Variable valve lift apparatus

Details Variable valve lift apparatus Variable valve lift apparatus

2008-05-30

2011-11-15

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

Reexamination Certificate

active

08056517

ABSTRACT:
A variable valve lift apparatus of an engine includes: a control shaft; a driving arm rotatable around the control shaft by a cam of a camshaft; a first rocker arm rotatable around the control shaft, that is operated by the driving arm so as to drive a first valve through a first swing arm; a second rocker arm rotatable around the control shaft, that is operated by the driving arm so as to drive a second valve through a second swing arm; and a mediating device rotatable around the control shaft, that transmits a movement of the driving arm to the first and second rocker arms.

REFERENCES:
patent: 7082911 (2006-08-01), Ezaki et al.
patent: 7252058 (2007-08-01), Tashiro
patent: 7451729 (2008-11-01), Sugiura et al.
patent: 7721691 (2010-05-01), Tateno
patent: 2006/0249109 (2006-11-01), Ezaki et al.
patent: 2009/0277408 (2009-11-01), Tateno et al.
patent: WO 2007058092 (2007-05-01), None

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