Patent ID: 7841314

Claim:
A cooling structure of a construction machine equipped with an engine room in which an engine, a heat exchanger and a cooling fan are installed, and into which outside air is sucked by rotation of the cooling fan to be passed through the heat exchanger, the engine room being covered with a cover member, wherein an air intake chamber is formed in the air intake side of the heat exchanger by being separated from the other space in the engine room; a first air intake port open to the outside is provided in a chamber wall of the air intake chamber, the chamber wall being formed of the cover member; a shield member having a face opposing the core surface of the heat exchanger is provided in the front side of the core surface so as to partition the air intake chamber disposed between the core surface and the first air intake port into two chambers; and a second air intake port is provided in the face of the shield member opposing the core surface, wherein a duct is independently formed using duct members different from the cover member in a manner such that the core surface of the heat exchanger is enclosed airtightly from the surrounding atmosphere, and is provided with the second air intake port.