The figure demonstrates the vacuum clutch system. This type of clutch employs the prevailing vacuum inside the motor manifold to operate the clutch. The vacuum clutch includes a reservoir, non-return valve, vacuum cylinder with piston, and solenoid valve.  A car air con compressor that has a magnetic clutch. HowStuffWorks There https://clutch-kereta10752.blog-mall.com/33615332/details-fiction-and-clutch-kereta