Patent ID: 8196555
Filing Date: 2012-06-12
Classification: E02F

Abstract:
1. An engine room for construction equipment having an engine, a hydraulic pump connected to the engine, an inlet port inhaling an external air into an engine room, and an outlet port discharging the air in the engine room to an outside, the engine room comprising: a radiator cooling water for cooling the engine; an oil cooler cooling hydraulic fluid discharged from the hydraulic pump; an oil cooler fan making the air in the engine room pass through the oil cooler and discharging the air having passed through the oil cooler to the outside during rotation; a muffler discharging an exhaust gas from the engine to the atmosphere; a first noise trap installed in the inlet port to absorb noise generated in the engine room and emitted to the outside to shield and attenuate the noise; a second noise trap installed in the outlet port to absorb the noise generated in the engine room and emitted to the outside to shield and attenuate the noise; a radiator fan inhaling the external air through the first noise trap and making the inhaled external air pass through the radiator and the circumference of the engine during rotation; a discharge fan discharging the air in the engine room to the outside through the second noise trap during rotation; an outer wall forming an airtight space for accommodating therein the engine, the muffler, the radiator fan, the hydraulic pump, the discharge fan, and the oil cooler fan that generate the noise during driving; and a third noise trap installed on the outer wall of the engine room to face the oil cooler, the third noise trap absorbing the noise passing through the oil cooler and being emitted to the outside to shield and attenuate the noise; wherein the muffler has an outlet port side that is installed in the engine room.