03947148 is referenced by 39 patents and cites 14 patents.

The disclosure relates to a fan assembly including a duct in which an axial flow fan is mounted, there being a plurality of apertures formed in the duct wall around the fan and a layer of acoustic absorption material encircles the duct and projects through the apertures into the duct to have a minimum running clearance from the periphery of the fan.

Title
Fan assemblies
Application Number
5/527261
Publication Number
3947148
Application Date
November 26, 1974
Publication Date
March 30, 1976
Inventor
Paul Holt
Rugby
EN
Agent
Edward F Connors
Assignee
Chrysler United Kingdom
EN
IPC
F04D 29/66
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