Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Patent
1987-10-14
1989-12-19
Dolinar, Andrew M.
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
123 9017, 123 9044, F01L 126
Patent
active
048875635
ABSTRACT:
Apparatus for controlling the operation of intake or exhaust valves of an internal combustion engine in which cam-driven rocker arms that operate the valves are selectively connected or disconnected for movement in unision or for independent movement in order to open and close the valves in accordance with the various modes of engine operation. Control of the valves is produced by the cooperative effect of hydraulic pressure and variable spring forces whereby more accurate valve operation over a greater number of engine operating modes is achieved.
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Ishida Atsushi
Konno Tsuneo
Dolinar Andrew M.
Honda Giken Kogyo Kabushiki Kaisha
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