Porous anti-blocking pilot overflow valve

The invention discloses a porous anti-blocking pilot overflow valve. The porous anti-blocking pilot overflow valve solves the problem in the prior art that the overflow valve cannot work normally after small damping holes of overflow valves are blocked. The porous anti-blocking pilot overflow valve...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	ZHU YAOKUN, CHU YI, DONG HAOTIAN, WANG JUN, SI ZIZHAN, LI YUNAN, PENG XIAOWEI, MAO JIANFENG, YU HAOQING
Format:	Patent
Sprache:	chi ; 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
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention discloses a porous anti-blocking pilot overflow valve. The porous anti-blocking pilot overflow valve solves the problem in the prior art that the overflow valve cannot work normally after small damping holes of overflow valves are blocked. The porous anti-blocking pilot overflow valve comprises a valve body, a pilot valve element and a main valve element, and is characterized in that a first small damping hole and a second small damping hole are formed in the main valve element; a movable sealing piece is arranged in the second small damping hole, so that when the first small damping hole works, the second small damping hole does not interfere with the work of the first small damping hole, and after the first small damping hole is blocked, the movable sealing piece in the second small damping hole can move to a certain extent due to the influence of continuous increase of hydraulic pressure, the second small damping hole is opened and can replace the first small damping hole to work, and the hig