发明名称 |
INLET VALVE AND VACUUM PUMP PROVIDED WITH SUCH AN INLET VALVE |
摘要 |
The present invention is directed to an inlet valve for regulating the pressure at the inlet channel of a vacuum pump (11) comprising: - a first chamber (1) defined by a housing (3) having at least one inlet channel (4) connected to a first supply of a fluid, the first chamber (1) comprising a movable element (5) defining two cavities (1a and 1b) fluidly sealed from each-other and means for exerting a force on the movable element (5); - a second chamber (2) separated from the first chamber (1) by a wall (7) and defined by a housing (3), said second chamber (2) being in direct communication with a process channel (8) of a second supply of a fluid;a valve body (9) slidably mounted in the wall (7) in such a way as to prevent a fluid flow between the second chamber (2) and the second cavity of the first chamber (1b), the valve body (9) having a distal end (9a) in extending into the first cavity (1a) of the first chamber (1) and a proximal end (9b), said valve body being movable between an initial closed state in which the proximal end (9b) is pushed against a sealing flange (10) and a second, opened state, in which a fluid flows from the process channel to the inlet channel (11) of the vacuum pump, characterized in that - the valve body (12) comprises a fluid channel (18) extending through the valve body (12) allowing a fluid flow between the first cavity (6a) and the inlet channel (14) of the vacuum element (1). |
申请公布号 |
WO2016112440(A1) |
申请公布日期 |
2016.07.21 |
申请号 |
WO2016BE00003 |
申请日期 |
2016.01.07 |
申请人 |
ATLAS COPCO AIRPOWER, NAAMLOZE VENNOOTSCHAP |
发明人 |
DESIRON, ANDRIES;GIELIS, DRIES;DE BOCK, ANDRIES;VINCK, GLENN;GORREBEECK, NIELS;COECKELBERGS, JOERI |
分类号 |
F04C28/24;F04C25/02;F04C28/28;F04C29/00;F04C29/12 |
主分类号 |
F04C28/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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