Patent ID: 9309843
Filing Date: 2016-04-12
CPC Classification: F02M

Claim Text:
1. A resonator for a vehicle, which reduces intake noise by using a resonance chamber for frequency tuning, the resonator comprising: an outer pipe having a first outer pipe with an inlet for introducing external air and a second outer pipe with an outlet for discharging the air introduced into the inlet to outside; an inner pipe disposed inside the outer pipe and having a plurality of slits for giving a passage of air; and an expansion pipe inserted between the outer pipe and the inner pipe to partition a space between the outer pipe and the inner pipe into a plurality of spaces and thus partition the resonance chamber into a plurality of regions, wherein the expansion pipe comprises: an internal coupling unit coupled to the inner pipe; an external coupling unit coupled to the outer pipe; and a plurality of bent portions extending in a direction perpendicular to the inner pipe and the outer pipe, and wherein the plurality of bent portions comprises: a first bent portion disposed adjacent to the inlet and having one end connected to the internal coupling unit in a perpendicular direction; a second bent portion having one end connected to the internal coupling unit in a perpendicular direction and the other end connected to the external coupling unit in a perpendicular direction; and a third bent portion disposed adjacent to the outlet and having one end connected to the external coupling unit in a perpendicular direction.