Assembly for silencing engine cooling fan noise

Details Assembly for silencing engine cooling fan noise Assembly for silencing engine cooling fan noise

F - Mech Eng,Light,Heat,Weapons

01

N

172/23

F01N 1/24 (2006.01) B60R 13/08 (2006.01)

Patent

CA 1142096

ASSEMBLY FOR SILENCING ENGINE COOLING FAN NOISE Abstract of the Disclosure A sound absorbing and attenuating panel is located at one end of an engine compartment for silencing the noise generated by an engine cooling fan located in the compartment. The panel includes a first set of laterally spaced, vertically extending silencing units comprising sound absorbing material encased in perforated containers and a second set of silencing units located one each between each of the first set of units and each compris- ing a container defining a combination of a pair of resonator chambers separated by a cavity filled with sound absorbing material.

357414

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