DUAL REDUNDANT SERVOVALVE

A servovalve includes a single motor which actuates separate valve members of separate servovalve assemblies. Each of the valve members controls the flow of hydraulic fluid from separate hydraulic fluid sources. In order to provide each valve member with the ability to operate in the event that the...

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Bibliographische Detailangaben
1. Verfasser:	COAKLEY, KIM LIGE
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A servovalve includes a single motor which actuates separate valve members of separate servovalve assemblies. Each of the valve members controls the flow of hydraulic fluid from separate hydraulic fluid sources. In order to provide each valve member with the ability to operate in the event that the other valve member becomes inoperable, such as caused by jamming of the valve member, each servovalve assembly includes a compression assembly that provides each servovalve assembly with a jam-override capability. L'invention concerne une servovanne qui comprend un moteur unique actionnant des éléments de vanne séparés d'ensembles servovannes séparés. Chacun des éléments de vanne commande l'écoulement d'un fluide hydraulique provenant de sources de fluide séparées. Pour permettre à chaque élément de vanne de fonctionner en cas d'inexploitabilité de l'autre élément de vanne, par exemple à cause du coincement de celui-ci, chaque ensemble servovanne comprend un ensemble compression qui fournit à chaque ensemble servovanne une capacité de déblocage.