AU512429B2 - Hydraulic control - Google Patents

Hydraulic control

Info

Publication number
AU512429B2
AU512429B2 AU30095/77A AU3009577A AU512429B2 AU 512429 B2 AU512429 B2 AU 512429B2 AU 30095/77 A AU30095/77 A AU 30095/77A AU 3009577 A AU3009577 A AU 3009577A AU 512429 B2 AU512429 B2 AU 512429B2
Authority
AU
Australia
Prior art keywords
hydraulic control
hydraulic
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
AU30095/77A
Other versions
AU3009577A (en
Inventor
D. L Horbach
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.)
Massey Ferguson Inc
Original Assignee
Massey Ferguson 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
Priority claimed from US05/746,572 external-priority patent/US4085855A/en
Application filed by Massey Ferguson Inc filed Critical Massey Ferguson Inc
Publication of AU3009577A publication Critical patent/AU3009577A/en
Application granted granted Critical
Publication of AU512429B2 publication Critical patent/AU512429B2/en
Expired legal-status Critical Current

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
    • E02F3/36—Component parts
    • E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms
    • E02F3/382—Connections to the frame; Supports for booms or arms
    • E02F3/384—Connections to the frame; Supports for booms or arms the boom being pivotable relative to the frame about a vertical axis
    • 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
    • F15B13/01—Locking-valves or other detent i.e. load-holding devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)
  • Shovels (AREA)
  • Control Of Position Or Direction (AREA)
AU30095/77A 1976-12-01 1977-10-27 Hydraulic control Expired AU512429B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
USUS746572 1976-12-01
US05/746,572 US4085855A (en) 1976-02-02 1976-12-01 Mechanism control

Publications (2)

Publication Number Publication Date
AU3009577A AU3009577A (en) 1979-05-03
AU512429B2 true AU512429B2 (en) 1980-10-03

Family

ID=25001416

Family Applications (1)

Application Number Title Priority Date Filing Date
AU30095/77A Expired AU512429B2 (en) 1976-12-01 1977-10-27 Hydraulic control

Country Status (7)

Country Link
JP (1) JPS5377975A (en)
AU (1) AU512429B2 (en)
DE (1) DE2753073A1 (en)
ES (1) ES464632A2 (en)
GB (1) GB1594486A (en)
IT (1) IT1114678B (en)
ZA (1) ZA776451B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4139379A1 (en) * 1991-11-29 1993-06-24 Dfa Fertigungs Und Anlagenbau Mobile remote-controlled machine for demolition, loading, and digging - has hydraulic cylinders, which are fixed to permit independent control consisting of proportional, path and double return valves

Also Published As

Publication number Publication date
AU3009577A (en) 1979-05-03
IT1114678B (en) 1986-01-27
ES464632A2 (en) 1978-10-01
ZA776451B (en) 1978-08-30
GB1594486A (en) 1981-07-30
JPS5377975A (en) 1978-07-10
DE2753073A1 (en) 1978-06-08

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