| 摘要 |
A variable cam timing assembly (10) and method for an internal combustion engine of a motor vehicle includes a cam phaser (22) connected between an inner camshaft (12a) and an outer camshaft (12b) of a concentric camshaft (12). An axial face rotor seal (14) permits adjustment for perpendicularity and axial misalignment of the inner and outer camshafts (12a, 12b), while permitting a torsionally stiff coupling to be used between the cam phaser (22) and the inner and outer camshafts (12a, 12b) of the concentric camshaft (12). The axial face rotor seal (14) can be formed as separate rotor face seals (14a, 14b), vane tip seals (40), and partition member seals (44), and/or can be formed as a combination with abutting end (18a, 18b) of rotor face seals (14a, 14b) and/or overlapping ends (18e, 18f) of rotor face seal (14a, 14b) defining integral vane tip seal portions (40a, 40b) and/or integral partition member seal portions (44a, 44b). |
