Chamber air cleaner and an intake apparatus for engine including the same

An intake apparatus for an engine, comprising;

• a main duct through which exterior air is introduced;
• a main air cleaner connected to the main duct to purify the air introduced into the main duct;
• an air hose connected to the main air cleaner such that the air having passed through the main air cleaner is exits therethrough;
• a resonator mounted to the air hose to reduce noise;
• and
• a chamber air cleaner mounted to the air hose to reduce noise when an air suction pressure in the chamber air cleaner is below a predetermined value and to increase an amount of introduced air therein when the air suction pressure in the chamber air cleaner is beyond the predetermined value,
• wherein the chamber air cleaner includes:
• a chamber housing mounted through a connector onto the air hose;
• an intake duct attached to an outer surface of the chamber housing wherein exterior air is introduced into the chamber housing through the intake duct;
• a variable valve pivotally installed in the vicinity of the intake duct and selectively opening according to an air suction pressure applied thereto;
• and
• a filter element mounted between the intake duct and the connector within the chamber housing to purify the introduced air through the intake duct;
• and
• wherein the introduced air through the intake duct is supplied into the engine with the air introduced from the main duct through the air hose when the variable valve is opened.