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公开(公告)号：US20250116298A1
公开(公告)日：2025-04-10
申请号：US18836228
申请日：2023-02-14
Applicant: Edwards Limited
Inventor： Richard Glyn Horler , Alexander James Patey , Christopher Miles , David Student , Tomas Petr
IPC: F16C33/66 , F04D19/04 , F04D29/063 , F16C19/16 , F16C33/58 , F16C35/077
Abstract: A bearing assembly, method of assembling a bearing assembly and a pump are disclosed. The bearing assembly is for mounting a rotatable shaft of a pump, and comprises an inner ring and an outer ring and a plurality of rollable elements mounted between said inner and outer rings. The bearing assembly has a lubricant directing element extending radially outwards from an outer circumference of the inner ring. The lubricant directing element may comprise a sloped radial surface, at least a portion of the sloped radial surface facing an annular gap between the inner and outer rings, a radially inner portion of the sloped surface being closer to the rollable elements than a radially outer portion of the sloped surface.
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公开(公告)号：US09822788B2
公开(公告)日：2017-11-21
申请号：US14438148
申请日：2013-10-14
Applicant: Edwards Limited
Inventor： Mohammad Eghtesadi Bahrami , Richard Glyn Horler
IPC: F04D29/056 , F04D29/058 , F04D19/04 , F04D27/00 , F04D29/059 , F16C19/52 , F16C32/04 , F04D29/053 , F04D29/26
CPC classification number: F04D29/058 , F04D19/042 , F04D19/048 , F04D27/001 , F04D29/053 , F04D29/056 , F04D29/059 , F04D29/26 , F16C19/52 , F16C32/0444 , F16C2233/00 , F16C2360/45
Abstract: 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.
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公开(公告)号：US11506212B2
公开(公告)日：2022-11-22
申请号：US16753623
申请日：2018-10-05
Applicant: Edwards Limited
Inventor： Peter Meares , Andrew William Snell , Richard Glyn Horler
IPC: F16C19/52 , F16C33/38 , F04D19/04 , F16C19/06 , F04D29/059
Abstract: The present invention provides bearing cage retainer for a rolling element rotor bearing in a vacuum pump. The bearing cage retainer being configured to have an operational arrangement in which, at the maximum longitudinal axial displacement limit of the outer race in the direction of the retainer, the bearing cage retainer is disengaged from the bearing cage, and a failure configuration characterised by the dislocation of the bearing cage by a longitudinal axial displacement of the bearing cage relative to the outer race in the direction of the retainer and in which the bearing cage retainer engages said bearing cage and the bearing cage maintains the separation of the rolling elements within the bearing.
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公开(公告)号：US20200248701A1
公开(公告)日：2020-08-06
申请号：US16753623
申请日：2018-10-05
Applicant: Edwards Limited
Inventor： Peter Meares , Andrew William Snell , Richard Glyn Horler
Abstract: The present invention provides bearing cage retainer for a rolling element rotor bearing in a vacuum pump. The bearing cage retainer being configured to have an operational arrangement in which, at the maximum longitudinal axial displacement limit of the outer race in the direction of the retainer, the bearing cage retainer is disengaged from the bearing cage, and a failure configuration characterised by the dislocation of the bearing cage by a longitudinal axial displacement of the bearing cage relative to the outer race in the direction of the retainer and in which the bearing cage retainer engages said bearing cage and the bearing cage maintains the separation of the rolling elements within the bearing.
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公开(公告)号：US12018695B2
公开(公告)日：2024-06-25
申请号：US18250435
申请日：2021-10-28
Applicant: Edwards Limited
Inventor： Andrew Cobbett , Keith Weston , Richard Glyn Horler
IPC: F04D29/063 , F04D19/04 , F16C33/66
CPC classification number: F04D29/063 , F04D19/042 , F04D19/048 , F16C33/664
Abstract: Oil feed nut for providing a lubricant to a bearing of a vacuum pump comprising a first end and an opposite second end and being configured to be connected to a shaft of the vacuum pump. Further, the oil feed nut comprising an oil feeding element extending between the first end and the second end, wherein the oil feeding element has an increasing diameter towards the second end to create an increasing rotational force acting on the lubricant in order to convey the lubricant towards the second end, and a bearing journal element having a cylindrical surface configured to be received in a back-up bearing of the vacuum pump. Therein, the back-up bearing is arranged in a cartridge of an oil reservoir.
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Patent Agency Ranking
公开(公告)号：US11976662B2
公开(公告)日：2024-05-07
申请号：US17602117
申请日：2020-04-09
Applicant: Edwards Limited
Inventor： Andrew Cobbett , Richard Glyn Horler
CPC classification number: F04D19/042 , F04D29/40 , F04D29/602
Abstract: A vacuum chamber module and an apparatus are disclosed. The vacuum chamber module comprises: a pump wall defining a recess shaped to receive a multi-stage vacuum pump; a plurality of vacuum chambers, each vacuum chamber being configured to be pumped by a respective stage of the multi-stage vacuum pump, each vacuum chamber being defined at least partially by a portion of the pump wall, each vacuum chamber having an pumping port located at a different circumferential position on the pump wall for fluid communication with the respective stage of the multi-stage vacuum pump. In this way, a module is provided which shares components, with the multi-stage pump at least partially accommodated within space otherwise occupied by the vacuum chambers and with the vacuum chambers located around the pump wall, which provides for a simpler and more compact arrangement.
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公开(公告)号：US20220364569A1
公开(公告)日：2022-11-17
申请号：US17602117
申请日：2020-04-09
Applicant: Edwards Limited
Inventor： Andrew Cobbett , Richard Glyn Horler
Abstract: A vacuum chamber module and an apparatus are disclosed. The vacuum chamber module comprises: a pump wall defining a recess shaped to receive a multi-stage vacuum pump; a plurality of vacuum chambers, each vacuum chamber being configured to be pumped by a respective stage of the multi-stage vacuum pump, each vacuum chamber being defined at least partially by a portion of the pump wall, each vacuum chamber having an pumping port located at a different circumferential position on the pump wall for fluid communication with the respective stage of the multi-stage vacuum pump. In this way, a module is provided which shares components, with the multi-stage pump at least partially accommodated within space otherwise occupied by the vacuum chambers and with the vacuum chambers located around the pump wall, which provides for a simpler and more compact arrangement.
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公开(公告)号：US20230400035A1
公开(公告)日：2023-12-14
申请号：US18250435
申请日：2021-10-28
Applicant: Edwards Limited
Inventor： Andrew Cobbett , Keith Weston , Richard Glyn Horler
IPC: F04D29/063 , F04D19/04 , F16C33/66
CPC classification number: F04D29/063 , F04D19/042 , F04D19/048 , F16C33/664
Abstract: Oil feed nut for providing a lubricant to a bearing of a vacuum pump comprising a first end and an opposite second end and being configured to be connected to a shaft of the vacuum pump. Further, the oil feed nut comprising an oil feeding element extending between the first end and the second end, wherein the oil feeding element has an increasing diameter towards the second end to create an increasing rotational force acting on the lubricant in order to convey the lubricant towards the second end, and a bearing journal element having a cylindrical surface configured to be received in a back-up bearing of the vacuum pump. Therein, the back-up bearing is arranged in a cartridge of an oil reservoir.
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公开(公告)号：US11739764B2
公开(公告)日：2023-08-29
申请号：US16968985
申请日：2019-02-12
Applicant: Edwards Limited
Inventor： Mayank Verma , Richard Glyn Horler
CPC classification number: F04D29/324 , B33Y80/00 , F04D19/042 , F04D29/023 , F04D29/321
Abstract: The invention provides a rotor assembly for a vacuum pump. The rotor assembly comprises a hub and one or more rotor blade arrays each comprising at least one rotor blade, each rotor blade extending from a rotor blade root contiguous with the hub to a rotor blade tip, wherein each rotor blade comprises a continuous fibre reinforced matrix material. The invention further provides methods of designing and manufacturing rotor blades, and vacuum systems comprising a component comprising a continuous fibre reinforced matrix material.
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公开(公告)号：US20210054852A1
公开(公告)日：2021-02-25
申请号：US16968985
申请日：2019-02-12
Applicant: Edwards Limited
Inventor： Mayank Verma , Richard Glyn Horler
Abstract: The invention provides a rotor assembly for a vacuum pump. The rotor assembly comprises a hub and one or more rotor blade arrays each comprising at least one rotor blade, each rotor blade extending from a rotor blade root contiguous with the hub to a rotor blade tip, wherein each rotor blade comprises a continuous fibre reinforced matrix material. The invention further provides methods of designing and manufacturing rotor blades, and vacuum systems comprising a component comprising a continuous fibre reinforced matrix material.
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