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1. 发明申请

US20050109161A1 Method for deep decarburisation of steel melts 审中-公开
标题翻译：钢熔体深度脱碳方法
公开(公告)号：US20050109161A1
公开(公告)日：2005-05-26
申请号：US10505610
申请日：2003-02-21
申请人： Eric Perrin , Francois Stovenot , Christian Schrade
发明人： Eric Perrin , Francois Stovenot , Christian Schrade
IPC分类号： C21C7/068 , C21C5/46 , C21C7/00 , C21C7/072 , C21C7/10 , C21C1/02
CPC分类号： C21C7/10 , C21C5/4606
摘要： The vacuum pump (10) comprises at least one rotor shaft (12) having a rotor section (14) with a rotor (16), a bearing section (18) with a bearing (20), and a shaft sealing system (22) that is axially situated between the rotor section (14) and the bearing section (18). The shaft sealing system (22) axially comprises, on the side of the rotor, a gas seal (32) and, on the side of the bearing, an oil seal (34). The shaft sealing system (22) additionally comprises, between the gas seal (32) and the oil seal (34), a separating chamber, which surrounds the rotor shaft (12) and is ventilated by at least one separating chamber ventilation duct (60, 62). This enables the pressure differential that decreases via the gas seal and t he pressure differential that decreases via the oil seal to be adjusted. An appropriate adjustment can prevent oil on the bearing side from passing through the oil seal toward the separating chamber.
摘要翻译：真空泵（10）包括至少一个转子轴（12），其具有带有转子（16）的转子部分（14），具有轴承（20）的轴承部分（18）和轴密封系统（22）轴向位于转子部分（14）和轴承部分（18）之间。轴封系统（22）在转子侧轴向地包括气密封（32），并且在轴承侧具有油封（34）。轴密封系统（22）还包括在气体密封件（32）和油封（34）之间的分隔室，其围绕转子轴（12）并且由至少一个分离室通风导管（60）通风，62）。这使得能够经由气体密封件减小的压力差和经由油封被调节的压差降低。适当的调节可以防止轴承侧的油通过油封朝向分离室。

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