ES367741A1 - Dispositivo de accionamiento hidraulico para las herramien-tas de trabajo de maquinas para obras de terraplen. - Google Patents

Dispositivo de accionamiento hidraulico para las herramien-tas de trabajo de maquinas para obras de terraplen.

Info

Publication number
ES367741A1
ES367741A1 ES367741A ES367741A ES367741A1 ES 367741 A1 ES367741 A1 ES 367741A1 ES 367741 A ES367741 A ES 367741A ES 367741 A ES367741 A ES 367741A ES 367741 A1 ES367741 A1 ES 367741A1
Authority
ES
Spain
Prior art keywords
oil
valve
return
piston
control
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
ES367741A
Other languages
English (en)
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.)
FRISCH GEB KG EISENWERK
Original Assignee
FRISCH GEB KG EISENWERK
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
Priority claimed from DE19681759867 external-priority patent/DE1759867C/de
Application filed by FRISCH GEB KG EISENWERK filed Critical FRISCH GEB KG EISENWERK
Publication of ES367741A1 publication Critical patent/ES367741A1/es
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
    • 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
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2278—Hydraulic circuits
    • E02F9/2292—Systems with two or more pumps

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
ES367741A 1968-06-15 1969-05-27 Dispositivo de accionamiento hidraulico para las herramien-tas de trabajo de maquinas para obras de terraplen. Expired ES367741A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681759867 DE1759867C (de) 1968-06-15 Hydraulische Steuervorrichtung für Erdbewegungsmaschinen

Publications (1)

Publication Number Publication Date
ES367741A1 true ES367741A1 (es) 1971-04-16

Family

ID=5695829

Family Applications (1)

Application Number Title Priority Date Filing Date
ES367741A Expired ES367741A1 (es) 1968-06-15 1969-05-27 Dispositivo de accionamiento hidraulico para las herramien-tas de trabajo de maquinas para obras de terraplen.

Country Status (4)

Country Link
AT (1) AT291330B (de)
BE (1) BE734107A (de)
ES (1) ES367741A1 (de)
FR (1) FR2010953A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE792617A (fr) * 1971-12-13 1973-06-12 Caterpillar Tractor Co Circuit hydraulique pour un excavateur.
AU631727B2 (en) * 1990-03-09 1992-12-03 Kubota Corporation Hydraulic circuit for a working vehicle having a plurality of hydraulic actuators
EP2564072B1 (de) * 2010-04-30 2016-03-23 Eaton Corporation Kombinationskreislauf aus mehreren flüssigkeitspumpen
KR101976888B1 (ko) 2011-07-01 2019-05-10 이턴 코포레이션 조합의 개방 및 폐쇄 루프 펌프 시스템을 사용하는 유압 시스템

Also Published As

Publication number Publication date
DE1759867A1 (de) 1971-10-14
BE734107A (de) 1969-11-17
FR2010953A1 (de) 1970-02-20
AT291330B (de) 1971-07-12

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