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公开(公告)号：US07153093B2
公开(公告)日：2006-12-26
申请号：US10505608
申请日：2003-02-18
IPC分类号： F04C27/00
CPC分类号： F04C27/009 , F04C2220/40
摘要： A 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 difference that decreases via the gas seal and the pressure difference 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），转子轴（12）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通过油封被减小的压力差被调节。 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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公开(公告)号：US20050147517A1
公开(公告)日：2005-07-07
申请号：US10505608
申请日：2003-02-18
CPC分类号： F04C27/009 , F04C2220/40
摘要： A 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 difference that decreases via the gas seal and the pressure difference 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），转子轴（12）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通过油封被减小的压力差被调节。 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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3.发明申请公开(公告)号：US20120034110A1
公开(公告)日：2012-02-09
申请号：US13265093
申请日：2010-11-03
IPC分类号： F04B53/00
CPC分类号： F04B39/064 , F01C21/007 , F01C21/10 , F04C25/02 , F04C29/04 , F04C2230/21 , F04C2240/30
摘要： A vacuum pump housing comprises a pump housing formed in a pumping chamber. In the pumping chamber, pumping elements are arranged. On a planar outer side of the pump housing, a cooling element is arranged. The cooling element comprises at least one cooling channel which is open towards the outer side of the pump housing. The disclosure further relates to a set of cooling elements comprising a plurality of cooling elements having different outer dimensions.
摘要翻译： 真空泵壳体包括形成在泵送室中的泵壳体。 在泵送室中，排列泵送元件。 在泵壳的平面外侧设置有冷却元件。 冷却元件包括至少一个朝向泵壳体的外侧敞开的冷却通道。 本发明还涉及一组冷却元件，其包括具有不同外形尺寸的多个冷却元件。
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公开(公告)号：US09234519B2
公开(公告)日：2016-01-12
申请号：US13376691
申请日：2010-06-07
CPC分类号： F04C29/047 , F04C18/16 , F04C2220/10 , F04C2240/30 , F04C2240/808
摘要： A vacuum pump comprises pumping elements arranged in a pumping chamber. An electric motor drives the pumping element. A frequency inverter is provided for changing the rotational speed of the electric motor. The frequency inverter is arranged in a frequency inverter housing immediately connected to the pump housing. An air cooler and a liquid cooler are arranged in the frequency inverter housing to cool the frequency inverter.
摘要翻译： 真空泵包括设置在泵送室中的泵送元件。 电动机驱动泵送元件。 提供变频器来改变电动机的转速。 变频器布置在立即连接到泵壳体的变频器壳体中。 变频器壳体内设有空气冷却器和液体冷却器，以对变频器进行冷却。
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公开(公告)号：US20090140495A1
公开(公告)日：2009-06-04
申请号：US11887601
申请日：2006-03-30
IPC分类号： F16J15/447
CPC分类号： F16J15/406 , F04C18/16 , F04C27/009 , F04D29/104
摘要： A shaft seal which is in particular suitable for vacuum pumps, such as screw pumps, comprises an inner sealing ring (18) connectable with the shaft, and an outer sealing ring (20) surrounding said inner sealing ring (18). In the outer sealing ring (20) a circumferential groove (30) is provided into which seal gas is adapted to be fed via a feed channel (22). Further, a seal gas disk (34) is connectable with the shaft (10), the seal gas disk (34) comprising a projection (32) extending towards said groove (30). Thereby a seal gas chamber (28) is defined in the groove (30). The seal gas chamber (28) is connected with a sealing gap (40) provided between the inner and the outer sealing ring (18,20) via a chamber gap (36), through which the seal gas is adapted to flow. Adjacent to the sealing gap (40) a separating chamber (42) defined by the inner and the outer sealing ring (18,20) is arranged, the separating chamber (42) being connected with a discharge channel (44) for the purpose of discharging the seal gas.
摘要翻译： 特别适用于诸如螺杆泵的真空泵的轴密封件包括可与轴连接的内密封环（18）和围绕所述内密封环（18）的外密封环（20）。 在外密封环（20）中，设置有周向槽（30），密封气体适于经由供给通道（22）进给。 此外，密封气盘（34）可与轴（10）连接，密封气盘（34）包括朝向所述槽（30）延伸的突起（32）。 因此，在槽（30）中限定密封气室（28）。 密封气室（28）通过室间隙（36）与设置在内密封环（18,20）和外密封环（18,20）之间的密封间隙（40）连接，密封气体可以通过该间隙流动。 在密封间隙（40）的邻近处设置有由内密封环（18,20）和外密封环（18,20）限定的分离室（42），分离室（42）与排出通道（44）连接， 排出密封气体。
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公开(公告)号：US20120189478A1
公开(公告)日：2012-07-26
申请号：US13387324
申请日：2010-07-30
CPC分类号： F04C25/02 , F01C21/007 , F04B37/14 , F04C23/001 , F04C28/02 , F04C2230/604 , F04C2240/30 , F04C2240/70 , F04C2240/805
摘要： A vacuum pump system comprises two vacuum pumps which are connected to each other. In order to create vacuum pump system of a more compact size, the connection between the two vacuum pumps is performed via connection elements directly attached to the pump housing and forming connection sites, and the outlet flange of the upper pump is placed directly on the inlet flange of the lower pump without thereby causing a transmission of larger forces or moments.
摘要翻译： 真空泵系统包括彼此连接的两个真空泵。 为了创建更紧凑尺寸的真空泵系统，两个真空泵之间的连接通过直接连接到泵壳体并形成连接部位的连接元件进行，并且上泵的出口凸缘直接放置在入口 下泵的法兰，从而不会产生较大的力或力矩的传递。
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公开(公告)号：US20120315165A1
公开(公告)日：2012-12-13
申请号：US13376691
申请日：2010-06-07
IPC分类号： F04B17/03
CPC分类号： F04C29/047 , F04C18/16 , F04C2220/10 , F04C2240/30 , F04C2240/808
摘要： A vacuum pump comprises pumping elements arranged in a pumping chamber. An electric motor drives the pumping element. A frequency inverter is provided for changing the rotational speed of the electric motor. The frequency inverter is arranged in a frequency inverter housing immediately connected to the pump housing. An air cooler and a liquid cooler are arranged in the frequency inverter housing to cool the frequency inverter.
摘要翻译： 真空泵包括设置在泵送室中的泵送元件。 电动机驱动泵送元件。 提供变频器来改变电动机的转速。 变频器布置在立即连接到泵壳体的变频器壳体中。 变频器壳体内设有空气冷却器和液体冷却器，以对变频器进行冷却。
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公开(公告)号：US20070297907A1
公开(公告)日：2007-12-27
申请号：US11666980
申请日：2005-10-10
申请人： Wolfgang Giebmanns
发明人： Wolfgang Giebmanns
IPC分类号： F04D29/20
CPC分类号： F01D5/025 , F04D29/023 , F04D29/266 , F05D2230/21 , F05D2230/25 , F05D2300/122 , F05D2300/171 , Y02T50/671
摘要： The invention relates to a vacuum pump impeller (10) which comprises a shaft (14) made of steel, and a one-piece rotor (12) supported by the shaft (14) and made of a material different from the steel of the shaft. The shaft (14) comprises an axial cavity (22), and the rotor (12) comprises an axial projection (16) seated in the cavity (22) in positive and/or non-positive engagement therewith.
摘要翻译： 本发明涉及一种真空泵叶轮（10），其包括由钢制成的轴（14）和由轴（14）支撑并由与轴的钢不同的材料制成的一体式转子（12） 。 轴（14）包括轴向空腔（22），并且转子（12）包括以正向和/或非正接合的方式安置在空腔（22）中的轴向突出部（16）。
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公开(公告)号：US6123516A
公开(公告)日：2000-09-26
申请号：US355222
申请日：1999-07-26
CPC分类号： F04C28/28 , F04B25/00 , F04B37/14 , F04C2220/50
摘要： A vacuum pump, comprising at least one pump chamber (7, 8, 23 to 26) and at least one chamber (3, 5, 27) adjoining the pump chamber. The vacuum pump is fitted with a gas ballast device to avoid damage being caused in the adjoining chambers by the gases being pumped, the ballast gas being delivered via the chamber adjoining the pump chamber.
摘要翻译： PCT No.PCT / EP98 / 00288 Sec。 371日期：1999年7月26日 102（e）日期1999年7月26日PCT提交1998年1月20日PCT公布。 WO98 / 39570 PCT公开号 日期1998年9月11日一种真空泵，包括至少一个泵室（7,8,23至26）和邻近泵室的至少一个室（3,5,27）。 真空泵配有气镇装置，以避免被泵送的气体在相邻的室中造成损坏，压载气体经由邻近泵室的腔室输送。
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公开(公告)号：US20120039737A1
公开(公告)日：2012-02-16
申请号：US13264021
申请日：2010-04-13
IPC分类号： F01C1/16
CPC分类号： F04C18/16 , F04C25/02 , F04C28/26 , F04C29/126
摘要： A screw vacuum pump, in particular for compression against atmospheric pressure, comprises a pump housing defining a suction chamber. Two meshing screw rotors are arranged in the suction chamber. Further, an overpressure outlet provided, which comprises an overpressure opening in a side wall of the suction chamber. Further, an overpressure valve is arranged in the overpressure outlet. The width (b) of the overpressure opening in the longitudinal direction of the screw rotors is smaller than or equal to a tooth width (B) of the screw rotors.
摘要翻译： 特别是用于压缩大气压力的螺杆真空泵包括限定吸入室的泵壳体。 两个啮合的螺杆转子布置在吸入室中。 此外，提供了一个超压出口，其包括在吸入室的侧壁中的过压开口。 此外，超压阀设置在超压出口。 螺杆转子的长度方向上的超压开口的宽度（b）小于或等于螺杆转子的齿宽（B）。
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