Integrated impeller manufacturing method

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11103945
APP PUB NO 20190105722A1
SERIAL NO

16214905

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Abstract

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A method of manufacturing an integrated impeller has a first shroud forming a bottom portion, a second shroud forming a lid portion, a hub formed at the center portion of the first shroud, and blades that section a flow path which is formed between the first shroud and the second shroud and through which a fluid flows. This method includes forming a flow path on the inner circumferential side of the impeller; and forming a flow path on the outer circumferential side of the impeller. The step of forming the flow path on the outer circumferential side of the impeller has the steps of: while rotating the linear electrode having a tip-end part and a base-end part about a longitudinal direction axis thereof, applying electric discharge machining to the first shroud; applying electric discharge machining to the second shroud; and applying electric discharge machining to the blade.

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Patent Owner(s)

Patent OwnerAddress
HODEN SEIMITSU KAKO KENKYUSHO CO LTDINNOTECH BUILDING 11F 3-17-6 SHINYOKOHAMA KOHOKU-KU YOKOHAMA-SHI KANAGAWA 2228580 ?2228580

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Iwata, Takanori Chiba, JP 5 4
Ota, Toshiaki Chiba, JP 16 108
Watanabe, Isao Chiba, JP 182 2068

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