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公开(公告)号：US11971041B2
公开(公告)日：2024-04-30
申请号：US17629602
申请日：2020-07-24
Applicant: Edwards Limited
Inventor： Michael Andrew Galtry , Miles Geoffery Hockliffe
CPC classification number: F04D19/04 , F04D17/168 , F04D19/044 , F04D29/32
Abstract: A drag pump for pumping fluid from an inlet to an outlet includes a stator and a rotor. One of the stator or rotor includes a disc having a plurality of channels each of the channels extending from an inlet portion of the disc at or close to an inlet edge towards an outlet portion at or close to an outlet edge. The plurality of channels each has walls for guiding fluid flow from the inlet edge to the outlet edge in response to relative motion between the stator and the rotor. The disc further includes a plurality of protrusions extending from the channels, each of the protrusions being arranged to divide a channel at the inlet or the outlet end of the channel, into sub-channels that extend for a portion of a length of the channel and do not extend for a whole length of the channel.
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公开(公告)号：US20150192125A1
公开(公告)日：2015-07-09
申请号：US14411556
申请日：2013-06-10
Applicant: Edwards Limited
CPC classification number: F04C18/02 , F01C1/0215 , F04C18/0215 , F04C18/0246 , F04C18/0253 , F04C18/0261 , F04C18/0269 , F04C23/001 , F04C23/008 , F04C28/06 , F04C28/065 , F04C28/24
Abstract: The present invention is a scroll pump comprising two intermeshing scrolls arranged so that on relative orbital movement of the scrolls gas is pumped from an inlet to an outlet. The scrolls have a plurality of successive scroll wraps I, II, II, IV, V, VI between the inlet and the outlet. There is a single-start condition in which fluid is pumped from the inlet to the outlet along a single flow path extending through each of the scroll wraps in succession and a multi-start condition in which fluid is pumped from the inlet along a plurality of flow paths which extend in parallel through radially adjacent scroll wraps and converge to a single flow path prior to the outlet. A valve arrangement is operable for switching the scroll pump between the single-start and the multi-start conditions.
Abstract translation: 本发明是一种涡旋泵，其包括两个相互啮合的涡卷，其布置成使得在涡旋件的相对轨道运动将气体从入口泵送到出口。 涡卷在入口和出口之间具有多个连续的涡卷包装I，II，II，IV，V，VI。 存在一个单启动条件，其中流体沿着沿着每个涡旋卷片连续延伸的单个流动路径从入口泵送到出口，以及多起动条件，其中流体沿着多个 流动路径平行延伸通过径向相邻的涡卷卷绕并在出口之前会聚到单个流动路径。 阀装置可操作用于在单启动和多起动条件之间切换涡旋泵。
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公开(公告)号：US20220299036A1
公开(公告)日：2022-09-22
申请号：US17629602
申请日：2020-07-24
Applicant: Edwards Limited
Inventor： Michael Andrew Galtry , Miles Geoffery Hockliffe
Abstract: A drag pump for pumping fluid from an inlet to an outlet includes a stator and a rotor. One of the stator or rotor includes a disc having a plurality of channels each of the channels extending from an inlet portion of the disc at or close to an inlet edge towards an outlet portion at or close to an outlet edge. The plurality of channels each has walls for guiding fluid flow from the inlet edge to the outlet edge in response to relative motion between the stator and the rotor. The disc further includes a plurality of protrusions extending from the channels, each of the protrusions being arranged to divide a channel at the inlet or the outlet end of the channel, into sub-channels that extend for a portion of a length of the channel and do not extend for a whole length of the channel.
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公开(公告)号：US09297381B2
公开(公告)日：2016-03-29
申请号：US14411556
申请日：2013-06-10
Applicant: Edwards Limited
CPC classification number: F04C18/02 , F01C1/0215 , F04C18/0215 , F04C18/0246 , F04C18/0253 , F04C18/0261 , F04C18/0269 , F04C23/001 , F04C23/008 , F04C28/06 , F04C28/065 , F04C28/24
Abstract: The present invention is a scroll pump comprising two intermeshing scrolls arranged so that on relative orbital movement of the scrolls gas is pumped from an inlet to an outlet. The scrolls have a plurality of successive scroll wraps I, II, II, IV, V, VI between the inlet and the outlet. There is a single-start condition in which fluid is pumped from the inlet to the outlet along a single flow path extending through each of the scroll wraps in succession and a multi-start condition in which fluid is pumped from the inlet along a plurality of flow paths which extend in parallel through radially adjacent scroll wraps and converge to a single flow path prior to the outlet. A valve arrangement is operable for switching the scroll pump between the single-start and the multi-start conditions.
Abstract translation: 本发明是一种涡旋泵，其包括两个相互啮合的涡卷，其布置成使得在涡旋件的相对轨道运动将气体从入口泵送到出口。 涡卷在入口和出口之间具有多个连续的涡卷包装I，II，II，IV，V，VI。 存在一个单启动条件，其中流体沿着沿着每个涡旋卷片连续延伸的单个流动路径从入口泵送到出口，以及多起动条件，其中流体沿着多个 流动路径平行延伸通过径向相邻的涡卷卷绕并在出口之前会聚到单个流动路径。 阀装置可操作用于在单启动和多起动条件之间切换涡旋泵。
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