Acoustically tuned muffler
AssigneeTenneco Automotive Operating Company Inc.
InventorsKeith Bartu, Jeremy Popovich, Brett Herwat, Gabriel Ostromecki
Life of this patent
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Abstract
A muffler for receiving exhaust gas from a combustion engine comprises a shell, first and second inlet pipes each having outlets providing exhaust gas to a mixing chamber within the shell, a first chamber and a second chamber positioned within the shell and a pair of communication pipes each including an inlet receiving exhaust gas from the mixing chamber. Each communication pipe includes an outlet providing exhaust to the second chamber. Each of the communication pipes further includes a Helmholtz opening positioned downstream of the mixing chamber. The Helmholtz openings are open to the first chamber.
Claims11
A muffler for receiving exhaust gas from a combustion engine, the muffler comprising:
- a shell;
- first and second inlet pipes each having outlets providing exhaust gas to a mixing chamber within the shell;
- a first chamber and a second chamber positioned within the shell;
- and
- a pair of communication pipes each including an inlet receiving exhaust gas from the mixing chamber, each communication pipe including an outlet providing exhaust to the second chamber, each of the communication pipes further including a Helmholtz opening positioned downstream of the mixing chamber, the Helmholtz openings being open to the first chamber.
Dependencies are inferred from the claim text.