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GB1366457A - Fluid operated actuator - Google Patents

Fluid operated actuator

Info

Publication number
GB1366457A
GB1366457A GB2020772A GB2020772A GB1366457A GB 1366457 A GB1366457 A GB 1366457A GB 2020772 A GB2020772 A GB 2020772A GB 2020772 A GB2020772 A GB 2020772A GB 1366457 A GB1366457 A GB 1366457A
Authority
GB
United Kingdom
Prior art keywords
piston
fluid operated
projection
cylinder
sleeve
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
GB2020772A
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.)
Poclain SA
Original Assignee
Poclain 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 Poclain SA filed Critical Poclain SA
Publication of GB1366457A publication Critical patent/GB1366457A/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
    • F15B15/222—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 throttles 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)
  • Actuator (AREA)

Abstract

1366457 Fluid operated actuators POCLAIN 1 May 1972 [24 May 1971] 20207/72 Heading F1D In a fluid operated actuator wherein a piston 2 is cushioned at the end of its stroke in a cylinder 1 by a projection 15 on the piston 2 entering a cylindrical chamber 10 in the end of the cylinder, the projection 15 or the wall of chamber 10 is deformable so that if a dangerously high pressure occurs in the cylinder permanent deformation of the latter is,prevented. The projection 15 is in the form of a hollow resilient sleeve provided with a through passage 19. The sleeve may be cylindrical, as shown, or provided with a tapering forward end. A nut 13 screwed on to the end of the piston rod 5 clamps the sleeve 15 between the piston 2 and a shoulder 16 on the rod 5.
GB2020772A 1971-05-24 1972-05-01 Fluid operated actuator Expired GB1366457A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7118647A FR2138342B1 (en) 1971-05-24 1971-05-24

Publications (1)

Publication Number Publication Date
GB1366457A true GB1366457A (en) 1974-09-11

Family

ID=9077498

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2020772A Expired GB1366457A (en) 1971-05-24 1972-05-01 Fluid operated actuator

Country Status (7)

Country Link
US (1) US3786724A (en)
BE (1) BE782245A (en)
DE (1) DE2223967A1 (en)
ES (1) ES403091A1 (en)
FR (1) FR2138342B1 (en)
GB (1) GB1366457A (en)
IT (1) IT958847B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4352318A (en) * 1980-03-06 1982-10-05 Miller Fluid Power Corporation Expandable cushion plunger for piston and cylinder devices
US4635536A (en) * 1983-09-19 1987-01-13 Miller Fluid Power Corporation Cylinder locking apparatus
DE4134063A1 (en) * 1991-10-15 1993-04-22 Festo Kg LINEAR ACTUATOR
JP2598210B2 (en) * 1992-12-01 1997-04-09 エスエムシー株式会社 Cylinder device
DE19522966A1 (en) * 1995-06-27 1997-01-02 Knorr Bremse Systeme Hydropneumatic clutch booster, in particular for motor vehicles
US6491143B1 (en) 1999-12-30 2002-12-10 Diebolt International, Inc. Low impact gas spring
DE10305850A1 (en) * 2003-02-12 2004-08-26 Bosch Rexroth Ag Damping system for piston in pressure bore has ring shaped extensions with profiled outer surfaces to progressively close the fluid flow as the piston nears each end point
KR100652872B1 (en) * 2005-01-03 2006-12-01 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 Sylinder cushion device
EP1998054B1 (en) * 2007-05-24 2014-08-13 Parker Origa Holding AG Pneumatic cylinder with self-adjusting cushioning at the end of stroke and corresponding method
AT504592B1 (en) * 2007-05-24 2008-06-15 Hoerbiger Origa Holding Ag Piston-rod-less pneumatic cylinder, has stroke elements acted on damping duct, where ventilation duct to be opened by stroke elements, where stroke element connected to outlet duct

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2493602A (en) * 1947-12-31 1950-01-03 Vance C Sterrett Pressure fluid motor
US2642845A (en) * 1950-12-20 1953-06-23 Westinghouse Air Brake Co Piston cushioning apparatus
FR1047170A (en) * 1951-04-28 1953-12-11 Machine parts and their combined controls; electric, pneumatic, hydraulic or mechanical
US2911952A (en) * 1955-04-28 1959-11-10 Renault Double-acting pneumatic jack
US2884903A (en) * 1957-09-13 1959-05-05 Westinghouse Air Brake Co Cushioned piston assemblage for cylinders

Also Published As

Publication number Publication date
FR2138342A1 (en) 1973-01-05
US3786724A (en) 1974-01-22
DE2223967A1 (en) 1972-12-07
ES403091A1 (en) 1975-04-16
BE782245A (en) 1972-08-16
FR2138342B1 (en) 1974-03-08
IT958847B (en) 1973-10-30

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee