Antonov Applying Dual-Speed Drives to Engine Accessories

The Antonov dual-speed front end accessory drive uses a planetary gear set to enable either a direct of step-up ratio. Click to enlarge. Antonov Automotive Technologies, which is currently offering a simple dual-speed supercharger for downsizing engines to reduce fuel consumption and CO2 emissions (earlier post), is developing other applications of the dual-speed drive unit for alternators, water and air-conditioning pumps, and other engine ancillaries to allow them to operate more often in t