-
公开(公告)号：US20200018400A1
公开(公告)日：2020-01-16
申请号：US16483666
申请日：2018-02-21
发明人： Yuichiro TOKUNAGA , Hideyuki INOUE , Wataru KIMURA , Tetsuya IGUCHI , Hidetoshi KASAHARA , Jun HIROMATSU , Yasuhiro KUROKI , Ryu KIKUCHI
摘要： In exemplary embodiment, a seal device 10 that seals between a housing 11 and a rotation shaft 20 passing through the housing 11 includes a floating ring 15 arranged with a gap h with respect to the rotation shaft 20, wherein the floating ring 15 includes an aligning means 18 that contactlessly aligns a position of the floating ring 15. In the seal device, the automatic aligning operation of the seal ring is maintained even upon running for a long time, a clearance between the rotation shaft and the seal ring can be properly held, and the sealing operation by the seal ring and the vibration damping function can be exerted.
-
公开(公告)号：US20180135699A1
公开(公告)日：2018-05-17
申请号：US15573107
申请日：2016-05-13
发明人： Yuichiro TOKUNAGA , Hideyuki INOUE , Wataru KIMURA , Tetsuya IGUCHI , Keiichi CHIBA , Masatoshi ITADANI , Hikaru KATORI
IPC分类号： F16C33/80
CPC分类号： F16C33/80 , F16J15/3416 , F16J15/348
摘要： In an embodiment, a sliding face of at least one sliding part of the pair of sliding parts is provided, along its entire circumference, with a trap groove 10 for trapping leakage fluid, located on a leakage side and spaced from the leakage side by a land. A dust entry reduction means 12 for reducing entry of dust from the leakage side while allowing passage of fluid is formed between lands of the pair of sliding parts on the leakage side of the trap groove 10. At the sliding faces of the pair of sliding parts sliding relatively, entry of dust from the leakage side as well as liquid leakage to the leakage side are suppressed.
-
公开(公告)号：US20210054936A1
公开(公告)日：2021-02-25
申请号：US16497436
申请日：2018-03-27
发明人： Yuichiro TOKUNAGA , Hideyuki INOUE , Wataru KIMURA , Tetsuya IGUCHI , Hidetoshi KASAHARA , Jun HIROMATSU , Yasuhiro KUROKI , Ryu KIKUCHI
IPC分类号： F16J15/44
摘要： In an exemplary embodiment, a seal device (10) that seals between a housing (11) and a rotation shaft (20) passing through the housing (11) includes: a floating ring (15) arranged with a gap h with respect to the rotation shaft (20), a seal portion (14) formed by bringing one end face of the floating ring (15) into contact with the housing (11), and a space portion j provided between the floating ring (15) and the housing (11), and the floating ring (15) includes bias means that contactlessly biases the floating ring (15) to the seal portion via the space portion j. The seal device in which the floating ring follows movement of the rotation shaft is capable of exerting a sealing operation so that vibration of the rotation shaft can be reduced.
-
公开(公告)号：US20210054935A1
公开(公告)日：2021-02-25
申请号：US16475641
申请日：2018-01-15
发明人： Wataru KIMURA , Yuichiro TOKUNAGA , Yuta NEGISHI , Takeshi HOSOE , Hideyuki INOUE , Tetsuya IGUCHI
摘要： In an exemplary embodiment, a sliding component includes a pair of sliding parts sliding relatively to each other. One sliding part is a stationary-side seal ring 7, and the other sliding part is a rotating-side seal ring 4, wherein the seal rings have sliding faces S formed radially for sealing a liquid or a misty fluid as a sealed fluid against leakage. At least one of the sliding faces S is provided with: spiral grooves 11 which have upstream ends 11a connected to a leakage side, and downstream ends 11b not connected to a circumferential edge on a sealed-fluid side, and are disposed at an angle from upstream to downstream; and discharge grooves 10 disposed at an angle such that their upstream ends 10a are located on the leakage side and their downstream ends 10b are located on the sealed-fluid side.
-
公开(公告)号：US20200011425A1
公开(公告)日：2020-01-09
申请号：US16483682
申请日：2018-02-21
发明人： Yuichiro TOKUNAGA , Hideyuki INOUE , Wataru KIMURA , Tetsuya IGUCHI , Hidetoshi KASAHARA , Jun HIROMATSU , Yasuhiro KUROKI , Ryu KIKUCHI
IPC分类号： F16J15/34
摘要： In an exemplary embodiment, a seal device 10 for sealing between a housing 11 and a rotating shaft 20 which penetrates through the housing 11 includes a floating ring 15 arranged on the rotating shaft 20 with a gap h therebetween, and is provided with a spiral foil 14 arranged between the floating ring 15 and the housing 11. In the seal device, the floating ring exhibits a sealing action by following the movement of the rotating shaft and can damp vibration of the rotating shaft.
-
公开(公告)号：US20200011342A1
公开(公告)日：2020-01-09
申请号：US16483655
申请日：2018-02-21
发明人： Yuichiro TOKUNAGA , Hideyuki INOUE , Wataru KIMURA , Tetsuya IGUCHI , Hidetoshi KASAHARA , Jun HIROMATSU , Yasuhiro KUROKI , Ryu KIKUCHI
摘要： In an exemplary embodiment, a seal device 10 that seals between a housing 11 and a rotation shaft 20 passing through the housing 11 includes a floating ring 15 arranged with a gap h with respect to the rotation shaft 20, wherein the floating ring 15 includes at least one supporting means 18 that supports in the circumferential direction. In the seal device, the floating ring follows movement of the rotation shaft even upon running for a long time, a clearance between the rotation shaft and the seal ring can be properly held, and the sealing operation by the floating ring and the vibration damping function can be exerted, and the seal device is easily assembled.
-
公开(公告)号：US20180172162A1
公开(公告)日：2018-06-21
申请号：US15736201
申请日：2016-05-13
发明人： Yuichiro TOKUNAGA , Hideyuki INOUE , Wataru KIMURA , Tetsuya IGUCHI , Takeshi HOSOE , Hidetoshi KASAHARA , Takafumi OTA , Keiichi CHIBA , Masatoshi ITADANI , Hikaru KATORI
摘要： In an embodiment, in a slide component, dynamic pressure generation grooves 10 are provided on a sealing face of at least one of a pair of slide parts 4, 7 so as to be isolated with no communication from the sealed fluid side and the leakage side by land portions R of both the sealing faces, and a plurality of independently-formed minute recessed sections 11 is provided at positions on the sealing face IS between the dynamic pressure generation grooves 10 and the leakage side, the positions being separated in the radial direction from the dynamic pressure generation grooves. The slide component can make the sealing faces fluid-lubricant and low frictional and prevent leakage of a sealed fluid and incoming of dust to the sealing faces at the time of normal operation.
-
公开(公告)号：US20180128378A1
公开(公告)日：2018-05-10
申请号：US15573118
申请日：2016-05-13
发明人： Yuichiro TOKUNAGA , Hideyuki INOUE , Wataru KIMURA , Tetsuya IGUCHI , Keiichi CHIBA , Masatoshi ITADANI , Hikaru KATORI
IPC分类号： F16J15/34
CPC分类号： F16J15/342 , F02B39/00 , F16J15/3412 , F16J15/40
摘要： In an embodiment, a sliding component includes a pair of sliding parts (a stationary-side seal ring 7 and a rotating-side seal ring 4) that relatively slide on each other and each have a sliding face S formed radially for sealing sealed fluid from leaking. The sliding face S of at least one sliding part is provided with dynamic pressure generation grooves 10 spaced in a non-communicating manner from the sealed-fluid side and the leakage side by lands R of both sliding faces, and is provided with fluid introduction holes 11 between leakage-side ends 10a of the grooves 10 and the leakage side, for communicating the grooves 10 and the leakage side. Each fluid introduction holes 11 is configured such that a dynamic-pressure-generation-groove-side opening 11a open to a corresponding one of the grooves 10 is axially displaced from a leakage-side opening 11b open to the leakage side.
-
公开(公告)号：US20200063873A1
公开(公告)日：2020-02-27
申请号：US16488107
申请日：2018-02-16
发明人： Yuichiro TOKUNAGA , Hideyuki INOUE , Wataru KIMURA , Tetsuya IGUCHI , Hidetoshi KASAHARA , Jun HIROMATSU , Yasuhiro KUROKI , Ryu KIKUCHI
IPC分类号： F16J15/44
摘要： In an exemplary embodiment, a sealing device includes a floating ring 5 in a space 4 between the outer circumference of a rotating shaft 3 and the inner circumference of a housing 2, and a permeable damping member 10 provided around an outer peripheral portion of the floating ring 5. The sealing device can impart a radial restoring force against the eccentricity of the rotating shaft to restore it to its axis position, and a tangential damping force to reduce the whirling of the rotating shaft.
-
公开(公告)号：US20200063871A1
公开(公告)日：2020-02-27
申请号：US16488097
申请日：2018-02-16
发明人： Yuichiro TOKUNAGA , Hideyuki INOUE , Wataru KIMURA , Tetsuya IGUCHI , Hidetoshi KASAHARA , Jun HIROMATSU , Yasuhiro KUROKI , Ryu KIKUCHI
摘要： In an exemplary embodiment, a sealing device includes a floating ring 5 in a space 4 between the outer circumference of a rotating shaft 3 and the inner circumference of a housing 2, and a multi-layered cylindrical body 10 including a plurality of elastically deformable cylindrical thin plates 11 layered on top of each other provided between an outer peripheral surface of the floating ring 5 and an inner peripheral surface of the housing. The sealing device can impart a radial restoring force against the eccentricity of the rotating shaft to restore it to its center position, and a tangential damping force to reduce the whirling of the rotating shaft.
-
-
-
-
-
-
-
-
-
搜索结果
16 条记录 (耗时 0.015 秒)
