FR2428868A1 - Hydraulic fluid flow and pressure regulator - has three valves in series with differential cylinders to stabilise conditions - Google Patents

Hydraulic fluid flow and pressure regulator - has three valves in series with differential cylinders to stabilise conditions

Info

Publication number
FR2428868A1
FR2428868A1 FR7915102A FR7915102A FR2428868A1 FR 2428868 A1 FR2428868 A1 FR 2428868A1 FR 7915102 A FR7915102 A FR 7915102A FR 7915102 A FR7915102 A FR 7915102A FR 2428868 A1 FR2428868 A1 FR 2428868A1
Authority
FR
France
Prior art keywords
valve
stabilise
valves
series
conditions
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Withdrawn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
FR7915102A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2428868A1 publication Critical patent/FR2428868A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/01—Control of flow without auxiliary power
    • G05D7/0126—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/02—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length
    • B21B17/04—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length in a continuous process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B21/00—Pilgrim-step tube-rolling, i.e. pilger mills
    • B21B21/04—Pilgrim-step feeding mechanisms

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Safety Valves (AREA)

Abstract

The flow regulator has an adjustable valve which can be hand set by means of threaded spindle. The fluid passes to a compound valve having three cylinders. One is subjected to the supply pressure andone to the reduced pressure from the valve. This valve has a return spring and may be subjected to external pressure. The final stage has a spring loaded piston valve with a single acting piston. The stabilised fluid is discharge from this valve.
FR7915102A 1978-06-14 1979-06-13 Hydraulic fluid flow and pressure regulator - has three valves in series with differential cylinders to stabilise conditions Withdrawn FR2428868A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT24579/78A IT1096675B (en) 1978-06-14 1978-06-14 SPEED AND FLOW RATE REGULATOR AND STABILIZER GROUP FOR HYDRAULIC FLOW RATE CONTROL

Publications (1)

Publication Number Publication Date
FR2428868A1 true FR2428868A1 (en) 1980-01-11

Family

ID=11214039

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7915102A Withdrawn FR2428868A1 (en) 1978-06-14 1979-06-13 Hydraulic fluid flow and pressure regulator - has three valves in series with differential cylinders to stabilise conditions

Country Status (4)

Country Link
BE (1) BE876955A (en)
DE (1) DE2923971A1 (en)
FR (1) FR2428868A1 (en)
IT (1) IT1096675B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2486192A1 (en) * 1980-07-04 1982-01-08 Barmag Barmer Maschf HYDRAULIC VALVE WITH HYDRAULICALLY ADJUSTABLE TRAP VALVE AND USE THEREOF IN PRESSURE REDUCER, FLOW REGULATOR AND PRESSURE LIMITING VALVE

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4406578A1 (en) * 1994-03-01 1995-09-07 Rexroth Mannesmann Gmbh Machine tools positioning drive
CN102019293B (en) * 2010-10-16 2012-06-27 太原重工股份有限公司 Hydraulic control system for replacing top of perforation machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR475473A (en) * 1914-07-24 1915-05-18 Escaut Et Meuse D Apparatus for adjusting the advance of the blank in "pilgrim pitch" rolling mills
FR1097696A (en) * 1953-02-27 1955-07-08 Wellman Smith Owen Eng Co Ltd Improvement in the production of seamless metal tubes
FR1138162A (en) * 1954-12-22 1957-06-11 Keelavite Co Ltd Flow regulator and device incorporating this regulator
FR2385458A1 (en) * 1977-04-01 1978-10-27 Pmi Macchine E Impianti Feed mechanism in pilgrim mills - has anti-recoil means for mandrel trolley

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR475473A (en) * 1914-07-24 1915-05-18 Escaut Et Meuse D Apparatus for adjusting the advance of the blank in "pilgrim pitch" rolling mills
FR1097696A (en) * 1953-02-27 1955-07-08 Wellman Smith Owen Eng Co Ltd Improvement in the production of seamless metal tubes
FR1138162A (en) * 1954-12-22 1957-06-11 Keelavite Co Ltd Flow regulator and device incorporating this regulator
FR2385458A1 (en) * 1977-04-01 1978-10-27 Pmi Macchine E Impianti Feed mechanism in pilgrim mills - has anti-recoil means for mandrel trolley

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2486192A1 (en) * 1980-07-04 1982-01-08 Barmag Barmer Maschf HYDRAULIC VALVE WITH HYDRAULICALLY ADJUSTABLE TRAP VALVE AND USE THEREOF IN PRESSURE REDUCER, FLOW REGULATOR AND PRESSURE LIMITING VALVE

Also Published As

Publication number Publication date
DE2923971A1 (en) 1980-01-03
IT1096675B (en) 1985-08-26
IT7824579A0 (en) 1978-06-14
BE876955A (en) 1979-10-01

Similar Documents

Publication Publication Date Title
ES8200492A1 (en) Device for regulating the pressure of a fluid supplied to a feeding circuit from a fluid source
GB605840A (en) Improvements in or relating to liquid pressure systems
ES8104508A1 (en) High-pressure pump with pressure regulator
GB1253748A (en) An improved self-operated pressure limiting valve for liquids
GB1132929A (en) Improvements in or relating to relief valves
FR2428868A1 (en) Hydraulic fluid flow and pressure regulator - has three valves in series with differential cylinders to stabilise conditions
DE3872585D1 (en) DISCHARGE DEVICE FOR MEDIA.
FR2429345A1 (en) Control valve for hydraulic jack - has two non-return valves and two pressure relief valves in common body
GB908503A (en) Improvements in flow control valves for hydraulic power transmissions
GB926180A (en) Improvements in pressure relief valves, more particularly for hydraulic operating circuits
ES454636A1 (en) Demand compensated hydraulic system with pressure amplifier
GB1437703A (en) Hydraulic pressure control valve
GB945265A (en) Mechanical seal with controlled leakage
GB1095127A (en) Diaphragm type pressure regulating valve
FR2415733A1 (en) Hydraulic safety valve for tipper lorry - has spring loaded piston with rod extending into sleeve including calibrated leakage orifice
GB892976A (en) Improvements relating to hydraulic pit-props or the like
GB1128164A (en) Improvements in or relating to fluid flow control valves
SE7512110L (en) PRESSURE REGULATOR FOR FLOWING MEDIA
GB1129329A (en) A pressure relief device particularly for double-acting hydraulic pit props
GB1414744A (en) Valve arrangement
GB963483A (en) Improvements in or relating to fluid pumps
GB896872A (en) Improvements in power-assisted steering gear
GB1325263A (en) Pressure reducing valves
GB914746A (en) Flow control system
FR2318331A1 (en) Hydraulic ram stroke regulation equipment - has shut off valve which in turn is used for actuating discharge valve

Legal Events

Date Code Title Description
ST Notification of lapse