Arrangement for the attachment of distributor sectors supporting vanes around an arc of a circle

摘要

The distributor sectors ( 25 ) of a turbomachine are secured adjacent to a casing ( 31 ) with sealing sectors ( 32 ) alternating with them in the axial direction. The distributor sectors ( 25 ) are provided with force resistant faces ( 37; 39 ) through which forces exerted on the distributor sectors are transmitted to the casing. The inner surface of the casing ( 31 ) is smoother and is not fitted with any hooks; consequently, this casing ( 31 ) is less complicated to make and is less mechanically stressed to retain the 10 distributor sectors, and the distributor sectors may be installed by a purely axial movement.