Main valve and switching valve

The utility model provides a main valve and a switching valve, the main valve is provided with a plurality of pilot valve flow channels and a plurality of main valve flow channels, the main valve comprises a first valve body, the first valve body is provided with a main cavity penetrating through th...

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Bibliographische Detailangaben
Hauptverfasser:	XIONG YUNJUN, LIN YUANYANG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	The utility model provides a main valve and a switching valve, the main valve is provided with a plurality of pilot valve flow channels and a plurality of main valve flow channels, the main valve comprises a first valve body, the first valve body is provided with a main cavity penetrating through the first valve body, the pilot valve flow channels are partially arranged on the first valve body, the main valve flow channels are all arranged on the first valve body, and the pilot valve flow channels are communicated with the main cavity. The two ends of the multiple main valve flow channels communicate with the main cavity and the outer area of the first valve body correspondingly, the multiple main valve flow channels are straight flow channels, the multiple main valve flow channels are distributed on the multiple side walls of the first valve body and penetrate through the side walls of the first valve body, and at most two main valve flow channels are arranged on the side wall of any first valve body. By the