Close Coupled Series Turbine Mounting

摘要

Method and apparatus for close coupled mounting of a pair of series connected turbines by axially aligning and abutting the axial outlet of one turbine against the axial inlet of the other turbine with a seal surrounding the turbine junction and with tie rods extending between radially projecting apertured ears of the turbines securing the turbines together and supporting the turbines on a generally U-shaped mounting bracket having spaced apart flanges engaging the tie rods. An air baffle partitions the space containing the two turbines into two air plenums to prevent hot air exhausted by the larger turbine from entering the air inlet to the turbine impellers, and an indicator provides a perceptible indication that the filter is becoming blocked.