Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Patent
1993-10-06
1995-07-25
Yuen, Henry C.
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
123 904, 74559, F01L 134, F01L 118
Patent
active
054352762
ABSTRACT:
A main rocker arm driven by a first cam, and a sub-rocker arm driven by a second cam larger than the first cam, are supported adjacent to each other. A sliding member which moves together with the sub-rocker arm, and a contact piece which comes into contact with the sliding member according to the slide position of the sliding member, are provided on the main rocker arm. The sliding member moves between a position where it is in contact with the contact piece and a position where it is not in contact with the contact piece according to the engine running conditions. The sliding member and contact member are constructed of iron or an iron alloy, while the main rocker arm is constructed of aluminum or an aluminum alloy. The construction of the cam change-over mechanism is therefore rendered lightweight, and machining of the main rocker arm is rendered facile.
REFERENCES:
patent: 4203397 (1980-05-01), Soeters, Jr.
patent: 5046462 (1991-09-01), Matayoshi et al.
patent: 5080054 (1992-01-01), Nakamura
patent: 5183015 (1993-02-01), Morita et al.
patent: 5239952 (1993-08-01), Morita
patent: 5297516 (1994-03-01), Hara
patent: 5301636 (1991-04-01), Nakamura
patent: 5333579 (1994-08-01), Hara et al.
patent: 5347962 (1994-09-01), Nakamura et al.
Goto Teturou
Morita Shoji
Nakamura Makoto
Takemura Siniti
Yamakawa Yukio
Kabushiki Kaisha Unisia Jecs
Lo Weilun
Nissan Motor Co,. Ltd.
Yuen Henry C.
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