FR2324916A1 - FLUID ACTUATED CYLINDER-PISTON ASSEMBLY - Google Patents

FLUID ACTUATED CYLINDER-PISTON ASSEMBLY

Info

Publication number
FR2324916A1
FR2324916A1 FR7624754A FR7624754A FR2324916A1 FR 2324916 A1 FR2324916 A1 FR 2324916A1 FR 7624754 A FR7624754 A FR 7624754A FR 7624754 A FR7624754 A FR 7624754A FR 2324916 A1 FR2324916 A1 FR 2324916A1
Authority
FR
France
Prior art keywords
piston
cylinder
piston assembly
unit
fluid actuated
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
FR7624754A
Other languages
French (fr)
Other versions
FR2324916B3 (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.)
ATTREZZATURE MEC OLEODINAM
Original Assignee
ATTREZZATURE MEC OLEODINAM
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 ATTREZZATURE MEC OLEODINAM filed Critical ATTREZZATURE MEC OLEODINAM
Publication of FR2324916A1 publication Critical patent/FR2324916A1/en
Application granted granted Critical
Publication of FR2324916B3 publication Critical patent/FR2324916B3/fr
Granted 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • F15B11/036—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of servomotors having a plurality of working chambers
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/405—Flow control characterised by the type of flow control means or valve
    • F15B2211/40515—Flow control characterised by the type of flow control means or valve with variable throttles or orifices
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/455—Control of flow in the feed line, i.e. meter-in control
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/40—Flow control
    • F15B2211/46—Control of flow in the return line, i.e. meter-out control
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7055—Linear output members having more than two chambers

Landscapes

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

Abstract

In order for large forces to be produced by a unit which has a limited diameter and a low fluid pressure, the cylinder-piston unit has a hollow piston (14), inside which there is an auxiliary piston (40) which slides in a sealed manner in the piston, and is fixed relative to the cylinder (10). This auxiliary piston (40) divides the recess of the hollow piston (14) into two chambers (24,26) which can be supplied with the pressurised fluid in order to exert a force in addition to that provided by the fluid in the cylinder (10). The unit is used in servocontrol mechanisms or in presses.
FR7624754A 1975-09-19 1976-08-13 FLUID ACTUATED CYLINDER-PISTON ASSEMBLY Granted FR2324916A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2743575A IT1042708B (en) 1975-09-19 1975-09-19 PISTON CYLINDER GROUP WITH FLUID DYNAMIC DRIVE

Publications (2)

Publication Number Publication Date
FR2324916A1 true FR2324916A1 (en) 1977-04-15
FR2324916B3 FR2324916B3 (en) 1979-05-04

Family

ID=11221629

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7624754A Granted FR2324916A1 (en) 1975-09-19 1976-08-13 FLUID ACTUATED CYLINDER-PISTON ASSEMBLY

Country Status (5)

Country Link
JP (1) JPS5240277A (en)
CH (1) CH609428A5 (en)
DE (1) DE2557664A1 (en)
FR (1) FR2324916A1 (en)
IT (1) IT1042708B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2739149A1 (en) * 1995-09-25 1997-03-28 Dk Le Guen Et Hemidy Four-way hydraulic cylinder
FR2753751A1 (en) * 1996-09-23 1998-03-27 Chabas & Besson Hydraulique Ma Single acting hydraulic lifting jack
WO2005093262A1 (en) * 2004-03-11 2005-10-06 Atkisek Corporation Innerscoping hydraulic system

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3408909A1 (en) * 1984-03-10 1985-09-12 BBC Aktiengesellschaft Brown, Boveri & Cie., Baden, Aargau HYDRAULIC DRIVE
SE455634B (en) * 1986-09-24 1988-07-25 Volvo Ab MOTOR VEHICLE COUPLING FOR A MECHANICAL, STEP SWITCHED AUTOMATIC GEAR
DE3635042C2 (en) * 1986-10-15 1995-08-31 Horst Baltschun Hydraulic or pneumatic cylinders
DE3809461A1 (en) * 1988-03-21 1989-10-12 Mueller Hans Werner Double-stroke cylinder
DE3827031A1 (en) * 1988-08-10 1990-02-15 Schenck Ag Carl Loading cylinder with a hollow piston rod
CN102758809A (en) * 2012-07-19 2012-10-31 江苏速升自动化装备股份有限公司 Air cylinder with oriented function
DE102012020581A1 (en) * 2012-10-22 2014-04-24 Robert Bosch Gmbh Hydraulic circuit for a hydraulic axis and a hydraulic axis

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2739149A1 (en) * 1995-09-25 1997-03-28 Dk Le Guen Et Hemidy Four-way hydraulic cylinder
FR2753751A1 (en) * 1996-09-23 1998-03-27 Chabas & Besson Hydraulique Ma Single acting hydraulic lifting jack
WO2005093262A1 (en) * 2004-03-11 2005-10-06 Atkisek Corporation Innerscoping hydraulic system
US7448310B2 (en) 2004-03-11 2008-11-11 Atkisek Corporation Innerscoping hydraulic system
CN1950615B (en) * 2004-03-11 2010-11-24 阿特基塞克公司 Hydraulic cylinder apparatus and innerscoping hydraulic system

Also Published As

Publication number Publication date
DE2557664A1 (en) 1977-03-24
JPS5240277A (en) 1977-03-29
FR2324916B3 (en) 1979-05-04
IT1042708B (en) 1980-01-30
CH609428A5 (en) 1979-02-28

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Legal Events

Date Code Title Description
ST Notification of lapse