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Title:
VALVE TIMING ADJUSTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/009104
Kind Code:
A1
Abstract:
A drive rotating body (10) rotates about a rotational center line (O) in conjunction with a crank shaft. A driven rotating body (20) includes a thrust bearing portion (26) about the rotational center line common with the drive rotating body, and rotates about the rotational center line in conjunction with a coaxially linked cam shaft. A single-row planetary bearing (40) comprises a plurality of spherical rolling elements (46) which are interposed in a row between an outer race (42) and an inner race (44). The planetary gear (30, 2030) is thrust-supported in the thrust bearing portion and radially supported by means of the outer race eccentrically with respect to the drive rotating body and the driven rotating body. The planetary gear (30, 2030) is meshed with the drive rotating body and the driven rotating body on the eccentric side with respect to the drive rotating body and the driven rotating body, and executes a planetary motion, thereby adjusting a rotation phase between the drive rotating body and the driven rotating body. A planetary carrier (50) radially supports the inner race, and allows for a planetary motion of the planetary gear. The thrust bearing portion is arranged so as to be able to thrust-support the planetary gear inclined with respect to the rotational center line. The planetary gear includes a recess (38, 2038) which is open toward the thrust bearing portion. In a rotation phase adjusted to a specific phase, the recess is positioned on an anti-eccentric side opposite from the eccentric side with respect to a rotation center line (C) of the planetary gear.

Inventors:
OTSUBO Makoto (C/O SOKEN, INC. 500-20, Minamiyama, Komenoki-ch, Nisshin-city Aichi 11, 〒4700111, JP)
TAKAHASHI Hiroki (C/O DENSO CORPORATION, 1-1 Showa-ch, Kariya-city Aichi 61, 〒4488661, JP)
Application Number:
JP2018/023810
Publication Date:
January 10, 2019
Filing Date:
June 22, 2018
Export Citation:
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Assignee:
DENSO CORPORATION (1-1 Showa-cho, Kariya-city Aichi, 61, 〒4488661, JP)
International Classes:
F01L1/352
Foreign References:
JP2011236877A2011-11-24
JP2008223552A2008-09-25
JP2016079831A2016-05-16
JP2017115602A2017-06-29
Attorney, Agent or Firm:
JIN Shunji (6th Floor, Takisada Bldg. 2-13-19, Nishiki, Naka-k, Nagoya-city Aichi 03, 〒4600003, JP)
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