FR2272434A1 - Hydraulic fluid controller for tractor - uses increased hydraulic resistance of function to control other functions - Google Patents

Hydraulic fluid controller for tractor - uses increased hydraulic resistance of function to control other functions

Info

Publication number
FR2272434A1
FR2272434A1 FR7417896A FR7417896A FR2272434A1 FR 2272434 A1 FR2272434 A1 FR 2272434A1 FR 7417896 A FR7417896 A FR 7417896A FR 7417896 A FR7417896 A FR 7417896A FR 2272434 A1 FR2272434 A1 FR 2272434A1
Authority
FR
France
Prior art keywords
tractor
functions
function
control
controllers
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.)
Withdrawn
Application number
FR7417896A
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.)
BOCQUEZ ANDRE
Original Assignee
BOCQUEZ ANDRE
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 BOCQUEZ ANDRE filed Critical BOCQUEZ ANDRE
Priority to FR7417896A priority Critical patent/FR2272434A1/en
Publication of FR2272434A1 publication Critical patent/FR2272434A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • E02F9/226—Safety arrangements, e.g. hydraulic driven fans, preventing cavitation, leakage, overheating
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B9/00—Safety arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Lifting Devices For Agricultural Implements (AREA)

Abstract

Hydraulic fluids which operate various tools and functions on a tractor vary in pressure die to variations in resistance caused for example by a tool meeting an obstacle. Controllers and valves are connected into the hydraulic circuits. When the pressure of the fluid at one function or tool increases and exceeds a threshold set by a value the fluid acts on the controller. When this same fluid exceeds the threshold set by another valve then the fluid acts on the appropriate controller. This action can be repeated on other controllers. Various combinations of actions on tools and controllers is possible .
FR7417896A 1974-05-22 1974-05-22 Hydraulic fluid controller for tractor - uses increased hydraulic resistance of function to control other functions Withdrawn FR2272434A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7417896A FR2272434A1 (en) 1974-05-22 1974-05-22 Hydraulic fluid controller for tractor - uses increased hydraulic resistance of function to control other functions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7417896A FR2272434A1 (en) 1974-05-22 1974-05-22 Hydraulic fluid controller for tractor - uses increased hydraulic resistance of function to control other functions

Publications (1)

Publication Number Publication Date
FR2272434A1 true FR2272434A1 (en) 1975-12-19

Family

ID=9139173

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7417896A Withdrawn FR2272434A1 (en) 1974-05-22 1974-05-22 Hydraulic fluid controller for tractor - uses increased hydraulic resistance of function to control other functions

Country Status (1)

Country Link
FR (1) FR2272434A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0159835A1 (en) * 1984-03-30 1985-10-30 Kabushiki Kaisha Komatsu Seisakusho Method and system for controlling an engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0159835A1 (en) * 1984-03-30 1985-10-30 Kabushiki Kaisha Komatsu Seisakusho Method and system for controlling an engine

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Legal Events

Date Code Title Description
ST Notification of lapse