Method of manufacturing impeller
AssigneeEbara Corporation
InventorsEsao YAMADA, Kentaro ORITA, Takashi YAMAKAWA
Life of this patent
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Abstract
A method of manufacturing an impeller, the method including: a step of forming a cover that is provided with a plurality of blades; a step of disposing a core on the cover such that the core is interposed between the blades; a step of disposing a hub on the blades, the hub being a plate on which grooves conforming to shapes of the blades are formed; and a step of welding the hub and the blades, wherein through-holes conforming to the shapes of the blades are provided on the core, such that the blades are fitted in the core when the core is disposed.
Claims20
A method of manufacturing an impeller, the method comprising:
- a step of forming a cover that is provided with a plurality of blades;
- a step of disposing a core on the cover such that the core is interposed between the blades;
- a step of disposing a hub on the blades, the hub being a plate on which grooves conforming to shapes of the blades are formed;
- and
- a step of welding the hub and the blades, wherein
- through-holes conforming to the shapes of the blades are provided on the core, such that the blades are fitted in the core when the core is disposed.
A method of manufacturing an impeller, the method comprising:
- a step of forming a hub that is provided with a plurality of blades;
- a step of disposing a core on the hub such that the core is interposed between the blades;
- a step of disposing a cover on the blades, the cover being a plate on which grooves conforming to shapes of the blades are formed;
- and
- a step of welding the cover and the blades, wherein
- through-holes conforming to the shapes of the blades are provided on the core, such that the blades are fitted in the core when the core is disposed.
A method of manufacturing an impeller, the method comprising:
- a step of forming a hub that is provided with a plurality of blades;
- a step of disposing a plurality of divided cores on the hub, such that each of the divided cores is disposed at each interspace of the adjacent blades;
- a step of disposing a cover on the hub and the divided plates;
- and
- a step of welding the cover and the blades.
A method of manufacturing an impeller, the method comprising:
- a step of forming a cover that is provided with a plurality of blades;
- a step of disposing a plurality of divided cores on the cover, such that each of the divided cores are disposed at each interspace of the adjacent blades;
- a step of disposing a hub on the cover and the divided cores;
- and
- a step of welding the hub and the blades.
Dependencies are inferred from the claim text.