| 摘要 |
<p>A cooling fan (20) has a central plate (19) clamped between vibration- insulating friction rings (21) by plates (17) of which the inner is coupled by resilient straps (22) to a clutch plate (24) engageable with a drive flange (5) of shaft (3) upon energization of a stationary coil (10) housed in a member (8, 9) mounted, like the fan, on the shaft via bearings. The shaft is secured by plate (2) to a diesel engine crankshaft (1). Locking plates (25) can be positioned to couple flange (5) to plate (24) in the event of an electrical failure. <IMAGE></p> |
