Adjustable vane system for an axial flow rotor housing of an agricultural combine

摘要

A adjustable vane system for an axial-flow, rotary combine housing (36) that incorporates at least one flat wall section (185) as part of the otherwise cylindrical or oblong, curved housing cover (180), and adjustable vanes (188) having flat bases (189a) that are angularly adjusted on the surface of the flat wall section (185). The housing includes fixed vanes on a curved portion (184) of the housing cover (180) that have a lead ends, in a direction of circumferential crop movement, substantially in registry with trailing ends (188b) of the adjustable vanes (188).