INTAKE AIR NOISE ADJUSTER

摘要

An intake air noise adjuster includes: a communicating conduit including: a first end communicating to an intake air passage to an engine, and a second end communicating to an external air; an elastic body configured to block the communicating conduit; and a flow channel area changer configured to change a flow channel area of the communicating conduit based on a change of an intake air negative pressure caused in the intake air passage.