Device & method for coverting a motorcycle exhaust system into a multiple exhaust system
OwnerAlbert Earl Hatchettinventor
Life of this patent
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Abstract
Disclosed is an exhaust extension apparatus and method for converting a motorcycle exhaust system into a dual or quadruple exhaust system. The device is suited for motorcycles, off-road vehicles, or a vehicle with a reciprocating engine with multiple cylinders. Each exhaust extension unit comprises two metallic pipes shaped and welded together to form an exhaust extension unit having one exhaust intake and two equal-flow exhaust exits. Two exhaust extension units may be paired and connected to the exhaust pipes on each side of a motorcycle rider's seat, thereby providing a quadruple set of exhaust pipes and further, an increase in the performance of the engine.
Claims7
A device for improving engine efficiency and enhancing the appearance of a motorcycle by means of converting at least one pipe of the existing exhaust system of the motorcycle into a multiple pipe exhaust system, said device comprising a first length of metal pipe having a header end and a trailing end and further having a circular incision of a diameter to accommodate the leading or header end of a second length of metal pipe by means of a weld, thereby forming an integral unit comprising two distinct internal routes for the flow of engine exhaust entering the header end of said first pipe and thereafter exiting, in equal volumetric flow, the ends of both pipes.
A device for enhancing the appearance and performance efficiency of a multi-cylinder motorcycle engine having one exhaust pipe by means of converting the single exhaust pipe into a dual pipe exhaust system, comprising
- a) a first pipe having a header end and a tail end;
- b) a second pipe, shorter than said first pipe having a junction end and a tail end;
- and
- c) a clamp;
- wherein
- a circular, partial incision is cut into the wall of said first pipe proximate the entry end of said first pipe;
- material remaining attached proximate the point of the partial incision is bent inward at approximately a 45 degree angle relative to the centerline of said first pipe;
- said second pipe is bent, under high temperature, into an elliptically-shaped elbow, proximate its junction end;
- the junction end of said second pipe is cut and shaped into an elliptical form compatible with the outer curvature of said first pipe;
- the junction end of said second pipe is welded onto the circular incision of said first pipe such that the respective centerlines of both said lengths of pipe are oriented in the same horizontal plane, thereby forming an integral exhaust extension unit;
- and
- the header end of said first pipe is thereafter attached, by means of said clamp, onto the exhaust pipe or exhaust header extending from the engine of said motorcycle engine.
A device for enhancing the appearance and performance efficiency of a motorcycle engine having two exhaust pipes by means of converting the dual pipe exhaust system into a quadruple pipe exhaust system, said device comprising
- a) a first pipe having a header end and a tail end;
- b) a second pipe, shorter than said first pipe having a junction end and a tail end;
- and
- c) a means of attaching the header end of the first pipe to the exhaust header or exhaust pipe extending from the motorcycle engine;
- wherein
- a circular, partial incision is cut into a wall of said first pipe proximate the header end of said first pipe;
- material remaining attached proximate the point of the partial incision is bent inward at approximately a 45 degree angle relative to the centerline of said first pipe;
- said second pipe is bent, under high temperature, into an elliptically-shaped elbow, proximate its junction end;
- the junction end of said second pipe is cut and shaped into an elliptical form compatible with the curvature of the outer wall of said first pipe;
- the junction end of said second pipe is welded onto the circular incision of said first pipe;
- and
- one each of said exhaust extension units is attached, at the header end of said first pipe, onto the exhaust end of each respective exhaust pipe leading from the engine of said motorcycle.
Dependencies are inferred from the claim text.