Hydraulic logic circuit with controlled delay

A free piston, an orifice, and an independent valve are employed to provide multiple controls of the displacement of a control valve after a time delay provided by the orifice and free piston. The characteristics of the orifice and the free piston as well as pressure and resistance, determine the mi...

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Bibliographische Detailangaben
Hauptverfasser:	PANISSIDI, HUGO A
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ELECTRIC SWITCHES ELECTRICITY EMERGENCY PROTECTIVE DEVICES FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING RELAYS SELECTORS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS WEAPONS
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Beschreibung
Zusammenfassung:	A free piston, an orifice, and an independent valve are employed to provide multiple controls of the displacement of a control valve after a time delay provided by the orifice and free piston. The characteristics of the orifice and the free piston as well as pressure and resistance, determine the minimum time delay. Bleed circuits, when open, may delay the ultimate displacement of the control valve for an indeterminate period. The free piston assures that a high pressure pulse will hammer the control valve to its new position without stalling between positions. Several applications of the principle are provided.