公开(公告)号：EP4428404A2

公开(公告)日：2024-09-11

申请号：EP24191288.0

申请日：2021-01-07

Applicant: Stein Seal Company

Inventor： GARRISON, Glenn M.

IPC: F16J15/44

CPC classification number: F16J15/40 ,  F01D11/04 ,  F01D25/22 ,  F16J15/441 ,  F16C2360/2320130101 ,  F16C17/102 ,  F16C33/107 ,  F16C33/1075 ,  F16C33/748 ,  F01D11/003 ,  F05D2240/58120130101 ,  F05D2250/1820130101 ,  F05D2250/29420130101 ,  F16J15/442

Abstract: A circumferential seal assembly (87) suitable for forming a thin film between a rotatable runner (15, 35, 67) and a sealing ring (3, 4, 23, 24) is presented. The assembly (87) includes an annular seal housing (2, 22), a rotatable runner (15, 35, 67), an annular seal ring (3, 4, 23, 24), and a plurality of groove structures (66). Each groove structure (66) includes a groove (69) and an optional feed groove (70). The groove (69) includes at least two adjoining steps (71) defined by base walls (72) arranged to decrease depthwise. Two adjoining base walls (72) are disposed about a base shoulder (73). Each base shoulder (73) locally redirects a longitudinal flow (80) to form an outward radial flow (78) in the direction of the annular seal ring (3, 4, 23, 24). The base walls (72) are bounded by and intersect a pair of side walls (74). A side wall (74) includes at least one side shoulder (75) which narrows the groove (69) widthwise and locally redirects the longitudinal flow (80) to form a lateral flow (79) in the direction of the other side wall (74). Outward and lateral flows (78, 79) separately or in combination enhance stiffness of a thin-film layer (20) between the annular seal ring (3, 4, 23, 24) and the rotatable runner (15, 35, 67).

公开(公告)号：EP2740951A4

公开(公告)日：2015-12-30

申请号：EP12820742

申请日：2012-07-25

Applicant: NTN TOYO BEARING CO LTD

Inventor： YOSHINO MASATO

IPC: F16C17/04 ,  F16C17/02 ,  F16C17/10

CPC classification number: F16C17/042 ,  F16C17/024 ,  F16C17/10 ,  F16C17/102 ,  F16C17/26 ,  F16C2360/24

Abstract: Provided is a thrust foil bearing (20), including: a thrust member (21); and a foil member (22) mounted to an end surface of the thrust member (21) and having a thrust bearing surface (31c) that forms a thrust bearing gap (T), in which the foil member (22) includes a foil (30) integrally including: a plurality of leaves (31) each including: a free end (31a) on one side in a circumferential direction; and the thrust bearing surface (31c); and a coupling portion (32) for coupling the plurality of leaves (31) to each other.

公开(公告)号：EP0589514B1

公开(公告)日：1998-06-03

申请号：EP93202666.9

申请日：1993-09-15

Applicant: Philips Electronics N.V.

Inventor： Tielemans, Leonardus Petrus Maria

IPC: B21J5/12 ,  B21K25/00 ,  F16C17/08

CPC classification number: B21J5/12 ,  B21K25/00 ,  F16C17/026 ,  F16C17/08 ,  F16C17/102 ,  F16C17/105 ,  F16C33/06 ,  F16C33/107

公开(公告)号：EP2923093B1

公开(公告)日：2018-10-10

申请号：EP13791955.1

申请日：2013-11-06

Applicant: Federal-Mogul Wiesbaden GmbH

Inventor： DAMOUR, Philippe

IPC: F16C17/10 ,  F16C17/02 ,  F16C33/04 ,  F16C33/14 ,  B23B41/12

CPC classification number: B23B41/12 ,  F16C17/02 ,  F16C17/022 ,  F16C17/10 ,  F16C17/102 ,  F16C33/04 ,  F16C33/046 ,  F16C33/1065 ,  F16C33/14 ,  F16C2220/60 ,  F16C2240/40 ,  F16C2240/42 ,  F16C2240/70 ,  Y10T29/49636

公开(公告)号：EP2740951B1

公开(公告)日：2018-09-12

申请号：EP12820742.0

申请日：2012-07-25

Applicant: NTN Corporation

Inventor： YOSHINO Masato

IPC: F16C17/04 ,  F16C17/02 ,  F16C17/10

CPC classification number: F16C17/042 ,  F16C17/024 ,  F16C17/10 ,  F16C17/102 ,  F16C17/26 ,  F16C2360/23 ,  F16C2360/24

Abstract: Provided is a thrust foil bearing (20), including: a thrust member (21); and a foil member (22) mounted to an end surface of the thrust member (21) and having a thrust bearing surface (31c) that forms a thrust bearing gap (T), in which the foil member (22) includes a foil (30) integrally including: a plurality of leaves (31) each including: a free end (31a) on one side in a circumferential direction; and the thrust bearing surface (31c); and a coupling portion (32) for coupling the plurality of leaves (31) to each other.

公开(公告)号：EP3365553A1

公开(公告)日：2018-08-29

申请号：EP16858113.0

申请日：2016-10-19

Applicant: Oceana Energy Company

Inventor： POWER, Daniel E., III

IPC: F03B17/06 ,  F03B3/12 ,  F03B3/16 ,  F03B11/06

CPC classification number: F03B17/061 ,  F03B11/06 ,  F05B2220/7068 ,  F05B2230/60 ,  F05B2240/311 ,  F05B2240/53 ,  F05B2250/02 ,  F05B2280/4002 ,  F16C17/102 ,  F16C2212/04 ,  Y02E10/28 ,  Y02E10/38 ,  Y02P70/527

Abstract: A hydroelectric energy system includes a stator comprising a first plurality of electricity-generating elements. The system also includes a rotor comprising a second plurality of electricity-generating elements. The rotor is disposed radially outward of an outer circumferential surface of the stator and is configured to rotate around the stator about an axis of rotation. The rotor is a flexible belt structure having a variable thickness and extending along a portion of an axial length of the stator. The system further includes at least one hydrodynamic bearing mechanism configured to support the rotor relative to the stator during rotation of the rotor around the stator. The at least one hydrodynamic bearing mechanism includes a bearing surface made of wood or a composite material.

公开(公告)号：EP3096026B1

公开(公告)日：2018-08-08

申请号：EP14870304.4

申请日：2014-12-05

Applicant: NTN Corporation

Inventor： ARAI Takao ,  ITO Fuyuki ,  FUJIWARA Mikihisa

IPC: F16C17/10 ,  F16C33/74 ,  H02K7/08

CPC classification number: F16C17/102 ,  F16C17/107 ,  F16C33/745 ,  F16C2370/12 ,  H02K5/167 ,  H02K5/1677

Abstract: Provided is a fluid dynamic bearing device (1), including: a bearing sleeve (8) made of sintered metal; a rotary member (2) including a shaft portion (21) inserted along an inner periphery of the bearing sleeve (8) and a hub portion (23) expanding radially outward from one end of the shaft portion (21) ; and first and second thrust bearing portions (T1, T2) that form thrust bearing gaps respectively on an upper end surface (8b) and a lower end surface (8c) of the bearing sleeve (8) along with rotation of the rotary member (2). At least an outer peripheral surface of the bearing sleeve (8) is subjected to pore sealing treatment. A sealing gap (S) for retaining an oil surface of lubricating oil is made along a tapered outer peripheral surface (8d1) of the bearing sleeve (8). A lid member (10) having a bottomed cylindrical shape being fixed to an outer periphery of a lower end of the bearing sleeve (8).

公开(公告)号：EP3026280A1

公开(公告)日：2016-06-01

申请号：EP14829542.1

申请日：2014-06-25

Applicant: NTN Corporation

Inventor： KURIMURA, Tetsuya ,  ITO, Fuyuki ,  KOMATSUBARA, Shinji ,  UCHIYAMA,Tadahiro

IPC: F16C33/12 ,  B22F1/00 ,  B22F3/00 ,  B22F5/00 ,  C22C9/00 ,  F16C17/10

CPC classification number: F16C33/145 ,  B22F1/0003 ,  B22F1/0014 ,  B22F3/16 ,  B22F5/00 ,  B22F2301/10 ,  B22F2301/30 ,  B22F2301/35 ,  C22C1/0425 ,  C22C9/00 ,  C22C9/02 ,  F16C17/08 ,  F16C17/102 ,  F16C32/0633 ,  F16C33/104 ,  F16C33/128 ,  F16C2204/10 ,  F16C2370/12 ,  H02K7/08

Abstract: A sintered bearing includes a sintered metal formed by using a metal powder mixture containing copper powder and iron powder. The metal powder mixture contains 80 wt% or more of particles having an average particle diameter of less than 45 µm. The copper powder contains electrolytic copper powder. The electrolytic copper powder contains 40 number% or more of particles having a circularity of 0.64 or more.

Abstract translation: 烧结轴承包括通过使用包含铜粉和铁粉的金属粉末混合物形成的烧结金属。 金属粉末混合物含有80重量％以上的平均粒径小于45μm的粒子。 铜粉含有电解铜粉。 电解铜粉含有40个数％以上的圆形度为0.64以上的颗粒。

公开(公告)号：EP1215708B1

公开(公告)日：2006-09-27

申请号：EP01129861.9

申请日：2001-12-14

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yoshida, Yukinari, Intellectual Property Division

IPC: H01J35/10

CPC classification number: F16C33/10 ,  F16C17/102 ,  H01J35/101 ,  H01J35/105 ,  H01J2235/106 ,  H01J2235/1086

公开(公告)号：EP0769628A1

公开(公告)日：1997-04-23

申请号：EP96114887.1

申请日：1996-09-17

Applicant: HITACHI, LTD. ,  JAPAN SERVO CO. LTD.

Inventor： Nakano, Masaaki ,  Kono, Takashi ,  Tomida, Kenji ,  Inoue, Tomoaki ,  Nishida, Hiroshi ,  Nishimura, Yuji ,  Sato, Takeru ,  Hatori, Sachio

IPC: F16C33/10

CPC classification number: F16C17/102 ,  F16C17/028 ,  F16C17/18 ,  F16C33/1035 ,  F16C33/107 ,  F16C33/1075 ,  F16C2370/12 ,  G11B19/2009 ,  G11B25/043

Abstract: A bearing device where a sliding bearing rotatably supporting a shaft is molded with an inexpensive sintered material, three asymmetrical circular arc-shaped radial bearings are formed in the inner peripheral surface of the shaft, taper land-shaped thrust bearings are formed in the opposite end surfaces of the radial bearing surface, T-shaped bubble removing means which is constituted by axial and radial flow passages formed in the shaft opposed to the radial bearing is provided, and magnetic fluid is used as a lubricant. A magnetic disk unit using the bearing device is also disclosed.

Abstract translation: 一种轴承装置，其中可旋转地支撑轴的滑动轴承用廉价的烧结材料模制，在轴的内周面形成有三个不对称的圆弧形径向轴承，锥形止推轴承形成在相对端 提供径向支承面的表面，设置有与径向轴承相对的轴上形成的轴向和径向流动通道构成的T形气泡去除装置，并使用磁性流体作为润滑剂。 还公开了一种使用该轴承装置的磁盘单元。