| 摘要 |
<p>A valve train for an internal combustion engine comprises a camshaft (14) and a variable cam phaser (12) connected to said camshaft (14) for driving the latter. The variable cam phaser (12) comprises: an input shaft (24) rotationally coupled to a crankshaft drive member (20); and an output shaft (26) rotationally coupled to the camshaft (14) and coaxial with the input shaft (24). Electrically operated adjusting means drivingly connect the input and output shafts (24; 26) enabling the input and output shafts (24; 26) to be selectively, angularly adjusted while maintaining driving engagement therebetween. The input and output shafts (24; 26) are coupled to the drive member (20) and camshaft (14) via respective, rotationally stiff, flexible coupling means (70, 72; 66, 68).</p> |
