Method of assembling a pluralstage axial compressor

Abstract

Abstract For assembly of a plural stage axial compressor in which a blade carrier divided into plural parts along an axial plane and provided with a plurality of variable pitch blades is to be assembled to a pitch adjusting sheath, likewise divided into plural parts along an axial plane, with pins on adjusting levers of the blades being engaged in grooves on the inside of the sheath, there is disclosed a method comprising the steps of supporting a separate part of the carrier and a separate part of the sheath coaxially, rotating those separate parts with respect to each other about their common axis to engage the pins on the separate carrier part in the grooves of the separate sheath part, and fastening the separate parts together. There is also disclosed a fixture for use in assembling together such a blade carrier and sheath, this fixture comprising a ring demountable along a diameter into two parts and having two plane, parallel and coaxial annular surfaces, one for support of one blade carrier part and the other for support of one sheath part, and two cylindrical surfaces coaxial with each other and with those annular surfaces, one for centering of the blade carrier part and the other for centering of the sheath part.

Inventors

• 👤 Walter Sprenger

Bibliographic Details