FR1542976A - Dispositif de commande hydraulique - Google Patents

Dispositif de commande hydraulique

Info

Publication number
FR1542976A
FR1542976A FR125059A FR125059A FR1542976A FR 1542976 A FR1542976 A FR 1542976A FR 125059 A FR125059 A FR 125059A FR 125059 A FR125059 A FR 125059A FR 1542976 A FR1542976 A FR 1542976A
Authority
FR
France
Prior art keywords
control device
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
FR125059A
Other languages
English (en)
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.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor Co
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 US588481A external-priority patent/US3400634A/en
Application filed by Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Priority to FR125059A priority Critical patent/FR1542976A/fr
Application granted granted Critical
Publication of FR1542976A publication Critical patent/FR1542976A/fr
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
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/044—Removal or measurement of undissolved gas, e.g. de-aeration, venting or bleeding
    • 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
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/431—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like
    • E02F3/432—Control of dipper or bucket position; Control of sequence of drive operations for bucket-arms, front-end loaders, dumpers or the like for keeping the bucket in a predetermined position or attitude
    • 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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
FR125059A 1966-10-21 1967-10-19 Dispositif de commande hydraulique Expired FR1542976A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR125059A FR1542976A (fr) 1966-10-21 1967-10-19 Dispositif de commande hydraulique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US588481A US3400634A (en) 1966-10-21 1966-10-21 Vent means for hydraulic circuit
FR125059A FR1542976A (fr) 1966-10-21 1967-10-19 Dispositif de commande hydraulique

Publications (1)

Publication Number Publication Date
FR1542976A true FR1542976A (fr) 1968-10-18

Family

ID=26180136

Family Applications (1)

Application Number Title Priority Date Filing Date
FR125059A Expired FR1542976A (fr) 1966-10-21 1967-10-19 Dispositif de commande hydraulique

Country Status (1)

Country Link
FR (1) FR1542976A (fr)

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