A Lemprex ejector is a type of Steam locomotive exhaust system developed by noted

Argentinian Argentines (mistakenly translated Argentineans in the past; in Spanish ( masculine) or ( feminine)) are people identified with the country of Argentina. This connection may be residential, legal, historical or cultural. For most Argentines, ...

locomotive engineer

Livio Dante Porta Livio Dante Porta (21 March 1922 – 10 June 2003) was an Argentine steam locomotive engineer. He is particularly remembered for his innovative modifications to existing locomotive systems in order to obtain better performance and energy effici ...

(d. 2003). The name is a stylization of LeMaitre Porta Exhaust. In a steam locomotive,

draft Draft, The Draft, or Draught may refer to: Watercraft dimensions * Draft (hull), the distance from waterline to keel of a vessel * Draft (sail), degree of curvature in a sail * Air draft, distance from waterline to the highest point on a vesse ...

is produced in the

firebox Firebox may refer to: *Firebox (steam engine), the area where the fuel is burned in a steam engine *Firebox (architecture), the part of a fireplace where fuel is combusted *Firebox Records Firebox Records was a Finnish record label based in S ...

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 Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

during the late 1980s and early 90s. During more recent years locomotive engineer Shaun T. Mc Mahon has continued the development of this exhaust system in Argentina and other countries around the World, current development work being focussed upon ex FCGR 12E No.3925 and ex FCGR 8A No.3351.

External links

LemPor Exhaust
on The Ultimate Steam Page. Steam locomotive technologies Steam locomotive exhaust systems Locomotive parts {{rail-transport-stub