发明名称 AIR-INLET VALVE
摘要 The invention concerns a valve (1) designed to allow air to pass into evacuated chambers, enclosures, etc., the valve having a seat (3) and an obturator (4). In order to ensure that the air passes in rapidly and silently without valve malfunction, the invention proposes that a Laval nozzle (8) is connected to the aperture (2) in the valve seat (3), that the obturator (4) has a central nose (14) which projects into the Laval nozzle (8) when the valve is closed and when it is partly opened, and that the nose (14) is shaped in such a way that, in every position of the valve (1), the cross-section of the flow gap between the nose and the inside wall of the Laval nozzle (8) is the smallest possible.
申请公布号 WO9408163(A1) 申请公布日期 1994.04.14
申请号 WO1993EP02115 申请日期 1993.08.09
申请人 LEYBOLD AKTIENGESELLSCHAFT 发明人 WALTER, G., WILHELM;DUSY, MICHAEL;LENTGES, GOTTFRIED
分类号 F16K1/12;F16K1/44;F16K1/54;F16K24/04;F16K24/06;(IPC1-7):F16K24/06 主分类号 F16K1/12
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