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公开(公告)号：US09551333B2
公开(公告)日：2017-01-24
申请号：US14006575
申请日：2012-01-17
IPC分类号： F01C19/00 , F01C19/10 , F16J15/02 , F01C1/24 , F03C2/30 , F04C2/24 , F04C18/24 , F04B25/00 , F01C21/10 , F04C23/00 , F04C25/02 , F04C27/00 , F04C18/12
CPC分类号： F04B25/00 , F01C19/005 , F01C19/10 , F01C21/10 , F04C18/12 , F04C23/001 , F04C25/02 , F04C27/008 , F04C2230/60
摘要： A multi-stage vacuum pump may include first and second half-shell components defining a plurality of pumping chambers and for assembly together along respective longitudinal extending faces; first and second end stator components for assembly at respective longitudinal seals for sealing between the first and second half-shell stator components when assembled together at the longitudinally extending faces; and annular seals for sealing between the first and second end stator components and the first and second half-shell stator components when assembled; wherein the longitudinal seals have end portions which abut against the annular seals for sealing therebetween and the first and second half-shell stator components have formations for resisting movement of the end portions away from the annular seals when the end portions are compressed between the first and second half-shell stator components.
摘要翻译： 多级真空泵可以包括限定多个泵送室并且沿着相应的纵向延伸面组装在一起的第一和第二半壳部件; 第一和第二端定子部件，用于在相应的纵向密封件处组装，用于当在纵向延伸面上组装在一起时在第一和第二半壳定子部件之间进行密封; 以及用于在组装时在第一和第二端子定子部件与第一和第二半壳定子部件之间进行密封的环形密封件; 其中所述纵向密封件具有抵靠所述环形密封件的端部，用于密封所述环形密封件，并且当所述端部被压缩在所述第一和第二半壳定子部件之间时，所述第一和第二半壳定子部件具有用于抵抗所述端部远离所述环形密封件的运动的结构 第二半壳定子部件。
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公开(公告)号：US20140017062A1
公开(公告)日：2014-01-16
申请号：US14006575
申请日：2012-01-17
IPC分类号： F04B25/00
CPC分类号： F04B25/00 , F01C19/005 , F01C19/10 , F01C21/10 , F04C18/12 , F04C23/001 , F04C25/02 , F04C27/008 , F04C2230/60
摘要： A multi-stage vacuum pump may include first and second half-shell components defining a plurality of pumping chambers and for assembly together along respective longitudinal extending faces; first and second end stator components for assembly at respective longitudinal seals for sealing between the first and second half-shell stator components when assembled together at the longitudinally extending faces; and annular seals for sealing between the first and second end stator components and the first and second half-shell stator components when assembled; wherein the longitudinal seals have end portions which abut against the annular seals for sealing therebetween and the first and second half-shell stator components have formations for resisting movement of the end portions away from the annular seals when the end portions are compressed between the first and second half-shell stator components.
摘要翻译： 多级真空泵可以包括限定多个泵送室并且沿着相应的纵向延伸面组装在一起的第一和第二半壳部件; 第一和第二端定子部件，用于在相应的纵向密封件处组装，用于当在纵向延伸面上组装在一起时在第一和第二半壳定子部件之间进行密封; 以及用于在组装时在第一和第二端子定子部件与第一和第二半壳定子部件之间进行密封的环形密封件; 其中所述纵向密封件具有抵靠所述环形密封件的端部，用于密封所述环形密封件，并且当所述端部被压缩在所述第一和第二半壳定子部件之间时，所述第一和第二半壳定子部件具有用于抵抗所述端部远离所述环形密封件的运动的结构 第二半壳定子部件。
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公开(公告)号：US09279426B2
公开(公告)日：2016-03-08
申请号：US12678261
申请日：2008-10-01
IPC分类号： F04C27/00 , F16N13/20 , F04C18/00 , F04C2/00 , F04C18/12 , F04C23/00 , F04C27/02 , F16J15/00 , F16J15/14
CPC分类号： F04C18/126 , F04C23/001 , F04C27/02 , F04C2240/30 , F16J15/002 , F16J15/14
摘要： A multi-stage, clam shell, vacuum pump comprises two housing components (12) which are to be sealingly connected to one another such that an array of chambers extending longitudinally from an inlet region of the pump to an outlet region of the pump is defined thereby. Sealing means (30) are provided within the vacuum pump, between the two housing components, to prevent transfer of fluid in to and out of the vacuum pump where said components are connected. An array of discrete, elongate channels (33, 34, 36, 38) is provided, located between the sealing means (30) and the array of chambers (14, 16, 18, 20, 22). The channels serve to protect the sealing means (30) from fluid that passes through the chambers during operation of the vacuum pump. Each channel is configured to receive a barrier fluid having a different pressure than a barrier fluid to be received by an adjacent channel.
摘要翻译： 多级蛤壳式真空泵包括两个壳体部件（12），它们彼此密封地连接，使得从泵的入口区域纵向延伸到泵的出口区域的腔室阵列被限定 从而。 密封装置（30）设置在真空泵之间的两个壳体部件之间，以防止流体进入和离开所述部件连接的真空泵中。 提供了一组离散的细长通道（33,34,36,38），位于密封装置（30）和腔室阵列（14,16,18,20,22）之间。 这些通道用于在真空泵运行期间保护密封装置（30）免于流经腔室的流体。 每个通道被配置为接收具有与被相邻通道接收的阻挡流体不同的压力的阻挡流体。
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公开(公告)号：US08500422B2
公开(公告)日：2013-08-06
申请号：US12311513
申请日：2007-10-01
IPC分类号： F03C2/00
CPC分类号： F04C23/001 , F01C21/104 , F04C18/126 , F04C29/04 , F04C2240/30
摘要： A vacuum pump housing comprises first (12) and second half-shell stator components (14) defining a plurality of pumping chambers separated by partition members (26, 28, 30, 32). Each pumping chamber comprises an inlet port (42, 44, 46, 48, 50) for receiving fluid and an outlet port (54, 56, 58, 60, 62) through which pumped fluid is exhausted from the chamber. The inlet ports are open on an external surface of the first stator component, and the outlet ports are open on an opposing external surface of the second stator component. The stator components further define transfer channels (66, 68, 70, 72) for conveying fluid between the pumping chambers. Each transfer channel preferably comprises first and second portions located on opposite sides of the housing.
摘要翻译： 真空泵壳体包括限定由分隔构件（26,28,30,32）隔开的多个泵送室的第一（12）和第二半壳定子部件（14）。 每个泵送室包括用于接收流体的入口端口（42,44,46,48,50）和从腔室排出泵送流体的出口端口（54,56,58,60,62）。 入口端口在第一定子部件的外表面上开口，并且出口在第二定子部件的相对的外表面上敞开。 定子部件还限定用于在泵送室之间输送流体的传送通道（66,68,70,72）。 每个传送通道优选地包括位于壳体的相对侧上的第一和第二部分。
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公开(公告)号：US20140079581A1
公开(公告)日：2014-03-20
申请号：US14114896
申请日：2012-04-23
CPC分类号： F04C18/126 , F01C1/084 , F01C1/126 , F01C21/08 , F04C2/084 , F04C2/126 , F04C18/084 , F04C25/02 , F04C29/0078 , F04C2230/00 , F04C2240/20 , Y10T29/49236
摘要： The present invention relates to a rotor for a vacuum pump having a roots pumping mechanism, the rotor comprising at least two hollow lobes, each lobe having an outer wall which defines a lobe profile, a hollow cavity generally inward of the outer wall, and at least one strengthening rib located in the cavity to resist stress on the lobes generated during rotation.
摘要翻译： 本发明涉及一种具有根部泵送机构的真空泵的转子，转子包括至少两个中空凸角，每个凸角具有限定凸角轮廓的外壁，大体上位于外壁内侧的中空腔 位于空腔中的至少一个加强肋以抵抗旋转期间产生的裂片上的应力。
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公开(公告)号：US20100119399A1
公开(公告)日：2010-05-13
申请号：US12311513
申请日：2007-10-01
CPC分类号： F04C23/001 , F01C21/104 , F04C18/126 , F04C29/04 , F04C2240/30
摘要： A vacuum pump housing comprises first (12) and second half-shell stator components (14) defining a plurality of pumping chambers separated by partition members (26, 28, 30, 32). Each pumping chamber comprises an inlet port (42, 44, 46, 48, 50) for receiving fluid and an outlet port (54, 56, 58, 60, 62) through which pumped fluid is exhausted from the chamber. The inlet ports are open on an external surface of the first stator component, and the outlet ports are open on an opposing external surface of the second stator component. The stator components further define transfer channels (66, 68, 70, 72) for conveying fluid between the pumping chambers. Each transfer channel preferably comprises first and second portions located on opposite sides of the housing.
摘要翻译： 真空泵壳体包括限定由分隔构件（26,28,30,32）隔开的多个泵送室的第一（12）和第二半壳定子部件（14）。 每个泵送室包括用于接收流体的入口端口（42,44,46,48,50）和用于从所述室排出泵送流体的出口端口（54,56,58,60,62）。 入口端口在第一定子部件的外表面上开口，并且出口在第二定子部件的相对的外表面上敞开。 定子部件还限定用于在泵送室之间输送流体的传送通道（66,68,70,72）。 每个传送通道优选地包括位于壳体的相对侧上的第一和第二部分。
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公开(公告)号：US20100226808A1
公开(公告)日：2010-09-09
申请号：US12678261
申请日：2008-10-01
IPC分类号： F01C1/18
CPC分类号： F04C18/126 , F04C23/001 , F04C27/02 , F04C2240/30 , F16J15/002 , F16J15/14
摘要： A multi-stage, clam shell, vacuum pump comprises two housing components (12) which are to be sealingly connected to one another such that an array of chambers extending longitudinally from an inlet region of the pump to an outlet region of the pump is defined thereby. Sealing means (30) are provided within the vacuum pump, between the two housing components, to prevent transfer of fluid in to and out of the vacuum pump where said components are connected. An array of discrete, elongate channels (33, 34, 36, 38) is provided, located between the sealing means (30) and the array of chambers (14, 16, 18, 20, 22). The channels serve to protect the sealing means (30) from fluid that passes through the chambers during operation of the vacuum pump. Each channel is configured to receive a barrier fluid having a different pressure than a barrier fluid to be received by an adjacent channel.
摘要翻译： 多级蛤壳式真空泵包括两个壳体部件（12），两个壳体部件（12）彼此密封地连接，使得从泵的入口区域纵向延伸到泵的出口区域的腔室阵列被限定 从而。 密封装置（30）设置在真空泵之间的两个壳体部件之间，以防止流体进入和离开所述部件连接的真空泵中。 提供了一组离散的细长通道（33,34,36,38），位于密封装置（30）和腔室阵列（14,16,18,20,22）之间。 这些通道用于在真空泵运行期间保护密封装置（30）免于流经腔室的流体。 每个通道被配置为接收具有与被相邻通道接收的阻挡流体不同的压力的阻挡流体。
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公开(公告)号：US08500425B2
公开(公告)日：2013-08-06
申请号：US12576871
申请日：2009-10-09
IPC分类号： F01C1/18
CPC分类号： F04C18/126 , F04C18/086 , F04C25/02 , F04C2220/20 , F04C2240/102
摘要： A Roots vacuum pump stator is arranged to house a pair of intermeshing rotors, said stator being characterized in that it comprises a director or deflector arranged to direct solid material entrained in a gas pumped through the pump towards the outlet. In other words, the stator according to the present invention has a means for directing or deflecting powder or solid material entrained in a gas being pumped directly towards an outlet of the pump or out of the pump. The directing means can comprise a channel disposed between the arcuate surface and the outlet, said channel comprising a portion that engages the arcuate surface prior to the bottom-dead-centre position and which extends away from the rotor's axis of rotation towards the pump outlet. Thus, powder entrained in the pumped gas is effectively removed from pumping volume in a way which reduces the likelihood of any solid material causing the pump to seize: the channel can be arranged so that the solid material is “flung” towards the outlet or away from a meshing zone where rotors mesh with one another.
摘要翻译： 罗茨真空泵定子被布置成容纳一对相互啮合的转子，所述定子的特征在于它包括导向器或偏转器，导向器或偏转器被布置成将夹带在通过泵抽吸的气体中的固体材料引导到出口。 换句话说，根据本发明的定子具有用于引导或偏转夹带在直接泵送到泵的出口或泵出的气体中的粉末或固体材料的装置。 引导装置可以包括设置在弓形表面和出口之间的通道，所述通道包括在下死点中心位置之前接合弓形表面并且远离转子的旋转轴线朝向泵出口延伸的部分。 因此，夹带在泵送气体中的粉末有效地从泵送体积中去除，这样可以降低任何固体物质使泵卡住的可能性：通道可以被布置成使固体材料朝向出口或远离 来自转子彼此啮合的啮合区域。
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公开(公告)号：US20070274822A1
公开(公告)日：2007-11-29
申请号：US10581934
申请日：2004-12-23
申请人： Michael Liu , Stephen Dowdeswell , Nigel Schofield
发明人： Michael Liu , Stephen Dowdeswell , Nigel Schofield
IPC分类号： F01D1/36
CPC分类号： F04D17/122 , F04D17/14 , F04D17/168 , F04D19/044 , F04D27/0207 , Y10T137/86083
摘要： A vacuum pumping arrangement is described for evacuating a load lock chamber. A booster pump comprises a molecular drag stage and a multi-stage centrifugal compressor mechanism. A backing pump comprises a multi-stage centrifugal compressor mechanism exhausting pumped fluid at atmospheric pressure. Such arrangements can reduce noise, size and vibration levels associated with conventional load lock pumping arrangements.
摘要翻译： 描述了用于排空负载锁定室的真空泵送装置。 增压泵包括分子拖曳级和多级离心式压缩机构。 背衬泵包括在大气压下排出泵送流体的多级离心压缩机构。 这种布置可以降低与传统的加载锁定泵送装置相关联的噪声，尺寸和振动水平。
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