Patent ID: 7451843

Claim:
A construction machine comprising: a lower traveling body; an upper rotating body mounted rotatably on said lower traveling body; and an engine room disposed in said upper rotating body and covered with a body cover, with cooling air being introduced from an air-intake opening portion formed in the body cover by operation of a cooling fan disposed within said engine room to cool a heat exchanger accommodated within said body cover and exhaust air after heat exchange being discharged from an exhaust opening portion formed in said body cover, wherein said air-intake opening portion is an offset opening portion, said offset opening portion being formed in a surface of said body cover which is substantially parallel to a vent surface of said heat exchanger, and offset disposed in a lateral direction relative to the vent surface of said heat exchanger so as to protrude at least partially from said vent surface when the inside of the body cover is seen through the air-intake opening portion in a direction orthogonal to the surface of the body cover with the air-intake opening portion formed therein.