ECONOMIZER HAVING BY-PASS PART

摘要

An economizer having a bypass unit on a body thereof without connecting additional bypass line is disclosed. The economizer comprises a body including a heat exchange unit and a bypass unit and where exhaust gas introduced to either the heat exchange unit or the bypass unit is discharged to the outside; a heat exchange pipe equipped in the heat exchange unit; a control valve equipped in an engine and exhaust lines each of which is connected to the heat exchange unit and the bypass unit; and a control unit which is connected to the control valve and leads the exhaust gas to the heat exchange unit or the bypass unit.