Lemprex ejector - Wikipedia

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A Lemprex ejector is a type of steam locomotive exhaust system developed by noted Argentinian locomotive engineer Livio Dante Porta (d. 2003). The name is a stylization of LeMaitre Porta Exhaust.

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 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. ^{[citation needed]}

External links

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LemPor Exhaust on The Ultimate Steam Page.

v t e Locomotive design
Cab positioning Short hood / Long hood	Cab forward Sharknose Steeplecab Cab unit Hood unit Cowl unit Boxcab Dual Control Stand
Wheel arrangement	AAR wheel arrangement UIC classification Swiss classification Whyte notation
Valve gear types	Allan Baker Bagnall–Price Baguley Bulleid Caprotti Gab Gooch Gresley Hackworth Joy Kuhn slide Lentz Southern Stephenson Walschaerts
Bogie types	AAR type A switcher truck Arnoux system Articulated bogie Bissel truck Blomberg B Cleminson system Grovers bogie Jacobs bogie Krauss-Helmholtz bogie Mason Bogie Pony truck Radial steering truck Scheffel bogie Schwartzkopff-Eckhardt II bogie
Other running gear elements	Adams axle Axlebox Beugniot lever Carrying wheel Coupled wheel Driving wheel Equalising beam Gölsdorf axle Journal box Klien-Lindner axle Leading wheel Luttermöller axle Radial axle Railway tire Road–rail vehicle Trailing wheel Train wheel Wheelset
Exhaust system types	Giesl Kylchap Kylpor Lemaître Lempor Lemprex
Common exhaust system elements	Blastpipe Smokebox Chimney

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