| 摘要 |
An EGR cooling structure is provided. The EGR cooling structure (1) comprising: a cylinder block (11) having cylinders (11a); a cylinder head (12) (exhaust gas manifold section) into which exhaust gas exhausted from the cylinders (11a) is collected; an exhaust emission control device (20) for purifying the exhaust gas exhausted from the cylinder head (12); an EGR pipe (50) through which EGR gas of a part of the purified exhaust gas is introduced into an intake system r intake system from second exhaust gas piping (32) downstream of the exhaust gas purification device (20); and an EGR cooler (60) provided in the EGR pipe (50) and cooling the EGR gas with the cooling liquid. An exhaust gas passage leading from the cylinders (11a) to the exhaust gas purification device (20) is curved when seen from a side, and the EGR cooler (60) is disposed in the space (5) surrounded by the cylinder block (11), the cylinder head (12), and the exhaust gas purification device (20).
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