HYDRAULIC CONTROL VALVE

A new means of achieving a valve float position in a closed centered hydraulic control valve. The valve has a main spool position whereby pressure compensator load sense control pressure is drained to tank through the main spool. Secondly, a pin acts on the pressure compensator to prevent the main p...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Karsten, Frank C, Lacey, Daniel S, Bialosky, Evan D, Graham, Scott C, Sailer, JR., Richard F, Webel, Roger A
Format:	Patent
Sprache:	eng
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 new means of achieving a valve float position in a closed centered hydraulic control valve. The valve has a main spool position whereby pressure compensator load sense control pressure is drained to tank through the main spool. Secondly, a pin acts on the pressure compensator to prevent the main pump flow from reaching the main section spool. Finally, the new spool position adds a connection from the consumer to tank, enabling a float position.