Construction machine with muffler cooling vent

Abstract

A construction machine is disclosed which comprises an upper rotating structure formed by a revolving frame, an engine room formed at a rear portion of the upper rotating structure and in which are accommodated at least an engine, a radiator, and a muffler, a compartment formed within the engine room and in which the muffler is accommodated, and a vent portion formed in the compartment to make communication between the outside air and the compartment through an underside of the upper rotating structure. According to this construction, heat generated from the muffler is cut off in the compartment and is not transmitted into the engine room, and the outside air is introduced into the compartment through the vent portion to suppress an increase of temperature. Consequently, it is possible to prevent deterioration in the cooling efficiency of the radiator.

Dependencies are inferred from the claim text.