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发明公开
CN106255828A 泵送系统中的泵送方法以及真空泵系统 无效 - 驳回

泵送系统中的泵送方法以及真空泵系统
摘要：
本发明涉及一种泵送系统(SP、SPP)中的泵送方法，该泵送系统包括：主要润滑回转叶片式真空泵(3)，具有连接至真空室(1)的气体入口孔通向管道(5)之后，通向该真空泵系统(SP、SPP)的气体出口(8)；止回阀(6)，安置在该气体出口孔(4)和该气体出口(8)之间的该管道(5)中；以及，喷射器(7)，并联连接该止回阀(6)。根据此方法，该主要润滑回转叶片式真空泵(3)进行工作，以泵送包含在该真空泵(1)中的气体通过该气体出口孔(4)；同时，该喷射器(7)被供给有工作流体，并且该喷射器(7)在该主要润滑回转叶片式真空泵(3)泵送包含在该真空室(1)中的气体的整个时间期间和/或在该主要润滑回转叶片式真空泵(3)将该真空室(1)维持在一个预定压力的整个时间期间被持续供给有工作流体。本发明还涉及一种适于用来实施此方法的泵送系统(SP、SPP)。(2)且具有气体出口孔(4)，该气体出口孔(4)在
摘要（英）：

The present invention relates to a method of pumping in a pumping system (SP, SPP) comprising: a primary lubricated vane screw vacuum pump (3) with a gas inlet opening (2) linked to a vacuum chamber (1) and a gas outlet opening (4) that opens into a conduit (5) before opening into the gas outlet (8) of the pumping system (SP, SPP), a check valve (6) positioned in the conduit (5) between the gas outlet opening (4) and the gas outlet (8), and an ejector (7) connected in parallel with the check valve (6). According to said method, the primary lubricated vane screw vacuum pump (3) is operated in order to pump the gases contained in the vacuum pump (1) through the gas outlet opening (4); simultaneously, the ejector (7) is supplied with motive medium, and the ejector (7) continues to be supplied with motive medium throughout the time that the primary lubricated vane vacuum pump (3) is pumping the gases contained in the vacuum chamber (1) and/or throughout the time that the primary lubricated vane vacuum pump (3) is maintaining a predefined pressure in the vacuum chamber (1). The present invention also relates to a pumping system (SP, SPP) suitable for being used for implementing said method.

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