<div class="htmlview paragraph">Recovery of energy normally lost in engine exhaust is an attractive way to increase overall engine efficiency. A turbo-hydraulic exhaust power recovery system offers high efficiency, high reliability and low overall system cost. Prime applications would be heavy-duty turbo-diesels with a displacement of 6 liters and above.</div> <div class="htmlview paragraph">Based on years of operational experience with hydraulic turbine driven supercharging (H/S) systems, described in <span class="xref">Ref. 1</span>, <span class="xref">2</span> and <span class="xref">3</span>, Kapich Engineering has studied a novel turbo-hydraulic exhaust power recovery system. The conclusion is that such system is economical and practical.</div> <div class="htmlview paragraph">Potential for improving the net fuel consumption of heavy-duty turbo-diesel vehicles is estimated to be as high as 10%.</div>