A muffler arrangement includes an exhaust-gas muffler, which is subdivided into
an inlet space and an outlet space. An exhaust-gas stub of an internal combustion
engine opens into the inlet space. Exhaust gas is conducted from the outlet space
into an air channel via an exhaust-gas outlet. The air channel is formed between
the housing of the exhaust-gas muffler and an outer cover and extends along a side
of the exhaust-gas muffler. A cooling-air component flow is branched from a cooling-air
flow of a cooling-air blower and enters at a first end of the air channel. The
cooling-air component flow exits again at the second end of the air channel. In
order to reduce the discharge temperature of the exhaust gas (especially with the
arrangement of a catalytic converter), it is provided that the exhaust-gas jet
is conducted in the air channel in spaced relationship to the air channel walls
and is essentially surrounded on its path to the air channel outlet window by the
supplied cooling-air component flow so that the exhaust-gas jet forms a core flow
and the cooling-air component flow forms a cover flow surrounding the core flow.
