High Efficiency, Compact, and Cost Effective Variable Speed Engine Accessory Drive System

Supplying fuel to vehicles deployed in the field is a significant hurdle requiring complex logistics and specialized equipment. One avenue for reducing the amount of fuel needed is a better utilization of engine power output by improving the operational performance of engine accessory systems such as the cooling fan, alternator, AC compressor, and various pumps. Streamline Automation proposes a development program designed to explore the feasibility of achieving optimal accessory operation with an ultra-compact, continuously variable mechanical drive. Phase I efforts will concentrate on providing estimates of relative improvements in engine performance, concept development and experimental demonstration of the concept in a laboratory setting. During Phase 2, our efforts will focus on demonstrating two system prototypes compatible with class 4-8 truck engines: one designed for the engine cooling fan and the other for the air conditioning compressor. At the end of Phase 2, the prototypes will be delivered to the Navy for independent testing in a relevant environment.