FR2068570B1 - - Google Patents

Info

Publication number
FR2068570B1
FR2068570B1 FR707041504A FR7041504A FR2068570B1 FR 2068570 B1 FR2068570 B1 FR 2068570B1 FR 707041504 A FR707041504 A FR 707041504A FR 7041504 A FR7041504 A FR 7041504A FR 2068570 B1 FR2068570 B1 FR 2068570B1
Authority
FR
France
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
FR707041504A
Other versions
FR2068570A1 (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.)
GLOWNE B ST
Original Assignee
GLOWNE B ST
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 GLOWNE B ST filed Critical GLOWNE B ST
Publication of FR2068570A1 publication Critical patent/FR2068570A1/fr
Application granted granted Critical
Publication of FR2068570B1 publication Critical patent/FR2068570B1/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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • F15B11/032—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of fluid-pressure converters
    • F15B11/0325—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of fluid-pressure converters the fluid-pressure converter increasing the working force after an approach stroke
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
    • F15B2211/216—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being pneumatic-to-hydraulic converters
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/775—Combined control, e.g. control of speed and force for providing a high speed approach stroke with low force followed by a low speed working stroke with high force, e.g. for a hydraulic press

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Hydraulic Motors (AREA)
  • Reciprocating Pumps (AREA)
FR707041504A 1969-11-21 1970-11-19 Expired FR2068570B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL13703069A PL80403B3 (fr) 1969-11-21 1969-11-21

Publications (2)

Publication Number Publication Date
FR2068570A1 FR2068570A1 (fr) 1971-08-27
FR2068570B1 true FR2068570B1 (fr) 1973-02-02

Family

ID=19950994

Family Applications (1)

Application Number Title Priority Date Filing Date
FR707041504A Expired FR2068570B1 (fr) 1969-11-21 1970-11-19

Country Status (7)

Country Link
US (1) US3686856A (fr)
AT (1) AT308327B (fr)
CS (1) CS172917B2 (fr)
DE (1) DE2056936B2 (fr)
FR (1) FR2068570B1 (fr)
HU (1) HU163544B (fr)
PL (1) PL80403B3 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US524184A (en) * 1894-08-07 John p
US2701551A (en) * 1952-02-20 1955-02-08 Westinghouse Air Brake Co Automatic air feed pressure control for rock drills
US3068841A (en) * 1961-01-13 1962-12-18 Robbins & Bendror Associates I Hydraulic pressure system
BE655844A (fr) * 1963-11-29 1965-03-16
US3511133A (en) * 1968-03-06 1970-05-12 Caterpillar Tractor Co Position control for hydraulic jacks

Also Published As

Publication number Publication date
HU163544B (fr) 1973-09-27
CS172917B2 (fr) 1977-01-28
US3686856A (en) 1972-08-29
PL80403B3 (fr) 1975-08-30
FR2068570A1 (fr) 1971-08-27
DE2056936A1 (de) 1971-06-16
DE2056936B2 (de) 1977-02-17
AT308327B (de) 1973-06-25

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Legal Events

Date Code Title Description
ST Notification of lapse