 479481A1
Authority
ES
Spain
Prior art keywords
chamber
valve
actuator
cushioning
interacting
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.)
Expired
Application number
ES479481A
Other languages
Spanish (es)
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.)
PARISIENNE OUTILLAGE
Compagnie Parisienne dOutillage a Air Comprime SA
Original Assignee
PARISIENNE OUTILLAGE
Compagnie Parisienne dOutillage a Air Comprime 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 PARISIENNE OUTILLAGE, Compagnie Parisienne dOutillage a Air Comprime SA filed Critical PARISIENNE OUTILLAGE
Publication of ES479481A1 publication Critical patent/ES479481A1/en
Expired 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
    • F15B15/223—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke having a piston with a piston extension or piston recess which completely seals the main fluid outlet as the piston approaches its end position

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Driven Valves (AREA)
  • Fluid-Damping Devices (AREA)
  • Actuator (AREA)

Abstract

Starting device for an actuator with cushioned piston, comprising on one face a cushioning ring (6) interacting at the end of the stroke with a floating valve (7) arranged in a circular housing (8) in the innermost end of the actuator to form a cushioning chamber. Said housing (8) has one side open onto the cushioning chamber (20) and comprises a retaining means (9) for the valve (7). A second side (81) opposite it forms with the opposing wall of the periphery of the valve an intermediate chamber (82) connected by a passage (80) to a chamber (31) for commanding the actuator. Said valve comprises a first means (70) of permanent communication between the cushioning chamber and the intermediate chamber, a second means (73) for closing off the passage between the intermediate chamber and the command chamber when the valve is pressed against said retaining means under the effect of the pressure of the command chamber and a third sealing means (72) interacting with the ring.
ES479481A 1978-04-14 1979-04-10 Actuator with cushioned piston. Expired ES479481A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7811047A FR2422848A1 (en) 1978-04-14 1978-04-14 CYLINDER CUSHIONING AND STARTING DEVICE

Publications (1)

Publication Number Publication Date
ES479481A1 true ES479481A1 (en) 1980-02-01

Family

ID=9207141

Family Applications (1)

Application Number Title Priority Date Filing Date
ES479481A Expired ES479481A1 (en) 1978-04-14 1979-04-10 Actuator with cushioned piston.

Country Status (3)

Country Link
EP (1) EP0004948A1 (en)
ES (1) ES479481A1 (en)
FR (1) FR2422848A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4458717A (en) * 1983-03-14 1984-07-10 Aeroquip Corporation Cylinder cushion seal
FR2613785B1 (en) * 1987-04-13 1990-11-23 Gratzmuller Claude DIFFERENTIAL HYDRAULIC CYLINDER, WITH DAMPING SYSTEM, FOR THE CONTROL OF ELECTRIC CIRCUIT BREAKERS
DE19502563A1 (en) * 1995-01-27 1996-08-08 Freudenberg Carl Fa Sealing arrangement
CN102900727A (en) * 2012-11-14 2013-01-30 徐州中矿大贝克福尔科技有限公司 Device and method for buffering main oil cylinder of paste filling pump in coal mine
JP6159938B2 (en) 2014-04-14 2017-07-12 Smc株式会社 Fluid pressure cylinder

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB998753A (en) * 1962-12-13 1965-07-21 Parker Hannifin Corp Piston cushion for fluid operated cylinder
IT1087703B (en) * 1976-09-08 1985-06-04 Kupfer Asbest Co GASKET, ESPECIALLY END OF STROKE DAMPING GASKET

Also Published As

Publication number Publication date
EP0004948A1 (en) 1979-10-31
FR2422848A1 (en) 1979-11-09
FR2422848B1 (en) 1980-09-05

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19971001