Cooling apparatus and cooling control method for EGR gas and engine oil

摘要

A cooling apparatus for EGR gas and engine oil may include coolant lines through which coolant circulates, an EGR heat exchange part provided between the coolant lines, wherein the EGR gas circulates through the EGR heat exchange part so as to exchange heat with the coolant, a bypass part spaced apart from the EGR heat exchange part, wherein the EGR gas circulates through the bypass part, or bypasses the bypass part so as not to exchange heat with the EGR heat exchange part, an oil heat exchange part provided on the coolant lines and spaced apart from the EGR heat exchange part, wherein engine oil circulates through the oil heat exchange part so as to exchange heat with the coolant, and a control valve provided at an entrance side of the EGR heat exchange part so as to control circulation of the EGR gas into the oil heat exchange part.

主权项

1. A cooling apparatus for EGR gas and engine oil comprising:
a case including an inlet channel part through which the EGR gas is introduced and an outlet channel part through which the EGR gas is discharged; a bypass part provided in the case, wherein the EGR gas introduced through the inlet channel part of the case passes through the bypass part so as not to exchange heat with the engine oil or coolant; an EGR heat exchange part, provided in the case and disposed adjacent to a first side of the bypass part, wherein the EGR heat exchanger includes first EGR gas passages through which the EGR gas introduced through the inlet channel part passes and coolant lines through which the coolant circulates; and an oil heat exchange part provided in the case and disposed adjacent to a second side of the bypass part, wherein the oil heat exchanger includes second EGR gas passages through which the EGR gas introduced through the inlet channel part passes and coolant lines through which the coolant circulates.