Exhaust muffler

An exhaust muffler comprising:

• a hollow body defining a first set of apertures on the hollow body,
• an exhaust pipe having an inlet opening, and an outlet opening spaced apart from the inlet opening, wherein the exhaust pipe is disposed at least partially within the hollow body with the exhaust pipe having an inner surface and an outer surface disposed opposite to the inner surface,
• wherein the inner surface defines a primary exhaust gas flow path (P) extending along from the inlet opening to the outlet opening, and
• wherein the exhaust pipe defines a second set of apertures and a third set of apertures on the exhaust pipe such that the exhaust gases flowing through the exhaust pipe flow out of the exhaust pipe within the hollow body and/or flow back into the exhaust pipe from the hollow body through the second set of apertures and the third set of apertures, and
• at least one divider defining an opening to allow the exhaust pipe to pass therethrough, wherein the at least one divider divides the hollow body into at least a first chamber and a second chamber operatively configured for sound attenuation, wherein the first chamber is engaged with the second chamber,
• wherein the first chamber defines a reservoir fluidly associated with the primary exhaust gas flow path (P) via the second set of apertures, and to the environment via the first set of apertures, and
• wherein the second chamber is fluidly associated with the primary exhaust gas flow path (P) via the third set of apertures.