Muffler
OwnerRonald G. Huff, Keith Skowronski +1inventors
InventorsRonald G. Huff, Keith Skowronski, Mark Bockwich
Life of this patent
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Abstract
A muffler for reducing the sounds of combustion gases exhausted from an internal combustion engine including an elongated fluid passage extending between an inlet and an outlet such that the outlet is in fluid communication with the inlet. Further, the inlet being connectable with the gases exhausted from the engine and the outlet being connectable with the atmosphere. The muffler further including an outer tank surrounding the passage and a tubular connector having a first end in fluid connection with the passage and a second end in fluid connection with the tank such that the connector produces a fluid connection between the passage and the tank.
Claims43
An improvement in a muffler for attenuating the sound caused by gases exhausted from an outlet header of an internal combustion engine, said muffler comprising:
- a pipe defining an elongated fluid passage extending between an exhaust gas inlet connected to said header outlet and an exhaust gas outlet communicated with the environmental atmosphere, a closed sound attenuation chamber surrounding said pipe, said chamber being coextensive with and transverse to said fluid passage, and at least one connector in said fluid passage for fluid communication with said attenuation chamber, wherein:
- (a) said closed chamber has a volume V;
- (b) said fluid passage has a diameter PD;
- (c) the distance between said exhaust inlet and exhaust outlet is PL:
- and,
- (d) the distance between said connector tube and said exhaust outlet is CL;
- said improvement involves said at least one connector being tubular and having a length L and said connector length L being less than about 8 inches, said tubular connector extending radially from said fluid passage into said attenuation chamber.
A sound attenuation muffler for reducing the sounds of combustion gases exhausted from an internal combustion engine comprising:
- an elongated fluid passage extending between an inlet and an outlet, said inlet being in fluid communication with said gases exhausted from said engine and said outlet being connectable with the atmosphere said fluid passage having a connector region extending axially between said inlet and outlet, said connector region having an axial length less than 5 inches;
- at least one tubular sound connector in said connector region which is in fluid communication with a sound attenuation chamber wherein the said fluid communication is restricted to said at least one connector, said attenuation chamber being a tank-style chamber extending about said fluid passage and extending generally between said inlet and said outlet.
Dependencies are inferred from the claim text.