发明名称 HYDRAULIC DIRECTIONAL SOLENOID VALVE AND DOOR CLOSER HAVING A HYDRAULIC DIRECTIONAL SOLENOID VALVE
摘要 <p>The invention relates to a hydraulic directional magnetic valve, in particular a hydraulic 3/2 directional magnetic valve (1), comprising a valve housing (2); a valve chamber (3) integrated in the valve housing (2) and having a first valve seat bore (6) as a connection to a first line, in particular a pressure line (P), a second valve seat bore (7) as a connection to a second line, in particular a working line (A), and a free opening (8) to a third line, in particular a tank line (T); an electromagnet (4); and a valve lifter (5) movable by means of the electromagnet (4) and partially arranged in the valve chamber (3), wherein the valve lifter (5) comprises within the valve chamber (3) a first sealing face (9) facing the first valve seat bore (6) and a second sealing face (11) facing the second valve seat bore (7), so that either the first valve seat bore (6) or the second valve seat bore (7) can be closed. The valve lifter (5) extends out of the valve chamber (3) right through the second valve seat bore (7) to the electromagnet (4) and, when the second valve seat bore (7) is closed, due to a differential area ratio the valve lifter (5) is drawn into the second valve seat bore (7) by means of the pressure in the second line, in particular the working line (A).</p>
申请公布号 SG181106(A1) 申请公布日期 2012.07.30
申请号 SG20120039269 申请日期 2010.11.30
申请人 DORMA GMBH & CO. KG 发明人 WILDFOERSTER, THOMAS
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