The engineers incorporated developments proposed by L.D. Porta, including GPCS, Lempor exhaust, an improved spark arrestor, lightweight multi-ring articulated piston valves, improved valve events and improved mechanical lubrication.
Chapelon's work lived on in the work of his friend and protégé Livio Dante Porta of Argentina, and others, and he was accorded the rare honour for a foreign railwayman of having a British Rail Class 86 electric locomotive named for him.
They have all benefited from the application of modern steam principles advocated by Livio Dante Porta.
The Kylchap was not the only advanced steam locomotive exhaust: another design, the Lemaître, had some success in France and England; noted Argentinian engineer Livio Dante Porta designed several, the Kylpor, Lempor and Lemprex designs; and several U.S. railroads including the Norfolk & Western used a concentric nozzle known as the waffle iron exhaust.
A Kylpor ejector is a type of steam locomotive exhaust system developed by noted Argentine locomotive engineer Livio Dante Porta.
A Lemprex ejector is a type of Steam locomotive exhaust system developed by noted Argentinian locomotive engineer Livio Dante Porta (who died in 2003).
This type of intensive maintenance was studied by steam locomotive designers such as Andre Chapelon, Livio Dante Porta, and David Wardale.
The rebuilding took place at the Salt River Works in Cape Town and was based on the principles developed by Argentinian mechanical engineer L.D. Porta.
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