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公开(公告)号:US20240167616A1
公开(公告)日:2024-05-23
申请号:US18382665
申请日:2023-10-23
发明人: Jean-Claude ZIHLMANN
CPC分类号: F16M11/2085 , F16C32/06 , F16M11/2092
摘要: The positioning device for positioning a movable element includes a base including a flat guide surface parallel to first and second directions, and a Gantry beam in the second direction spaced from the guide surface. A Gantry drive for moving the beam relative to the base in the first direction, includes two first linear axes extending in the first direction, each including a linear drive. A first air bearing device includes first and second air bearing arrangements including first and second horizontal air bearings for guiding first and second beam ends on guide surface first and second sections, respectively, a third air bearing arrangement on a beam central section including at least third and fourth horizontal air bearings for guiding the beam central section on a guide surface third section and including at least one lateral air bearing for guiding the beam on a guide beam flat side surface.
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公开(公告)号:US11988252B2
公开(公告)日:2024-05-21
申请号:US17519632
申请日:2021-11-05
发明人: Zhansheng Liu , Shubo Yu , Yuanli Sun , Guanghui Zhang
CPC分类号: F16C32/0603 , F16C32/0666 , G01M1/04 , G01M1/12
摘要: The present disclosure provides a split-type swing angle adjustable aerostatic bearing device for rotor static balance and an air flotation support device for static balance of rotating ring-shaped parts, the split-type swing angle adjustable aerostatic bearing device for rotor static balance and an air flotation support device for static balance of rotating ring-shaped parts belong to a field of static balance detection, and aims to solve a problem of low measurement precision of rotor and realize static balance of rotating ring-shaped parts. A gas mold, having a certain bearing capacity, is formed between an outer surface of the air flotation support cover under the bearing base and a concave surface of the upper base, so that the bearing base is floated to realize an automatic centering of the rotor static balancing device.
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公开(公告)号:US20240141898A1
公开(公告)日:2024-05-02
申请号:US18242853
申请日:2023-09-06
发明人: Fumiya SHINODA , Fumihiro Suzuki
CPC分类号: F04C29/04 , F04C29/02 , F16C32/0629 , F16C37/002
摘要: A fluid machine includes a plurality of fluid dynamic plain bearings supporting a rotating member. The fluid dynamic plain bearings each include: a top foil; a bump foil; and a bearing housing. The top foil has a bearing surface that has one end portion and the other end portion in a circumferential direction of the bearing surface. The top foil has a fixed end and a free end respectively formed at the one end portion and the other end portion. A movement of the free end in an axial direction of the rotating member is regulated by a regulating member. A clearance through which a fluid flows is formed between the fixed end and the free end. The free end has a discharge passage through which a foreign substance contained in the fluid is discharged from the clearance. The discharge passage is formed through the free end.
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公开(公告)号:US11898921B2
公开(公告)日:2024-02-13
申请号:US17746438
申请日:2022-05-17
发明人: Jason Steuber
CPC分类号: G01L25/00 , F16C32/0607
摘要: An air bearing for calibrating a force measurement device comprises an inner wall, an outer wall, an upper wall, a lower wall, an internal chamber, an object retention opening, and a plurality of air outlets. The inner wall and outer wall each have a cylindrical shape with the outer wall being concentric with the inner wall. The upper wall and lower wall each have an annular shape and are attached to the inner wall and the outer wall. The internal chamber is formed by inner surfaces of the four walls, and is configured to retain compressed air. The object retention opening is formed by an outer surface of the inner wall and is configured to receive and retain an object. The air outlets are positioned along the inner wall and are configured to allow compressed air to flow from the internal chamber to the object retention opening.
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公开(公告)号:US11898601B2
公开(公告)日:2024-02-13
申请号:US17407778
申请日:2021-08-20
发明人: Siegfried Alexander Tromp , Antonie Hendrik Verweij , Abraham Alexander Soethoudt , Jan Pieter Van De Poel , Mark Constant Johannes Baggen
IPC分类号: F16C32/06 , H01L21/683 , F16C29/02 , G03F7/00 , G03F7/20
CPC分类号: F16C32/0611 , F16C29/025 , F16C32/0607 , G03F7/20 , G03F7/707 , G03F7/708 , H01L21/6831 , H01L21/6833
摘要: A support table for a lithographic apparatus, a method of loading a substrate, a lithographic apparatus and a method for manufacturing a device using a lithographic apparatus. In one arrangement, a support table is configured to support a substrate. The support table has a base surface. The base surface faces a surface of the substrate when the substrate is supported by the support table. One or more gas cushion members are provided above the base surface. Each of the gas cushion members includes a recess. The recess is shaped and configured such that a lowering of the substrate into a position on the support table at which the substrate is supported by the support table causes a localised build-up of pressure within the recess. The localized build-up of pressure provides a localised gas cushioning effect during the lowering of the substrate.
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公开(公告)号:US20230392667A1
公开(公告)日:2023-12-07
申请号:US18172845
申请日:2023-02-22
发明人: Hyeong Jun KIM , Jeen Gi KIM , Min Jae KANG , Dong Wook KIM
CPC分类号: F16F9/535 , F16C32/0633 , F16C33/78 , F16C2210/04 , F16F2222/06 , F16F2224/045 , F16F2230/0094 , F16F2230/30 , F16F2232/02
摘要: Provided are a magneto-rheological rotating load device and a method of controlling the same. A magneto-rheological rotating load device according to the present invention includes a housing, a yoke part disposed in the housing, a shaft rotatably installed in the housing, one or more rotary rings connected to the shaft and configured to rotate in conjunction with a rotation of the shaft, a coil part disposed in the housing, a magneto-rheological fluid with which at least a part in the housing is filled, a cover part disposed at an upper end of the yoke part, and a bearing part disposed to be in contact with an outer peripheral surface of the shaft and configured to support the rotation of the shaft, in which a leak prevention means configured to prevent a leak of the magneto-rheological fluid is at least provided between the bearing part and the cover part.
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公开(公告)号:US11827085B2
公开(公告)日:2023-11-28
申请号:US17398512
申请日:2021-08-10
CPC分类号: B60K1/00 , F16C32/0629 , F16C32/0662 , F16H57/037 , H02K5/1672 , H02K7/006 , H02K7/083 , H02K7/116 , B60K2001/001 , F16H2057/02034 , F16H2057/02052
摘要: In one aspect, an improved electric transmission assembly is provided that includes a hydrodynamic bearing. The electric transmission assembly includes a stator arranged inside of an outer housing. A rotor is configured to be rotatably driven by the stator. The rotor can include a rotor shaft having a first gear configured to driveably engage with a differential. A hydrodynamic bearing is arranged between the rotor shaft and the outer housing. The hydrodynamic bearing is formed from a non-conductive material. Specifically, the hydrodynamic bearing can be formed from a polymeric or plastic material. In one aspect, the hydrodynamic bearing is formed from a non-metallic material.
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公开(公告)号:US11725588B2
公开(公告)日:2023-08-15
申请号:US17311713
申请日:2020-07-20
申请人: Stein Seal Company
发明人: Glenn M. Garrison
IPC分类号: F02C7/28 , F16C32/06 , F01D11/04 , F16J15/00 , F16J15/3244
CPC分类号: F02C7/28 , F16J15/006 , F16J15/3244 , F05D2220/32 , F05D2240/55
摘要: An intershaft seal assembly for use between a rotatable outer structure and an inner structure within a turbine engine is presented. The assembly includes a primary sealing ring, a translatable carrier, a secondary sealing ring(s), a lower-pressure chamber, a higher-pressure chamber, a first channel(s), and a second channel(s). The primary ring is disposed within and extends from a circumferential groove about the carrier so as to sealingly engage the rotatable outer structure. The primary ring rotates within the groove and with the rotatable outer structure. Each secondary ring is interposed between the carrier and the inner structure. The carrier slidingly contacts the secondary ring(s). The lower-pressure chamber is generally defined by the carrier and the inner structure adjacent to a higher-pressure side. The higher-pressure chamber is generally defined by the carrier and the inner structure adjacent to a lower-pressure side. Each first channel traverses the carrier so that a gas from the lower-pressure side may enter the lower-pressure chamber. Each second channel traverses the carrier so that a gas from the higher-pressure side may enter the higher-pressure chamber. The sum of the translation-resistant forces (FTTR) encountered by the carrier is less than the translation-resistance force (FTR) encountered by the primary seal ring.
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公开(公告)号:US11719277B2
公开(公告)日:2023-08-08
申请号:US17584857
申请日:2022-01-26
CPC分类号: F16C17/06 , F03D80/70 , F16C17/03 , F16C17/035 , F16C32/067 , F16C2229/00 , F16C2360/31
摘要: Provided is a bearing for a wind turbine, including a first and a second ring arranged radially to each other with one ring rotating relative to the other ring around an axis of rotation. The first ring has a cylindrical ring section and a collar extending radially from the ring section. The collar has an axial support area supporting axial bearing elements, wherein several pretension elements creating compressive stress are fixed to the first ring in the section where the collar extends from the ring section.
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公开(公告)号:US20230228295A1
公开(公告)日:2023-07-20
申请号:US17919275
申请日:2021-04-09
申请人: SMS group GmbH
发明人: Roland WILL , Andrej TUCAK
CPC分类号: F16C32/0629 , B21B13/00 , F16C2322/12
摘要: A roll stand (1) includes a roll (3), in particular a backup roll, mounted via oil film bearings (2). Each oil film bearing (2) has a sealing system for sealing the oil film bearing (2) to prevent oil leakage and a coolant ingress. The oil film bearing (2) is integrated into an oil-circulating lubrication system (4), which is fluidically connected to the oil film bearing (2) via oil feed lines (5) and an oil discharge line (6). A first sensor (11) is arranged in the oil feed line (5) and a second sensor (12) is arranged in the oil discharge line (6). The two sensors (11, 12) are designed to determine the coolant content in the relevant oil volume flow.
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