COOLING DEVICE AND CONSTRUCTION MACHINE OR WORKING MACHINE EQUIPPED WITH THE SAME

• Main Authors: FUCHITA SEIICHI, MATSUKI TERUYUKI, WATANABE TOMOYA, YABE MITSUO, IKEDA MASAHIRO, SHINODA HIROKI, KAWANO ATSUSHI, KUSUYAMA YASUHIRO
• Format: Patent
• Language: English; Korean
• Published: 06.05.2010
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BLASTING; COOLING OF INTERNAL-COMBUSTION ENGINES; COOLING OF MACHINES OR ENGINES IN GENERAL; DREDGING; ENGINE PLANTS IN GENERAL; FIXED CONSTRUCTIONS; FOUNDATIONS; HEATING; HYDRAULIC ENGINEERING; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; SOIL SHIFTING; STEAM ENGINES; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

A cooling device (20) comprises a cooling fan (21), a shroud (40) provided on the outer circumferential side of the cooling fan (21), and a ring portion (51) provided on the shroud (40) and having an inner circumferential wall portion arranged in the vicinity of the outer circumferential portion of the cooling fan (21), and an outer circumferential wall portion so provided around the inner circumferential wall portion such that the downstream side end in the air flow direction is located on the air flow downstream of the downstream side end of the inner circumferential wall portion in the air flow direction. In this cooling device (20), the downstream side end of the outer circumferential edge of the cooling fan (21) in the air flow direction is located farther air flow downstream side than the downstream side end of the inner circumferential wall portion in the air flow direction.