Reply To: Test Rigs for Exhaust Systems

[Chris Corney]

Hi John,

It’s difficult to imagine what is being described, just from the abstract, but it might help locomotives with excessive smokebox pressure pulsations. It also reminds me of the drawing of Porta’s Lemprex, with the auxiliary chambers to smooth out the flow. My feeling is that it would be less effective in terms of basic draughting, and there are other options we could consider.