公开(公告)号：US10590938B2

公开(公告)日：2020-03-17

申请号：US15533175

申请日：2015-12-02

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Kyoung-Yong Lee ,  Young Seok Choi ,  Jin Hyuk Kim ,  Uk Hee Jung

IPC: F04D23/00 ,  F04D29/66 ,  F04D5/00 ,  F04D29/18

Abstract: Provided is a regenerative blower. According to an illustrative embodiment of the present invention, the regenerative blower comprises an impeller comprising a plurality of blades disposed spaced apart in the circumferential direction, wherein, in the plurality of blades, each blade gap is arranged at an incremental angle (ΔΘi).

公开(公告)号：US10247199B2

公开(公告)日：2019-04-02

申请号：US15104977

申请日：2014-11-24

Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY

Inventor： Kyoung-Yong Lee ,  Young Seok Choi

IPC: F04D29/42 ,  F04D29/28 ,  F04D25/08

Abstract: Disclosed is a multi-volute sirocco fan (multiblade fan). The present invention relates to a multi-volute sirocco fan configured to discharge fluid into several directions while using one motor and one fan. The sirocco fan according to the present invention comprises: a driving motor; a fan connected to a rotation shaft of the driving motor to thus be rotated therewith, the fan having a plurality of vanes arranged and installed in a cylindrical shape along the circumferential direction thereof; and at least two stacked volutes in the center of which the fan is arranged and installed and which guide the fluid while the cross-sectional area formed by the upper and lower surfaces, side surfaces thereof and the outer circumferential surface of the fan is linearly increased.