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1. 发明申请

WO2021234395A1 SCROLL PUMP 审中-公开
公开(公告)号：WO2021234395A1
公开(公告)日：2021-11-25
申请号：PCT/GB2021/051226
申请日：2021-05-20
申请人： EDWARDS LIMITED
发明人： SCHOFIELD, Nigel Paul , HOLBROOK, Alan Ernest Kinnaird
IPC分类号： F04C18/02 , F04C25/02 , F04C27/00 , F01C19/00
摘要： A scroll pump and scroll vacuum pump are disclosed. The scroll vacuum pump comprises: an orbiting scroll; and a fixed scroll; and a pump housing enclosing a pump chamber of the scroll vacuum pump. The pump further comprises an axially extending drive shaft having an eccentric shaft portion, the orbiting scroll being mounted on the eccentric shaft portion such that rotation of the drive shaft imparts an orbiting motion to the orbiting scroll relative to the fixed scroll; an axial adjustment mechanism for adjusting an axial position of the orbiting scroll and thereby a distance between the fixed scroll and the orbiting scroll, the axial adjustment mechanism comprising a plurality of adjustment members angularly spaced around the drive shaft and extending through the pump housing towards the orbiting scroll, the plurality of adjustment members each being configured to provide an independently adjustable axial position of the orbiting scroll; and a plurality of sealing means for isolating the plurality of adjustment members from the pump chamber, the plurality of sealing means extending around each of the plurality of adjustment members and comprising at least one flexible portion such that one end of the sealing means may orbit relative to a fixed other end of the sealing means.

2. 发明申请

WO2019171075A1 VACUUM PUMP AND VACUUM PUMP ROTOR 审中-公开
公开(公告)号：WO2019171075A1
公开(公告)日：2019-09-12
申请号：PCT/GB2019/050651
申请日：2019-03-08
申请人： EDWARDS LIMITED
发明人： TURNER, Neil , TURRELL, David Alan , HOLBROOK, Alan Ernest Kinnaird , WICKES, Matthew Richard
IPC分类号： F04C18/12 , F04C25/02
摘要： A rotor and vacuum pump are disclosed for a vacuum pump. The rotor comprises: an outer profile and a hollow inner portion; at least one body within the hollow inner portion; and body constraining means for constraining the body. The at least one body being is such that movement in a direction parallel to a direction of rotation is constrained by the constraining means; and in response to a deceleration of the rotor that is greater than a predetermined critical value a predetermined force is exerted on the body that is sufficient to overcome the constraint exerted by the constraining means and the body moves within the hollow inner portion.

3. 发明申请

WO2018033713A1 ROTATING MACHINE AND METHOD OF MANUFACTURE 审中-公开
标题翻译：旋转机械和制造方法
公开(公告)号：WO2018033713A1
公开(公告)日：2018-02-22
申请号：PCT/GB2017/052388
申请日：2017-08-14
申请人： EDWARDS LIMITED
发明人： HOLBROOK, Alan Ernest Kinnaird , TATTERSALL, Jack Raymond
IPC分类号： F16C39/02 , F16C39/06 , F16C25/08 , F04C18/12
摘要： A method of manufacturing a rotating machine and a rotating machine are disclosed. The rotating machine comprises: at least one rotatable shaft supported on at least one bearing within a clearance bore; the bearing comprising an inner ring and an outer ring enclosing rolling elements The clearance bore comprises an inner diameter that is larger than a diameter of the outer ring of the bearing; and the rotating machine comprises a bearing biasing means for biasing the bearing in a radial direction away from a central position of the bore so as to constrain radial movement of the shaft.
摘要翻译：公开了一种制造旋转机器和旋转机器的方法。旋转机器包括：至少一个可旋转的轴，其支撑在间隙孔内的至少一个轴承上; 所述轴承包括包围滚动元件的内圈和外圈。所述间隙孔的内径大于所述轴承的外圈的直径; 并且旋转机器包括轴承偏置装置，该轴承偏置装置用于偏离轴承的径向方向远离孔的中心位置，以限制轴的径向移动。

4. 发明申请

WO2014006364A1 SCROLL COMPRESSOR 审中-公开
标题翻译：滚动压缩机
公开(公告)号：WO2014006364A1
公开(公告)日：2014-01-09
申请号：PCT/GB2013/051517
申请日：2013-06-10
申请人： EDWARDS LIMITED
发明人： STONES, Ian David , HOLBROOK, Alan Ernest Kinnaird
IPC分类号： F04C18/02
CPC分类号： F04C23/003 , F04C18/0215 , F04C18/0269 , F04C18/045 , F04C23/001 , F04C28/24
摘要： The present invention relates to a scroll compressor (10) comprising a scroll pumping arrangement comprising two scrolls (20, 22) each having a scroll wall (28, 34) with inner and outer scroll wall surfaces which co-operate with respective outer and inner scroll wall surfaces of the other scroll wall providing two pairs of co-operating surfaces which, on relative orbiting motion of the scrolls, pump fluid from an inlet to an outlet of the arrangement, the scroll walls having a respective plurality of wraps I, II, III, IV, V between the inlet (24) and the outlet (26) and wherein the co-operating scroll wall surfaces of one of said pairs of at least one wrap are generally circular.
摘要翻译：涡旋压缩机技术领域本发明涉及一种涡旋压缩机（10），其包括涡旋泵送装置，其包括两个涡旋件（20,22），每个涡旋件具有涡旋壁（28,34），内壁和外涡旋壁面与相应的外侧和内侧另一个涡旋壁的涡旋壁表面提供两对协作表面，其在涡旋件的相对运动运动的情况下将泵流体从该入口排出到排出口，该涡旋壁具有相应的多个涡卷I，II ，入口（24）和出口（26）之间的III，IV，V，并且其中所述成对的至少一个包裹物之一的协作涡旋壁表面通常是圆形的。

5. 发明申请

WO2012004579A2 PUMP 审中-公开
公开(公告)号：WO2012004579A2
公开(公告)日：2012-01-12
申请号：PCT/GB2011/050947
申请日：2011-05-19
申请人： EDWARDS LIMITED , COLLIE, Clive Frederick , HOLBROOK, Alan Ernest Kinnaird , BEDWELL, David
发明人： COLLIE, Clive Frederick , HOLBROOK, Alan Ernest Kinnaird , BEDWELL, David
IPC分类号： F04C18/02
CPC分类号： F04D29/046 , F01C21/003 , F01C21/02 , F04C18/0215 , F04C2240/50 , F16C25/083 , F16C2360/42
摘要： The present invention relates to a pump (10) comprising a shaft (15) supported for rotation by a bearing (38) carried by a bearing carrier (48), said bearing carrier having a generally outer radial portion (52) which is fixed relative to a pump housing (12) and a generally inner radial portion (54) which is fixed relative to the bearing, wherein the carrier is stiff in a radial direction between said inner and outer portions and flexible in an axial direction for restraining radial movement of the bearing and allowing axial movement.
摘要翻译：本发明涉及一种泵（10），其包括轴承（15），该轴（15）由轴承（48）承载的轴承（38）支撑，所述轴承承载件具有大致外径向部分（52）到相对于轴承固定的泵壳体（12）和大致内径部分（54），其中，所述载体在径向方向上在所述内部和外部之间是刚性的，并且在轴向方向上柔性以限制径向运动轴承允许轴向运动。

6. 发明申请

WO2022096859A1 SCROLL PUMP 审中-公开
公开(公告)号：WO2022096859A1
公开(公告)日：2022-05-12
申请号：PCT/GB2021/052799
申请日：2021-10-28
申请人： EDWARDS LIMITED
发明人： HOLBROOK, Alan Ernest Kinnaird , BEDWELL, David , SCHOFIELD, Nigel Paul
IPC分类号： F04C18/02 , F04C27/00 , F04C29/00
摘要： Scroll pump comprising an inlet and an outlet, a fixed scroll (120) intermeshed with an orbiting scroll (130) to define a space therebetween for pumping fluid from the inlet to the outlet, a biasing apparatus (170) configured to bias the orbiting scroll (130) against the fixed scroll (120), a fluid recirculation channel (190a) extending from the space to the inlet through either the fixed scroll (130) or the orbiting scroll (120), and a fluid recirculation valve (190b) disposed in the fluid recirculation channel (190a). The fluid recirculation valve (190b) is configured to permit flow of fluid from the space to the inlet through the fluid recirculation channel (190a), when in an open state, and to block flow of fluid through the fluid recirculation channel (190a), when in a closed state, and to switch from the closed state to the open state when a pressure differential across the fluid recirculation valve (190b) is equal to or exceeds a certain threshold value.

7. 发明申请

WO2021176222A1 SCROLL PUMP APPARATUS AND METHOD 审中-公开
公开(公告)号：WO2021176222A1
公开(公告)日：2021-09-10
申请号：PCT/GB2021/050539
申请日：2021-03-04
申请人： EDWARDS LIMITED
发明人： HOLBROOK, Alan Ernest Kinnaird
IPC分类号： F04C18/02 , F04C25/02 , F04C27/00
摘要： Aspects of the present invention relate to a scroll pump (1; 101). The scroll pump (1; 101) has an axially extending drive shaft (15; 115); a fixed scroll (5; 105); and an orbiting scroll (3; 103). The drive shaft (15; 115) has an eccentric shaft portion (119) on which the orbiting scroll (3; 103) is mounted. The fixed scroll (5; 105) has a fixed scroll wall (11; 111) extending axially from a fixed scroll base (13; 113). The orbiting scroll (3; 103) has an orbiting scroll wall (7; 107) extending axially from an orbiting scroll base (9; 109) towards the fixed scroll (5; 105). At least one sensor (27; 127-n) may optionally be provided for determining a spacing between the orbiting scroll (3; 103) and/or the fixed scroll (5; 105). The scroll pump (1; 101) has at least one actuator (29; 129-n) for adjusting the axial position of the orbiting scroll (3; 103) and/or the fixed scroll (5; 105) in dependence on a determined spacing. Alternatively, or in addition, the scroll pump (1; 101) may be configured to adjust the orientation of the orbiting scroll (3; 103) and/or the fixed scroll (5; 105). Aspects of the present invention also relate to a method of configuring the scroll pump (1; 101).

8. 发明申请

WO2018138489A1 VACUUM PUMP WITH BIASED STATOR SEALS AND METHOD OF MANUFACTURE THEREOF 审中-公开
公开(公告)号：WO2018138489A1
公开(公告)日：2018-08-02
申请号：PCT/GB2018/050194
申请日：2018-01-24
申请人： EDWARDS LIMITED
发明人： HOLBROOK, Alan Ernest Kinnaird , BEDWELL, David
IPC分类号： F01C19/00 , F01C21/02 , F04C25/02 , F04C27/00 , F16J15/06
摘要： A vacuum pump and method of manufacture thereof, the vacuum pump comprising: two half shell stators components mounted together at longitudinal contact faces and defining one or more pumping chambers; longitudinal seals for sealing between the longitudinal contact faces of the two half shell stators on either side of the pumping chamber. The longitudinal seals are mounted within respective grooves in at least one of the half shell stators, the respective grooves being wider than the longitudinal seal over at least a portion of the longitudinal seal allowing for some lateral movement. The longitudinal seal comprises a deviation from a longitudinal axis, the deviation abutting against one surface of the groove and biasing at least a portion of the longitudinal seal towards an opposite surface of the groove, the opposite surface comprising the surface closest to the pumping chamber.

9. 发明申请

WO2014083305A2 VACUUM PUMP 审中-公开
标题翻译：真空泵
公开(公告)号：WO2014083305A2
公开(公告)日：2014-06-05
申请号：PCT/GB2013/052771
申请日：2013-10-24
申请人： EDWARDS LIMITED
发明人： KAILASAM, Sivabalan , HOLBROOK, Alan Ernest Kinnaird
IPC分类号： F04C25/02
CPC分类号： F04C27/003 , F01C21/10 , F04C18/123 , F04C18/126 , F04C23/001 , F04C25/02 , F04C27/008 , F04C2230/60 , F04C2230/604
摘要： The present invention relates to a multi-stage vacuum pump comprising: first and second half-shell stator components (102, 104) defining a plurality of pumping chambers (106) to (116) and for assembly together along respective longitudinally extending faces (118), (120); first and second end stator components (122, 124) for assembly at respective longitudinal end faces (126), (128) of the first and second half-shell stator components; gaskets (28) for sealing between the first and second half-shell stator components when assembled together at the longitudinally extending faces; and O-rings (54) for sealing between the first and second end stator components and the first and second half-shell stator components when assembled; wherein annular channels (22) intersect longitudinal recesses (14) and each longitudinal recess comprises a stop (24) fixed relative to the intersection, and the gasket and the longitudinal recess are configured that when the gasket is located in the recess during assembly the gasket is biased against the stop for locating an end portion (34) of the gasket relative to the intersection.
摘要翻译：本发明涉及一种多级真空泵，包括：限定多个泵室（106）至（116）并用于组装的第一和第二半壳式定子部件（102,104）沿着相应的纵向延伸面（118），（120）一起; 第一和第二端部定子部件（122,124），用于组装在第一和第二半壳式定子部件的相应纵向端面（126），（128）处; 当在纵向延伸表面上组装在一起时用于在第一和第二半壳式定子部件之间密封的垫圈（28）和用于在组装时密封第一和第二端部定子部件与第一和第二半壳式定子部件之间的O形环（54）; 其中环形通道（22）与纵向凹部（14）相交，并且每个纵向凹部包括相对于所述交点固定的止动件（24），并且所述垫圈和所述纵向凹部构造成使得当在组装期间垫圈位于凹部中时，偏压在止动件上以相对于交叉点定位垫圈的端部（34）。

10. 发明申请

WO2011007157A2 SCROLL COMPRESSOR 审中-公开
标题翻译：滚动压缩机
公开(公告)号：WO2011007157A2
公开(公告)日：2011-01-20
申请号：PCT/GB2010/051042
申请日：2010-06-23
申请人： EDWARDS LIMITED , STONES, Ian David , HOLBROOK, Alan Ernest Kinnaird
发明人： STONES, Ian David , HOLBROOK, Alan Ernest Kinnaird
IPC分类号： F04C18/02
CPC分类号： F04C18/0215 , F04C18/0276 , F04C18/0284 , F04C23/008
摘要： A scroll compressor comprises two scrolls (40, 46) having respective scroll plates (42, 48) and respective scroll walls (44, 50). The scroll walls intermesh so that on relative orbital movement of the scrolls a volume (52, 54) of gas is trapped between the scrolls and pumped from an inlet (31) to an outlet (33). The axial extent (A) of said trapped volume between said scroll plates is less along a first portion (62) of a flow path (56) between the inlet and the outlet than the axial extent (B) of said trapped volume along a second portion (64) of the flow path, and wherein the first portion is closer to the inlet than the second portion along the flow path.
摘要翻译：涡旋压缩机包括具有各自的涡旋板（42,48）和相应涡旋壁（44,45）的两个涡旋件（40,46）。涡旋壁相互啮合，使得在涡卷的相对轨道移动时，气体的体积（52,54）被捕获在涡旋件之间并从入口（31）泵送到出口（33）。在所述涡旋板之间的所述被捕获体积的轴向延伸度（A）沿着所述入口和出口之间的流动路径（56）的第一部分（62）沿着所述被捕获的体积的轴向范围（B）沿第二所述流路的部分（64），并且其中所述第一部分沿着所述流动路径比所述第二部分更靠近所述入口。

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