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81. 发明授权

US4082376A Bearing arrangement 失效
标题翻译：轴承安排
公开(公告)号：US4082376A
公开(公告)日：1978-04-04
申请号：US637744
申请日：1975-12-04
申请人： Heinz Wehde , Willi Becker
发明人： Heinz Wehde , Willi Becker
IPC分类号： F16C32/04 , F04D13/02 , F04D19/04 , F16C39/06 , H02K7/09 , F16C39/00
CPC分类号： F16C32/0444 , F04D19/042 , F04D19/048 , H02K7/09 , F16C2300/62 , F16C2360/45
摘要： A magnetic bearing arrangement for a rotor rotating in a stator comprises a first magnetic bearing with at least one permanent magnet on the stator or rotor cooperating with component parts on the rotor or stator respectively composed, at least partially, of ferromagnetic and/or permanent magnetic material, a second magnetic bearing with at least one actively controlled electromagnet on the stator cooperating with component parts on the rotor respectively composed at least partially of ferromagnetic and/or permanent magnetic material, and a sensor for sensing the axial position of the rotor and at least one damping circuit for damping oscillations in a radial direction or about axes perpendicular to the axis of rotation of the rotor, the two magnetic bearings having a substantially co-axial construction to provide passive stabilization in a radial direction.

82. 发明专利

TW200716869A 渦輪機 TURBO-MACHINE 审中-公开
简体标题：涡轮机 TURBO-MACHINE
公开(公告)号：TW200716869A
公开(公告)日：2007-05-01
申请号：TW095127277
申请日：2006-07-26
申请人：藍伯德真空股份有限公司 LEYBOLD VAKUUM GMBH
发明人：羅蘭布魯門薩爾 BLUMENTHAL, ROLAND
IPC分类号： F04D
CPC分类号： F16C17/18 , F01D25/16 , F04D19/048 , F05D2240/51 , F05D2240/52 , F16C27/02 , F16C32/0442 , F16C39/02 , F16C2360/45
摘要：一種快速旋轉之渦輪機,包括一用於支承一轉子(12)之磁浮軸承(22、23)及一安全軸承。該安全軸承被構成為一滑動軸承(26、27)、並包括一定子側軸承殼(28)、一轉子側軸承軸(20)、及一位於該軸承殼(28)與該軸承軸(20)間之中間軸襯(30)。該中間軸襯(30)藉由一圓形間隙(33、34)而被保持分別與該軸承軸(20)與該軸承殼(28)兩者相隔一距離。該中間軸襯(30)係可相對於該軸承殼(28)與該軸承軸(20)而轉動。由於此一構成,該滑動軸承(26)得包括兩個滑動面積對,而所有已產生之動態力被分佈於該等滑動面積對上,藉此得以顯著地減低磨損。此允許在一以磁浮方式支承之快速旋轉渦輪機中將滑動軸承用作為安全軸承。
简体摘要：一种快速旋转之涡轮机,包括一用于支承一转子(12)之磁浮轴承(22、23)及一安全轴承。该安全轴承被构成为一滑动轴承(26、27)、并包括一定子侧轴承壳(28)、一转子侧轴承轴(20)、及一位于该轴承壳(28)与该轴承轴(20)间之中间轴衬(30)。该中间轴衬(30)借由一圆形间隙(33、34)而被保持分别与该轴承轴(20)与该轴承壳(28)两者相隔一距离。该中间轴衬(30)系可相对于该轴承壳(28)与该轴承轴(20)而转动。由于此一构成,该滑动轴承(26)得包括两个滑动面积对,而所有已产生之动态力被分布于该等滑动面积对上,借此得以显着地减低磨损。此允许在一以磁浮方式支承之快速旋转涡轮机中将滑动轴承用作为安全轴承。

83. 发明公开

US20240141907A1 VACUUM PUMP AND VACUUM EXHAUST APPARATUS 审中-公开
公开(公告)号：US20240141907A1
公开(公告)日：2024-05-02
申请号：US18546510
申请日：2022-02-25
申请人： Edwards Japan Limited
发明人： Takashi Kabasawa
IPC分类号： F04D19/04 , F04D29/58 , F04D29/70
CPC分类号： F04D19/042 , F04D29/5853 , F04D29/701 , F04D19/048
摘要： A vacuum pump capable of improving cleaning performance is provided. A heater, purge gas introduction ports, a purge gas valve, and an exhaust valve are provided. As an operation mode, a cleaning operation mode capable of sublimating deposits in a turbomolecular pump is provided. In the cleaning operation mode, at least one of the heater, the purge gas valve, and the exhaust valve is controlled, and a pressure in at least a part of an interior of the turbomolecular pump is increased to a pressure region with which a temperature is greater than or equal to a sublimation temperature of the deposits in the turbomolecular pump and that causes an intermediate flow or a viscous flow.

84. 发明授权

US11680585B2 Vacuum pump 有权
公开(公告)号：US11680585B2
公开(公告)日：2023-06-20
申请号：US17769560
申请日：2020-10-27
申请人： Edwards Japan Limited
发明人： Yoshiyuki Takai , Tooru Miwata
IPC分类号： F04D29/58 , F04D19/04 , F04D29/52 , F04D29/54
CPC分类号： F04D29/5853 , F04D19/042 , F04D29/522 , F04D29/541 , F04D29/542 , F04D19/048
摘要： A vacuum pump includes a rotor provided with a plurality of rotor blades and a rotor cylinder portion, a driving portion, a bearing, stator blades, a thread groove stator that is disposed downstream of the stator blades and has an inner peripheral surface facing an outer peripheral surface of the rotor cylinder portion, and a heat insulating wall disposed downstream of the thread groove. The heat insulating wall includes a ring-shaped annular portion, and a substantially cylindrical wall portion extending from an inner portion of the annular portion in the radial direction to the upstream side and forming a flow path on the outer peripheral surface side. A first corner portion is formed between an upstream-side surface of the annular portion and the outer peripheral surface of the wall portion, the first corner portion being formed in an arc shape.

85. 发明授权

US10876540B2 Electromagnetic rotating device and vacuum pump equipped with electromagnetic rotating device 有权
公开(公告)号：US10876540B2
公开(公告)日：2020-12-29
申请号：US14443102
申请日：2013-10-09
申请人： Edwards Japan Limited
发明人： Hideki Omori
IPC分类号： F04D29/058 , F04D25/06 , F16C32/04 , F04D19/04 , F04D27/02 , H02P3/18 , H02P6/24 , H02P6/08 , F04D29/053 , H02P3/14
CPC分类号： F04D29/058 , F04D19/048 , F04D25/06 , F04D25/0606 , F04D27/0261 , F04D29/053 , F16C32/0457 , H02P3/14 , H02P3/18 , H02P6/085 , H02P6/24 , F16C2360/45
摘要： An electromagnetic rotating apparatus may include an electromagnet winding that consumes power generated during regeneration. A motor voltage monitoring circuit detects that a voltage at a motor driving main circuit is higher than a voltage during normal operation, due to overshoot or the like after arrival at a set speed during deceleration or acceleration of a motor. The motor voltage monitoring circuit transmits a high-voltage detection signal to a braking current adjusting circuit and a magnetic bearing control circuit. Upon receiving the high-voltage detection signal, the braking current adjusting circuit reduces a braking current command value for the motor so as to maintain an excitation voltage for the motor constant or reduce this excitation voltage, and an amplifier control circuit in the magnetic bearing control circuit increases a bias current flowing through an electromagnet winding to increase power consumption.

86. 发明申请

US20170346356A1 VACUUM PUMP 审中-公开
公开(公告)号：US20170346356A1
公开(公告)日：2017-11-30
申请号：US15392155
申请日：2016-12-28
申请人： Shimadzu Corporation
发明人： Taiki NISHIMURA , Koichi SHIMIZU , Osamu ASHIDA
IPC分类号： H02K1/30 , H02K1/27 , F04D29/053 , F04D25/06 , F04D29/26 , H02K7/09 , F16C32/04
CPC分类号： H02K1/30 , F04D19/042 , F04D19/048 , F04D25/06 , F04D25/0606 , F04D29/053 , F04D29/058 , F04D29/26 , F16C19/527 , F16C32/0402 , F16C32/0425 , F16C32/0431 , F16C2240/60 , F16C2360/45 , H02K1/272 , H02K1/2733 , H02K1/28 , H02K7/09
摘要： A vacuum pump for rotary driving a rotor by a motor to perform vacuum pumping, wherein a motor rotor of the motor includes a yoke fixed to a shaft of the rotor, and a permanent magnet held at the yoke, and the yoke includes a holding portion provided apart from the shaft and configured to hold the permanent magnet, and a pair of fitting portions provided respectively at both ends of the holding portion in an axial direction and bonded to the shaft by fitting, and a radial thickness dimension of each fitting portion is set less than that of the holding portion.

87. 发明授权

US09822788B2 Vacuum pump with back-up bearing contact sensor 有权
公开(公告)号：US09822788B2
公开(公告)日：2017-11-21
申请号：US14438148
申请日：2013-10-14
申请人： Edwards Limited
发明人： Mohammad Eghtesadi Bahrami , Richard Glyn Horler
IPC分类号： F04D29/056 , F04D29/058 , F04D19/04 , F04D27/00 , F04D29/059 , F16C19/52 , F16C32/04 , F04D29/053 , F04D29/26
CPC分类号： F04D29/058 , F04D19/042 , F04D19/048 , F04D27/001 , F04D29/053 , F04D29/056 , F04D29/059 , F04D29/26 , F16C19/52 , F16C32/0444 , F16C2233/00 , F16C2360/45
摘要： The present invention relates to a vacuum pump comprising a vacuum pumping mechanism comprising a rotor supported for rotation by a drive shaft, a first bearing assembly for controlling movement of the rotor during rotation of the drive shaft, a back-up bearing assembly for limiting said movement and a sensor for sensing when said movement is limited by the back-up bearing assembly.

88. 发明申请

US20170089351A1 ELONGATED PERMANENT RING MAGNET WITH A PLURALITY OF AXIALLY DIRECTED MAGNETIZED ZONES AND MAGNETIC BEARING WITH SUCH A RING MAGNET 审中-公开
公开(公告)号：US20170089351A1
公开(公告)日：2017-03-30
申请号：US15311887
申请日：2015-05-05
申请人： Edwards Limited
发明人： Andrew WAYE , Barrie Dudley BREWSTER
IPC分类号： F04D29/058 , H02K7/09 , H01F7/02 , F16C32/04
CPC分类号： F04D29/058 , F04D19/048 , F16C32/0425 , F16C2360/45 , H01F7/021 , H02K7/09
摘要： The present invention is directed to a magnet for a magnetic bearing arrangement, a bearing arrangement comprising said magnet, and a vacuum pump comprising said bearing arrangement. In particular the invention can be particularly useful in a magnetic bearing arrangement that reduces stray magnetic fields for a turbomolecular vacuum pump, although it is understood that the invention is not limited to this field and other applications will be understood by the skilled person.

89. 发明申请

US20160312826A1 PROTECTIVE BEARING, BEARING UNIT, AND VACUUM PUMP 审中-公开
标题翻译：保护轴承，轴承单元和真空泵
公开(公告)号：US20160312826A1
公开(公告)日：2016-10-27
申请号：US15028095
申请日：2014-09-10
申请人： Edwards Japan Limited
发明人： Toshiaki Kawashima , Isao Nakagawa
IPC分类号： F16C32/04 , F04D27/00 , F16C19/06 , F04D19/04
CPC分类号： F16C32/0402 , F01D25/16 , F04D19/042 , F04D19/048 , F04D27/00 , F04D29/058 , F04D29/059 , F05D2240/30 , F05D2240/511 , F05D2240/515 , F05D2260/941 , F16C19/06 , F16C32/0442 , F16C39/02 , F16C2300/62 , F16C2360/45
摘要： To provide a protective bearing, a bearing unit, and a vacuum pump that are configured to prevent a touchdown bearing from co-rotating with the rotation of a rotor that is supported in a levitated state and a non-contact state. Slits are formed in the radial direction at four sections on the inner side of a securing member. A pair of permanent magnets of the same polarity is fixed to the upper surface of each of the four regions partitioned by the slits. The inner rim of the securing member has projections that are formed circumferentially downward. An attractive force is generated between an outer ring and an inner ring. An attractive force is also generated between the projections projecting toward the inner end of the securing member and the inner ring. Due to this configuration, even when a rotational torque is applied to the inner ring of the touchdown bearing as a result the rotation of the rotating body, co-rotation of the inner ring does not occur due to a large holding torque.
摘要翻译：提供一种保护轴承，轴承单元和真空泵，其构造成防止触地轴承随着处于悬浮状态和非接触状态的转子的旋转而共旋转。在固定部件的内侧的四个部位沿径向形成狭槽。一对具有相同极性的永磁体被固定在由狭缝分隔的四个区域中的每一个的上表面上。固定构件的内缘具有周向形成的突起。在外环和内圈之间产生吸引力。在朝向固定构件的内端突出的突起与内圈之间也产生吸引力。由于这种构造，即使当转向力矩被施加到触地轴承的内圈时，由于旋转体的旋转，即使由于大的保持转矩而不会发生内圈的共同转动。

90. 发明申请

US20140212296A1 METHOD OF COATING OF AND/OR APPLYING LACQUER ON MAGNETIC RINGS OF A ROTOR MAGNETIC BEARING, ROTOR MAGNETIC BEARING, AND VACUUM PUMP 审中-公开
标题翻译：旋转磁体轴承，转子磁性轴承和真空泵的磁环上涂覆和/或涂布拉丝机的方法
公开(公告)号：US20140212296A1
公开(公告)日：2014-07-31
申请号：US14140705
申请日：2013-12-26
申请人： Pfeiffer Vacuum GmbH
发明人： Marco Antonacci , Herbert Stammler
IPC分类号： F04D19/04 , F01D5/06 , H02K1/22
CPC分类号： F04D19/048 , B05D1/002 , B05D1/02 , B05D3/0493 , F01D5/06 , F16C32/0425 , F16C32/0468 , F16C2360/45 , H02K1/22
摘要： A method of at least one of coating of and applying lacquer on magnetic rings of a rotor magnetic bearing mounted on the rotor, includes arranging of the magnetic rings (4) of the magnetic bearing on the rotor (1) at a location (3) provided for the magnetic rings (4), and coating of and/or applying lacquer on exposed surfaces (10) of the magnetic rings (4), respectively. The rotor includes magnetic rings arranged thereon or therein and coated or having lacquer applied thereon in accordance with the above-described method, and a vacuum pump includes such a rotor.
摘要翻译：在安装在转子上的转子磁性轴承的磁环上涂覆和施加漆的至少之一的方法包括在位置（3）处将磁性轴承的磁环（4）布置在转子（1）上，分别设置在磁环（4）上，以及分别在磁环（4）的暴露表面（10）上涂覆和/或涂漆。转子包括根据上述方法设置在其上或其中并涂覆有涂漆或具有漆的磁环，并且真空泵包括这种转子。

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