Air duct assembly for vehicles
AssigneeDaeki Corporation
InventorsMin-Yong Park, Hyung-Ki Moon, In-Su Shin
Life of this patent
Estimating the term…
Abstract
Disclosed herein is an air duct assembly for vehicles which reduces noise generated by the flow of intake air which flows along a path of the air duct provided in a vehicle and is fed to an engine. The air duct reduces the noise of a low frequency range in initial engine start operation, and in addition, the noise of a whole frequency range, thus allowing a vehicle to be traveled while providing the environment having minimum noise to a driver and passenger riding in the vehicle. Therefore, it is not necessary to install an additional resonator.
Claims19
An air duct assembly for vehicles, comprising:
- an air duct including:
- an inlet port formed in one end of the air duct, the inlet port being configured to intake air from outside the air duct;
- an outlet port formed in another end of the air duct, the outlet port being coupled to an air cleaner;
- and
- an air hole formed in a path along which intake air flows;
- and
- a filter unit mounted to the air hole of the air duct, the filter unit being formed of a polyurethane foam and configured to attenuate noise in all frequency bands of the intake air introduced through the air duct, the filter unit including:
- a first filter bent at an edge thereof downwards to have a first bent part;
- a second filter coupled to a lower portion of the first filter, and bent at an edge thereof upwards to have a second bent part;
- and
- a chamber defined in a central portion between the first and second filters which are in surface contact with each other, wherein the chamber is configured to reduce a velocity of the intake air which passes through the first filter.
An air duct assembly for vehicles, comprising:
- an air duct including:
- an inlet port formed in one end of the air duct, the inlet port being configured to intake air from outside the air duct;
- an outlet port formed in another end of the air duct, the outlet port being coupled to an air cleaner;
- and
- an air hole formed in a path along which intake air flows;
- a filter unit formed in the air hole and including a plurality of pores, the filter unit configured to attenuate noise in all frequency bands of the intake air introduced through the air duct, wherein the filter unit includes:
- a first filter bent at an edge thereof downwards to have a first bent part;
- a second filter coupled to a lower portion of the first filter, and bent at an edge thereof upwards to have a second bent part;
- and
- a chamber defined in a central portion between the first and second filters which are in surface contact with each other, wherein the chamber is configured to reduce a velocity of the intake air which passes through the first filter;
- and
- a support cover installed at a lower portion of the filter unit, the support cover configured to inhibit separation of the filter unit and to stably support and fix the filter unit, the support cover including a discharge hole formed in the support cover, the discharge hole configured to discharge the intake air flowing through the filter unit.
Dependencies are inferred from the claim text.