A TURBINE ENGINE

摘要

A turbine engine comprising a housing in which a rotor (14) is rotatably mounted, the housing is of a split casing construction including a centre casing sandwiched between a pair of outer casings, namely an inlet outer casing and an outlet casing. The rotor (14) is shaped circular in profile and includes three working surfaces generally defined by a peripheral surface (32) and a pair of opposing side surfaces (34, 36) respectively. The peripheral surface (32) of the rotor (14) which acts as a first stage of the turbine engine includes a plurality of circumferentially spaced and generally axially directed ribs in the form of a series of arcuate flutes such as (38). The rotor (14) also includes a plurality of angularly spaced and radially extending rotor blades (40) which in transverse cross-section are aerofoil shaped with at least a portion of the concave or generally flat and convex surfaces of each of the blades (40) defining two further working surfaces of the rotor (14).