| 摘要 |
<p>In a cooling structure for a construction machine, to minimize the occurrence of a turbulent flow of air, provide a better cooling ability, and reduce noise pollution, a recess 20 is formed in a portion of an engine cover 6d above a front portion of an engine 8, and exhaust ports 15a are provided in an inclined portion of the recess 20 facing a fan 9. A space "A" having a proper size is thereby delimited by a portion 21 of the engine cover 6d, which is positioned radially outwardly of the fan 9, the exhaust ports 15a and the fan 9. Said portion of the engine cover 6d forms a first guide 21 for guiding part of the cooling air which has passed the fan 9, in a laminar flow, to the exhaust ports 15a. The opposite slope of the recess 20 forms a second guide 22 for guiding the cooling air discharged through the exhaust ports 15a in a laminar flow to the environment. A distal end 22a of the second guide 22 is positioned at a lower level than a distal end 21a of the first guide 21, and the exhaust ports 15a extend between said distal ends 21a and 22a. <IMAGE></p> |
