Patent ID: 8276707
Filing Date: 2012-10-02
Classification: F02B,F02D,F02M,Y02T

Abstract:
1. An anti-noise device arranged in an intake air conduit delivering an intake airflow to an internal combustion engine equipped with a turbocompressor, said anti-noise device comprising: a turbine arranged in an exhaust gas conduit and driven by exhaust gases produced by said engine and delivered to said turbine in said exhaust gas conduit; a compressor arranged in said air intake conduit operative to compress said intake airflow; a shaft connecting said turbine to said compressor and driveably transferring rotary motion from said turbine to said compressor for compression of said intake air; and a housing integrated into said intake air conduit at a position upstream from said compressor relative to said airflow, said housing including an anti-noise flap rotatably mounted within said interior chamber of said housing; wherein when in a closed position, said flap closes off airflow thorough said interior chamber and an airflow passage within said intake air conduit; wherein said flap is operable under the force of said airflow flowing to said compressor to rotatably open from said closed position, permitting passage of said airflow through said interior chamber and said airflow passage of said air intake conduit; and wherein said anti-noise flap is operable under action of a gaseous reflux flowing is a direction opposite to said airflow to rotatably move said flap to said closed position to close off said airflow passage of said air intake conduit, wherein said housing box is integrated into said air intake conduit such that airflow in said airflow passage of said air intake conduit passes through said chamber of said housing box.