公开(公告)号：EP4363696A1

公开(公告)日：2024-05-08

申请号：EP22735424.8

申请日：2022-06-27

申请人： Kaeser Kompressoren SE

发明人： SIMROSS, Dirk

IPC分类号： F01C19/00 ,  F04C18/16 ,  F04C27/00 ,  F04C27/02 ,  F04C29/02

CPC分类号： F04C18/16 ,  F04C29/021 ,  F04C29/026 ,  F04C29/028 ,  F04C27/009 ,  F04C27/02 ,  F01C19/005

公开(公告)号：EP3376033A1

公开(公告)日：2018-09-19

申请号：EP17160775.7

申请日：2017-03-14

申请人： Leybold GmbH

发明人： Gremillet, Christophe ,  Bouhadid, Hakim ,  Fournier, Patrick

IPC分类号： F04C25/02 ,  F04C27/02

CPC分类号： F04C27/02 ,  F04C25/02

摘要： A lubricant-sealed vacuum pump, such as a rotary vane pump, comprises a rotor element (16) arranged in a suction chamber (10). The rotor element (16) is carried by a rotor shaft (26). The shaft (26) is surrounded by a main seal (32) arranged in the pump housing (12). In addition to the main seal (32), an additional seal (44) is arranged on an inner side (42) of the main seal (32). The additional seal (44) comprises a sealing lip (50) arranged on an outer side (36) of a shell (30).

公开(公告)号：EP3237759A1

公开(公告)日：2017-11-01

申请号：EP15794273.1

申请日：2015-11-10

申请人： Edwards Limited

发明人： SCHOFIELD, Nigel Paul

IPC分类号： F04C29/00 ,  F04C29/12 ,  F04C18/16 ,  F04C25/02

CPC分类号： F04C18/16 ,  F04C25/02 ,  F04C27/02 ,  F04C29/0007 ,  F04C29/128 ,  F04C2240/20

摘要： A rotary screw vacuum pump 10 comprises a housing 12 that has a lower pressure inlet region 14 and a higher pressure outlet region 16 and two intermeshing screws 18 disposed in the chamber and configured to cooperably rotate to compress a gas in working chambers formed between them and the housing while pumping the gas from the lower pressure inlet region to the higher pressure outlet region. The housing 12 has a least one liquid inlet 20 to admit a sealing liquid to seal the working chambers. The intermeshing screws 18 comprise Quimby-type screws.

摘要翻译： 旋转螺杆式真空泵（10）包括具有较低压力入口区域（14）和较高压力出口区域（16）的壳体（12）以及设置在腔室中并配置成协作旋转以压缩 在它们与壳体之间形成的工作室中的气体，同时将气体从低压入口区域泵送到高压出口区域。 壳体（12）具有至少一个液体入口（20），以允许密封液体密封工作室。 啮合螺钉（18）包括Quimby型螺钉。

公开(公告)号：EP3172405A1

公开(公告)日：2017-05-31

申请号：EP15741279.2

申请日：2015-07-17

申请人： Edwards Limited

发明人： HOLBROOK, Alan Ernest Kinnaird ,  TRIKOILIS, Nomikos ,  SEUNGHO, Jeon

IPC分类号： F01C19/00 ,  F01C21/10 ,  F04C23/00

CPC分类号： F04C27/02 ,  F01C19/005 ,  F01C21/10 ,  F04C18/126 ,  F04C23/001 ,  F04C25/02 ,  F04C2220/10 ,  F04C2240/10

摘要： The present invention relates to a multi-stage vacuum pump comprising: first and second half-shell stator components and first and second end stator components which when assembled define a plurality of pumping chambers. The half-shell components are assembled together along respective pairs of mutual engaging longitudinal faces and the end stator components are assembled at the ends of the half-shell components at respective pairs of mutual engaging end faces. A longitudinal channel is counter-sunk in at least one longitudinal face of each pair of mutual engaging longitudinal faces for receiving respective longitudinal sealing members for sealing between the half-shell components. Counter-sunk in at least one longitudinal face of each pair of mutual engaging longitudinal faces is a pocket extending transversely from the longitudinal channel for receiving sealant and allowing sealant to flow around a longitudinal sealing member received in the longitudinal channel for preventing the formation of a leakage path.

摘要翻译： 多级真空泵包括第一和第二半壳式定子部件以及第一和第二端部定子部件，所述第一和第二端部定子部件在组装时限定多个泵送腔室。半壳部件沿着相应的一对相互接合的纵向面12组装在一起，以及 端部定子部件在相应的一对相互接合的端面处组装在半壳部件的端部处。 纵向通道40在每对相互接合的纵向面的至少一个纵向面上反沉，用于接收用于密封半壳部件之间的相应的纵向密封部件34。 在每对相互啮合的纵向面的至少一个纵向面上沉积有凹槽38，凹槽38从纵向通道横向延伸，用于接收密封剂并且允许密封剂围绕容纳在纵向通道中的纵向密封构件流动，以防止形成 一条泄漏路径。

公开(公告)号：EP3092411A1

公开(公告)日：2016-11-16

申请号：EP15710412.6

申请日：2015-01-08

申请人： ATLAS COPCO AIRPOWER, naamloze vennootschap

发明人： DESIRON Andries Jan F ,  DE VOCHT Alexander ,  COECKELBERGS Joeri

IPC分类号： F04C28/06 ,  F04C29/02

CPC分类号： F04C29/021 ,  F04C18/16 ,  F04C27/02 ,  F04C28/06 ,  F04C29/0014 ,  F04C29/026 ,  F04C2270/19

摘要： Method for preventing condensate in the oil of an oil-injected compressor (1), characterised in that before the compressor element (2) is stopped, when the maximum pressure (pmax) in the consumer network (16) has been reached, the compressor element continues to be driven until the temperature (T) of the oil or the compressed gas is lower than a set fixed or calculated minimum value (Tmin) above which there is no or as little condensate as possible in the oil.

摘要翻译： 在油注入压缩机（1）的油防止冷凝，压缩机元件（2）之前DASS方法被停止，当消费者网络（16）中的最大压力（P最大）已经达到，压缩机 元件继续被驱动直到油或压缩气体的温度（T）大于固定的一组或计算最小值（TMIN）以上其中没有或尽可能少的冷凝液尽可能在油低。

公开(公告)号：EP2997262A1

公开(公告)日：2016-03-23

申请号：EP14797202.0

申请日：2014-05-15

申请人： Jets AS

发明人： SVENHEIM, Ole Asgeir

IPC分类号： F04D29/26 ,  F04D29/00

CPC分类号： F04C7/00 ,  F04C19/00 ,  F04C27/02 ,  F04C2250/00

摘要： A liquid ring screw pump includes a housing with a suction inlet section and a pressure outlet section. Within the housing an Archimedes screw rotor is driven by a motor via a shaft. The inlet section and outlet section are each provided with connecting structure for suction and pressure piping respectively. The displacement CD of the screw rotor in relation to the center axis of the housing is determined by an equation based on the screw rotor radius, a minimum screw rotor core radius, and a variable k that is between 0.14 and 0.29.

摘要翻译： 液环螺旋泵包括具有吸入口部分和压力出口部分的壳体。 在壳体内，阿基米德螺旋转子由马达通过轴驱动。 入口部分和出口部分别分别设有用于吸入和压力管道的连接结构。 螺杆转子相对于壳体的中心轴线的位移CD由基于螺杆转子半径，最小螺杆转子芯半径和0.14至0.29之间的变量k的等式确定。

公开(公告)号：EP2306027A4

公开(公告)日：2015-01-21

申请号：EP09762397

申请日：2009-06-03

申请人： KOBE STEEL LTD

发明人： KAKIUCHI TETSUYA ,  AMANO YASUSHI

IPC分类号： F04C29/02 ,  F01C19/00 ,  F01C21/02 ,  F04C18/16 ,  F04C27/00 ,  F04C27/02

CPC分类号： F04C18/16 ,  F01C19/005 ,  F01C21/02 ,  F04C27/005 ,  F04C27/009 ,  F04C27/02 ,  F04C29/02 ,  F04C29/026

摘要： A screw compression apparatus (1) in which the bearing lifespan is unaffected by the properties of the target gas being compressed comprises: a screw compressor (2) in which a rotor shaft of a screw rotor (6) that is rotatably housed to compress a target gas together with a rotor lubricating fluid in a male/female interlocking arrangement in a rotor chamber (5) formed in a housing (4) is held by bearings (10, 11) arranged in bearing spaces (7, 8) formed in a housing (4) adjacently to a rotor chamber (5), and which includes shaft sealing members (13, 14) that isolate the bearing space (7, 8) from the rotor chamber (5); a lubricating fluid separating collector (3) that separates the rotor lubricating fluid from the target gas discharged by the screw compressor (2); a rotor lubricating flow channel (25) through which the rotor lubricating fluid separated by the lubricating fluid separating collector (3) is introduced into the rotor chamber (5); and a bearing lubricating system (17) for supplying a bearing lubricating fluid to the bearing space (7, 8), and cooling the bearing lubricating fluid flowing out from the bearing space (7, 8) and returning the fluid to the bearing space (7,8).

公开(公告)号：EP2516863A2

公开(公告)日：2012-10-31

申请号：EP10785500.9

申请日：2010-11-23

申请人： Edwards Limited

发明人： STEPHENS, Philip John ,  STONES, Ian David ,  GRAY, Malcolm William ,  NELLER, Paul David

IPC分类号： F04C25/02

CPC分类号： F04C25/02 ,  F04C23/001 ,  F04C27/009 ,  F04C27/02 ,  F04C28/02 ,  F04C29/0092 ,  F04C2220/12

摘要： A pump includes a plurality of pumping stages comprising a respective plurality of pumping mechanisms driven by one or more drive shafts for pumping fluid through the pumping stages from a pump inlet at a high vacuum stage to a pump outlet at a low vacuum stage; a lubrication chamber housing a bearing assembly for supporting the drive shaft for rotational movement, the drive shaft extending from the high vacuum stage to the lubrication chamber through an opening of a head plate of the lubrication chamber; an inter-stage purge port through which gas can enter the pump at an inter-stage location downstream of the high vacuum; a lubrication chamber purge port located in the lubrication chamber through which purge gas can flow from a source of purge gas; wherein the inter-stage port is connected to the lubrication chamber for controlling the pressure of purge gas in the lubrication chamber.

公开(公告)号：EP1987273A1

公开(公告)日：2008-11-05

申请号：EP07705376.7

申请日：2007-02-14

申请人： Edwards Limited

发明人： OKOROAFOR, Emmanuel, Uzoma

IPC分类号： F16J15/32 ,  F16J15/12

CPC分类号： F16J15/3212 ,  F04C18/086 ,  F04C27/02 ,  F16J15/121

摘要： A vacuum pump comprises two stator components (10, 14) and a seal (20) located between the components to provide a fluid-tight seal between the components. In one embodiment, the seal comprises a compliant annular body (24), an annular reinforcing member (26) embedded within the annular body, and a coating (28) of FFKM elastomer.

摘要翻译： 真空泵包括两个定子部件（10,14）和位于部件之间的密封件（20），以在部件之间提供流体密封。 在一个实施例中，密封件包括柔性环形主体（24），嵌入在环形主体内的环形加强构件（26）以及FFKM弹性体的涂层（28）。

公开(公告)号：EP0084084A1

公开(公告)日：1983-07-27

申请号：EP82109588.2

申请日：1982-10-16

申请人： Leybold-Heraeus GmbH

发明人： Berges, Hanns-Peter, Dr. ,  Frieden, Peter ,  Leier, Wolfgang

IPC分类号： F04C27/02

CPC分类号： F04C27/02

摘要： Bei einer ölgedichteten Vakuumpumpe mit einem Olkreislauf zur Versorgung der Lagerungen und des Pumpenraumes mit Öl und einem im Ölkreislauf angeordneten Ventil für die Absperrung der Ölzufuhr zum Pumpenraum bei stillstehender Pumpe weist der Ölkreislauf eine Druckstufe (15) zum Abbau des von der Ölpumpe (12) erzeugten Überdrucks auf den Umgebungsdruck auf; bezogen auf die Richtung des im Ölkreislauf strömenden Öls liegen die zu den Lagerungen führenden Abzweigungen (16, 17, 18) vor der Druckstufe und die zum Pumpenraum führende Zweigleitung (44) sowie das Absperrventil (14, 41) hinter der Druckstufe.

摘要翻译： 在具有油电路供给轴承，并与油泵腔室和设置在用于切断供油到当泵停止时，泵室中的油回路阀，油电路包括用于降低油泵的压力级（15）的油密封真空泵（12）产生的 过压对环境压力; 相对于在油电路油（41 14）中的流动方向上的压力水平之前通向轴承分支（16，17，18）和通向泵室分支（44）和压力级的下游的切断阀。