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公开(公告)号：US20220315181A1
公开(公告)日：2022-10-06
申请号：US17699309
申请日：2022-03-21
发明人： Shigeki SENOO , Shinichi ISOBE , Wataru YAMADA , Takehiko NISHIDA , Takuyoshi YAMADA , Kazuki HOSONO , Yoshitomo NODA , Takuzo SHIGIHARA , Hiroki TAKEDA , Yuichi SEKINE
摘要： A fluid machine includes: a shaft portion extending in an axis direction; a shroud provided to surround the shaft portion, and forming a flow path between the shroud and the shaft portion, the flow path having one side in the axis direction serving as an upstream side and another side in the axis direction serving as a downstream side; a propeller provided rotatably around the axis between the shaft portion and the shroud; a motor provided in the shroud and configured to rotationally drive the propeller; and a bearing apparatus provided only to the shaft portion, out of the shroud and the shaft portion, and rotationally supporting the propeller.
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公开(公告)号：US20220315185A1
公开(公告)日：2022-10-06
申请号：US17703093
申请日：2022-03-24
发明人： Shigeki SENOO , Shinichi ISOBE , Wataru YAMADA , Takehiko NISHIDA , Takuyoshi YAMADA , Kazuki HOSONO , Yoshitomo NODA , Hiroki TAKEDA , Yuichi SEKINE
摘要： A fluid machine includes: a shaft portion extending in an axis direction; a shroud provided to surround the shaft portion and having a diameter decreasing from an upstream side on one side in the axis direction toward a downstream side on another side in the axis direction, a flow path being formed between the shroud and the shaft portion and having a flow path cross-sectional area decreasing toward the downstream side; a propeller rotatably provided about an axis between the shaft portion and the shroud and configured to pump a fluid from the upstream side toward the downstream side; and a motor provided to correspond to the propeller, the motor including a rotor having a ring-like shape and being fixed to an outer circumference portion of the propeller and accommodated in the shroud and a stator having a ring-like shape surrounding the rotor and being fixed in the shroud, in which the motor is a conical motor in which diameters of the rotor and the stator decrease from the upstream side toward the downstream side.
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公开(公告)号：US20220315184A1
公开(公告)日：2022-10-06
申请号：US17702106
申请日：2022-03-23
发明人： Shigeki SENOO , Shinichi ISOBE , Wataru YAMADA , Takehiko NISHIDA , Takuyoshi YAMADA , Kazuki HOSONO , Yoshitomo NODA , Hiroki TAKEDA , Yuichi SEKINE
摘要： A fluid machine includes: a shaft portion extending in an axis direction; a shroud provided to surround the shaft portion, and forming a flow path between the shroud and the shaft portion, the flow path having one side in the axis direction serving as an upstream side and another side in the axis direction serving as a downstream side; a first propeller provided rotatably around the axis between the shaft portion and the shroud; a second propeller provided rotatably around the axis between the shaft portion and the shroud on the downstream side of the first propeller; an outer periphery driving motor provided in the shroud and configured to rotationally drive the first propeller; and an inner periphery driving motor provided in the shaft portion and configured to rotationally drive the second propeller in a direction opposite to the rotational direction of the first propeller.
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公开(公告)号：US20220315183A1
公开(公告)日：2022-10-06
申请号：US17700724
申请日：2022-03-22
发明人： Shigeki SENOO , Shinichi ISOBE , Wataru YAMADA , Takehiko NISHIDA , Takuyoshi YAMADA , Kazuki HOSONO , Yoshitomo NODA , Hiroki TAKEDA , Yuichi SEKINE
摘要： A fluid machine includes: a shaft portion; a shroud having an inside surface with a diameter decreasing from an upstream side toward a downstream side, a flow path being formed between the shroud and the shaft portion and having a flow path cross-sectional area decreasing toward the downstream side; a propeller rotatably provided about an axis between the shaft portion and the shroud and configured to pump a fluid from the upstream side toward the downstream side; and a motor provided to correspond to the propeller and including a rotor having a ring-like shape fixed to an outer circumference portion of the propeller and accommodated in the shroud and a stator having a ring-like shape surrounding the rotor and fixed in the shroud, in which a plurality of the propellers are provided to be spaced apart in the axis direction, the motors are provided in an identical number to the propellers to correspond to each of the propellers, and of a plurality of motors, the rotor of the motor positioned more on the downstream side has a smaller average outside diameter.
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