Pressure control valve for down -hole drill

The utility model discloses a pressure control valve for down -hole drill, oil pocket including forming between valve body, left valve gap and the right valve gap is equipped with main valve core andpush rod in, be equipped with control port on the left valve gap, be equipped with the spout on the v...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	ZHU HUIYI
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
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