Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Patent
1985-12-18
1987-11-24
Lazarus, Ira S.
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
123 9017, 123 9018, F01L 134, F01L 110, F01L 118
Patent
active
047081015
ABSTRACT:
There is provided an apparatus for driving intake and exhaust valves (12) of an internal combustion engine. The apparatus comprises a valve lift controlling means (16) connected to the valves to control the lift of the valves in response to the engine operating conditions, valve driving cams (13) fixed on a cam shaft (14) and being in contact with the valve lift controlling means (16), and a phase controlling means (23) arranged on the cam shaft (14) to control the relative rotational phase of the valve driving cams, i.e., the open and close timing of the valves (12) in response to the engine operating conditions.
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Hara Seinosuke
Kato Manabu
Matsumoto Yasuo
Miisyo Kazuyuki
Ofuji Hiromichi
Lazarus Ira S.
Nissan Motor Co,. Ltd.
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