A
Lemprex ejector is a type of
Steam locomotive exhaust system developed by noted
Argentinian locomotive engineer
Livio Dante Porta (who died in 2003). In a
steam locomotive,
draft is produced in the
firebox by exhausting the steam coming from the cylinders out the chimney. The Lemprex exhaust will deliver improved draughting capacity over traditional exhaust systems. However development is only at an early stage. Some work was undertaken in
Brazil and is expected to be completed in Argentina by Ing. Shaun McMahon.