Title:
VALVE MECHANISM OF INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2021/199354
Kind Code:
A1
Abstract:
In this valve mechanism of an internal combustion engine, rocker arm shafts (51, 52) include eccentric shaft portions (51c, 52c) having second axes (C51, C52) offset from first axes (C41, C42) of support shaft portions (51d, 52d). The valve mechanism (40) further includes rotary biasing members (53, 54) for adding circumferential biasing force to the rocker arm shafts (51, 52). The rocker arm shafts (51, 52) receive the biasing force of the rotary biasing members (53, 54) and rotate around the first axes (C41, C42) of the support shaft portions (51d, 52d) to change support positions of rocker arms (47, 48) by the eccentric shaft portions (51c, 52c). The valve mechanism (40) further includes a side biasing member (65) for biasing the rocker arm shafts (51, 52) in an axially orthogonal direction.
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Inventors:
ONO NAOTO (JP)
KUROKAWA MASAYA (JP)
ISHIDA SHUICHI (JP)
KASHIWA TOYOSABURO (JP)
KUROKAWA MASAYA (JP)
ISHIDA SHUICHI (JP)
KASHIWA TOYOSABURO (JP)
Application Number:
PCT/JP2020/014950
Publication Date:
October 07, 2021
Filing Date:
March 31, 2020
Export Citation:
Assignee:
HONDA MOTOR CO LTD (JP)
International Classes:
F01L1/18; F01L1/20
Domestic Patent References:
| WO2019186887A1 | 2019-10-03 |
Foreign References:
| JP2018168738A | 2018-11-01 | |||
| JP2003160085A | 2003-06-03 |
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
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