Maurice Lemaître (Maurice Édouard Jean Joseph Ghislain Lemaître; born
Charleroi
Charleroi ( , , ; wa, Tchålerwè ) is a city and a municipality of Wallonia, located in the province of Hainaut, Belgium. By 1 January 2008, the total population of Charleroi was 201,593.
, 6 July 1898; died
Etterbeek
Etterbeek ( French: ; Dutch: ) is one of the 19 municipalities of the Brussels-Capital Region, Belgium. Located in the eastern part of the region, it is bordered by the municipalities of Auderghem, the City of Brussels, Ixelles, Schaerbeek, Wolu ...
25 December 1974) was a
Belgian
Belgian may refer to:
* Something of, or related to, Belgium
* Belgians, people from Belgium or of Belgian descent
* Languages of Belgium, languages spoken in Belgium, such as Dutch, French, and German
*Ancient Belgian language, an extinct language ...
mechanical engineer who developed a
steam locomotive exhaust system
The steam locomotive exhaust system consists of those parts of a steam locomotive which together discharge exhaust steam from the cylinders in order to increase the draught through the fire. It usually consists of the blastpipe (or first stage n ...
first used by the Nord-Belge railway company, a subsidiary of the French-owned
Lemaître exhaust
The Lemaître exhaust is a type of steam locomotive exhaust system developed by the Belgian engineer Maurice Lemaître.
Construction
The Lemaître exhaust featured a blastpipe with 5 nozzles in a circular pattern exhausting up a large-diameter ch ...
(''échappement Lemaître'') – which featured a
blastpipe The blastpipe is part of the exhaust system of a steam locomotive that discharges exhaust steam from the cylinders into the smokebox beneath the chimney in order to increase the draught through the fire.
History
The primacy of discovery of the ...
with five nozzles in a circular pattern exhausting up a large-diameter chimney, plus a variable-area nozzle exhausting up the centre – produced an efficiency gain of around 10%.Website: ''Steamindex – Continental engineers'' /ref>
The design was later improved by the Argentine 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 ...
, who devised the
Lempor The Lempor ejector is a steam locomotive exhaust system developed by noted Argentina, Argentine locomotive engineer Livio Dante Porta. The ejector's name is a portmanteau of the names of Porta and Belgian locomotive engineer Maurice Lemaître (mecha ...
(a
portmanteau
A portmanteau word, or portmanteau (, ) is a blend of wordsLemprex exhaust systems.