초록 ▼

A flattened single or dual inlet boom tube exhaust pipe for use on race cars, such as stock cars which race on oval tracks, which mounts to the standard exhaust system pipes and to the lower frame or chassis of the car, and which routes exhaust gasses to one or both sides of the car while providing

A flattened single or dual inlet boom tube exhaust pipe for use on race cars, such as stock cars which race on oval tracks, which mounts to the standard exhaust system pipes and to the lower frame or chassis of the car, and which routes exhaust gasses to one or both sides of the car while providing improved ground clearance between the exhaust pipe and the surface of the race track. The construction of the boom tube exhaust pipes comprise single or dual slightly flattened circular inlets which lead exhaust gasses into a flattened profile body constructed of formed sheet metal half shells, with the inlets at or above the lower plane of the body. One or more formed sheet metal structural ribs extend through the body and into the inlets and one or more spacer ribs support the half shells within the body. The boom tube exhaust pipes can be made with internal baffles or spiral acoustic traps so as to also be an acoustic muffler. Exhaust systems of the invention comprise a pair of exhaust pipe header assemblies, a pair of secondary exhaust pipes, and one dual inlet or two single inlet boom tube exhaust pipes. The invention also includes a method of construction of such boom tube exhaust pipes from sheet metal.

대표청구항 ▼

[ I claim:] [1.]1. A boom tube exhaust pipe for attachment to the end of a secondary exhaust pipe leading exhaust gasses from the engine of a motor vehicle, which boom tube exhaust pipe mounts to the bottom portion of the frame or chassis of the motor vehicle, and which provides improved ground clea

[ I claim:] [1.]1. A boom tube exhaust pipe for attachment to the end of a secondary exhaust pipe leading exhaust gasses from the engine of a motor vehicle, which boom tube exhaust pipe mounts to the bottom portion of the frame or chassis of the motor vehicle, and which provides improved ground clearance between the exhaust pipe and the surface of the ground, comprising:a tubular inlet having a first end of mating configuration for attachment to the secondary exhaust pipe with an inlet opening for receiving exhaust gasses therefrom, the tubular inlet tapering from said first end to a second generally flattened end; anda tubular body of generally flattened shape corresponding to said second end of said tubular inlet, which extends therefrom and which terminates at an outlet opening for expelling the exhaust gasses into the atmosphere.