Waste gas volume regulation type turbo charger

The utility model provides a waste gas volume regulation type turbo charger, waste gas volume adjusting device wherein comprises solid fixed ring and shift ring along turbine central line axial sliding fit, gu the nozzle cascade collar extension department that fixed ring by the concentric ring body of upper and lower parallel with evenly just with revolving to arranging that a plurality of blade an organic wholes between two ring bodies constitute, is fixed in turbine shroud, the uide bushing of shift ring is fixed with the regulation pole along the internal collar extension slide steering sliding fit of runner band on the outer loop of uide bushing one end. Solid fixed ring mounting structure is simple with manufacturing process among this technical scheme, and the location is reliable, and shift ring and solid fixed ring machinery cooperate the required precision far below prior art's high accuracy requirement, realize easily that also make the solid fixed ring who has leaf structure can adopt the manufact