FR2423662A1 - Valve de commande a obturateur rotatif, notamment pour machines agricoles et engins de terrassement - Google Patents

Valve de commande a obturateur rotatif, notamment pour machines agricoles et engins de terrassement

Info

Publication number
FR2423662A1
FR2423662A1 FR7910045A FR7910045A FR2423662A1 FR 2423662 A1 FR2423662 A1 FR 2423662A1 FR 7910045 A FR7910045 A FR 7910045A FR 7910045 A FR7910045 A FR 7910045A FR 2423662 A1 FR2423662 A1 FR 2423662A1
Authority
FR
France
Prior art keywords
passage
control valve
hydraulic drive
rotary piston
outlet
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Withdrawn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
FR7910045A
Other languages
English (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.)
MORTL SCHLEPPERGERATEBAU GmbH
Original Assignee
MORTL SCHLEPPERGERATEBAU GmbH
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 MORTL SCHLEPPERGERATEBAU GmbH filed Critical MORTL SCHLEPPERGERATEBAU GmbH
Publication of FR2423662A1 publication Critical patent/FR2423662A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/02—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters
    • A01D34/30—Driving mechanisms for the cutters
    • A01D34/38—Driving mechanisms for the cutters fluid
    • 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
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Harvester Elements (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Lifting Devices For Agricultural Implements (AREA)

Abstract

L'invention concerne une valve de commande à obturateur rotatif. Ladite valve comporte une entrée et au moins deux sorties du fluide de travail reliées à des dispositifs d'entraînement. L'obturateur de la valve comporte un conduit dont la section et la, disposition par rapport aux sorties sont telles qu'au cours d'une phase de rotation de l'obturateur, la section de passage d'une sortie peut être rétrécie pour permettre dans la valve l'élévation de la pression du fluide devant passer par l'autre sortie. Application : alimentation simultanée du fluide envoyé sous des pressions différentes à des dispositifs d'entraînement d'une faucheuse ou d'un chariot élévateur.
FR7910045A 1978-04-21 1979-04-20 Valve de commande a obturateur rotatif, notamment pour machines agricoles et engins de terrassement Withdrawn FR2423662A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782817489 DE2817489A1 (de) 1978-04-21 1978-04-21 Steuerventil

Publications (1)

Publication Number Publication Date
FR2423662A1 true FR2423662A1 (fr) 1979-11-16

Family

ID=6037674

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7910045A Withdrawn FR2423662A1 (fr) 1978-04-21 1979-04-20 Valve de commande a obturateur rotatif, notamment pour machines agricoles et engins de terrassement

Country Status (3)

Country Link
DE (1) DE2817489A1 (fr)
FR (1) FR2423662A1 (fr)
IT (1) IT1111735B (fr)

Also Published As

Publication number Publication date
IT1111735B (it) 1986-01-13
DE2817489A1 (de) 1979-10-31
IT7920966A0 (it) 1979-03-14

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Legal Events

Date Code Title Description
ST Notification of lapse