ES8102645A1 - Control system for hydraulic ram - contains load limiting device formed by a piloted progressively opening valve - Google Patents

Control system for hydraulic ram - contains load limiting device formed by a piloted progressively opening valve

Info

Publication number
ES8102645A1
ES8102645A1 ES492698A ES492698A ES8102645A1 ES 8102645 A1 ES8102645 A1 ES 8102645A1 ES 492698 A ES492698 A ES 492698A ES 492698 A ES492698 A ES 492698A ES 8102645 A1 ES8102645 A1 ES 8102645A1
Authority
ES
Spain
Prior art keywords
control system
pipe
piloted
distributor
limiting device
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
ES492698A
Other languages
Spanish (es)
Other versions
ES492698A0 (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.)
Poclain SA
Original Assignee
Poclain SA
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 Poclain SA filed Critical Poclain SA
Publication of ES492698A0 publication Critical patent/ES492698A0/en
Publication of ES8102645A1 publication Critical patent/ES8102645A1/en
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
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/01—Locking-valves or other detent i.e. load-holding devices
    • 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
    • F15B13/015—Locking-valves or other detent i.e. load-holding devices using an enclosed pilot flow 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
    • F15B2211/415—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

The control system is for a receiver fed with fluid pressure from a main source. There are also a discharge tank and a two position distributor and a filling pipe connecting source to the distributor. An exhaust pipe joins one work chamber to the distributor. A valve controls load and afeed pipe is connected to the exhaust pipe and in it is a non return valve. The exhaust pipe is rigid and has the valve in it. Another pipe is flexible and the feed pipe is rigid. The distributor has a regulator.
ES492698A 1979-06-26 1980-06-23 Control system for hydraulic ram - contains load limiting device formed by a piloted progressively opening valve Expired ES8102645A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7916435A FR2459894A1 (en) 1979-06-26 1979-06-26 Control system for hydraulic ram - contains load limiting device formed by a piloted progressively opening valve

Publications (2)

Publication Number Publication Date
ES492698A0 ES492698A0 (en) 1981-02-16
ES8102645A1 true ES8102645A1 (en) 1981-02-16

Family

ID=9227114

Family Applications (1)

Application Number Title Priority Date Filing Date
ES492698A Expired ES8102645A1 (en) 1979-06-26 1980-06-23 Control system for hydraulic ram - contains load limiting device formed by a piloted progressively opening valve

Country Status (4)

Country Link
BE (1) BE883991A (en)
ES (1) ES8102645A1 (en)
FR (1) FR2459894A1 (en)
IT (1) IT8049055A0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5331882A (en) * 1993-04-05 1994-07-26 Deere & Company Control valve system with float valve
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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3807175A (en) * 1970-11-23 1974-04-30 P Kubik Fluid system having positive vertical hold means
DE2211404A1 (en) * 1972-03-09 1973-09-13 Rexroth Gmbh G L UNLOCKABLE NON-RETURN VALVE
SE393843B (en) * 1975-10-21 1977-05-23 Monsun Tison Ab DEVICE FOR A LOAD MANUFACTURING THROUGH A DIRECTION VALVE CONTROLLED HYDRAULIC ENGINE FOR PREVENTING UNCONTROLLABLE LOAD MOVEMENT IN THE EVENT OF LEAK

Also Published As

Publication number Publication date
BE883991A (en) 1980-12-29
IT8049055A0 (en) 1980-06-24
FR2459894A1 (en) 1981-01-16
ES492698A0 (en) 1981-02-16

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