Open-loop proportional reversing valve

The open-loop proportional reversing valve comprises a pilot valve element and a main valve element, and the two ends of the pilot valve element are connected with manual operation screw rods through pilot valve element reset springs correspondingly; the two ends of the main valve element are connec...

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Bibliographische Detailangaben
Hauptverfasser:	HUANG HUI, LI YONG, YU BINBIN, HU HUABING, WEI XINGQIAO, LIU CHENGFENG, TAO GUIJIN, LU KAIYI
Format:	Patent
Sprache:	chi ; eng
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
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Beschreibung
Zusammenfassung:	The open-loop proportional reversing valve comprises a pilot valve element and a main valve element, and the two ends of the pilot valve element are connected with manual operation screw rods through pilot valve element reset springs correspondingly; the two ends of the main valve element are connected with a first control cavity and a second control cavity through throttlers, and main valve element reset springs are installed in the first control cavity and the second control cavity. The main valve element is located in the main valve sleeve reversing cavity, a first reversing opening, a second reversing opening and a first oil inlet are formed in the pilot valve reversing cavity, the first reversing opening is connected with the first control cavity through a first channel, and the second reversing opening is connected with the second control cavity through a second channel; a third reversing port, a fourth reversing port and a second oil inlet are formed in a reversing cavity of the main valve sleeve; and