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London & North Western Railway Society
Glossary for the LNWR Society

Glossary Results for Word "Combustion Chamber"

Combustion Chamber When discussing railway locomotives, this refers to an area within the boiler where gases are burnt, or combusted. This normally takes place inside the fireboxExplain 'Fire Box'. Some LNWR Locomotives (e.g. the Greater BritainExplain 'Greater Britain 2-2-2-2 Locomotive Class' and John HickExplain 'John Hick 2-2-2-2 Locomotive Class' classes) had an additional combustion chamber part-way along the boiler which was intended to re-ignite unburnt matter, thereby releasing additional energy and reducing smoke. In reality it is unlikely that re-ignition actually occurred and it necessitated having four troublesome tube platesExplain 'Tube Plate' in each boiler instead of the normal two.