CIRCUIT HYDRAULIQUE A COMMANDE ELECTRIQUE PROPORTIONNELLE

A hydraulic system with proportional electrical control is described comprising a hydraulic servo-valve including a pilot chamber 14 and a pilot valve 25 in which a duct (18) communicates with the pilot chamber (14) and is connected to a source of fluid under pressure through an orifice (23) of narr...

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Bibliographische Detailangaben
1. Verfasser:	GIULIO DOTTI, LUCIANO MORETTI ET UGO COSTELLI
Format:	Patent
Sprache:	fre
Schlagworte:	ACTUATING-FLOATS ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL BLASTING BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL COCKS CONTROLLING DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICS PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES REGULATING SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES TAPS THERMAL INSULATION IN GENERAL TRANSPORTING VALVES VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A hydraulic system with proportional electrical control is described comprising a hydraulic servo-valve including a pilot chamber 14 and a pilot valve 25 in which a duct (18) communicates with the pilot chamber (14) and is connected to a source of fluid under pressure through an orifice (23) of narrow cross-section, an aperture (15) is connected to a discharge tank, and a passage (19,20) puts the duct (18) in communication with the discharge aperture (15) and the pilot valve (29) cooperates with a seat 28 is characterised in that the seat cooperating with the shutter (29) of the pilot valve is located in a zone of the body (3) of the pilot valve which is within an armature (7) of the electromagnet (4) and the movable core (12) controls the shutter (19) directly without the aid of elements interposed axially between the movable core and the shutter.