Patent ID: 7934582

Claim:
A noise and vibration reduction system for an engine mounted to a body, the engine being operative to drive one or more engine driven components for use by the body, comprising: an air intake silencer coupled to an air intake of the engine, the air intake silencer including one or more interior walls and an outer cylindrical wall forming a closed wall, a partially open air intake opening, and an exit port, the one or more interior walls including a series of baffles, each baffle from the series of baffles forming a hole with a flap hanging from an end of the hole, where air entering the air intake silencer must pass through the series of baffles before entering the engine which reduces sound waves introduced to the engine through the air intake and smoothes air flow into the engine, wherein the one or more interior walls include: a first cylinder having a first end forming the partially open air intake opening and a second end forming the closed wall, the first cylinder also forming a first series of baffle holes from the series of baffles near the second end through which air entering through the air intake opening will travel; a second cylinder formed around the first cylinder so as to create a first air passage between the first cylinder and the second cylinder, the second cylinder having a first closed end connected to the first cylinder near the second end and beyond the first series of baffle holes and a second closed end connected to the first cylinder near the first end, the second cylinder forming a second series of baffle holes from the series of baffles near the second closed end through which air traveling from the first series of baffle holes and along the first air passage will pass; and a third cylinder formed around the second cylinder so as to create a second air passage between the second cylinder and the third cylinder, the third cylinder having a first exterior end connected near to the first end of the first cylinder and near to the second closed end of the second cylinder and a second exterior end connected near to the closed wall of the second end of the first cylinder and near to the first closed end of the second cylinder, the third cylinder having an extended wall near the second exterior end forming the exit port through which air traveling from the second series of baffle holes and along the second air passage will pass to exit the air intake silencer.