| 摘要 |
<p>A single overhead camshaft multi-valve internal combustion engine wherein individual rocker arms 123, 133, 134, 135 operate each of at least three intake valves 99, 101, 102 and two exhaust valves 72 so as to permit adjustment in the lift and timing of the respective valves. A spark plug 83 well is formed in the cylinder head between the exhaust valves to provide accessibility and maintain a compact assembly. Various bearing arrangements are disclosed for journaling the camshafts. <IMAGE></p> |
