Mattingly, Stanger & Malur
Cooling apparatus for construction machine, and construction machine
 A cooling apparatus for a construction machine, has at least one heat exchanger including a radiator for cooling water used to cool an engine of a hydraulic excavator, and a rotating cooling fan for producing cooling air to cool the heat exchanger. A substantially disk-shaped flow guide means having an outer diameter size smaller than an outer diameter size of the cooling fan is provided on the blowoff side of the cooling fan. 
Hitachi Construction Machinery Co., Ltd.
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Seiichirou Osamu
Takeshita Watanabe