Patent ID: 6612400
Filing Date: 2003-09-02
Classification: F01N

Abstract:
An exhaust muffler assembly comprised of an outer housing, an inlet tube protruding into said housing, an outlet tube protruding into said housing, a muffler silencing chamber containing muffler silencer module positioned within said housing, said muffler silencing chamber dividing interior of said housing into input chamber, output chamber, and bypass tube, said input chamber creating flow path from said inlet tube to inlet of said bypass tube and to inlet of said muffler silencing chamber, said output chamber creating paths connecting outlet of said bypass tube and outlet of said muffler silencing chamber to said outlet tube of said housing, said housing containing said bypass tube positioned adjacent to the said muffler silencing chamber with said inlet of said bypass tube intersecting said input chamber of said housing and said outlet of said bypass tube intersecting said output chamber of said housing, said bypass tube containing bypass valve, said bypass valve composed of said bypass valve's gate and axle, said axle of said bypass valve gate protruding at one end through said housing and mechanically connected to a bypass valve lever tension spring and mechanical cable via a pivoting bypass valve lever, said bypass valve lever spring connected to said bypass valve lever so as to create tension at all positions of said bypass valve lever and against tension of said mechanical cable, said bypass valve lever tension spring connected at the opposite end to said housing, said mechanical cable comprised of metal wire core with metal wire wound insulation providing linear motion of said wire core within said metal wound insulation through mechanical actuation, said mechanical cable connected at the opposite end to said DC motor actuator unit, said metal wound insulation of said cable affixed to frame of said DC motor actuator unit, said wire core of said mechanical cable fastened to output shaft, pulley, or lever of said DC motor actuator unit, said DC motor actuator unit energized by DC voltage switched source supplying forward, off, and reverse polarity settings.