TURBINE

摘要

PURPOSE: A turbine is provided to disturb the pressure fields generated by vanes by forming a discontinuity in a trailing edge or a turbine blade and to reduce vibrations which cause damage to the turbine blade. CONSTITUTION: A turbine is composed of a turbine wheel formed with radial blades and supported in a housing(1) to rotate about an axis(12); an annular inlet passageway(4) extending radially inward to the turbine wheel; and an annular array of vanes(10) extending across the inlet passageway. The inlet passageway is defined between first and second annular walls. Each vane has a trailing edge(10a) extending adjacently to turbine wheel blades(11) and each trailing edge of the vanes deviates from a straight line over at least a portion of the length formed by the ends. The trailing edge of each vane has a discontinuity positioned in the middle side of the ends.