Pump device
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
Mar 18, 2025
Grant Date -
Apr 4, 2024
app pub date -
Sep 20, 2023
filing date -
Sep 20, 2023
priority date (Note) -
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status (Latency Note)
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Abstract
An impeller of a pump device includes a vane wheel fixed to a flange portion of a rotor member. The vane wheel includes a plurality of vane portions protruding from a disc portion opposed to the flange portion in an axial direction. At a tip end of each vane portion, a rib that is inserted into a fixing groove provided in the flange portion is provided. A gap in the axial direction is provided between a tip end of an inner peripheral portion including an end portion on an inner side in a radial direction of the rib and a bottom surface of the fixing groove, and a welded portion welded to the fixing groove is provided at a tip end on another side in the axial direction of an outer peripheral portion including an end portion on an outer side in the radial direction of the rib.
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