| 摘要 |
An electromagnetic-brake cooling structure of a phase-variable device having an electromagnetic brake means ( 40 ) and varying the phase of a camshaft, wherein engine oil in an oil sump ( 74 ) on the radial inner side of a clutch case ( 60 ) led to the relative sliding surfaces of a friction material ( 66 ) and a rotary drum ( 44 ) through a notch ( 61 ) provided in the clutch case ( 60 ) at the front edge part of the inner peripheral wall of the clutch case ( 60 ), a notch ( 61 b) for leading oil to the front edge part of the clutch case outer peripheral wall ( 60 b), the oil on the relative sliding surfaces of the friction material ( 66 ) and the rotary drum ( 44 ) is discharged positively to the outside, and the circulation of the cooling oil is activated to increase the cooling effect of the sliding surface of the friction material ( 66 ). |
