Invention Grant
- Patent Title: Ducted fan
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Application No.: US17634256Application Date: 2020-08-19
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Publication No.: US12025149B2Publication Date: 2024-07-02
- Inventor: Daisuke Ogasawara , Yusuke Makino
- Applicant: Nidec Corporation
- Applicant Address: JP Kyoto
- Assignee: NIDEC CORPORATION
- Current Assignee: NIDEC CORPORATION
- Current Assignee Address: JP Kyoto
- Agency: Keating & Bennett, LLP
- Priority: JP 19150849 2019.08.21
- International Application: PCT/JP2020/031234 2020.08.19
- International Announcement: WO2021/033707A 2021.02.25
- Date entered country: 2022-02-10
- Main IPC: F04D25/06
- IPC: F04D25/06 ; F04D19/00 ; F04D29/32 ; F04D29/40 ; F04D29/58

Abstract:
A ducted fan that includes a housing with a cylindrical shape, a ring motor in the housing, and fan blades extending radially inward from an inner circumferential surface of the ring motor. The housing includes a first housing that covers a first side in an axial direction of the ring motor and a second housing that covers a second side in the axial direction of the ring motor. The second housing includes through holes penetrating the second housing at a portion on the second side in the axial direction with respect to the ring motor. The housing includes an outer circumferential wall including first and second wall portions located in outer circumferential portions of the first and second housings. The outer circumferential wall includes opening portions defined by a gap between the first and second wall portions.
Public/Granted literature
- US20220299042A1 DUCTED FAN Public/Granted day:2022-09-22
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