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公开(公告)号：US10962054B2
公开(公告)日：2021-03-30
申请号：US16344301
申请日：2017-10-31
Applicant: TAIHO KOGYO CO., LTD.
Inventor： Hiroki Takata , Yuichiro Kajiki
Abstract: A half bearing is provided with a first groove and a second groove on the inner circumferential surface side. The first and second grooves extend in the circumferential direction of the inner circumferential surface, and retain lubricating oil. The end of the first groove in the circumferential direction, on the downstream side in the rotational direction of the shaft (the end on the crush relief side), is located away from a crush relief so as not to reach the crush relief. Also, the end of the second groove in the circumferential direction, on the downstream side in the rotational direction of the shaft (the end on the crush relief 14 side), is located away from the crush relief so as not to reach the crush relief.
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公开(公告)号：US09657769B2
公开(公告)日：2017-05-23
申请号：US14778419
申请日：2014-03-19
Applicant: TAIHO KOGYO CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Katsuhiro Ashihara , Yuichiro Kajiki , Hiroki Takata , Akihiro Honda , Motoichi Murakami
CPC classification number: F16C9/02 , F16C17/022 , F16C33/1025 , F16C33/107
Abstract: Provided is a slide bearing with which friction-reducing effects are obtained and the total volume of effluent oil is limited. In a slide bearing an end of the narrow groove on a downstream side of the rotation direction is disposed at the position which is adjacent to a mating surface on the downstream side of the rotation direction and not communicated with the mating surface on the downstream side of the rotation direction and an end of the narrow groove on an upstream side of the rotation direction is disposed at the position which is the upstream side from the end on the downstream side of the rotation direction and is rotated by an angle no more than 90 degrees from the mating surface on the downstream side of the rotation direction.
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公开(公告)号：US10851836B2
公开(公告)日：2020-12-01
申请号：US16466750
申请日：2017-12-08
Applicant: TAIHO KOGYO CO., LTD.
Inventor： Hiroki Takata , Yuichiro Kajiki
Abstract: A half bearing includes: a semi-cylindrical bearing body having an inner circumferential surface that slides against a counterpart shaft; and a first groove formed in the inner circumferential surface so as to extend in a circumferential direction of the inner circumferential surface. In a cross section that is parallel with the circumferential direction and passes through the first groove, of the bearing body, an angle θ satisfies 90°≤θ≤105°, where the angle θ is formed by: a line connecting the inner circumferential surface side end of a mating surface located on a downstream side in a rotational direction of the counterpart shaft with the center point of a circular arc constituting an outer circumferential surface; and a line connecting an end of the first groove in the circumferential direction, on the upstream side in the rotational direction of the counterpart shaft, with the center point.
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公开(公告)号：US10006491B2
公开(公告)日：2018-06-26
申请号：US15112399
申请日：2015-02-04
Applicant: Taiho Kogyo Co., Ltd.
Inventor： Shuu Kamiya , Yuichiro Kajiki , Keiji Yuda , Yasushi Nakatake
CPC classification number: F16C33/1065 , F16C9/02 , F16C17/022 , F16C33/046 , F16C2240/30 , F16C2240/42 , F16C2360/22
Abstract: There is provided a slide bearing capable of preventing or reducing a temperature increase in lubricant. A cylindrical main bearing is formed by combining a pair of upper bearing and lower bearing and rotatably supports a crank journal. The lower bearing includes a downstream crush relief formed at a downstream end in the rotation direction of the crank journal in an inner periphery of the lower bearing; and an oil groove formed in the inner periphery of the lower bearing so as to communicate with the downstream crush relief.
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公开(公告)号：US10962048B2
公开(公告)日：2021-03-30
申请号：US16344314
申请日：2017-10-31
Applicant: TAIHO KOGYO CO., LTD.
Inventor： Hiroki Takata , Yuichiro Kajiki
Abstract: A half bearing includes circumferentially extending first and second grooves on the inner circumferential surface. The circumferential end of the first groove, on the rotational upstream side of the shaft, has an inclination angle θ1 of 135° formed by: a first imaginary line connecting the inner circumferential surface end of a mating surface and the origin of an outer circumferential surface; and a second imaginary line connecting the end of the first groove and the origin of the outer circumferential surface. The circumferential end of the second groove, on the rotational upstream side of the shaft, has an inclination angle θ2 of 135° formed by: a first imaginary line connecting the inner circumferential surface end of the mating surface and the origin of the inner circumferential surface; and a third imaginary line connecting the end of the second groove and the origin of the outer circumferential surface.
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Patent Agency Ranking
公开(公告)号：US10006484B2
公开(公告)日：2018-06-26
申请号：US15112385
申请日：2015-02-04
Applicant: Taiho Kogyo Co., Ltd.
Inventor： Shuu Kamiya , Yuichiro Kajiki , Keiji Yuda , Yasushi Nakatake
CPC classification number: F16C9/02 , F16C9/04 , F16C17/022 , F16C33/046 , F16C33/1065 , F16C33/1075 , F16C2360/22
Abstract: There is provided a slide bearing capable of preventing or reducing a temperature increase in lubricant. A cylindrical main bearing is formed by combining a pair of upper bearing and lower bearing and rotatably supports a crank journal. The lower bearing includes a downstream crush relief formed at a downstream end in the rotation direction of the crank journal in an inner periphery of the lower bearing; and an oil groove formed in the inner periphery of the lower bearing so as to communicate with the downstream crush relief.
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公开(公告)号：US09879725B2
公开(公告)日：2018-01-30
申请号：US14786826
申请日：2014-04-25
Applicant: TAIHO KOGYO CO., LTD. , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Katsuhiro Ashihara , Yuichiro Kajiki , Hiroki Takata , Akihiro Honda , Motoichi Murakami
CPC classification number: F16C33/107 , F16C9/02 , F16C17/022 , F16C33/103 , F16C33/1065 , F16C2240/30 , F16C2240/42
Abstract: Provided is a slide bearing with which friction can be reduced and the total amount of effluent oil can be reduced. In the slide bearing in which the halved members made by dividing the cylinder in two in the direction parallel to the axial direction are disposed vertically, the narrow grooves are provided at an end of the lower halved member in the circumferential direction from a mating surface on a downstream side of a rotation direction to a predetermined bearing angle and peripheral edge parts are provided outside the narrow grooves in an axial direction.
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公开(公告)号：US10900393B2
公开(公告)日：2021-01-26
申请号：US16239608
申请日：2019-01-04
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , TAIHO KOGYO CO., Ltd.
Inventor： Yusuke Morita , Motoichi Murakami , Takeshi Fukui , Yuichiro Kajiki , Katsuhiro Ashihara , Alan Hase , Takashi Izumi
IPC: F01M1/16 , F01M9/10 , F01M1/06 , G01M15/00 , G01M13/045 , G01M15/09 , G01M15/12 , F01M1/02 , F01M11/02
Abstract: A control device controls an internal combustion engine including: an elastic wave sensor arranged and configured to output a signal responsive to the strength of an acoustic emission wave produced at a sliding portion; and a variable oil pump. The control device is configured to execute an oil pressure control such that the oil pressure approaches a target oil pressure according to an engine operating condition. This oil pressure control includes a first pressure-increase processing executed where an AE correlation value correlated with the strength or occurrence frequency of the acoustic emission wave detected by the elastic wave sensor is greater than a first threshold value. The first pressure-increase processing increases the target oil pressure associated with a first engine operating condition present when the AE correlation value becomes greater than the first threshold value, as compared to when the AE correlation value is not greater than that.
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公开(公告)号：US09964140B2
公开(公告)日：2018-05-08
申请号：US15035904
申请日：2014-11-07
Applicant: TAIHO KOGYO Co., Ltd.
Inventor： Katsuhiro Ashihara , Yuichiro Kajiki , Hiroki Takata
CPC classification number: F16C9/02 , F16C17/022 , F16C17/028 , F16C33/046 , F16C33/1025 , F16C33/1065 , F16C33/107 , F16C2240/30 , F16C2240/42
Abstract: Provided is a slide bearing with which friction can be reduced and the total amount of effluent oil can be reduced. In the slide bearing in which halved members, made by dividing a cylinder in two in a direction parallel to the axial direction are disposed vertically, grooves are provided at an end of the axial direction of the lower halved member in the circumferential direction and the height of a peripheral edge part configured at the outside of the groove in the axial direction is changed corresponding to the circumstance direction and the gradient of the height of the peripheral edge part is configured in asymmetry using the center (the bearing angle (ω) is (ω2)) in the circumferential direction as a symmetry axis.
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公开(公告)号：US09964139B2
公开(公告)日：2018-05-08
申请号：US15035899
申请日：2014-11-07
Applicant: TAIHO KOGYO Co., Ltd.
Inventor： Katsuhiro Ashihara , Yuichiro Kajiki , Hiroki Takata
CPC classification number: F16C9/02 , F16C17/022 , F16C33/046 , F16C33/1065
Abstract: Provided is a slide bearing 1 with which friction can be reduced and the total amount of effluent oil can be reduced. In the slide bearing in which halved members, made by dividing a cylinder in two in a direction parallel to the axial direction are disposed vertically, grooves are provided at an end of the axial direction of the lower halved member in the circumferential direction and the depth of the groove in the radial direction is changed corresponding to the circumstance direction and the gradient of the depth (d) of the groove in the radial direction is configured in asymmetry using the center (the bearing angle (ω) is (ω2)) in the circumferential direction as a symmetry axis.
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