DISPOSITIF DE REGULATION A DEUX DOMAINES DE PRESSION

• Main Author: FRANCOIS LEORAT, PATRICK COUTANT ET PAUL AUBERT
• Format: Patent
• Language: French
• Published: 21.03.1986
• Edition: 4
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

DISPOSITIF DE REGULATION DE PRESSION COMPORTANT UNE VANNE MANUELLE VM ASSOCIEE A UNE VANNE DE REGULATION DE PRESSION VRP, CARACTERISE EN CE QUE LEDIT DISPOSITIF PROCURE:-UN PREMIER DOMAINE DE PRESSION DE LIGNE P, DEFINI PAR DEUX GICLEURS CALIBRES EN SERIE 30 ET 31, QUI SONT DISPOSES SUR LE CANAL 51 MIS AU ZERO PAR LA VANNE MANUELLE VM SE TROUVANT DANS UNE PREMIERE POSITION R;-UN DEUXIEME DOMAINE DE PRESSION DE LIGNE P, LE CANAL 51 ETANT ALIMENTE A LA PRESSION DE LIGNE P, LA VANNE MANUELLE VM SE TROUVANT DANS UNE DEUXIEME POSITION A;-LA VARIATION DE LA PRESSSION DE LIGNE P ETANT ASSUREE PAR UNE ELECTROVANNE MODULATRICE EVM, QUI ETABLIT UNE PRESSION MODULEE P AGISSANT SUR UNE SECTION DIFFERENTIELLE S DE LADITE VANNE DE REGULATION DE PRESSION VRP. Pressure control device comprising a manual valve (VM) associated with a pressure control valve (VRP), includes a first line pressure (PL), defined by two calibrated jets in series, which are placed on a duct set at zero pressure by the manual valve (VM) being in a first position R. At a second line pressure range (PL), a duct is fed at line pressure (PL), the manual valve (VM) is in a second position A. A variation of line pressure (PL) is assured by a modulating solenoid valve (EVM), which establishes a modulated pressure (PM) acting on a differential section ( SIGMA ) of said pressure control valve (VRP).