Lempor ejector
The Lempor ejector is a Steam locomotive exhaust system developed by noted Argentine locomotive engineer Livio Dante Porta. In a steam locomotive, draft is produced in the firebox by exhausting the steam coming from the cylinders out of the chimney, or also by a blower. The LemPor exhaust delivers a 100% improvement in draughting capacity over traditional exhaust systems. The Lempor Ejector also ejects differently to the conventional blastpipe; as one cylinder ejects it creates a vacuum in the other cylinder, thereby requiring less power to drive the piston. Overall the Lempor ejector increases locomotive power by about 40%. The name is a combination of the names of Jean Lemaître and Porta.
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