Muffler
AssigneeHonda Motor Co., Ltd.
InventorsHidenori Hamashima, Hiroaki Nakanishi
Life of this patent
Estimating the term…
Abstract
A muffler, connected to an engine through an exhaust pipe, includes a shell serving as a muffler body, an inlet pipe configured to introduce exhaust gas from the engine into the shell, an outlet pipe configured to discharge the exhaust gas out of the shell, and a cap configured to be attached to a narrowed portion of the inlet pipe and control the direction in which the exhaust gas flows out. The cap is provided with an opening through which the exhaust gas passes and which regulates the direction in which the exhaust gas flows out.
Claims8
A muffler configured to be connected to an engine through an exhaust pipe, said muffler comprising:
- a shell serving as a muffler body, the shell sectioned into a resonance chamber and an expansion chamber;
- an inlet pipe configured to introduce exhaust gas from the engine into the shell;
- and
- an outlet pipe configured to discharge the exhaust gas out of the shell;
- wherein the inlet pipe comprises:
- a cylindrical portion positioned inside the expansion chamber and configured to be connected to the exhaust pipe;
- and
- a narrowed portion continuous from the cylindrical portion, the narrowed portion extending inside the resonance chamber and having a hollow truncated cone shape with a diameter gradually reduced toward a downstream side thereof, a downstream end of the narrowed portion having an exhaust outlet configured to introduce the exhaust gas into the resonance chamber,
- the muffler further comprising a cap covering the exhaust outlet of the inlet pipe and having a bottomed cylindrical shape coaxial with the exhaust outlet, wherein the cap is attached to a circumferential side surface of the inlet pipe's narrowed portion, and wherein a sidewall portion of the cap is provided with an opening, through which the exhaust gas flowing out of the inlet pipe's exhaust outlet passes, and which regulates a direction in which the exhaust gas flows out.
Dependencies are inferred from the claim text.