| 发明名称 |
CONCENTRIC CAMSHAFT PHASER TORSIONAL DRIVE MECHANISM |
| 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). A torsional drive mechanism (14) connects between the cam phaser (22) and the inner camshaft (12a) for transmitting rotational torque. The torsional drive mechanism (14) permits adjustment for perpendicularity and axial misalignment of the inner and outer camshafts (12a, 12b), while maintaining a torsionally stiff coupling between the cam phaser (22) and one of the inner and outer camshafts (12a, 12b) of the concentric camshaft (12). The torsional drive mechanism (14) can be formed from one of a flexible shaft coupling (40), a transversely split driven gear (140), a transversely split sprocket ring gear (240), a transverse face spline gear (340), and a pin and slot combination drive (440). |
| 申请公布号 |
US2014158074(A1) |
申请公布日期 |
2014.06.12 |
| 申请号 |
US201214005354 |
申请日期 |
2012.03.14 |
| 申请人 |
Wigsten Mark;White David C.;Sisson James |
发明人 |
Wigsten Mark;White David C.;Sisson James |
| 分类号 |
F01L1/34 |
主分类号 |
F01L1/34 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. In a variable cam timing assembly (10) for an internal combustion engine of a motor vehicle having a cam phaser (22) connected between an inner camshaft (12a) and an outer camshaft (12b) of a concentric camshaft (12), the improvement comprising:
a torsional drive mechanism (14) connected between the inner camshaft (12a) and the outer camshaft (12b) of the concentric camshaft (12) for transmitting rotational torque therebetween, the torsional drive mechanism (14) permitting adjustment for perpendicularity and axial misalignment, while maintaining a torsionally stiff coupling between the cam phaser (22) and at least one of the inner and outer camshafts (12a, 12b) of the concentric camshaft (12).
|
| 地址 |
Lansing NY US |
