Importance

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Abstract

An exhaust decoupler system for motor vehicles includes: a sleeve through which exhaust gas may pass from the engine; a couple of retainer members oppositely positioned from the exhaust pipe and engine, one member engaged with the outer side of the sleeve, at which end the rims are circumferentially bent; bellows between the rims of the inner retainer members, for absorbing the bending and expansion to maintain the exhaust gas to be airtight; outer retainer members located externally the inner retainer members, both ends engaged with the inner retainer members, inner side to be opened toward the center; a guide ring member for dividing the inner retainer members and outer retainer members to symmetrically form first pockets and second pockets, and for surrounding the bellows; and an inner buffering member and an outer buffering member in the form of loop to be filled within in the first pockets and the second pockets. The bending displacement is efficiently absorbed to minimally effect the engine by oppositely sliding the guide ring member in the bending displacement direction between the inner and outer buffering members. Moreover, the system enables the sliding length between the inner and outer buffering members to be shortened, thereby reducing the abrasion and friction noise, so that the fatigue life of the overall exhaust pipe and the durability of the product can be increased.

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First Claim