PROPELLERLÜFTER
DE602018082781T2Inactive Publication Date: 2025-06-18FUJITSU GENERAL LTD
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Patent Information
- Application Number
- DE602018082781
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2017-12-05
- Filing Date
- 2018-12-05
- Publication Date
- 2025-06-18
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Technical Problem
The distribution of wind speed in a radial direction becomes non-uniform in propeller fans, leading to a surging phenomenon such as suction of air from the downstream side, resulting in abnormal operation states, noise, and potential damage.
Method used
A propeller fan design featuring a hub with integrally formed blades that branch from the outer peripheral portion to the inner peripheral portion, with specific blade elements and holes forming flow paths to manage airflow and reduce surging.
Benefits of technology
The design increases air volume while suppressing the occurrence of surging phenomena, enhancing operational stability and reducing noise and potential damage.
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