IT945199B - IMPROVEMENT IN HYDRAULIC CONTROL SYSTEMS WITH FLEXIBLE PIPES - Google Patents

IMPROVEMENT IN HYDRAULIC CONTROL SYSTEMS WITH FLEXIBLE PIPES

Info

Publication number
IT945199B
IT945199B IT5440871A IT5440871A IT945199B IT 945199 B IT945199 B IT 945199B IT 5440871 A IT5440871 A IT 5440871A IT 5440871 A IT5440871 A IT 5440871A IT 945199 B IT945199 B IT 945199B
Authority
IT
Italy
Prior art keywords
improvement
hydraulic control
control systems
flexible pipes
pipes
Prior art date
Application number
IT5440871A
Other languages
Italian (it)
Original Assignee
Applied Power Ind Inc
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 Applied Power Ind Inc filed Critical Applied Power Ind Inc
Application granted granted Critical
Publication of IT945199B publication Critical patent/IT945199B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/32—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
    • E02F3/308—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom working outwardly
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/425—Drive systems for dipper-arms, backhoes or the like
    • 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
    • E02F9/2004—Control mechanisms, e.g. control levers
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/10—Special arrangements for operating the actuated device with or without using fluid pressure, e.g. for emergency use
    • 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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/16—Special measures for feedback, e.g. by a follow-up device
    • 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
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/16—Systems essentially having two or more interacting servomotors, e.g. multi-stage

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Operation Control Of Excavators (AREA)
  • Fluid-Pressure Circuits (AREA)
IT5440871A 1971-06-25 1971-11-29 IMPROVEMENT IN HYDRAULIC CONTROL SYSTEMS WITH FLEXIBLE PIPES IT945199B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15662071A 1971-06-25 1971-06-25

Publications (1)

Publication Number Publication Date
IT945199B true IT945199B (en) 1973-05-10

Family

ID=22560327

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5440871A IT945199B (en) 1971-06-25 1971-11-29 IMPROVEMENT IN HYDRAULIC CONTROL SYSTEMS WITH FLEXIBLE PIPES

Country Status (9)

Country Link
AU (1) AU3641271A (en)
CA (1) CA951224A (en)
CH (1) CH536962A (en)
DE (1) DE2230897A1 (en)
FR (1) FR2142900B1 (en)
GB (1) GB1383779A (en)
IT (1) IT945199B (en)
NL (1) NL7116950A (en)
SE (1) SE373415B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3239596A1 (en) * 1982-10-26 1984-05-03 Alho, Harry, 78053 Nas PRESSURE CONTROLLED TOOL
US4526201A (en) * 1982-11-04 1985-07-02 Spectra-Physics, Inc. Four-way valve with internal pilot
DE68913412T2 (en) * 1988-09-08 1994-09-29 Caterpillar Inc Intuitive control lever for an implement.
US5002454A (en) * 1988-09-08 1991-03-26 Caterpillar Inc. Intuitive joystick control for a work implement
DE69004287T2 (en) * 1989-02-16 1994-02-24 Kubota Kk Hydraulic pipe arrangement for a backhoe.
FR3049014B1 (en) * 2016-03-17 2018-07-27 Agram REMOTE CONTROL OF HYDRAULIC EQUIPMENT

Also Published As

Publication number Publication date
GB1383779A (en) 1974-02-12
CA951224A (en) 1974-07-16
FR2142900A1 (en) 1973-02-02
SE373415B (en) 1975-02-03
CH536962A (en) 1973-05-15
AU3641271A (en) 1973-06-07
DE2230897A1 (en) 1972-12-28
FR2142900B1 (en) 1975-08-29
NL7116950A (en) 1972-12-28

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