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公开(公告)号:US11542952B2
公开(公告)日:2023-01-03
申请号:US17142949
申请日:2021-01-06
Applicant: DENSO CORPORATION
Inventor: Yuya Suzuki , Sho Kosaka , Shuzo Oda , Shinichiro Hirai
IPC: F04D29/28
Abstract: A centrifugal blower includes a centrifugal fan and a separation cylinder. The centrifugal fan has a separation plate. The separation cylinder is disposed inward of the blades in the radial direction of the centrifugal fan. The separation plate has an inner end surface extending from the one side to the other side in the axial direction at a position of an inner end in the radial direction. The separation cylinder has a separation cylinder end surface extending from the one side to the other side in the axial direction at a position of an end on the other side in the axial direction. A height of one of the separation cylinder end surface and the inner end surface in the axial direction is larger than a height of the other of the separation cylinder end surface and the inner end surface in the axial direction.
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公开(公告)号:US11421706B2
公开(公告)日:2022-08-23
申请号:US17129652
申请日:2020-12-21
Applicant: DENSO CORPORATION
Inventor: Yuya Suzuki , Sho Kosaka , Shuzo Oda , Shouichi Imahigashi
Abstract: A centrifugal blower includes: a centrifugal fan having plural blades arranged around a fan axis and a separation plate to blow out air in a radial direction after being sucked from one side in an axial direction; a fan casing housing the centrifugal fan; a partition plate that defines a first air passage and a second air passage arranged on the other side of the first air passage in the axial direction; and a separation cylinder arranged inside the plural blades in the radial direction. The separation cylinder expands in the radial direction as extending toward the other side in the axial direction, and is shaped to extend outward in the radial direction obliquely to the axial direction at the other end position of the separation cylinder positioned at the other end in the axial direction.
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