Harness, Dickey & Pierce, P.L.C.
Intake noise reduction device
Provided is an intake noise reduction device that can suppress an occurrence of noise in an intake pipe. An intake noise reduction device (100) disposed on a downstream side of a throttle valve in an intake pipe and including a flow-guiding net (110) that guides an air flow, wherein the flow-guiding net includes a mesh that is configured to be fine in a vicinity of a center of a flow passage in the intake pipe and to become coarser with distance from the vicinity of the center. For example, the mesh flow-guiding net (110) is formed of a plurality of radial portions (111) extending radially outward from the vicinity of the center of the flow passage in the intake pipe and a plurality of concentric portions (112) provided concentrically from the vicinity of the center.
NOK CORPORATION
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F02D F02M F02M F02M
inventional inventional additional inventional
Shuji Shigeru Masahiko Norimasa
Yoshitsune Watanabe Inoue Hosonuma