SE393843B - DEVICE FOR A LOAD MANUFACTURING THROUGH A DIRECTION VALVE CONTROLLED HYDRAULIC ENGINE FOR PREVENTING UNCONTROLLABLE LOAD MOVEMENT IN THE EVENT OF LEAK - Google Patents

DEVICE FOR A LOAD MANUFACTURING THROUGH A DIRECTION VALVE CONTROLLED HYDRAULIC ENGINE FOR PREVENTING UNCONTROLLABLE LOAD MOVEMENT IN THE EVENT OF LEAK

Info

Publication number
SE393843B
SE393843B SE7511805A SE7511805A SE393843B SE 393843 B SE393843 B SE 393843B SE 7511805 A SE7511805 A SE 7511805A SE 7511805 A SE7511805 A SE 7511805A SE 393843 B SE393843 B SE 393843B
Authority
SE
Sweden
Prior art keywords
load
leak
event
valve controlled
direction valve
Prior art date
Application number
SE7511805A
Other languages
Swedish (sv)
Other versions
SE7511805L (en
Inventor
O Wennerbo
Original Assignee
Monsun Tison Ab
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 Monsun Tison Ab filed Critical Monsun Tison Ab
Priority to SE7511805A priority Critical patent/SE393843B/en
Priority to DE19762647372 priority patent/DE2647372A1/en
Priority to FR7631728A priority patent/FR2328868A1/en
Publication of SE7511805L publication Critical patent/SE7511805L/en
Publication of SE393843B publication Critical patent/SE393843B/en

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
    • F15B11/003—Systems with load-holding valves
    • 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
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30505—Non-return valves, i.e. check valves
    • 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
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • 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
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3116—Neutral or centre positions the pump port being open in the centre position, e.g. so-called open centre
    • 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
    • F15B2211/30—Directional control
    • F15B2211/315—Directional control characterised by the connections of the valve or valves in the circuit
    • F15B2211/3157—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line
    • F15B2211/31576—Directional control characterised by the connections of the valve or valves in the circuit being connected to a pressure source, an output member and a return line having a single pressure source and a single output member
    • 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
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/321—Directional control characterised by the type of actuation mechanically
    • F15B2211/324—Directional control characterised by the type of actuation mechanically manually, e.g. by using a lever or pedal
    • 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
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/329—Directional control characterised by the type of actuation actuated by fluid pressure
    • 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
    • F15B2211/40—Flow control
    • F15B2211/415—Flow control characterised by the connections of the flow control means in the circuit
    • F15B2211/41554—Flow control characterised by the connections of the flow control means in the circuit being connected to a return line and a directional control valve
    • 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
    • F15B2211/40—Flow control
    • F15B2211/42—Flow control characterised by the type of actuation
    • F15B2211/428—Flow control characterised by the type of actuation actuated by fluid pressure
    • 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
    • F15B2211/40—Flow control
    • F15B2211/47—Flow control in one direction only
    • F15B2211/473—Flow control in one direction only without restriction in the reverse direction
    • 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
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50563—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure
    • F15B2211/50581—Pressure control characterised by the type of pressure control means the pressure control means controlling a differential pressure using counterbalance valves
    • 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
    • F15B2211/80—Other types of control related to particular problems or conditions
    • F15B2211/86—Control during or prevention of abnormal conditions
    • F15B2211/863—Control during or prevention of abnormal conditions the abnormal condition being a hydraulic or pneumatic failure

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
SE7511805A 1975-10-21 1975-10-21 DEVICE FOR A LOAD MANUFACTURING THROUGH A DIRECTION VALVE CONTROLLED HYDRAULIC ENGINE FOR PREVENTING UNCONTROLLABLE LOAD MOVEMENT IN THE EVENT OF LEAK SE393843B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE7511805A SE393843B (en) 1975-10-21 1975-10-21 DEVICE FOR A LOAD MANUFACTURING THROUGH A DIRECTION VALVE CONTROLLED HYDRAULIC ENGINE FOR PREVENTING UNCONTROLLABLE LOAD MOVEMENT IN THE EVENT OF LEAK
DE19762647372 DE2647372A1 (en) 1975-10-21 1976-10-20 DEVICE FOR A LOAD MOVING HYDRAULIC MOTOR TO PREVENT UNCONTROLLED LOAD MOVEMENT IN THE EVENT OF A PIPE BREAKAGE
FR7631728A FR2328868A1 (en) 1975-10-21 1976-10-21 Hydraulic motor line leakage controller - has nonreturn valve in parallel with variable choke valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7511805A SE393843B (en) 1975-10-21 1975-10-21 DEVICE FOR A LOAD MANUFACTURING THROUGH A DIRECTION VALVE CONTROLLED HYDRAULIC ENGINE FOR PREVENTING UNCONTROLLABLE LOAD MOVEMENT IN THE EVENT OF LEAK

Publications (2)

Publication Number Publication Date
SE7511805L SE7511805L (en) 1977-04-22
SE393843B true SE393843B (en) 1977-05-23

Family

ID=20325862

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7511805A SE393843B (en) 1975-10-21 1975-10-21 DEVICE FOR A LOAD MANUFACTURING THROUGH A DIRECTION VALVE CONTROLLED HYDRAULIC ENGINE FOR PREVENTING UNCONTROLLABLE LOAD MOVEMENT IN THE EVENT OF LEAK

Country Status (3)

Country Link
DE (1) DE2647372A1 (en)
FR (1) FR2328868A1 (en)
SE (1) SE393843B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2459894A1 (en) * 1979-06-26 1981-01-16 Poclain Sa Control system for hydraulic ram - contains load limiting device formed by a piloted progressively opening valve
FR2487019A2 (en) * 1980-03-25 1982-01-22 Richier Nle Indle Pressure controlled safety device for hydraulic lifting device - uses electromagnetically operated control valve in non-return valve to hold pressure while load is being lowered
JPS57205639A (en) * 1981-06-12 1982-12-16 Hitachi Constr Mach Co Ltd Closing device for oil-pressure circuit for inertia-mass driving
DE3421172A1 (en) * 1984-06-07 1985-12-12 Eisenwerke Kaiserslautern Göppner GmbH, 6750 Kaiserslautern Device for controlling hydraulic drives
AT386814B (en) * 1986-06-27 1988-10-25 Schwarzmueller Wilhelm Gmbh TRAILER
JPH01105001A (en) * 1987-10-16 1989-04-21 Smc Corp Uniform speed driving valve
DE4105459A1 (en) * 1991-02-21 1992-08-27 Heilmeier & Weinlein HYDRAULIC CONTROL DEVICE
ITTO20020186A1 (en) * 2002-03-06 2003-09-08 Fiat Hitachi Excavators S P A EARTH-MOVING VEHICLE, AND METHOD TO ADJUST THE DESCENT OF AN OPERATING ARM OF SUCH VEHICLE.
IT1402421B1 (en) * 2010-09-08 2013-09-04 Nem S P A CONTROL SYSTEM OF AN OLEOHYDRAULIC ACTUATOR FOR RISING AND LOWERING A LOAD

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3164171A (en) * 1961-01-30 1965-01-05 Clark Equipment Co Directional control valve
FR1336231A (en) * 1962-07-16 1963-08-30 Improvements to hydraulic installations including a reversible receiving machine with non-return valve
US3807175A (en) * 1970-11-23 1974-04-30 P Kubik Fluid system having positive vertical hold means
DE2119391A1 (en) * 1971-04-21 1972-10-26 Fa. Johannes Fuchs, 7525 Bad Mingolsheim Hydraulic machine, in particular working machine with lifting device

Also Published As

Publication number Publication date
SE7511805L (en) 1977-04-22
FR2328868B1 (en) 1981-12-04
FR2328868A1 (en) 1977-05-20
DE2647372A1 (en) 1977-04-28

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