| 摘要 |
<p>A powertrain for a vehicle includes a flywheel 10 mounted in a vacuum or other isolation chamber 18. A magnetic coupling is used for selective connection to the flywheel 10. A first part of said magnetic coupling is located within the isolation chamber 18 and a second part is located outside the isolation chamber, thereby avoiding he need for a direct mechanical coupling, e.g. an input shaft, into the isolation chamber. The chamber 18 for the flywheel may be a vacuum chamber. The coupling is typically releasable by axial movement of an associated part along a splined connection 32 to weaken the magnetic field between opposing discs 22, 24 or concentric tubular portions of the coupling (50, 52 see fig 4).</p> |
