SOLENOID PILOT VALVE FOR A HYDRAULIC VALVE, IN PARTICULAR FOR HOUSEHOLD APPLIANCES

The pilot valve (14) comprises a body (7, 7a) in which there is defined a control chamber (1 1) which is intended to communicate with the inlet (3) of the hydraulic valve (1) and which, through a restricted outlet passage (12) associated with a valve seat (13), is able to be selectively brought into...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Paolo DA PONT, FRANCESCOBENEDETTO, Maurizio RENDESI, Giosué CAPIZZI, Paolo RAVEDATI, Fabrizio PARIS, Roberto BOSIO
Format:	Patent
Sprache:	eng ; spa
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	The pilot valve (14) comprises a body (7, 7a) in which there is defined a control chamber (1 1) which is intended to communicate with the inlet (3) of the hydraulic valve (1) and which, through a restricted outlet passage (12) associated with a valve seat (13), is able to be selectively brought into communication with the outlet (4) of the hydraulic valve (1); at least one core (23) mounted movably within a portion (7a) of said body (7, 7a) and inside the control chamber (1 1) and carrying a closing member (24) cooperating with the valve seat (13); and an actuator (16-21) including a solenoid or coil (15) of copper wire, mounted around said portion (7a) of the body (7, 7a), for selectively controlling the position of the core (23) and the closing member (24) with respect to the valve seat (13) and the communication between the control chamber (1 1) and the restricted outlet passage (12); and wherein the ratio of the diameter (d) of the restricted outlet passage (12) to the weight (m) of the solenoid (16) is between 0.06 and 0.10 mm/g. La válvula piloto (14) comprende un cuerpo (7, 7a) en el cual se define una cámara de control (11) que se destina a comunicarse con la entrada (3) de la válvula hidráulica (1) y que, a través de un pasaje de salida restringido (12) asociado con un asiento de válvula (13), es capaz de ponerse selectivamente en comunicación con la salida (4) de la válvula hidráulica (1); por lo menos un núcleo (23) montado de manera movible dentro de una porción (7a) del cuerpo (7, 7a) y en el interior de la cámara de control (11) y que transporta un miembro de cierre (24) en cooperación con el asiento de válvula (13); y un activador (16-21) que incluye un solenoide o serpentín (15) de alambre de cobre, montado alrededor de la porción (7a) del cuerpo (7, 7a), para controlar selectivamente la posición del núcleo (23) y el miembro de cierre (24) en relación con el asiento de válvula (13) y la comunicación entre la cámara de control (11) y el pasaje de salida restringido (12); y en donde la relación del diámetro (d) del pasaje de salida restringido (12) al peso (m) del solenoide (16) se encuentra entre 0.06 y 0.10 mm/g.