| 摘要 |
An EGR(Exhaust Gas Recirculation) cooler control device provides optimal cooling efficiency to an EGR cooler because the cooling water in which the valve body is descended and which is stored is circulated with the cooling plate. An EGR(Exhaust Gas Recirculation) cooler control device comprises a filter which removes the foreign material included in the recirculation exhaust gas, a tube wherein the recirculation exhaust gas passes therethrough, a housing in which the inlet for toxic gas and gas outlet, and the cooling water inflow opening and cooling water outlet are arranged, and a by-pass vent which is arranged in the housing bottom surface and leaks the cooling water, and a three-way control valve(130) which is arranged in the cooling water outlet. The three-way control valve comprises a first pipe line(132) connected to the outlet, a second pipe line(133) connected to the by-pass vent through the bypass pipe, a third pipe line(134) connected to the cooling plate, a valve body(135) in which the cooling water flowed is stored in the outlet, a gate(136) formed in the valve body, a guide(137) guiding up and down movement of the valve body, and a spring(138) supporting the lowering pressure of the valve body to the spring modulus which is set up in up and down motion of the valve body. |
