Fluid pump impeller
Number of patents in Portfolio can not be more than 2000
United States of America
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Nov 12, 2024
Grant Date -
Aug 29, 2024
app pub date -
Jul 16, 2021
filing date -
Jul 16, 2021
priority date (Note) -
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status (Latency Note)
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Abstract
An impeller (1) of a fluid pump according to the present invention comprises: an impeller body (10) having a first shroud (20) and a plurality of vanes (30) provided on the first shroud (20); and a second shroud (50) bonded to the impeller body (10) and arranged opposed to the first shroud (20) in a central axis direction across the plurality of vanes (30). The first shroud (20) has a boss part (40) protruding in the central axis direction. The second shroud (50) has a central hole (53) through which the boss part (40) is inserted in the central axis direction. By a combination of a recessed first groove part (41) formed on an outer circumferential surface of the boss part (40) and a recessed second groove part (54) formed on an inner circumferential surface of the central hole (53), a balance hole (B) penetrating in the central axis direction is constituted.
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