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公开(公告)号：US10955054B2
公开(公告)日：2021-03-23
申请号：US16307038
申请日：2017-04-18
发明人： Peter Droscher , Andreas Pehl , Dieter Pfeil , Berthold Schulten , Glenn Schmidt , Eric Vanhie
摘要： A mechanical seal arrangement includes a first mechanical seal with a rotating slide ring and a stationary slide ring, which define a sealing gap in between them. The mechanical seal arrangement includes a first sealing space that is filled with a sealing liquid. The first mechanical seal seals off the sealing space against a surrounding area, a first piston arrangement with a piston element and flexible wall areas that define a first piston interior space, wherein the first piston interior space is in fluid connection with the first sealing space. A piston outer surface of the piston element is in fluid connection with the surrounding area, and a first pre-stressing appliance that exerts a first preload force (F1) on the piston element of the first piston arrangement.
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公开(公告)号：US11754183B2
公开(公告)日：2023-09-12
申请号：US17437630
申请日：2020-02-25
发明人： Dieter Pfeil , Jurgen Binder
IPC分类号： F16J15/3204 , B63H23/32 , F16J15/34 , F16J15/40
CPC分类号： F16J15/3204 , B63H23/321 , F16J15/3484 , F16J15/406 , B63H2023/327
摘要： The invention relates to a marine meachanical seal arrangement comprising a first mechanical seal (2) comprising a first rotating slide ring (21) and a second stationary slide ring (22) defining a first sealing gap (23) between their two sliding surfaces (21a, 22a), a second meachanical seal (3) comprising a second rotating slide ring (31) and a second stationary slide ring (32), which define a second sealing gap (33) between their sliding surfaces (31a, 32a), a barrier circuit (10) comprising a barrier fluid cavity (8) which is arranged between the first mechanical seal (2) and the second mechanical seal (3) and is filled with a barrier fluid, the barrier fluid cavity (8) being divided into a first sub-cavity (81) and a second sub-cavity (82), the first subcavity (81) and the second subcavity (82) being separated by a flexible lip seal (7) wherein the second sub-cavity (82) is arranged at the second mechanical seal (3), and wherein the lip seal (7) is arranged such that a flow of barrier fluid from the first subcavity (81) into the second subcavity (82) is allowed and a flow of barrier fluid from the second subcavity to the first subcavity is prevented. (FIG. 2)
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公开(公告)号：US20220186837A1
公开(公告)日：2022-06-16
申请号：US17437630
申请日：2020-02-25
发明人： Dieter Pfeil , Jurgen Binder
IPC分类号： F16J15/3204 , B63H23/32 , F16J15/34 , F16J15/40
摘要： The invention relates to a marine meachanical seal arrangement comprising a first mechanical seal (2) comprising a first rotating slide ring (21) and a second stationary slide ring (22) defining a first sealing gap (23) between their two sliding surfaces (21a, 22a), a second meachanical seal (3) comprising a second rotating slide ring (31) and a second stationary slide ring (32), which define a second sealing gap (33) between their sliding surfaces (31a, 32a), a barrier circuit (10) comprising a barrier fluid cavity (8) which is arranged between the first mechanical seal (2) and the second mechanical seal (3) and is filled with a barrier fluid, the barrier fluid cavity (8) being divided into a first sub-cavity (81) and a second sub-cavity (82), the first subcavity (81) and the second subcavity (82) being separated by a flexible lip seal (7) wherein the second sub-cavity (82) is arranged at the second mechanical seal (3), and wherein the lip seal (7) is arranged such that a flow of barrier fluid from the first subcavity (81) into the second subcavity (82) is allowed and a flow of barrier fluid from the second subcavity to the first subcavity is prevented. (FIG. 2)
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公开(公告)号：US20190219169A1
公开(公告)日：2019-07-18
申请号：US16307038
申请日：2017-04-18
发明人： Peter Droscher , Andreas Pehl , Dieter Pfeil , Berthold Schulten , Glenn Schmidt , Eric Vanhie
CPC分类号： F16J15/006 , E21B43/128 , F16J15/3448 , F16J15/40
摘要： The invention relates to a mechanical seal arrangement, comprising: a first mechanical seal (10) with a rotating slide ring (11) and a stationary slide ring (12), which define a sealing gap (13) in between them, a first sealing space (14) that is filled with a sealing liquid, wherein the first mechanical seal (10) seals off the sealing space (14) against a surrounding area (6), a first piston arrangement (15) with a piston element (16) and flexible wall areas that define a first piston interior space (160), wherein the first piston interior space (160) is in fluid connection with the first sealing space (14), wherein a piston outer surface of the piston element (16) is in fluid connection with the surrounding area (6), and a first pre-stressing appliance (19) that exerts a first preload force (F1) on the piston element (16) of the first piston arrangement (15).
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公开(公告)号：US20150125324A1
公开(公告)日：2015-05-07
申请号：US14363026
申请日：2012-10-18
发明人： Timothy D. Sanford , Garrett Landry , Stephen Mccurdy , Ron Mcculloch , Glenn Schmidt , Michael Sattler , Norbert Gentz , Dieter Pfeil
CPC分类号： F04D13/026 , F01D25/22 , F04D23/008 , F04D25/026 , F04D29/526
摘要： The present invention concerns a rotary compressor for compressing a gaseous medium, comprising an impeller (2), a drive unit (3) and a magnetic coupling (4) comprising a rotating inner rotor (41), a rotating outer rotor (42) and a can (43), wherein the inner rotor (41) is connected to the impeller (2), wherein the impeller (2) comprises a continuous solid portion (25), wherein a first row (21) and a second row (22) of blades (23) are provided at the outer circumference of the solid portion (25) of the impeller, the first and second row of blades being separated by a circumferential middle wall (20), and wherein the blades (23) of the first row (21) are offset in circumferential direction relative to the blades (23) of the second row (22).
摘要翻译： 本发明涉及一种用于压缩气体介质的旋转式压缩机，其包括叶轮（2），驱动单元（3）和包括旋转内转子（41），旋转外转子（42）和 一个罐（43），其中内转子（41）连接到叶轮（2），其中叶轮（2）包括连续的实心部分（25），其中第一排（21）和第二排 ）叶片（23）设置在叶轮的实心部分（25）的外圆周上，第一和第二排叶片由周向中间壁（20）分开，并且其中叶片 第一排（21）相对于第二排（22）的叶片（23）沿圆周方向偏移。
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