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Motorcycle exhaust enhancement device

Inactive Publication Date: 2007-11-15
MAYBECK JAMES C
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0004] In general terms, embodiments of the present invention provide an exhaust enhancement device for a motorcycle exhaust pipe. The exhaust enhancement device may include a cylindrical tubular body portion configured to be received within a motorcycle exhaust pipe. The exhaust enhancement device may further include foraminous screen extending from said first end of the cylindrical tubular body portion. The formanious screen has a frustoconical configuration converging as it extends away from the body portion to define an open first end of a diameter generally corresponding to the diameter of said first end of the body portion and an open opposite second end of a smaller diameter. At least one obstruction is positioned withi

Problems solved by technology

Often the sound is inextricably intertwined with the horsepower and performance of the engine.
For example, using an aftermarket exhaust pipe to gain horsepower and performance may change the sound of the motorcycle.

Method used

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  • Motorcycle exhaust enhancement device
  • Motorcycle exhaust enhancement device
  • Motorcycle exhaust enhancement device

Examples

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Embodiment Construction

[0013] The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the inventions are shown. Indeed, these inventions may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements. Like numbers refer to like elements throughout.

[0014]FIG. 1a schematically illustrates a motorcycle engine 1 with a pair of exhaust pipes 2, and shows where the exhaust enhancement devices 10 may be located in the exhaust pipes 2, in accordance with an embodiment of the present invention. As shown in FIG. 1, an exhaust enhancement device 10 may be installed inside the motorcycle exhaust pipe 2 proximate its discharge end. In general, the exhaust enhancement device 10 includes a cylindrical tubular body portion 20 and a frustoconical screen 30. The cylindr...

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Abstract

Embodiments of the present invention provide an exhaust enhancement device that allows a motorcyclist to achieve a desired engine sound while also achieving improved engine performance by reducing exhaust reversion. More particularly, embodiments of the present invention provide for an exhaust enhancement device having a cylindrical tubular body portion configured to be disposed within a motorcycle exhaust pipe so that exhaust gasses may flow therethrough. The exhaust enhancement device further includes a frustoconical screen extending from an end of the cylindrical tubular body portion. The frustoconical screen has an array of holes in its wall for allowing exhaust gasses to pass therethrough. The exhaust enhancement device may further include one or more washer-like members disposed therein and configured to alter the flow of exhaust gasses so that reversion is reduced.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is a continuation-in-part of U.S. application Ser. No. 11 / 005,655 filed Dec. 7, 2004, which in turn is a continuation-in-part of U.S. application Ser. No. 10 / 408,860 filed Apr. 7, 2003, now U.S. Pat. No. 6,848,252 granted Feb. 1, 2005, which claims priority from U.S. provisional application No. 60 / 387,005 filed Jun. 6, 2002.FIELD OF THE INVENTION [0002] Embodiments of the invention relate generally to exhaust enhancement devices for motorcycles. BACKGROUND OF THE INVENTION [0003] Motorcyclists are always seeking the right blend of sound and performance from their motorcycles. Often the sound is inextricably intertwined with the horsepower and performance of the engine. For example, using an aftermarket exhaust pipe to gain horsepower and performance may change the sound of the motorcycle. Furthermore, many motorcyclists prefer a particular type of sound for their motorcycle. For example, many motorcyclists try to achiev...

Claims

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Application Information

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IPC IPC(8): F01N3/00F01N1/08F01N13/18F02B27/04
CPCF01N1/08F01N1/085F01N13/1855F02B27/04F01N2470/30F01N2490/04F01N2530/04F01N2470/20
Inventor MAYBECK, JAMES C.
Owner MAYBECK JAMES C