| 摘要 |
PROBLEM TO BE SOLVED: To provide a phase changing device for an engine which prevents change in the phase angle of a drive intermediate rotor and a camshaft due to disturbances, while preventing wear of a groove shape guide inner circumference surface and generation of axial thrust force. SOLUTION: This phase changing device of the engine has a drive rotor, an intermediate rotor and a control rotor, arranged on a same axis around which the same can turn relatively, and the changes phase angle of the drive rotor and the intermediate rotor by controlling the control rotor. The device is provided with: a curved first guide groove on the control rotor inclined from a circumference having a center on a turning axis; an inclined guide groove on the intermediate rotor inclined to a radial direction; and a curved second guide groove on the drive rotor inclined from a circumference, having a center on the turning axis, and is provided with a phase conversion member comprising a longitudinal block part displacing the engaging first guide groove, a first slide member engaging with the inclined guide groove, and a second slide member inserted through a clearance groove of the intermediate rotor and engaging with the second guide groove. COPYRIGHT: (C)2009,JPO&INPIT
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