Eaton Dumps HLA Hybrid Hydraulic System

Eaton Dumps HLA Hybrid Hydraulic System

Eaton quietly suspends its Hydraulic Launch Assist hybrid hydraulic drive system.

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Eaton recently discontinued its Hydraulic Launch Assist system, which combined a hydrostatic hydraulic drive with a mechanical drive running in parallel. The hydraulic drive engaged when a heavy vehicle encountered frequent starting and stopping (as in refuse collection routes), whereas the mechanical drive engaged for longer-distance and highway travel.

Eaton's Hydraulic Launch Assist hydraulic hybrid system was said to offer energy recovery of up to 80%, and fuel savings on the order of 4 to 5 gal/day for refuse trucks and a retrun-on-investment of 2½ to 5 years.

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