The present invention relates to a connecting means for connecting and fixing an intake manifold to a fixture for fixing the EGR pipe when the EGR pipe for recirculating the exhaust gas to be exhausted is installed in the intake manifold. Since the fixed plate is fixed to the intake manifold when the fixed plate is fixed, the temperature of the gas passing through the center of the pipe is transmitted to the intake manifold as it is, and the fatigue is increased due to the fatigue at the fixed plate and the grounded portion due to the high temperature, There is a problem that the grounded portion melts and the fixture can not be fixed. SUMMARY OF THE INVENTION The present invention has been conceived in view of the above problems, and it is an object of the present invention to provide a high-temperature exhaust gas heat exchanger, The earth is installed to block the temperature delivered to the intake manifold or to cools the transmitted heat to prevent the ground portion of the intake manifold from being deformed or melted to be damaged.
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