US 12,339,032 B2
Acoustic dampening air moving device housing
Phillip V. Mann, Rochester, MN (US); Tyler Jandt, Austin, TX (US); Sandra J. Shirk/Heath, Rochester, MN (US); and Tyler Smith, Rochester, MN (US)
Assigned to International Business Machines Corporation, Armonk, NY (US)
Filed by INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US)
Filed on Jun. 3, 2022, as Appl. No. 17/805,266.
Prior Publication US 2023/0392822 A1, Dec. 7, 2023
Int. Cl. F24F 13/24 (2006.01); G10K 11/162 (2006.01); G10K 11/178 (2006.01)
CPC F24F 13/24 (2013.01) [G10K 11/162 (2013.01); G10K 11/178 (2013.01); F24F 2013/242 (2013.01); G10K 2210/121 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An air moving device comprising:
a housing comprising an airflow inlet, an airflow outlet, a downstream focal-bearing surface, and an upstream focal-bearing surface;
a fan system comprising a fan that rotates about an axis of rotation that emits noise as it impinges an airflow in a first direction away from the airflow outlet and against the downstream focal-bearing surface, wherein the downstream focal-bearing surface redirects the airflow in a second direction at an acute angle to the first direction toward the airflow outlet;
a first noise dampening structure at a focal point of the downstream focal-bearing surface, wherein the downstream focal-bearing surface redirects and concentrates the noise at the focal point of the downstream focal-bearing surface, and wherein the first noise dampening structure reduces the concentrated noise; and
a second noise dampening structure at a focal point of the upstream focal-bearing surface, wherein the upstream focal-bearing surface redirects and concentrates the noise at the focal point of the upstream focal-bearing surface, and wherein the second noise dampening structure reduces the concentrated noise
wherein the first noise dampening structure and the second noise dampening structure are aligned with the axis of rotation.