TURBINE OUTLET DEVICE Russian patent published in 2013 - IPC F01D25/30 

FIELD: machine building.

SUBSTANCE: turbine outlet device comprises hollow aerodynamic shaped posts. Said posts are located in turbine wheel space behind turbine final stage impeller and secured at position whereat midlines of section outlet section are directed along turbine lengthwise axis. Outlet device is equipped with shaped blades with chord length making 1/3-2/3 of hollow post chord. Blades are fitted between the posts and secured at position whereat midlines of inlet sections are turned in direction of impeller rotation through the angle of one to ten degrees to its lengthwise axis. Midlines of their outlet sections are directed along turbine lengthwise axis while midlines of shaped post inlet sections are turned in direction of turbine impeller rotation through the angle to 20-40 degrees to turbine lengthwise axis. The number of blades arranged between said posts is selected proceeding from the relationship between the spacing between posts and grate density. Note here the grate density is defined as the relation of blade chord length to blades spacing and makes 1 to 3.

EFFECT: higher efficiency, rules our swirling of exhaust flow.

2 dwg