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公开(公告)号：US11215180B2
公开(公告)日：2022-01-04
申请号：US14408995
申请日：2013-06-12
发明人： Heiner Kösters , Jörg Temming , Daniel Kühlein
IPC分类号： F04D15/00 , F04D1/06 , F04C2/10 , F04C14/08 , F04C28/06 , F04C28/02 , F04C23/00 , F04C25/02 , F04C18/08 , F04C18/16
摘要： A method for evacuating a chamber employs a pump arrangement composed of a booster pump and of a downstream forepump is connected to the chamber. The booster pump is accelerated, gas from the chamber is introduced into the booster pump, such that from the booster pump there is temporarily extracted an excess power which exceeds the power provided by the drive of the booster pump. The gas is discharged through a bypass valve while the outlet pressure of the booster pump lies above a predefined threshold value, and the gas is directed to the forepump when the outlet pressure of the booster pump has fallen below the threshold value. The gas supplied by the booster pump is compressed by means of the forepump.
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公开(公告)号：US10704565B2
公开(公告)日：2020-07-07
申请号：US15319900
申请日：2015-06-18
发明人： Heiner Kösters
摘要： A side-channel pump having a pump housing in which an operating chamber which is provided with a side channel and a motor are arranged, and having an impeller in the operating chamber which rotates with a shaft which is driven by the motor. A cooling circuit extends from the operating chamber to the motor and from the motor to a suction portion of the pump, wherein the cooling circuit is supplied from an operating chamber whose outlet side is connected to an outlet opening of the side-channel pump. Using the pump, gas can be drawn in without the pump becoming overheated.
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公开(公告)号：US10590932B2
公开(公告)日：2020-03-17
申请号：US15319036
申请日：2015-06-16
发明人： Heiner Kösters , Inke Wrage , Jorg Wickbold , Stefan Lähn
摘要： A fluid ring compressor comprises a first single-acting compression stage having a first impeller eccentrically mounted in a housing and a second single-acting compression stage having a second impeller eccentrically mounted in a housing. The first compression stage and the second compression stage are separated from one another by a sealing gap. The sealing gap is arranged between a suction section of the first compression stage and a suction section of the second compression stage.
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公开(公告)号：US09169838B2
公开(公告)日：2015-10-27
申请号：US14364083
申请日：2012-12-12
申请人： Heiner Kösters , Matthias Tamm , Daniel Schütze
发明人： Heiner Kösters , Matthias Tamm , Daniel Schütze
CPC分类号： F04C19/004 , F04C19/00 , F04C25/02 , F04C28/08 , F04C28/28 , F04C2220/10 , F04C2240/81 , F04C2270/05 , F04C2270/12 , F04C2270/125 , F04C2270/44 , F04C2270/86
摘要： A method for operating a liquid ring vacuum pump employs taking vibration measurements of the pump and comparing the measurements with a prescribed cavitation threshold. In addition, a measurement representing the liquid content in the gas to be conveyed is taken. This measurement is compared with a prescribed threshold. The rotational speed of the liquid ring vacuum pump is reduced if the prescribed cavitation threshold has been exceeded and the liquid content is less than the prescribed threshold. The rotational speed is increased if the prescribed cavitation threshold has been exceeded and the liquid content is greater than the prescribed threshold. A liquid ring vacuum pump is designed for implementing the method. Due to the regulation depending on the oscillations of the pump, the pump can be operated near the cavitation boundary without any risk of damage.
摘要翻译： 用于操作液环真空泵的方法采用泵的振动测量并将测量值与规定的气蚀阈值进行比较。 此外，取出表示待输送气体中的液体含量的测量值。 将该测量与规定的阈值进行比较。 如果超过规定的气蚀阈值且液体含量低于规定的阈值，则液环真空泵的转速会降低。 如果超过了规定的气蚀阈值并且液体含量大于规定的阈值，则转速增加。 液环真空泵设计用于实施该方法。 由于根据泵的振荡的调节，泵可以在空化边界附近操作，而不会有损坏的风险。
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公开(公告)号：US10047747B2
公开(公告)日：2018-08-14
申请号：US14762005
申请日：2014-01-16
发明人： Heiner Kösters , Matthias Tamm , Daniel Schütze
摘要： The invention relates to an assembly comprising a vacuum pump and a chamber, wherein a suction tract extends between the chamber and the vacuum pump. The vacuum pump is a liquid ring machine. According to the invention, a liquid outlet is arranged in the suction tract in order to add liquid to gas sucked in from the chamber. The invention further relates to a method for evacuating a chamber filled with vapor. According to the invention, the vapor is condensed by introducing additional liquid into the suction tract, thus by co-condensation. By supplying liquid selectively only when liquid is required for the condensation of the vapor, water is saved.
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公开(公告)号：US09845803B2
公开(公告)日：2017-12-19
申请号：US14409002
申请日：2013-06-12
发明人： Heiner Kösters , Jörg Temming
CPC分类号： F04C23/003 , F04C18/084 , F04C18/086 , F04C18/16 , F04C23/001 , F04C29/12 , F04C2220/12 , F04C2230/605 , F04C2240/402 , F04C2250/101
摘要： The invention relates to a screw pump having two screws, in which screw pump each screw has a first thread and a second thread. The threads extend in each case from a suction side to a delivery side. The threads are in engagement with one another, with the result that the threads are divided into a plurality of working chambers, the volume of which decreases from the suction side to the delivery side. According to the invention, the threads have two thread turns. Moreover, the invention relates to a screw for a pump of this type. On account of the uniform distribution of mass of the two-turn threads, the pump can be operated at a high rotational speed, with the result that the throughput of the pump is increased.
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公开(公告)号：US09709060B2
公开(公告)日：2017-07-18
申请号：US14425169
申请日：2013-09-03
发明人： Heiner Kösters
摘要： The invention relates to a side-channel pump and to a method for operating a side-channel pump in which an impeller rotates in a working chamber provided with a side channel. According to the invention, the pump is operated at an overspeed with a gas-filled working chamber in a first step. The speed is then reduced to an operating speed in order to pump a liquid. The pump according to the invention has a high suction power as a result of the overspeed, but only gas is drawn initially.
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公开(公告)号：US08290723B2
公开(公告)日：2012-10-16
申请号：US12460789
申请日：2009-07-24
申请人： Jörg Kortstock , Heiner Kösters
发明人： Jörg Kortstock , Heiner Kösters
IPC分类号： G01B3/44
CPC分类号： G01M7/00
摘要： The apparatus for monitoring appliances and machines having rotating components, particularly for monitoring compressors, vacuum pumps and other pumps, has a sensor, an evaluation electronics unit and an interface for the output of signals. The evaluation electronics unit has a microprocessor having three inputs for performing measurements in three different frequency ranges at different frequency resolutions, with the respective vibration intensities being averaged at a plurality of frequencies in line with the third-octave spectrum. The interface is a two-wire interface which is used to report different operating states using different DC values.
摘要翻译： 用于监测具有旋转部件，特别是用于监测压缩机，真空泵和其它泵的旋转部件的设备和机器具有传感器，评估电子单元和用于输出信号的接口。 评估电子单元具有具有三个输入的微处理器，用于以不同的频率分辨率在三个不同的频率范围内执行测量，其中相应的振动强度根据第三个八度频谱在多个频率下进行平均。 该接口是一个双线接口，用于使用不同的直流值报告不同的工作状态。
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公开(公告)号：US09964110B2
公开(公告)日：2018-05-08
申请号：US14359625
申请日：2012-11-22
发明人： Heiner Kösters , Matthias Tamm , Daniel Schütze
CPC分类号： F04C19/004 , F04C7/00 , F04C19/00 , F04C19/007 , F04C28/28 , F04C29/0057 , F04C2220/10 , F04C2240/56 , F04C2240/801 , F04C2270/165
摘要： A liquid-ring vacuum pump comprises a pump casing and a shaft eccentrically mounted in the pump casing. An impeller and a rotor of a drive motor are connected to the shaft. A disk cam is arranged parallel to the impeller. A first main bearing for the shaft is arranged between the impeller and the rotor of the drive motor, on the plane of the disk cam. The impeller is arranged between the first main bearing and a second main bearing. The arrangement of the bearings prevents the shaft from bending, thus allowing the leakage gap between the impeller and the disk cam to be kept small.
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