STRUCTURE OF RADIAL TURBINE SCROLL AND BLADES

摘要

PURPOSE: Structure of a radial turbine scroll and blades is provided to improve the turbine efficiency by reducing flow loss of the turbine blade and suppressing increase in a loss of a scroll passage. CONSTITUTION: In structure of a radial turbine scroll(4) and turbine blades(3), an actuating gas flows in the radial direction into the blades of a turbine rotor disposed inside the scroll through the scroll formed in a turbine casing(1), and the actuating gas is exhausted in the axial direction after rotating the turbine rotor. A scroll width ratio between the width(delta R) in the radial direction and the width(B) in the direction of the rotating axial core(20) ranges from delta R/B=0.3 to 0.7.