FR2261434A1 - Semi-automatic ram supply system - has pressure-sensitive components controlling supply and return openings - Google Patents

Semi-automatic ram supply system - has pressure-sensitive components controlling supply and return openings

Info

Publication number
FR2261434A1
FR2261434A1 FR7405815A FR7405815A FR2261434A1 FR 2261434 A1 FR2261434 A1 FR 2261434A1 FR 7405815 A FR7405815 A FR 7405815A FR 7405815 A FR7405815 A FR 7405815A FR 2261434 A1 FR2261434 A1 FR 2261434A1
Authority
FR
France
Prior art keywords
pressure
supply
semi
supply system
sensitive components
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.)
Granted
Application number
FR7405815A
Other languages
French (fr)
Other versions
FR2261434B3 (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.)
HENRION ETS
Original Assignee
HENRION ETS
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 HENRION ETS filed Critical HENRION ETS
Priority to FR7405815A priority Critical patent/FR2261434A1/en
Publication of FR2261434A1 publication Critical patent/FR2261434A1/en
Application granted granted Critical
Publication of FR2261434B3 publication Critical patent/FR2261434B3/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L25/00—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means
    • F01L25/02—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means
    • F01L25/04—Drive, or adjustment during the operation, or distribution or expansion valves by non-mechanical means by fluid means by working-fluid of machine or engine, e.g. free-piston machine
    • F01L25/06—Arrangements with main and auxiliary valves, at least one of them being fluid-driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/007—Reciprocating-piston liquid engines with single cylinder, double-acting piston
    • F03C1/0073—Reciprocating-piston liquid engines with single cylinder, double-acting piston one side of the double-acting piston being always under the influence of the liquid under pressure
    • F03C1/0076—Reciprocating-piston liquid engines with single cylinder, double-acting piston one side of the double-acting piston being always under the influence of the liquid under pressure the liquid under pressure being continuously delivered to one cylinder chamber through a valve in the piston for actuating the return 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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • F15B11/15—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor with special provision for automatic return

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Control Of Fluid Pressure (AREA)

Abstract

Incorporated in the supply system to the ram are a first pressure-sensitive component controlling the opening to the return pipe, and a second one controlling the supply opening. The first one can be a slide with pistons of different diameters at opposite ends, sliding in bores of corresponding diameters. The supply fluid passes between the pistons, and a spring acts against the larger one, while the smaller one has a needle valve shutting off the return pipe. The second pressure-sensitive component can be a spring-loaded needle valve, mounted in the ram piston and connecting the annular chamber round the rod with that above the piston crown, the supply fluid entering via the annular chamber.
FR7405815A 1974-02-20 1974-02-20 Semi-automatic ram supply system - has pressure-sensitive components controlling supply and return openings Granted FR2261434A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7405815A FR2261434A1 (en) 1974-02-20 1974-02-20 Semi-automatic ram supply system - has pressure-sensitive components controlling supply and return openings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7405815A FR2261434A1 (en) 1974-02-20 1974-02-20 Semi-automatic ram supply system - has pressure-sensitive components controlling supply and return openings

Publications (2)

Publication Number Publication Date
FR2261434A1 true FR2261434A1 (en) 1975-09-12
FR2261434B3 FR2261434B3 (en) 1976-11-26

Family

ID=9135211

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7405815A Granted FR2261434A1 (en) 1974-02-20 1974-02-20 Semi-automatic ram supply system - has pressure-sensitive components controlling supply and return openings

Country Status (1)

Country Link
FR (1) FR2261434A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2471506A1 (en) * 1979-12-14 1981-06-19 Henrion Ets Double acting hydraulic cylinder - has forward and reverse valves mounted in housing in cylinder end
DE3123727A1 (en) * 1981-06-15 1982-12-30 Emil Weber Fabrik für Ölhydraulik GmbH & Co, 7129 Güglingen CONTROL DEVICE FOR SWIVELING A TURNING PLOW

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2471506A1 (en) * 1979-12-14 1981-06-19 Henrion Ets Double acting hydraulic cylinder - has forward and reverse valves mounted in housing in cylinder end
DE3123727A1 (en) * 1981-06-15 1982-12-30 Emil Weber Fabrik für Ölhydraulik GmbH & Co, 7129 Güglingen CONTROL DEVICE FOR SWIVELING A TURNING PLOW

Also Published As

Publication number Publication date
FR2261434B3 (en) 1976-11-26

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