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公开(公告)号：EP4438905A1
公开(公告)日：2024-10-02
申请号：EP23166060.6
申请日：2023-03-31
发明人： Remschak, André , Grob, David
CPC分类号： F04D29/38 , F04D29/023 , F05D2300/4320130101 , F05D2300/43320130101 , F05D2300/603320130101 , B29D99/0025 , B29L2031/0820130101 , B29C70/48 , B29C45/0005 , B29C45/14786
摘要： The present application relates to a fan blade 10 for an industrial axial flow fan. Said fan blade 10 includes an aerofoil 12 and a blade root 14, the blade root 14 being arranged proximal of the aerofoil 12 and configured for attaching the fan blade 10 to a hub 62 of an axial fan. The aerofoil 12 comprises a tip 22 at a distal end 23 and a base 24 at a proximal end 25, a leading edge 26 and an oppositely disposed trailing edge 28, whereby both edges 26, 28 extend from the tip 22 to the base 24. The aerofoil 12 has a variable thickness defined as a distance between a top surface 30 and a bottom surface 32. In addition, the aerofoil 12 is integrally formed in one piece from a composite material, wherein said composite material includes carbon fibres and a thermoplastic selected from the group of polyamide, polybutylene terephthalate and polypropylene.
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公开(公告)号：EP4112942B1
公开(公告)日：2024-05-22
申请号：EP22180848.8
申请日：2022-06-23
CPC分类号： F04D19/007 , F04D29/388 , F04D29/646 , F05D2230/5320130101
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公开(公告)号：EP3728861B1
公开(公告)日：2024-05-22
申请号：EP18735305.7
申请日：2018-06-29
CPC分类号： F04D25/06 , F04D25/082 , F04D29/326 , F04D29/329 , F04D29/38 , F04D29/5806 , F01P2005/04620130101
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公开(公告)号：EP4012191B1
公开(公告)日：2024-04-10
申请号：EP20852113.8
申请日：2020-08-07
发明人： KONISHI, Hideaki , ABE, Naomi
IPC分类号： F04D29/38
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公开(公告)号：EP3792500B1
公开(公告)日：2024-04-10
申请号：EP20205038.1
申请日：2005-09-16
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公开(公告)号：EP4296161A3
公开(公告)日：2024-02-21
申请号：EP23203726.7
申请日：2018-12-27
申请人： ESS 2 Tech, LLC
发明人： SUK, Michael , SHOFFLER, David A.
IPC分类号： B62D35/00 , B64C3/14 , B64C11/18 , B64C27/467 , B64C39/02 , F01D5/14 , F03D1/06 , F04D29/38 , F04D29/42 , F04D29/68 , F15D1/00 , F15D1/12 , B64C21/10
摘要： Various embodiments of an airfoil and machines with airfoils are disclosed. The airfoils include a thicker leading airfoil portion and a thinner trailing airfoil portion. In one embodiment, the leading airfoil portion is formed by bending a body of the airfoil back toward itself. In another embodiment, the leading airfoil portion has a solid geometry and includes two elliptic surfaces. To prevent detachment of airflow, the leading airfoil portion includes at least two arc portions or surfaces that act to direct the airflow down to the trailing airfoil portion in a manner that stabilizes vortexes that may form in the region of changing thickness.
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公开(公告)号：EP4314569A1
公开(公告)日：2024-02-07
申请号：EP22723182.6
申请日：2022-03-24
发明人： PIETRAS, Piotr
IPC分类号： F04D29/38
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公开(公告)号：EP4265914A1
公开(公告)日：2023-10-25
申请号：EP21905216.4
申请日：2021-09-29
发明人： LI, Yuefei , LIU, Naitong , SU, Qiqin , YU, Dongdong , WANG, Qizhen , YANG, Feng , ZHAN, Zhenjiang , CHEN, Weitao
摘要： A wind wheel (10), a fan (100) and an air conditioner (200). The wind wheel (10) comprises a hub (11). The wind wheel (10) further comprises a blade (12), the blade (12) having a blade root (121), an outer edge (122) and a suction surface (126), wherein the blade root (121) is connected to the hub (11), the outer edge (122) is arranged away from the hub (11) relative to the blade root (121), and the suction surface (126) is separately connected to the blade root (121) and the outer edge (122). The wind wheel (10) further comprises at least two first notches (13), wherein the at least two first notches (13) are arranged in the suction surface (126) and close to the outer edge (122), and the at least two first notches (13) are sequentially distributed at an interval in the extending direction of the outer edge (122).
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