-
公开(公告)号：US20160281880A1
公开(公告)日：2016-09-29
申请号：US15036680
申请日：2014-11-14
申请人： NUOVO PIGNONE SRL
摘要： A control valve comprising a cylindrical hollow trim defining an inner bore extending along an axis between a first opening and a second opening, the first opening defining an inlet of the valve, the trim comprising a first outer cylinder extending along the axis and comprising a first plurality of radial through holes defining an outlet, a second cylinder, housed in the first cylinder and coaxial, the second cylinder comprising a second plurality of radial through holes, the holes of the first plurality being smaller and in greater number than the holes of the second plurality, for each hole of one of the first and second cylinders the projection along a radial direction on the other of the first and second cylinders being spaced from each hole of the other of the first and second plurality a plug sized to fit inside the bore and slidably movable along the axis.
摘要翻译： 一种控制阀，包括圆柱形中空装饰件，其限定在第一开口和第二开口之间沿轴线延伸的内孔，所述第一开口限定所述阀的入口，所述装饰件包括沿所述轴线延伸的第一外筒， 多个限定出口的径向通孔，第二气缸，容纳在第一气缸中并且同轴，第二气缸包括第二多个径向通孔，第一多个径向通孔的孔数小于 第二多个，对于第一和第二气缸中的一个的每个孔，第一和第二气缸中的另一个的沿径向方向的突起与第一和第二多个的另一个的每个孔间隔开， 孔和可沿着轴可滑动。
-
公开(公告)号：US20170159665A1
公开(公告)日：2017-06-08
申请号：US15115722
申请日：2015-02-02
申请人： Nuovo Pignone Srl
发明人： Lorenzo BERGAMINI , Marco CIPRIANI
IPC分类号： F04D27/00 , F04D17/12 , F04D13/06 , F04D25/06 , F04D19/02 , F04D3/00 , F04D15/00 , F04D29/18 , F04D29/22 , F04D29/58 , F04D29/06 , F04D29/70 , F04D29/42 , F04D29/52 , F04D1/06
CPC分类号： F04D27/004 , F04D1/06 , F04D3/00 , F04D13/06 , F04D15/0066 , F04D17/12 , F04D17/122 , F04D19/02 , F04D19/024 , F04D19/026 , F04D25/0606 , F04D29/056 , F04D29/06 , F04D29/181 , F04D29/22 , F04D29/42 , F04D29/52 , F04D29/58 , F04D29/70
摘要： A multistage turbomachine is disclosed, comprising a casing with a fluid inlet and a fluid outlet and a plurality of stages arranged in the casing. A flow path extends from the fluid inlet to the fluid outlet through the sequentially arranged stages. Each stage is comprised of a rotating impeller and an electric motor embedded in the casing and arranged for rotating the impeller at a controlled rotary speed. Each electric motor comprises a motor rotor, arranged on the impeller and integrally rotating therewith, and a motor stator stationarily arranged in the casing. Pairs of sequentially arranged impellers are configured for rotation in opposite directions.
-
公开(公告)号：US20170306778A1
公开(公告)日：2017-10-26
申请号：US15518121
申请日：2015-10-02
申请人： Nuovo Pignone Srl
发明人： Lorenzo BERGAMINI
IPC分类号： F01D11/00
CPC分类号： F01D11/003 , F01D11/001 , F16J15/3292
摘要： A seal for a gap between an outer and an inner cylindrical surface, coaxial with a central axis in common and arranged to rotate reciprocally, the seal comprises a plurality of plate elements stacked onto one another to define a ring between the outer and inner cylindrical surfaces, wherein each plate has a concave and a convex side, the convex side of each plate element being adjacent to the concave side of the next plate element.
-
公开(公告)号：US20160265555A1
公开(公告)日：2016-09-15
申请号：US15031983
申请日：2014-10-24
申请人： Nuovo Pignone Srl
CPC分类号： F04D29/624 , F04D1/06 , F04D17/12 , F04D17/122 , F04D29/4206 , F04D29/426 , F04D29/522 , F04D29/528 , F04D29/628 , F04D29/644 , F04D29/648 , F05D2260/36
摘要： A turbo machine comprising a barrel casing having a cylindrical internal surface defining an internal containment volume, a bundle having a cylindrical shape, adapted to be accommodated into the internal containment volume, a cylindrical cover connected to the bundle to close the internal containment volume and hold the bundle inside the barrel casing, a split shear ring adapted to fix the barrel casing with the cylindrical cover wherein the external cylindrical surface of the cylindrical cover and the cylindrical internal surface of the barrel casing are provided with a first circumferential groove and a second circumferential groove adapted to accommodate the shear ring and wherein the first grooves is adapted to completely accommodate the cross section of the split shear ring.
摘要翻译： 一种涡轮机，其包括具有限定内部容纳体积的圆柱形内表面的筒壳体，具有适于容纳在内部容纳体积中的圆柱形形状的束，连接到束的圆柱形盖，以封闭内部容纳体积并保持 筒体内部的捆束，适于将筒体与圆筒盖固定的分割剪切环，其中圆柱形盖的外圆柱表面和筒体的圆柱形内表面设置有第一周向槽和第二周向 凹槽，其适于容纳剪切环，并且其中第一凹槽适于完全容纳分裂剪切环的横截面。
-
公开(公告)号：US20150330391A1
公开(公告)日：2015-11-19
申请号：US14649932
申请日：2013-12-02
申请人： NUOVO PIGNONE SRL
CPC分类号： F04D1/066 , F04D1/10 , F04D29/426 , F04D29/445 , F04D29/628
摘要： A back-to-back centrifugal pump comprising a pump inlet, a pump outlet, a pump shaft, a set of first stages, and a set of second stages in a back-to-back arrangement. Between the two sets of stages an intermediate crossover module is arranged. The first and second sets of stages comprise respective first outer diaphragms and second outer diaphragms. The outer diaphragms and the intermediate crossover module are stacked together and form a pump casing. The intermediate crossover module forms at least one axial transfer channel between the two sets of stages, and a fluid connection between the set of second stages and the pump outlet. The second diaphragms comprise each at least one peripherally arranged through aperture. The through apertures are aligned to form at least one passageway, which fluidly connects the axial transfer channel with a most upstream one of the impellers of the second set of stages.
摘要翻译： 背对背离心泵，其包括泵入口，泵出口，泵轴，一组第一级和一组背对背布置的第二级。 在两组阶段之间布置了中间交叉模块。 第一和第二组级包括相应的第一外隔膜和第二外隔膜。 外隔膜和中间交叉模块堆叠在一起形成泵壳体。 中间交叉模块在两组级之间形成至少一个轴向传递通道，以及该组第二级与泵出口之间的流体连接。 第二隔膜包括每个至少一个周向布置的通孔。 通孔对齐以形成至少一个通道，其将轴向传送通道与第二组级的叶轮的最上游的一个流体连接。
-
-
-
-
搜索结果
5 条记录 (耗时 0.015 秒)
