FR2423661A1 - DEVICE FOR ADJUSTING THE POSITION OF A DEVICE PROVIDED WITH A MULTIPLICITY OF ADJUSTING HYDRAULIC CYLINDERS - Google Patents

DEVICE FOR ADJUSTING THE POSITION OF A DEVICE PROVIDED WITH A MULTIPLICITY OF ADJUSTING HYDRAULIC CYLINDERS

Info

Publication number
FR2423661A1
FR2423661A1 FR7909612A FR7909612A FR2423661A1 FR 2423661 A1 FR2423661 A1 FR 2423661A1 FR 7909612 A FR7909612 A FR 7909612A FR 7909612 A FR7909612 A FR 7909612A FR 2423661 A1 FR2423661 A1 FR 2423661A1
Authority
FR
France
Prior art keywords
multiplicity
hydraulic
adjusting
adjustment
cylinders
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.)
Pending
Application number
FR7909612A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2423661A1 publication Critical patent/FR2423661A1/en
Pending 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
    • F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
    • F15B7/06—Details
    • F15B7/08—Input units; Master units
    • 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
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/22—Synchronisation of the movement of two or more servomotors
    • 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
    • F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
    • F15B7/003—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors with multiple outputs
    • 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
    • F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
    • F15B7/005—With rotary or crank input

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Actuator (AREA)
  • Fish Paste Products (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Mechanical Control Devices (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

Invention concernant un appareil de manoeuvre à pression de fluide. Appareil de réglage, pourvu d'une multiplicité de cylindres hydrauliques d'ajustement alimentés simultanément Par des quantités de fluide hydraulique correspondant au réglage désiré. Chacun des cylindres hydrauliques communique avec une chambre de déplacement respective d'une pompe hydraulique commune à tous les cylindres. La pompe comprend un cylindre et une tige de piston se déplaçant axialement à son intérieur. La tige de piston a une forme en gradin pour présenter une multiplicité de surfaces de piston annulaires et concentriques et le diamètre intérieur du cylindre est conformé en gradin de manière correspondante. Devant chaque surface de piston est ainsi formée une chambre de déplacement et ces chambres sont isolées les unes des autres au cours d'une course de travail de la pompe. Application au réglage en hauteur du dessus d'une table ou autre objetInvention relating to a fluid pressure actuator. Adjustment device, provided with a multiplicity of hydraulic adjustment cylinders fed simultaneously with quantities of hydraulic fluid corresponding to the desired adjustment. Each of the hydraulic cylinders communicates with a respective displacement chamber of a hydraulic pump common to all the cylinders. The pump includes a cylinder and a piston rod moving axially therein. The piston rod is stepped in shape to have a multiplicity of annular and concentric piston surfaces and the inside diameter of the cylinder is stepped in corresponding manner. In front of each piston surface is thus formed a displacement chamber and these chambers are isolated from each other during a working stroke of the pump. Application to the height adjustment of the top of a table or other object

FR7909612A 1978-04-18 1979-04-17 DEVICE FOR ADJUSTING THE POSITION OF A DEVICE PROVIDED WITH A MULTIPLICITY OF ADJUSTING HYDRAULIC CYLINDERS Pending FR2423661A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7804408A SE408218B (en) 1978-04-18 1978-04-18 HYDRAL CYLINDER WITH PISTON FOR SAME SUPPLY OF THE SAME QUANTITY OF HYDRAULIC MEDIUM TO EACH AND ONE OF ANY NUMBER OF HYDRAULIC CYLINDERS

Publications (1)

Publication Number Publication Date
FR2423661A1 true FR2423661A1 (en) 1979-11-16

Family

ID=20334658

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7909612A Pending FR2423661A1 (en) 1978-04-18 1979-04-17 DEVICE FOR ADJUSTING THE POSITION OF A DEVICE PROVIDED WITH A MULTIPLICITY OF ADJUSTING HYDRAULIC CYLINDERS

Country Status (11)

Country Link
JP (1) JPS54145885A (en)
CA (1) CA1141626A (en)
CH (1) CH640034A5 (en)
DE (1) DE2914896A1 (en)
DK (1) DK159679A (en)
FI (1) FI791170A (en)
FR (1) FR2423661A1 (en)
GB (1) GB2018905B (en)
NL (1) NL7903003A (en)
NO (1) NO151980C (en)
SE (1) SE408218B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3738741A1 (en) * 1987-11-14 1989-05-24 Teves Gmbh Alfred MASTER CYLINDER
JPH1120438A (en) * 1997-07-04 1999-01-26 Toyota Autom Loom Works Ltd Damper fitting structure
CN102588363B (en) * 2012-02-23 2015-01-28 中冶南方工程技术有限公司 Method and device for synchronizing crystallizer vibration hydraulic cylinders

Also Published As

Publication number Publication date
DK159679A (en) 1979-10-19
CH640034A5 (en) 1983-12-15
GB2018905B (en) 1982-06-03
DE2914896A1 (en) 1979-10-31
SE408218B (en) 1979-05-21
FI791170A (en) 1979-10-19
NO151980C (en) 1985-07-10
NO791181L (en) 1979-10-19
NO151980B (en) 1985-04-01
CA1141626A (en) 1983-02-22
JPS54145885A (en) 1979-11-14
GB2018905A (en) 1979-10-24
NL7903003A (en) 1979-10-22

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