| 摘要 |
<p>A camshaft wheel (10) adapted to be fitted to an engine camshaft (12) includes a plurality of indentations (14,16,18,20) providing a plurality of equally spaced edges (22,24) and a synchronising edge (28). Each of the edges (22,24) is adapted in use to indicate that an associated piston is approaching top dead centre. The camshaft wheel (10) can be used as a backup facility for a crankshaft wheel when the crankshaft wheel or any of the components associated with it are faulty or otherwise unreliable. The camshaft wheel (10) is otherwise used in conjunction with the crankshaft wheel (52) to determine engine phase as soon as crankshaft signal synchronisation occurs. <IMAGE></p> |
