US 12,286,978 B2
Nozzle for a fan assembly
Philip Tennison Reilly, Gloucester (GB); Lucy Ruiz, Bristol (GB); Samuel Douglas Clifford, Malmesbury (GB); and Ben Thomas Edmonds, Swindon (GB)
Assigned to Dyson Technology Limited, Wiltshire (GB)
Appl. No. 18/568,238
Filed by Dyson Technology Limited, Wiltshire (GB)
PCT Filed May 25, 2022, PCT No. PCT/GB2022/051314
§ 371(c)(1), (2) Date Dec. 7, 2023,
PCT Pub. No. WO2022/269221, PCT Pub. Date Dec. 29, 2022.
Claims priority of application No. 2108924 (GB), filed on Jun. 22, 2021.
Prior Publication US 2024/0271636 A1, Aug. 15, 2024
Int. Cl. F04D 29/46 (2006.01); F04D 27/00 (2006.01); F04D 29/42 (2006.01); F04F 5/16 (2006.01); F04F 5/46 (2006.01); F04D 25/08 (2006.01); F04D 25/10 (2006.01); F04D 29/40 (2006.01)
CPC F04D 29/464 (2013.01) [F04D 27/00 (2013.01); F04D 29/4246 (2013.01); F04F 5/16 (2013.01); F04F 5/461 (2013.01); F04D 25/08 (2013.01); F04D 25/10 (2013.01); F04D 29/403 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A nozzle for a fan assembly, the nozzle comprising:
a first duct through which a first airflow moves, the first duct having a first outlet for emitting the first airflow; and
a second duct through which a second airflow moves, the second duct having a second outlet for emitting the second airflow,
wherein:
the first and second outlets are arranged such that the first and second airflows collide to generate a combined airflow having a direction defined by the relative flow rates of the first and second airflows,
the first duct comprises a portion moveable to vary a size of the first outlet and thus the flow rate of the first airflow,
the portion is moveable linearly along an axis, and
a size of the second outlet is unchanged by movement of the portion.