Acoustics – Sound-modifying means – Muffler – fluid conducting type
Reexamination Certificate
2001-07-23
2002-05-07
Dang, Khanh (Department: 2837)
Acoustics
Sound-modifying means
Muffler, fluid conducting type
C181S268000, C181S269000, C181S275000
Reexamination Certificate
active
06382349
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to an automotive vehicle. More particularly, the invention relates to a muffler for an automotive vehicle.
The geometry of prior-art mufflers is not conducive to reducing the amount of heat returned to the engine. The present invention, by utilizing novel geometry and baffle construction, minimizes heat returned to the engine, improves engine performance, and provides a muffler which emits a pleasant, deep sound.
SUMMARY OF THE INVENTION
In general, the present invention provides an improved, high-performance muffler for an automotive vehicle. The term “automotive vehicle” includes automobiles, trucks, vans, and in general all kinds of motorized vehicles.
A first embodiment of the muffler comprises a passageway having first and second ends, an inlet at the first end of the passageway, an outlet at the second end of the passageway, a substantially untapered first portion of the passageway connected to the inlet, a tapered second portion of the passageway connected to the outlet, and baffle means disposed between the first and second ends of the passageway. The second portion of the passageway tapers from wide to narrow in a direction away from the first end of the passageway toward the second end of the passageway.
A second embodiment of the muffler comprises a passageway having first and second ends, at least one inlet at the first end of the passageway, first and second outlets at the second end of the passageway, a substantially untapered first portion of the passageway connected to the inlet, tapered second and third portions of the passageway connected to the first and second outlets, respectively, and baffle means disposed between the first and second ends of the passageway. The second and third portions of the passageway taper from wide to narrow in a direction away from the first end and toward the second end of the passageway.
REFERENCES:
patent: 700785 (1902-05-01), Kull
patent: 3016972 (1962-01-01), Dugas
patent: 5248859 (1993-09-01), Borla
patent: 5773859 (1998-06-01), Jones
Dang Khanh
Roberts, Jr. Reginald F.
LandOfFree
High-performance muffler does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High-performance muffler, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-performance muffler will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2864237