Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Reexamination Certificate
2008-04-15
2008-04-15
Eshete, Zelalem (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
C123S090150, C123S090390
Reexamination Certificate
active
07357107
ABSTRACT:
There is provided a valve system for an internal combustion engine, in which a rocker shaft required to have a higher stiffness has a larger diameter. A rocker shaft on an intake side is formed to have a larger diameter than that of a rocker shaft on an exhaust side, and therefore, it is possible to ensure such stiffness as to compensate for an excess in weight and to improve valve operating characteristics of a valve system.
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Nagano Shuji
Oka Toshihiko
Tokuhisa Masanori
Birch & Stewart Kolasch & Birch, LLP
Eshete Zelalem
Mitsubishi Jidosha Engineering Kabushiki Kaisha
Mitsubishi Jidosha Kogyo Kabushiki Kaisha
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