CONTROL VALVE

A control valve (100) has a first and second pilot chambers (14, 15) facing both ends of a spool (12), a signal pressure passage (18) configured to lead a pilot pressure of the first and second pilot chambers (14, 15) to another device other than the control valve (100) as a signal pressure, a commu...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	KITANI, Toshiyuki
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A control valve (100) has a first and second pilot chambers (14, 15) facing both ends of a spool (12), a signal pressure passage (18) configured to lead a pilot pressure of the first and second pilot chambers (14, 15) to another device other than the control valve (100) as a signal pressure, a communication groove (19) configured to allow the first pilot chamber (14) and the signal pressure passage (18) to communicate with each other, a communication hole (20) configured to allow the second pilot chamber (15) and the signal pressure passage (18) to communicate with each other, and a check valve (21) interposed in the communication hole (20), and the check valve (21) has a poppet portion (50) configured to open or close the communication hole (20) and a spacer portion (60) configured to regulate a moving amount of the poppet portion (50) in an open direction, and the control valve (100) further includes a movement regulating portion (80) configured to regulate movement of the spacer portion (60) toward the poppet portion (50).