Engine room for construction equipment

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 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 third noise trap installed on an 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;
• a discharge fan discharging the air in the engine room to the outside through a duct during rotation;
• the 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;
• a third noise trap installed in the duct connected to the discharge fan, the third noise trap absorbing the noise emitted to the outside through the duct to shield and attenuate the noise;
• and
• a fourth noise trap installed on an outlet side of the duct, the fourth noise trap absorbing the noise emitted during the discharge of the exhaust gas from the muffler to the outside through the duct to shield and attenuate the noise,
• wherein the discharge fan is a centrifugal blower.

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 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 second noise trap installed on an outer wall of the engine room to face the oil cooler, the second noise trap absorbing the noise passing through the oil cooler and being emitted to the outside to shield and attenuate the noise;
• a discharge fan discharging the air in the engine room to the outside through a duct during rotation;
• the 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;
• a third noise trap installed in the duct connected to the discharge fan, the third noise trap absorbing the noise emitted to the outside through the duct to shield and attenuate the noise;
• and
• a fourth noise trap installed on an outlet side of the duct, the fourth noise trap absorbing the noise emitted during the discharge of the exhaust gas from the muffler to the outside through the duct to shield and attenuate the noise, wherein the outer wall comprises first and second opposing end wall portions and first and second opposing side wall portions, the first and second side wall portions being disposed between and connecting the first and second opposing end wall portions, wherein the first noise trap is disposed along the first end wall portion facing the radiator and the radiator fan, the second noise trap is disposed along the second end wall portion facing the oil cooler and the oil cooler fan, and the discharge fan discharges the air to the outside above the first side wall.