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41. 发明公开

EP4001680A1 TAPERED ROLLER BEARING 有权
公开(公告)号：EP4001680A1
公开(公告)日：2022-05-25
申请号：EP21216182.2
申请日：2018-03-26
申请人： NTN Corporation
发明人： KAWAI, Takashi , MATSUSHITA, Tomoki
IPC分类号： F16C19/36 , F16C33/46 , F16C33/58 , F16C33/64 , F16C33/66 , F16C33/36
摘要： A tapered roller bearing (10) includes an outer ring including an outer-ring raceway surface around an inner circumferential surface; an inner ring arranged on a radially inner side relative to the outer ring, the inner ring including an inner-ring raceway surface around an outer circumferential surface. A plurality of tapered rollers is disposed between the outer-ring raceway surface and the inner-ring raceway surface, the tapered roller including a rolling surface in contact with the outer-ring raceway surface and the inner-ring raceway surface. The tapered roller bearing (10) also includes a cage including a plurality of pockets arranged at prescribed intervals in a circumferential direction, the cage accommodating and holding the plurality of tapered rollers in the plurality of pockets, the cage including a smaller annular portion continuous on a smaller-diameter end face side of the tapered roller, a larger annular portion continuous on a larger-diameter end face side of the tapered roller, and a plurality of posts that couple the annular portions to each other. The plurality of tapered rollers include a nitrogen enriched layer formed on a surface layer of the rolling surface. A distance from an outermost surface of the surface layer to a bottom of the nitrogen enriched layer is not shorter than 0.2 mm. In each tapered roller of the plurality of tapered rollers, T2 is smaller than T1 and T2 is smaller than T3, where T1 represents a distance at a first measurement point which is a boundary point between a chamfered portion of the tapered roller and a crowned portion where crowning is formed in the rolling surface of the tapered roller, T2 represents a distance at a second measurement point which is a position at a distance of 1.5 mm from a smaller end face of the tapered roller, and T3 represents a distance at a third measurement point at a center of the rolling surface of the tapered roller.

42. 发明授权

EP3842651B1 PUMP BODY AND COMPRESSOR WITH PUMP BODY 有权
公开(公告)号：EP3842651B1
公开(公告)日：2022-05-25
申请号：EP18931067.5
申请日：2018-12-12
发明人： XU, Jia , WAN, Pengkai , LUO, Fayou , WU, Fei , SUN, Wenjiao , SHI, Jinfei , YANG, Guomang
IPC分类号： F04C29/02 , F16C33/66 , F16C33/58 , F04C18/356 , F01C21/10

43. 发明授权

EP3594552B1 TURBOCHARGER 有权
公开(公告)号：EP3594552B1
公开(公告)日：2022-04-27
申请号：EP19187206.8
申请日：2015-05-11
发明人： Kocher, Ryan Matthew
IPC分类号： F16N31/02 , F01D25/16 , F16C33/66 , F16C19/18 , F01D9/02 , F01D25/00 , F01D25/18 , F01D25/24 , F02C7/06 , F04D25/02 , F04D29/063 , F02B39/14

44. 发明公开

EP3981994A1 TAPERED ROLLER BEARING 有权
公开(公告)号：EP3981994A1
公开(公告)日：2022-04-13
申请号：EP21211496.1
申请日：2018-03-27
申请人： NTN Corporation
发明人： KAWAI, Takashi , MATSUSHITA, Tomoki
IPC分类号： F16C19/36 , F16C33/36 , F16C33/46 , F16C33/58 , F16C33/64 , F16C33/66
摘要： A suitable tapered roller bearing which is less in torque loss and heat generation caused by friction and shorter in running-in period is provided. The tapered roller bearing comprises an outer ring including an outer-ring raceway surface around an inner circumferential surface; an inner ring arranged on a radially inner side relative to the outer ring. The inner ring includes an inner-ring raceway surface around an outer circumferential surface and a larger flange surface arranged on a larger diameter side relative to the inner-ring raceway surface. A plurality of tapered rollers is disposed between the outer-ring raceway surface and the inner-ring raceway surface. The tapered roller includes a rolling surface in contact with the outer-ring raceway surface and the inner-ring raceway surface and a larger end face in contact with the larger flange surface. The rolling surface of the tapered roller is provided with a crowning profile. A chamfered portion is provided between the larger end face and the crowning profile. A recess is provided in a central portion of the larger end face. A projection is provided in an outer circumferential portion of the larger end face, the projection having an inner circumferential end of projection connected to the recess and an outer circumferential end connected to a chamfered portion, in a cross section along a rolling axis of the tapered roller. The large end face includes points C1 and C4 connecting the outer circumferential end of the projection and the chamfered portion, points C2 and C3 connecting the inner circumferential end of the projection and the recess, an intermediate point P5 between the point C1 and the point C2 on the large end face, and an intermediate point P6 between the point C3 and the point C4 on the large end face. A value of R/RBASE is not smaller than 0.75 and not greater than 0.87, with R representing a reference radius of curvature of a single arc which passes through the point C1, the intermediate point P5, the intermediate point P6, and the point C4 in the cross section and RBASE representing a distance from an apex of a cone angle of the tapered roller to the larger flange surface of the inner ring.

45. 发明公开

EP3981986A1 BEARING APPARATUS AND VACUUM PUMP APPARATUS 有权转让
公开(公告)号：EP3981986A1
公开(公告)日：2022-04-13
申请号：EP21211707.1
申请日：2019-12-20
申请人： Ebara Corporation
发明人： NAGAYAMA, Masami
IPC分类号： F04C18/12 , F04C25/02 , F04D19/04 , F04D29/063 , F16N7/36 , F16C33/66 , F04D29/059 , F16C33/76
摘要： A bearing apparatus capable of reducing an installation space of a vacuum pump and sufficiently exhibiting a function of a bearing is disclosed. The bearing apparatus comprises: a bearing configured to support a shaft extending in a vertical direction; a bearing housing configured to house the bearing; a rotating cylinder disposed below the bearing housing and capable of fixing to the shaft, and a bearing casing configured to house the bearing, the bearing housing, and the rotating cylinder. At least one of a first contact seal is disposed between the rotating cylinder and the bearing casing and a second contact seal disposed between the bearing casing and the shaft.

46. 发明公开

EP3959797A1 ELECTRIC MOTOR 审中-公开
公开(公告)号：EP3959797A1
公开(公告)日：2022-03-02
申请号：EP20726240.3
申请日：2020-04-23
申请人： Texa Dynamics S.R.L.
发明人： VIANELLO, Bruno
IPC分类号： H02K5/167 , F16C17/18 , F16C33/66

47. 发明授权

EP3628883B1 VAKUUMPUMPE 有权
公开(公告)号：EP3628883B1
公开(公告)日：2022-02-09
申请号：EP19214565.4
申请日：2019-12-09
发明人： Mekota, Mirko , Schweighöfer, Michael
IPC分类号： F16C33/66 , F04D19/04 , F16C33/76 , F16C19/06

49. 发明公开

EP3919766A1 BALL BEARING 有权
公开(公告)号：EP3919766A1
公开(公告)日：2021-12-08
申请号：EP20748495.7
申请日：2020-01-23
申请人： NTN Corporation
发明人： KAWAGUCHI Hayato , ISOBE Nozomi
IPC分类号： F16C19/06 , F16C33/41 , F16C33/44 , F16C33/66 , F16C33/78
摘要： A ball bearing (B) is provided which includes a cage (3) made of a resin, and having pockets (3a) open to the side surface of the cage (3) on its one axial side. The ball bearing (B) includes an outer bearing ring (1) including a radially protruding engagement portion (1b) on the other axial side of the raceway surface (1a). The cage (3) includes engagement portions (3b) disposed on the other axial side of the pockets (3a) so as to be engageable with the engagement portion (1b) of the outer bearing ring (1) in the other axial direction. The relationship between the axial depth H of each pocket (3a) and the diameter d of the ball (4) is set at 0.15d ≤ H ≤ 0.65d. By setting the above relationship in this way, it is possible to reduce the deformation of the cage (3) due to a centrifugal force, and to reduce the shear resistance of lubricating oil between the pockets (3a) and the balls (4).

50. 发明公开

EP3901291A1 MASCHINENELEMENT MIT EINER WÄLZKONTAKTFLÄCHE UND VERFAHREN ZUR WÄRMEBEHANDLUNG EINES MASCHINENELEMENTES 有权
公开(公告)号：EP3901291A1
公开(公告)日：2021-10-27
申请号：EP20020198.6
申请日：2020-04-24
申请人： Schaeffler Technologies AG & Co. KG , Deutsche Edelstahlwerke Specialty Steel GmbH & Co. KG
发明人： Blaß, Toni , Franke, Jörg , Trojahn, Werner , Strohm, Dennis , Herrera, Clara , Krull, Hans-Günter
IPC分类号： C21D6/00 , C22C38/00 , C22C38/02 , C22C38/04 , F16C19/00 , F16C33/64 , F16C33/66 , C21D9/40 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/18 , C22C38/24 , C22C38/38 , C22C38/22
摘要： Ein Maschinenelement, insbesondere Zahnrad oder Wälzlagerelement, welches zur Schmierung mit einem wasserbasierten Schmierstoff vorgesehen ist, weist eine Wälzkontaktfläche (5, 6) auf, die durch einen Stahlwerkstoff folgender Zusammensetzung (Angaben jeweils in Gew.-%) gebildet ist:

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