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公开(公告)号:EP3617565A1
公开(公告)日:2020-03-04
申请号:EP18790597.1
申请日:2018-04-17
IPC分类号: F16J15/3288 , C09K3/10 , F16J15/10
摘要: A seal member (1) having a seal surface capable of exhibiting excellent sealing properties is any one seal member (1) selected from a gasket, a mechanical seal, a segment seal, a brush seal, a squeeze packing, a lip packing, and a seal ring, in which the seal member has a seal surface (1a) on which a polymer brush layer (12) is provided.
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公开(公告)号:EP4145024A1
公开(公告)日:2023-03-08
申请号:EP21779166.4
申请日:2021-03-26
IPC分类号: F16J15/26
摘要: Provided is a seal structure that can achieve the effects of excellently improving the sealing performance and providing low frictional properties for a gap between a shaft member and a bush.
The seal structure includes a shaft member (13), a bush (11) having a shaft hole (11c) for passing the shaft member (13), a pressure-receiving member (16) having a facing surface (16a) facing an end surface (11b) of the bush (11) on one side (i.e., a lower side (b)) in the direction of the axis x, and an elastic member (14) that presses the bush (11) against the pressure-receiving member (16) from another side (i.e., an upper side (a)) in the direction of the axis x, in which a first coating layer (12A) is formed between an outer peripheral surface of the shaft member (13) and an inner peripheral surface (11d) of the shaft hole (11c) of the bush (11), and a second coating layer (12B) is formed between the end surface (11b) of the bush (11) on one side (i.e., the lower side (b)) in the direction of the axis x and the facing surface (16a) of the pressure-receiving member (16).-
公开(公告)号:EP3364079B1
公开(公告)日:2020-09-02
申请号:EP16855374.1
申请日:2016-10-11
申请人: NOK Corporation
发明人: HOSONUMA Norimasa , XU Fangman , NAKAYAMA Kenichi
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公开(公告)号:EP2966321A1
公开(公告)日:2016-01-13
申请号:EP14759868.4
申请日:2014-02-28
申请人: NOK Corporation
CPC分类号: F02M35/1216 , F02D9/104 , F02M35/10006 , F02M35/1211
摘要: Provided is an intake noise reduction device that can suppress an occurrence of noise in an intake pipe. An intake noise reduction device (100) disposed on a downstream side of a throttle valve in an intake pipe and including a flow-guiding net (110) that guides an air flow, wherein the flow-guiding net includes a mesh that is configured to be fine in a vicinity of a center of a flow passage in the intake pipe and to become coarser with distance from the vicinity of the center. For example, the mesh flow-guiding net (110) is formed of a plurality of radial portions (111) extending radially outward from the vicinity of the center of the flow passage in the intake pipe and a plurality of concentric portions (112) provided concentrically from the vicinity of the center.
摘要翻译: 本发明提供一种能够抑制吸气管内产生噪音的吸气音降低装置。 1。一种吸气音降低装置,其配置在进气管内的节气门的下游侧,具有引导气流的导流网,其特征在于,所述导流网包括网状物, 在进气管内的流路的中心附近变得微细,并且随着距中心附近的距离变得更粗糙。 例如,网状导流网(110)由多个径向部分(111)形成,多个径向部分(111)从进气管中流动通道的中心附近径向向外延伸,并且多个同心部分(112) 从中心附近同心。
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公开(公告)号:EP4283405A1
公开(公告)日:2023-11-29
申请号:EP21921241.2
申请日:2021-12-03
申请人: NOK Corporation
发明人: OURA Kosuke , HOSONUMA Norimasa , IKEDA Atsushi , AKAI Yu , FUKUOKA Satoshi , SASAKI Kenji
IPC分类号: G03G15/08
摘要: A developing roll for use in an image-forming apparatus that uses electrophotography includes a cylindrical core made of metal; an annular elastic layer made of rubber and arranged around the core; and an annular surface layer arranged around the elastic layer. The surface layer includes a central portion and end portions, the central portion being located at the center of the developing roll in the longitudinal direction, the end portions being located at opposite end portions of the developing roll in the longitudinal direction. A coefficient of kinetic friction of the outer peripheral surface of each end portion of the surface layer is less than or equal to 0.1, and a ten-point average roughness R z of the outer peripheral surface of each end portion of the surface layer is less than or equal to 1.8 µm.
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公开(公告)号:EP3273115B1
公开(公告)日:2019-11-06
申请号:EP16764836.9
申请日:2016-03-10
申请人: NOK Corporation
发明人: YOSHIDA Yusuke , XU Fangman , SUZUKI Nozomu , HOSONUMA Norimasa , HONDA Shigenobu , YOSHIMURA Kenichi , SAKAI Yohei , TOMA Shota
IPC分类号: F16J15/18 , F16J15/16 , F16J15/3244 , F16J15/44
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公开(公告)号:EP3364079A1
公开(公告)日:2018-08-22
申请号:EP16855374.1
申请日:2016-10-11
申请人: NOK Corporation
发明人: HOSONUMA Norimasa , XU Fangman , NAKAYAMA Kenichi
IPC分类号: F16J15/18
摘要: The present invention provides a seal ring that can exhibit a sealing function even when fluid pressure is low. A first elastic body sealing portion 200X is provided between a first front end surface 111Xa on a circumferential direction front end of a first fitting projection 111X and a first opposing surface 112Ya provided on a second fitting recess 112Y so as to oppose the first front end surface 111Xa, whereby the first elastic body sealing portion 200X presses the first front end surface 111Xa and the first opposing surface 112Ya in directions for forcing the first front end surface 111Xa and the first opposing surface 112Ya away from each other in a circumferential direction, and a second elastic body sealing portion 200Y is provided between a second front end surface 111Ya on a circumferential direction front end of a second fitting projection 111Y and a second opposing surface 112Xa provided on a first fitting recess 112X so as to oppose the second front end surface 111Ya, whereby the second elastic body sealing portion 200Y presses the second front end surface 111Ya and the second opposing surface 112Xa in directions for forcing the second front end surface 111Ya and the second opposing surface 112Xa away from each other in the circumferential direction.
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公开(公告)号:EP3273116A1
公开(公告)日:2018-01-24
申请号:EP16764873.2
申请日:2016-03-11
申请人: NOK Corporation
发明人: HOSONUMA Norimasa , SUZUKI Nozomu
IPC分类号: F16J15/18
CPC分类号: F16J15/164 , F16J15/3272 , F16J15/3464 , F16J15/441
摘要: Provided is a seal ring capable of preventing an increase in a rotational torque even if a sliding surface wears out as the sliding surface is used. A seal ring (100) is attached to an annular groove (210) provided on an outer periphery of a shaft (200), and slides on a lateral wall surface (211) of the annular groove (210) on a lower pressure side. The seal ring (100) includes: a dynamic pressure generation groove (120) that generates dynamic pressure with sealed fluid introduced thereinto, the dynamic pressure generation groove (120) being provided in a sliding region X of a lateral surface (111) thereof on the lower pressure side in which the lateral surface (111) slides on the lateral wall surface (211); and a introduction hole (130) that has an opening (131) at a position away from the lateral surface (111) of an inner peripheral surface (112) of the seal ring (100) by a distance Y, communicates with the dynamic pressure generation groove (120), and introduces the sealed fluid into the dynamic pressure generation groove (120).
摘要翻译: 本发明提供一种即使在使用滑动面时滑动面磨损的情况下也能够防止旋转扭矩增大的密封环。 密封圈(100)安装在设置在轴(200)的外周的环状槽(210)上,并且在环状槽(210)的低压侧的侧壁面(211)上滑动。 所述密封环(100)包括:动压产生槽(120),所述动压产生槽(120)在被引入密封流体的情况下产生动压,所述动压产生槽(120)设置在其侧表面(111)的滑动区域X中 侧面(111)在侧壁面(211)上滑动的低压侧; 和在密封环(100)的内周面(112)的侧面(111)远离距离Y的位置具有开口(131)的导入孔(130),其与动压 (120),并将密封后的流体导入动压产生槽(120)。
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公开(公告)号:EP3273115A1
公开(公告)日:2018-01-24
申请号:EP16764836.9
申请日:2016-03-10
申请人: NOK Corporation
发明人: YOSHIDA Yusuke , XU Fangman , SUZUKI Nozomu , HOSONUMA Norimasa , HONDA Shigenobu , YOSHIMURA Kenichi , SAKAI Yohei , TOMA Shota
IPC分类号: F16J15/18
摘要: Provided is a seal ring capable of stably reducing a rotational torque while preventing the leakage of sealed fluid. The seal ring includes: an abutment joint part (110) provided at one portion in a circumferential direction thereof; a plurality of dynamic pressure generation grooves (120) provided at intervals in the circumferential direction on a side of a sliding surface thereof sliding on a lateral wall surface of an annular groove; and foreign matter discharging grooves (130) that are provided between a region in which the plurality of dynamic pressure generation grooves (120) is arranged and the abutment joint part (110) in the circumferential direction on the side of the sliding surface sliding on the lateral wall surface, and that are capable of catching foreign matter intruding from the abutment joint part (110) and discharging the caught foreign matter to an outside of a sliding part between the seal ring and the lateral wall surface.
摘要翻译: 本发明提供一种能够在防止密封流体泄漏的同时稳定地降低旋转扭矩的密封环。 密封环包括:沿周向的一部分设置的抵接接合部(110) 多个动压产生槽(120),所述动压产生槽(120)在滑动面的滑动面的侧面沿圆周方向隔开间隔地设置,所述滑动面在环状槽的侧壁面上滑动; 以及异物排出槽(130),所述异物排出槽设置在设置有所述多个动压产生槽(120)的区域与所述滑动面上的所述滑动面上的所述周向上的所述邻接接合部(110) 并且能够捕捉从抵接接合部(110)侵入的异物并将捕捉到的异物排出到密封环与侧壁面之间的滑动部的外侧。
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