DE3774088D1 - ACTUATING DEVICE WITH TWO MECHANICALLY COUPLED, SINGLE-ACTING HYDRAULIC CYLINDERS. - Google Patents

ACTUATING DEVICE WITH TWO MECHANICALLY COUPLED, SINGLE-ACTING HYDRAULIC CYLINDERS.

Info

Publication number
DE3774088D1
DE3774088D1 DE8787118227T DE3774088T DE3774088D1 DE 3774088 D1 DE3774088 D1 DE 3774088D1 DE 8787118227 T DE8787118227 T DE 8787118227T DE 3774088 T DE3774088 T DE 3774088T DE 3774088 D1 DE3774088 D1 DE 3774088D1
Authority
DE
Germany
Prior art keywords
hydraulic cylinders
mechanically coupled
acting hydraulic
actuating device
pistons
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 - Lifetime
Application number
DE8787118227T
Other languages
German (de)
Inventor
Manfred Tries
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
Priority to DE8787118227T priority Critical patent/DE3774088D1/en
Application granted granted Critical
Publication of DE3774088D1 publication Critical patent/DE3774088D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/18—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors used in combination for obtaining stepwise operation of a single controlled member

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Fluid-Driven Valves (AREA)
  • Vehicle Body Suspensions (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Actuator (AREA)

Abstract

The equipment is positionally adjusted by means of two mechanically coupled single acting hydraulic cylinders (5,6) with pistons (7,8). The pistons co-operate with central stationary shafts to form a system of valves (10-18). When the first piston in its mid position the pressure line (20) and unpressurised outlet line are blocked. When the first piston is between its mid position and outer end position the first cylinder is connected to the outlet pipe (23) and the pressure line is blocked.
DE8787118227T 1986-12-11 1987-12-09 ACTUATING DEVICE WITH TWO MECHANICALLY COUPLED, SINGLE-ACTING HYDRAULIC CYLINDERS. Expired - Lifetime DE3774088D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8787118227T DE3774088D1 (en) 1986-12-11 1987-12-09 ACTUATING DEVICE WITH TWO MECHANICALLY COUPLED, SINGLE-ACTING HYDRAULIC CYLINDERS.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3642300 1986-12-11
DE19873722216 DE3722216A1 (en) 1986-12-11 1987-07-04 ACTUATING DEVICE WITH TWO MECHANICALLY COUPLED, SINGLE-ACTING HYDRAULIC CYLINDERS
DE8787118227T DE3774088D1 (en) 1986-12-11 1987-12-09 ACTUATING DEVICE WITH TWO MECHANICALLY COUPLED, SINGLE-ACTING HYDRAULIC CYLINDERS.

Publications (1)

Publication Number Publication Date
DE3774088D1 true DE3774088D1 (en) 1991-11-28

Family

ID=25850221

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19873722216 Withdrawn DE3722216A1 (en) 1986-12-11 1987-07-04 ACTUATING DEVICE WITH TWO MECHANICALLY COUPLED, SINGLE-ACTING HYDRAULIC CYLINDERS
DE8787118227T Expired - Lifetime DE3774088D1 (en) 1986-12-11 1987-12-09 ACTUATING DEVICE WITH TWO MECHANICALLY COUPLED, SINGLE-ACTING HYDRAULIC CYLINDERS.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19873722216 Withdrawn DE3722216A1 (en) 1986-12-11 1987-07-04 ACTUATING DEVICE WITH TWO MECHANICALLY COUPLED, SINGLE-ACTING HYDRAULIC CYLINDERS

Country Status (3)

Country Link
EP (1) EP0271076B1 (en)
AT (1) ATE68853T1 (en)
DE (2) DE3722216A1 (en)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1056410B (en) * 1956-09-12 1959-04-30 Stockey & Schmitz Hydraulic lifting device for agricultural equipment
US2926634A (en) * 1958-07-18 1960-03-01 Sherman Products Inc Flow control valve
FR1563208A (en) * 1968-03-01 1969-04-11
DE6603749U (en) * 1968-07-23 1969-11-06 Licentia Gmbh PNEUMATIC OR HYDRAULIC PISTON DRIVE WITH A CENTER POSITION BETWEEN ITS END POSITIONS
US3559536A (en) * 1968-09-11 1971-02-02 Exxon Production Research Co Multiposition shaft actuator
DE2152461A1 (en) * 1971-10-21 1973-04-26 Fendt & Co Xaver TRAILER ROLLER
US4028820A (en) * 1975-12-31 1977-06-14 Douglas Dynamics Corporation Hydraulic system for vehicle mounted snowplow blade
US4572315A (en) * 1984-02-09 1986-02-25 Valley Engineering, Inc. Power hitch
DE3439506C1 (en) * 1984-10-27 1986-03-27 Ing. Alfred Schmidt Gmbh, 7822 St Blasien snow plow
DE8632321U1 (en) * 1986-12-03 1987-01-29 Karl Kässbohrer Fahrzeugwerke GmbH, 7900 Ulm Snow groomer with equipment carrier

Also Published As

Publication number Publication date
EP0271076A2 (en) 1988-06-15
EP0271076B1 (en) 1991-10-23
DE3722216A1 (en) 1988-06-23
EP0271076A3 (en) 1989-06-14
ATE68853T1 (en) 1991-11-15

Similar Documents

Publication Publication Date Title
CA2089638A1 (en) Rotary for use in a power tong
CA2211474A1 (en) Pressure intensifier for fluids, particularly for hydraulic liquids
DE69208435D1 (en) Hydraulic fluid cylinder with pressure intensifier
GB1347758A (en) Hydraulic device
DE3671085D1 (en) SEALING DEVICE ON A PISTON CYLINDER ARRANGEMENT, IN PARTICULAR TO SEAL THE VALVE CONE ON VALVES WITH PRESSURE COMPENSATION.
WO1995025028A3 (en) Hydraulic actuating systems
DE3774088D1 (en) ACTUATING DEVICE WITH TWO MECHANICALLY COUPLED, SINGLE-ACTING HYDRAULIC CYLINDERS.
GB1535538A (en) Injection moulding machine closing mechanism
AU2750099A (en) Aggregate of pressure cylinders
ES2137382T3 (en) HYDRAULIC LOCKING DEVICE FOR QUICK COUPLINGS IN CONSTRUCTION MACHINES.
WO1990012714A3 (en) Master cylinder for a hydraulic brake and steering brake system
SE8600840L (en) DEVICE FOR HYDRAULIC PISTON CYLINDER AND USE OF THE SAME
ATE175151T1 (en) SWING PISTON PRESS
ES1023906U (en) Pneumatically actuated hydraulic multi metering device.
SE8404463D0 (en) HYDRAULIC OR PNEUMATIC AID VALVE
WO1988001729A3 (en) Apparatus for monitoring flow of a fluid along a conduit
GB2238362A (en) Hydraulic apparatus
EP0285435A3 (en) A ram for a press
RU2002129853A (en) HYDRO-PNEUMATIC CONTROL SYSTEM OF A VOLUME-FREE TRANSMISSION
JPS5762981A (en) Underwater pump
RU93009322A (en) PRESS FOR THE MANUFACTURING OF CONSTRUCTION PRODUCTS
RU2001123638A (en) Hydraulic drive
JPS59163203U (en) Reciprocating motion switching device for double-tube fluid pressure driven piston
JPS6218406U (en)
UA11112A (en) Hydraulic system of agricultural machine

Legal Events

Date Code Title Description
8364 No opposition during term of opposition