-
公开(公告)号：US20220099138A1
公开(公告)日：2022-03-31
申请号：US17429896
申请日：2020-02-19
发明人： Hiroshi SUZUKI , Tadatsugu IMURA , Iwa OU , Yuichiro TOKUNAGA
摘要： A pair of sliding components are disposed at a relatively rotating position at the time of running a rotary machine and formed in an annular shape in which a sealed liquid is present on one side of an inner radial side and an outer radial side and a gas is present on the remaining side thereof. A sliding surface of a sliding component is provided with a dynamic pressure generation groove which communicates with the side of a gas in a radial direction and which is configured to generate a dynamic pressure between the sliding surfaces by the gas at the time of running the rotary machine. A sliding surface of a sliding component is provided with a groove which extends in a circumferential direction.
-
公开(公告)号：US11280154B2
公开(公告)日：2022-03-22
申请号：US16496980
申请日：2018-12-13
发明人： Anthony Phan , Jack Gamill Clemens
IPC分类号： E21B33/12 , E21B33/128 , E21B33/134 , F16J15/34
摘要： A sealing assembly for use downhole may include a plug having a first end and a second end opposite the first end. The plug may have an expandable sealing member positioned between the first end and the second end of the plug. The expandable sealing member having a run-in-hole diameter and an expanded diameter that is greater than the run-in-hole diameter. A support device may extending at least partially between a first end of the plug and the expandable sealing member. The support device may include a recess. An elastomeric material may be positioned at least partially within the recess of the support device. A cover may be positioned at least partially over the support device for reducing extrusion of the elastomeric material from within the recess of the support device in the expanded diameter.
-
公开(公告)号：US20220072570A1
公开(公告)日：2022-03-10
申请号：US17530707
申请日：2021-11-19
申请人： Dürr Systems AG
发明人： Hans-Georg Fritz , Benjamin Wöhr , Marcus Kleiner , Mortiz Bubek , Timo Beyl , Frank Herre , Steffen Sotzny , Daniel Tandler , Tobias Berndt
摘要： The disclosure concerns an applicator (e.g. print head) for applying a coating agent (e.g. paint) to a component (e.g. motor vehicle body component), having a nozzle chamber with a plurality of nozzles for dispensing the coating agent in the form of continuous jets or droplets, the coating agent flowing during operation through the nozzle chamber to the nozzles so that the nozzle chamber is filled with the coating agent during operation. The print head further comprises a plurality of slidable valve needles associated with the individual nozzles and selectively opening or closing the respective nozzle depending on the position of the valve needles. Furthermore, the print head according to the disclosure contains an actuator chamber for receiving actuators for displacing the valve needles. In addition, the applicator according to the disclosure has a sealing element which fluidically separates the actuator chamber from the nozzle chamber in order to avoid contamination of the actuator chamber with the coating agent in the nozzle chamber. The disclosure provides that the sealing element is designed such that the individual valve needles can be displaced independently of one another without a displacement of one of the valve needles impairing the opening and closing of the nozzles at the adjacent valve needle.
-
公开(公告)号：US11255439B2
公开(公告)日：2022-02-22
申请号：US16946980
申请日：2020-07-14
摘要： An axial shaft seal ring has a holding portion and a sealing portion, which are connected to one another via an elastically deformable sealing membrane. The sealing membrane has a plurality of spatial structure areas R in the circumferential direction of the shaft seal ring, which serve as a circumferential reserve of the sealing membrane. As a result of a centrifugal force FR accompanying a rotational movement of the shaft seal ring around the central axis thereof and acting on the sealing membrane, an expansion of the sealing membrane in a radial direction is effected at least in the spatial structure areas, in such a manner that the sealing portion is acted upon by the sealing membrane with an axially directed pull force FZ, which is directed opposite to the pressing force FA.
-
公开(公告)号：US11255208B2
公开(公告)日：2022-02-22
申请号：US16413197
申请日：2019-05-15
发明人： Thomas E. Clark , William M. Barker
摘要： A blade outer air seal assembly includes a support structure. A blade outer air seal has a plurality of segments that extends circumferentially about an axis and is mounted in the support structure. At least two of the segments have a base portion that extends from a first circumferential side to a second circumferential side. A first protrusion extends from the first circumferential side and has a first radially extending slot. A second protrusion extends from a second circumferential side and has a second radially extending slot. A feather seal is arranged in the first radially extending slot and the second radially extending slot between at least two segments.
-
公开(公告)号：US11236636B2
公开(公告)日：2022-02-01
申请号：US16173500
申请日：2018-10-29
发明人： Armando Amador , Todd A. Davis
摘要： A seal system has: a first member; a seal carried by the first member and having a seal face; and a second member rotatable relative to the first member about an axis. The second member has: a seat, the seat having a seat face in sliding sealing engagement with the seal face; and a circumferential array of passageway legs. The second member further has an annular channel axially spaced from the seat face, the passageway legs connected to the annular channel.
-
公开(公告)号：US20220018354A1
公开(公告)日：2022-01-20
申请号：US17365404
申请日：2021-07-01
IPC分类号： F04D29/10 , F16J15/34 , F16J15/447 , F04D25/06
摘要： A seal structure of a drive device is provided which includes a case in which a motor chamber for accommodating an electric motor and a gear chamber for accommodating a gear mechanism are located adjacent to each other, a partition that separates the motor chamber and the gear chamber, a bearing that supports a rotating shaft, a seal part that seals between the rotating shaft and the partition, a lubricating oil that lubricates the gear mechanism, and a coolant that cools the electric motor, and also includes a first bearing on the motor chamber side, a second bearing on the gear chamber side, a first seal part on the motor chamber side, a second seal part on the gear chamber side, and at least the second seal part of the first seal part and the second seal part is provided between the first bearing and the second bearing.
-
公开(公告)号：US20220010835A1
公开(公告)日：2022-01-13
申请号：US17296466
申请日：2019-11-22
发明人： Hiroki INOUE , Yuta NEGISHI , Yuki MAETANI , Sayaka MIYAZAKI
摘要： A sliding component includes a dynamic pressure generation groove configured for generating dynamic pressure on a sliding surface, which groove includes an introduction port formed in one end side of the groove in a circumferential direction and which is open to a sealing target fluid H side, a throttle portion communicating with the introduction port and having a narrowed flow path, and a lead-out port formed on the other end side of the groove, which communicates with the throttle portion and which is open to the sealing target fluid side.
-
公开(公告)号：US11207698B2
公开(公告)日：2021-12-28
申请号：US16649226
申请日：2018-03-07
申请人： Dürr Systems AG
发明人： Hans-Georg Fritz , Benjamin Wöhr , Marcus Kleiner , Mortiz Bubek , Timo Beyl , Frank Herre , Steffen Sotzny , Daniel Tandler , Tobias Berndt
摘要： The disclosure concerns an applicator (e.g. print head) for applying a coating agent (e.g. paint) to a component (e.g. motor vehicle body component), having a nozzle chamber with a plurality of nozzles for dispensing the coating agent in the form of continuous jets or droplets, the coating agent flowing during operation through the nozzle chamber to the nozzles so that the nozzle chamber is filled with the coating agent during operation. The print head further comprises a plurality of slidable valve needles associated with the individual nozzles and selectively opening or closing the respective nozzle depending on the position of the valve needles. Furthermore, the print head according to the disclosure contains an actuator chamber for receiving actuators for displacing the valve needles. In addition, the applicator according to the disclosure has a sealing element which fluidically separates the actuator chamber from the nozzle chamber in order to avoid contamination of the actuator chamber with the coating agent in the nozzle chamber. The disclosure provides that the sealing element is designed such that the individual valve needles can be displaced independently of one another without a displacement of one of the valve needles impairing the opening and closing of the nozzles at the adjacent valve needle.
-
公开(公告)号：US20210388903A1
公开(公告)日：2021-12-16
申请号：US16898967
申请日：2020-06-11
发明人： Brian Kaldunski
IPC分类号： F16J15/34
摘要： A rotary shaft seal includes a shaft rotatable about an axis, the shaft penetrating a containment wall defining interior and exterior shaft portions. A first face seal surface is provided along an exterior of the containment wall. A rotating seal body is fixed with the shaft and has an inner portion sealed against the shaft. A face seal surface of the rotating seal body faces the first face seal surface. The rotating seal body is slidable between at least two positions along the shaft, including a sealing position in which the first and second face seal surfaces are axially pressed together, and a cleaning position in which the first and second face seal surfaces are separated. The cleaning position provides the rotary shaft seal with a configuration that allows complete penetration of the first and second face seal surfaces by a cleaning solution, without disassembly of the rotary shaft seal.
-
-
-
-
-
-
-
-
-
搜索结果
4027 条记录 (耗时 0.034 秒)
