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公开(公告)号：US11014304B2
公开(公告)日：2021-05-25
申请号：US15961602
申请日：2018-04-24
发明人： Christian Wakelam , Rene du Cauze de Nazelle , Christian Aalburg , Florian Hoefler , Jonathan Ong
IPC分类号： B29C64/371 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B29C64/153 , B29C64/245 , B29C64/25 , B29C64/264 , B28B1/00 , B22F10/00 , B22F10/10
摘要： An additive manufacturing (AM) system includes a housing defining a chamber and a build platform disposed in a lower portion of the chamber. The AM system includes an upper gas inlet disposed in a side-wall and in an upper portion of the chamber and configured to supply an upper gas flow parallel to the build platform. The AM system includes a lower gas inlet in the lower portion of the chamber, wherein the lower gas inlet includes one or more pairs of dividing walls extending from the side-wall toward the build platform and configured to guide the lower gas flow at one or more flow angles with respect to the build platform. The AM system includes at least one gas delivery mechanisms to regulate flow characteristics of the upper and lower gas flows, and includes a gas outlet to discharge the upper and lower gas flows from the chamber.
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公开(公告)号：US10814430B2
公开(公告)日：2020-10-27
申请号：US15948648
申请日：2018-04-09
发明人： Christian Wakelam , Rene du Cauze de Nazelle , Daniel Fischer , Hannes Haderlein , Viktor Engel , Florian Hoefler , Rachel Wyn Levine
IPC分类号： B23K26/342 , B22F3/105 , B33Y30/00 , B23K26/08 , B23K26/70 , B23K26/142 , B23K26/14 , B23K26/144 , B23K26/12 , B29C64/35 , B33Y40/00 , B33Y10/00 , B29C64/371
摘要： A flow control device for an additive manufacturing system is provided. The flow control device includes a gas supply configured to discharge a gas, a first flow modifier configured to modify at least one flow characteristic of a first portion of the gas, and a second flow modifier configured to cooperate with the first flow modifier to modify the at least on flow characteristic of the first portion of the gas. The second flow modifier is further configured to modify at least one flow characteristic of a second portion of the gas, and the first flow modifier and the second flow modifier are configured to cooperate to direct at least a portion of the first portion and the second portion of the gas towards a melt pool in a plurality of particles.
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公开(公告)号：US11298716B2
公开(公告)日：2022-04-12
申请号：US16107709
申请日：2018-08-21
IPC分类号： B05B12/32 , B29C64/153 , B29C64/245 , B29C64/371 , B05B7/08 , B05B12/00 , B05B12/08 , B22F10/20 , B33Y10/00 , B33Y30/00 , B33Y40/00
摘要： An additive manufacturing (AM) system includes a housing defining a chamber, a build platform disposed within the chamber, and an upper gas inlet configured to supply an upper gas flow in a first direction parallel to the build platform. The AM system includes a lower gas inlet disposed in the chamber and configured to supply a lower gas flow in a second direction toward a bottom wall of the chamber, and a flow directing system configured to receive the lower gas flow and redirect the lower gas flow in the first direction parallel to the build platform. The AM system includes one or more gas delivery devices fluidly coupled to the upper and lower gas inlets and configured to regulate one or more flow characteristics of the upper and lower gas flows and a gas outlet configured to discharge the upper and lower gas flows from the chamber.
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公开(公告)号：US20210276262A1
公开(公告)日：2021-09-09
申请号：US17329301
申请日：2021-05-25
发明人： Christian Wakelam , Rene du Cauze de Nazelle , Christian Aalburg , Florian Hoefler , Jonathan Ong
IPC分类号： B29C64/371 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B29C64/153 , B29C64/25 , B29C64/264 , B28B1/00 , B29C64/245 , B22F12/00 , B22F10/00
摘要： An additive manufacturing (AM) system includes a housing defining a chamber and a build platform disposed in a lower portion of the chamber. The AM system includes an upper gas inlet disposed in a side-wall and in an upper portion of the chamber and configured to supply an upper gas flow parallel to the build platform. The AM system includes a lower gas inlet in the lower portion of the chamber, wherein the lower gas inlet includes one or more pairs of dividing walls extending from the side-wall toward the build platform and configured to guide the lower gas flow at one or more flow angles with respect to the build platform. The AM system includes at least one gas delivery mechanisms to regulate flow characteristics of the upper and lower gas flows, and includes a gas outlet to discharge the upper and lower gas flows from the chamber.
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公开(公告)号：US20220168766A1
公开(公告)日：2022-06-02
申请号：US17675186
申请日：2022-02-18
IPC分类号： B05B12/32 , B29C64/153 , B29C64/245 , B29C64/371 , B05B7/08 , B05B12/00 , B05B12/08 , B22F10/20
摘要： An additive manufacturing (AM) system includes a housing defining a chamber, a build platform disposed within the chamber, and an upper gas inlet configured to supply an upper gas flow in a first direction parallel to the build platform. The AM system includes a lower gas inlet disposed in the chamber and configured to supply a lower gas flow in a second direction toward a bottom wall of the chamber, and a flow directing system configured to receive the lower gas flow and redirect the lower gas flow in the first direction parallel to the build platform. The AM system includes one or more gas delivery devices fluidly coupled to the upper and lower gas inlets and configured to regulate one or more flow characteristics of the upper and lower gas flows and a gas outlet configured to discharge the upper and lower gas flows from the chamber.
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公开(公告)号：US20200061655A1
公开(公告)日：2020-02-27
申请号：US16107709
申请日：2018-08-21
IPC分类号： B05B12/32 , B05B12/08 , B22F3/105 , B29C64/153 , B29C64/245 , B29C64/371 , B05B12/00 , B05B7/08
摘要： An additive manufacturing (AM) system includes a housing defining a chamber, a build platform disposed within the chamber, and an upper gas inlet configured to supply an upper gas flow in a first direction parallel to the build platform. The AM system includes a lower gas inlet disposed in the chamber and configured to supply a lower gas flow in a second direction toward a bottom wall of the chamber, and a flow directing system configured to receive the lower gas flow and redirect the lower gas flow in the first direction parallel to the build platform. The AM system includes one or more gas delivery devices fluidly coupled to the upper and lower gas inlets and configured to regulate one or more flow characteristics of the upper and lower gas flows and a gas outlet configured to discharge the upper and lower gas flows from the chamber.
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公开(公告)号：US20160169231A1
公开(公告)日：2016-06-16
申请号：US14729405
申请日：2015-06-03
发明人： Vittorio Michelassi , Siddharth Navinchandra Ashar , Ismail Hakki Sezal , Rene du Cauze de Nazelle , Egidio Marotta , Ravishankar Balasubramanian , Mohamed Osama
IPC分类号： F04D13/06 , F04D29/18 , F04D29/42 , F04D29/52 , H02K9/19 , F04D31/00 , H02K17/16 , H02K1/27 , H02K1/24 , F04D29/22 , F04D29/046
CPC分类号： H02K9/19 , F04D1/06 , F04D13/0673 , F04D13/0693 , F04D13/10 , F04D29/061 , F04D31/00 , H02K1/2786 , H02K7/14 , H02K16/00 , H02K17/16 , H02K19/103 , H02K21/22
摘要： An electric pump powered by an electric motor having a stator disposed within a hollow rotor is provided. Impellers on the rotor outer surface extend into a fluid flow path defined by the pump. One or more torque-producing rotor sections are driven by a plurality of independently controllable stator sections disposed within the rotor cavity. The relative positions of the rotor and stator are maintained by a plurality of bearings configured to allow rotation of the rotor and defining a bearing span. The pump is configured such that the stator and rotor share the same bearing span. Such an arrangement reduces motor windage losses relative to conventional motors in which the rotor is disposed within the stator, owing to a reduction in the diameter of the air gap between the stator and the rotor. In addition, the peripheral speed of the pump is increased owing to an increase in the rotor diameter.
摘要翻译： 提供一种由具有设置在中空转子内的定子的电动机驱动的电动泵。 转子外表面上的叶轮延伸到由泵限定的流体流动路径中。 一个或多个扭矩产生转子部分由设置在转子腔内的多个可独立控制的定子部分驱动。 转子和定子的相对位置由构造成允许转子旋转并限定轴承跨度的多个轴承保持。 泵构造成使得定子和转子共享相同的轴承跨度。 由于定子和转子之间的空气间隙的直径减小，这种布置相对于其中转子设置在定子内的常规电动机减少了电机风阻损失。 此外，由于转子直径的增加，泵的圆周速度增加。
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公开(公告)号：US20220072574A1
公开(公告)日：2022-03-10
申请号：US17528734
申请日：2021-11-17
发明人： Christian Thomas Wakelam , Rene du Cauze de Nazelle , Mohammed Mounir Shalaby , Kishore Ramakrishnan , Jens Stammberger
IPC分类号： B05B12/08 , B29C64/153 , B29C64/245 , B29C64/371 , B05B7/08 , B05B12/00 , B22F10/20
摘要： An additive manufacturing (AM) system includes a housing defining a chamber, a build platform disposed in the chamber at a first elevation, and a lower gas inlet disposed at a second elevation and configured to supply a lower gas flow. The AM system includes a contoured surface extending between the lower gas inlet and the build platform to direct the lower gas flow from the second elevation at the lower gas inlet to the first elevation at the build platform, where the contoured surface discharges the lower gas flow in a direction substantially parallel to the build platform. The AM system also includes one or more gas delivery devices coupled to the lower gas inlet to regulate one or more flow characteristics of the lower gas flow, and a gas outlet configured to discharge the lower gas flow.
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公开(公告)号：US11203027B2
公开(公告)日：2021-12-21
申请号：US16107696
申请日：2018-08-21
发明人： Christian Thomas Wakelam , Rene du Cauze de Nazelle , Mohammed Mounir Shalaby , Kishore Ramakrishnan , Jens Stammberger
IPC分类号： B05B12/08 , B29C64/153 , B29C64/245 , B29C64/371 , B05B7/08 , B05B12/00 , B22F10/20 , B33Y10/00 , B33Y30/00 , B33Y40/00
摘要： An additive manufacturing (AM) system includes a housing defining a chamber, a build platform disposed in the chamber at a first elevation, and a lower gas inlet disposed at a second elevation and configured to supply a lower gas flow. The AM system includes a contoured surface extending between the lower gas inlet and the build platform to direct the lower gas flow from the second elevation at the lower gas inlet to the first elevation at the build platform, where the contoured surface discharges the lower gas flow in a direction substantially parallel to the build platform. The AM system also includes one or more gas delivery devices coupled to the lower gas inlet to regulate one or more flow characteristics of the lower gas flow, and a gas outlet configured to discharge the lower gas flow.
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公开(公告)号：US20200061653A1
公开(公告)日：2020-02-27
申请号：US16107696
申请日：2018-08-21
发明人： Christian Thomas Wakelam , Rene du Cauze de Nazelle , Mohammed Mounir Shalaby , Kishore Ramakrishnan , Jens Stammberger
IPC分类号： B05B12/08 , B22F3/105 , B29C64/153 , B29C64/245 , B29C64/371 , B05B12/00 , B05B7/08
摘要： An additive manufacturing (AM) system includes a housing defining a chamber, a build platform disposed in the chamber at a first elevation, and a lower gas inlet disposed at a second elevation and configured to supply a lower gas flow. The AM system includes a contoured surface extending between the lower gas inlet and the build platform to direct the lower gas flow from the second elevation at the lower gas inlet to the first elevation at the build platform, where the contoured surface discharges the lower gas flow in a direction substantially parallel to the build platform. The AM system also includes one or more gas delivery devices coupled to the lower gas inlet to regulate one or more flow characteristics of the lower gas flow, and a gas outlet configured to discharge the lower gas flow.
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