US 12,297,841 B2
Air amplifier
Philip Tennison Reilly, Gloucester (GB); and Dale Marc Comley, Bristol (GB)
Assigned to Dyson Technology Limited, Malmesbury (GB)
Appl. No. 18/278,630
Filed by Dyson Technology Limited, Wiltshire (GB)
PCT Filed Feb. 22, 2022, PCT No. PCT/GB2022/050486
§ 371(c)(1), (2) Date Aug. 24, 2023,
PCT Pub. No. WO2022/180384, PCT Pub. Date Sep. 1, 2022.
Claims priority of application No. 2102776 (GB), filed on Feb. 26, 2021.
Prior Publication US 2024/0133396 A1, Apr. 25, 2024
Prior Publication US 2024/0229820 A9, Jul. 11, 2024
Int. Cl. F04D 29/40 (2006.01); F04F 5/20 (2006.01)
CPC F04D 29/403 (2013.01) [F04F 5/20 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An air amplifier for directing airflow from a fan assembly, the air amplifier comprising:
an inlet for receiving airflow from the fan assembly; and
an airflow cavity, wherein the airflow cavity comprises a first wall and a second wall that define an airflow passageway extending towards an exhaust outlet for emitting air;
wherein a lip is provided at an outermost edge of the first wall, and
wherein the lip is an integral extension of the first wall and extends towards the second wall at an angle that is perpendicular to the first wall, thereby forming a sharp corner between the first wall and the lip within the airflow passageway, thereby partially inhibiting airflow from the exhaust outlet.