Turbo compressor, turbo refrigerator, and method of manufacturing turbo compressor
AssigneeIHI Corporation
InventorKazuaki Kurihara
Life of this patent
Estimating the term…
Abstract
A turbo compressor includes an impeller fixed to one end portion of a rotation shaft by a predetermined fastening member, and a regulating portion which is used to regulate rotation of the rotation shaft during fastening of the fastening member and is provided in the other end portion of the rotation shaft. The regulating portion is formed as a recessed portion recessed from an end surface of the other end portion of the rotation shaft.
Claims8
A turbo compressor comprising:
- an impeller fixed to one end portion of a rotation shaft by a predetermined fastening member;
- and
- a regulating portion which is used to regulate rotation of the rotation shaft during fastening of the fastening member and is provided in the other end portion of the rotation shaft,
- wherein the regulating portion is formed as a recessed portion recessed from an end surface of the other end portion of the rotation shaft, wherein a plurality of the recessed portions are provided.
A method of manufacturing a turbo compressor which includes an impeller fixed to one end portion of a rotation shaft by a predetermined fastening member, and a regulating portion which is used to regulate rotation of the rotation shaft during fastening of the fastening member and is provided in the other end portion of the rotation shaft, the method comprising:
- a first manufacturing step of holding a casing of the turbo compressor using a predetermined holding stand;
- a second manufacturing step of installing the rotation shaft in the casing so as to be rotatable;
- a third manufacturing step of connecting a rotation regulating member that regulates the rotation of the rotation shaft by cooperating with the regulating portion, to the regulating portion formed as a recessed portion recessed from an end surface of the other end portion of the rotation shaft;
- and
- a fourth manufacturing step of fixing the impeller to the one end portion of the rotation shaft using the fastening member in a state where the rotation regulating member is locked by a part of the holding stand.
Dependencies are inferred from the claim text.