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公开(公告)号：US09556759B2
公开(公告)日：2017-01-31
申请号：US14881456
申请日：2015-10-13
Applicant: DENSO CORPORATION , NIPPON SOKEN, INC.
Inventor： Makoto Otsubo , Hiroki Takahashi , Masaya Misaki
Abstract: A valve timing controller has a driving rotor, a driven rotor, and a planet gear engaged with the driving rotor and the driven rotor to control a rotation phase of the driven rotor relative to the driving rotor by carrying out planet movement. The driven rotor has a contact surface in contact with a tip end of a chamfering portion of a camshaft, and a feed port passing through the driven rotor in an axial direction to introduce lubricant supplied from the camshaft into the driving rotor. The feed port has an outer edge part located on a radially outer side. The outer edge part, on a side adjacent to the contact surface, is located on a radially outer side of the tip end of the chamfering portion and is located on a radially inner side of an outer circumference part of the journal portion.
Abstract translation: 气门正时控制器具有驱动转子，从动转子和与驱动转子和从动转子啮合的行星齿轮，通过执行行星运动来控制从动转子相对于驱动转子的旋转相位。 从动转子具有与凸轮轴的倒角部的前端接触的接触面和沿轴向贯通从动转子的供给口，将从凸轮轴供给的润滑油引入到驱动转子中。 进料口具有位于径向外侧的外边缘部分。 所述外边缘部分在与所述接触面相邻的一侧上位于所述倒角部的前端的径向外侧，并且位于所述轴颈部的外周部的径向内侧。
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公开(公告)号：US09528401B2
公开(公告)日：2016-12-27
申请号：US14600493
申请日：2015-01-20
Applicant: DENSO CORPORATION , NIPPON SOKEN, INC.
Inventor： Makoto Otsubo , Taei Sugiura , Hiroki Takahashi
CPC classification number: F01L1/352 , F16C19/06 , F16C19/26 , F16C2361/61 , F16H1/32 , F16H1/321 , F16H2001/323 , F16H2001/324 , F16H2001/327
Abstract: A planet bearing has a single row of spherical rolling elements between an outer wheel and an inner wheel. A planet gear is supported by the outer wheel from a radially inner side. A planet carrier supports the inner wheel from a radially inner side. An elastic component is interposed between the inner wheel and the planet carrier. A driving rotor or a driven rotor has a thrust bearing part that supports the planet gear from one side in the axial direction. The outer wheel is in contact with the spherical rolling element at a rolling contact point and defines a contact angle on the one side in the axial direction.
Abstract translation: 行星轴承在外轮和内轮之间具有单排球形滚动元件。 行星齿轮由径向内侧的外轮支撑。 行星架从径向内侧支撑内轮。 弹性部件插入在内轮和行星架之间。 驱动转子或从动转子具有从轴向一侧支撑行星齿轮的止推轴承部。 外轮在滚动接触点处与球面滚动元件接触并且在轴向方向上限定一个接触角。
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公开(公告)号：US11339689B2
公开(公告)日：2022-05-24
申请号：US17338350
申请日：2021-06-03
Applicant: DENSO CORPORATION
Inventor： Makoto Otsubo , Hiroki Takahashi , Kenichi Tomomatsu , Shuhei Yamamoto
Abstract: A bearing portion of a planetary rotatable body for providing bearing support in a thrust direction is defined as a planetary thrust bearing portion. A driving-side rotatable body or a driven-side rotatable body, which is configured to contact the planetary thrust bearing portion in the thrust direction, is defined as a specific rotatable body. A bearing portion of the specific rotatable body for providing bearing support in the thrust direction is defined as a specific thrust bearing portion. In a parallel state where the specific thrust bearing portion and the planetary thrust bearing portion are parallel to each other, the specific thrust bearing portion and the planetary thrust bearing portion contact with each other only on one of an eccentric side and a counter-eccentric side of the planetary rotatable body while the counter-eccentric side is opposite to the eccentric side.
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公开(公告)号：US20210404351A1
公开(公告)日：2021-12-30
申请号：US17447482
申请日：2021-09-13
Applicant: DENSO CORPORATION
Inventor： Makoto Otsubo , Kenichi Tomomatsu , Shuhei Yamamoto , Hiroki Takahashi , Soichi Kinouchi
Abstract: An Oldham coupling includes: a driven Oldham flange that is formed at a drive-side rotor; a drive Oldham flange that is formed at a planetary rotor; and an Oldham intermediate that is configured to synchronize rotation of the driven Oldham flange and rotation of the drive Oldham flange. A thrust section is formed at a rotor plate portion which is a portion other than the Oldham coupling. The thrust section is configured to limit tilting of the planetary rotor relative to the driven Oldham flange when the thrust section contacts the planetary rotor in an axial direction. There is satisfied a relationship of θ2>θ1 where: θ1 is a maximum tilt amount of the planetary rotor relative to the driven Oldham flange; and θ2 is a maximum tilt amount of the planetary rotor in a clearance formed at the Oldham coupling.
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公开(公告)号：US10280816B2
公开(公告)日：2019-05-07
申请号：US15552375
申请日：2016-04-21
Applicant: DENSO CORPORATION , SOKEN, INC.
Inventor： Shota Toda , Makoto Otsubo , Hiroki Takahashi
Abstract: A planetary rotor includes: a planetary gear engaged with a driving rotor and a driven rotor on an eccentric side; and a single sequence type planetary bearing having an outer ring held by the planetary gear, an inner ring supported by a planetary carrier in the radial direction and receiving a restoring force from an elastic component, and a plurality of spherical rolling elements interposed between the outer ring and the inner ring. The outer ring is arranged to form a rolling contact part in contact with the spherical rolling element on the eccentric side, with a contact angle to a specific side in the axial direction. A thrust-bearing part where the driving rotor is supported by the driven rotor on the specific side and on the eccentric side is located closer to a rotation center line of the driven rotor than the rolling contact part is.
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Patent Agency Ranking
公开(公告)号：US08733307B2
公开(公告)日：2014-05-27
申请号：US13628191
申请日：2012-09-27
Applicant: Denso Corporation
Inventor： Seiichirou Washino , Toru Takahashi , Makoto Otsubo , Kuniaki Oka , Shuhei Oe
CPC classification number: F01L1/3442 , F01L1/344 , F01L1/352 , F01L2001/3522 , F16D57/002 , F16F9/53 , F16F9/535 , F16F13/30 , F16J15/164 , F16J15/3212 , F16J15/40 , F16J15/403 , F16J15/43 , H01F1/447
Abstract: A sealing structure has a permanent magnet and a magnetic-flux guiding member for guiding magnetic flux of the permanent magnet to a brake shaft of a brake rotating member. The magnetic-flux guiding member surrounds an outer periphery of the brake shaft so as to form a sealing gap around the brake shaft. The sealing gap is communicated to a fluid chamber, in which magnetic viscous fluid is filled. A fluid sealing member is provided at the brake shaft at a housing outer side of the magnetic-flux guiding member to form an intermediate fluid chamber, in which an intermediate fluid made of non-magnetic liquid is filled.
Abstract translation: 密封结构具有用于将永久磁铁的磁通引导到制动旋转构件的制动轴的永磁体和磁通引导构件。 磁通引导构件围绕制动轴的外周，以在制动轴周围形成密封间隙。 密封间隙被传送到其中填充有磁性粘性流体的流体室。 流体密封构件设置在磁通引导构件的壳体外侧处的制动轴处，以形成中间流体室，其中填充由非磁性液体制成的中间流体。
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公开(公告)号：US11085337B2
公开(公告)日：2021-08-10
申请号：US16775599
申请日：2020-01-29
Applicant: DENSO CORPORATION
Inventor： Soichi Kinouchi , Kenji Tada , Makoto Otsubo
Abstract: A valve timing adjustment device includes: a first rotatable body that is rotated about a rotational axis synchronously with one of a drive shaft and a driven shaft of an engine; and a second rotatable body that is rotated about the rotational axis synchronously with the other one of the drive shaft and the driven shaft. The first rotatable body includes: a fastening portion, a slide portion and a bearing portion. The fastening portion is fastened to the one of the drive shaft and the driven shaft. The bearing portion includes an outer peripheral surface that is opposed to an inner peripheral surface of the second rotatable body, and the bearing portion rotatably supports the second rotatable body. The fastening portion projects on one axial side of the slide portion and the bearing portion in an axial direction toward the one of the drive shaft and the driven shaft.
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公开(公告)号：US09850788B2
公开(公告)日：2017-12-26
申请号：US15083641
申请日：2016-03-29
Applicant: DENSO CORPORATION , NIPPON SOKEN, INC.
Inventor： Makoto Otsubo , Hiroki Takahashi
Abstract: A valve timing controller includes a driving rotor, a driven rotor, a planetary rotor, a planetary carrier, and an elastic component to produce a restoring force biasing the planetary rotor to an eccentric side such that the driving rotor is inclined to the driven rotor. The driving rotor has an inclination angle θ1 relative to the driven rotor in a first inclination state where the driving rotor is in contact with the driven rotor on both sides in the axial direction. The inclination angle θ1 is smaller than an inclination angle θ2 in a second inclination state where the driving rotor is in contact with the driven rotor on both sides in the radial direction, and is smaller than an inclination angle θ3 in a third inclination state where the driving rotor is in contact with the camshaft on both sides in the radial direction.
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公开(公告)号：US11459916B2
公开(公告)日：2022-10-04
申请号：US17473503
申请日：2021-09-13
Applicant: DENSO CORPORATION
Inventor： Makoto Otsubo , Kenichi Tomomatsu , Shuhei Yamamoto , Hiroki Takahashi , Soichi Kinouchi
Abstract: A drive-side rotor is rotated synchronously with a crankshaft. A driven-side rotor is rotated integrally with a camshaft. An internal gear section is formed at the driven-side rotor. An Oldham coupling includes: a driven Oldham flange that is formed at the drive-side rotor; a drive Oldham flange that is formed at the planetary rotor; and an Oldham intermediate that is configured to synchronize rotation of the driven Oldham flange and rotation of the drive Oldham flange while permitting eccentricity between the driven Oldham flange and the drive Oldham flange. There is satisfied a relationship of θ2
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公开(公告)号：US09394810B2
公开(公告)日：2016-07-19
申请号：US14796191
申请日：2015-07-10
Applicant: DENSO CORPORATION , NIPPON SOKEN, INC.
Inventor： Makoto Otsubo , Hiroki Takahashi , Taei Sugiura
CPC classification number: F01L1/352 , F01L1/344 , F01L2001/3521 , F01L2250/02 , F01L2820/032
Abstract: In a definition cross-section of a planet gear located on an eccentric side in a radial direction relative to a driving rotor and a driven rotor, an imaginary straight line is defined by connecting a center of a planet side outer arc part that configures a raceway groove of a planet outer wheel on the eccentric side to a center of a solar side outer arc part that configures a raceway groove of a solar outer wheel on an opposite side opposite from the eccentric side. A planet side inner arc part of a planet inner wheel and a solar side inner arc part of a solar inner wheel are located on the imaginary straight line in the definition cross-section.
Abstract translation: 在位于相对于驱动转子和从动转子的径向偏心侧的行星齿轮的定义横截面中，通过连接构成滚道的行星侧外弧部的中心来限定假想直线 在偏心侧的行星外轮的凹槽与太阳能侧外圆弧部分的中心相匹配，该太阳侧外弧部分构成与偏心侧相对的相反侧上的太阳能外轮的滚道槽。 行星内轮的行星侧内弧部分和太阳能内轮的太阳侧内弧部分位于定义横截面中的假想直线上。
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