Exhaust device for vehicle

Details Exhaust device for vehicle Exhaust device for vehicle

F - Mech Eng,Light,Heat,Weapons

01

N

F01N 13/04 (2010.01) F01N 13/08 (2010.01) F01N 13/14 (2010.01) F01N 13/18 (2010.01) B62M 7/02 (2006.01) F01N 1/08 (2006.01) F01N 1/24 (2006.01)

Patent

CA 2265737

A first muffler (4) is connected to a rear end portion of the exhaust pipe (2) extending from a single-cylinder engine toward one side of a rear portion of the vehicle body and is provided on one side of the vehicle body. A second muffler (5) is provided on the other side of the vehicle body opposite to the first muffler (4) through a connecting pipe (6). An outer side surface near the front end portion of the first muffler (4) and the second muffler (5) are covered with first and second covers (7) and (8) both plated. Each of the exhaust pipe (2) and the first and second mufflers (4) and (5) have double-pipe structure with outside plated. Further, a front end portion of the second cover (8) is curved toward the center of the vehicle body, and a phantom line as a continuous frontward extension from the front end portion of the second cover (8) is positioned before the axis of the connecting pipe (6).

Selon la présente invention, un premier silencieux (4) et un second silencieux (5), qui communiquent entre eux au moyen d'un tube de jonction (6) du côté opposé de la carrosserie du véhicule, sont disposés au niveau de l'extrémité postérieure d'un tube d'échappement (2) prenant naissance sur un moteur monocylindrique (1) et aboutissant sur l'un des côtés de la partie postérieure de la carrosserie du véhicule. Les zones de ces silencieux situées au voisinage des parties antérieures sont protégées extérieurement, l'une par un premier bouclier (7) et l'autre par un second bouclier (8) en tôle. La structure du tube d'échappement (2) ainsi que des premier et second silencieux (4, 5) est en double tube, le tube extérieur étant en tôle. La partie antérieure du second bouclier (8) se recourbe vers le centre de la carrosserie du véhicule de façon qu'une ligne imaginaire prolongeant vers l'avant cette partie antérieure aboutisse en avant de l'axe du tube de jonction (6) par rapport à l'avant de la carrosserie du véhicule.

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