Integrated functional heat exchange apparatus for automobile

摘要

A heat exchange device with combined functions in vehicles includes: a heat exchanger configured to be installed in an exhaust path of an engine and connected to a coolant heat exchanger circuit and an oil heat exchanger circuit; a bypass path configured to be connected to bypass the heat exchanger in the exhaust path; a recirculation path configured to be branched from the exhaust path to be connected to an intake system of the engine; a first control valve configured to control a flow path of exhaust gas between the exhaust path and the bypass path; a second control valve configured to control a flow path of the exhaust gas between the exhaust path and the recirculation path; and a third control valve configured to control the flow path of the exhaust gas between the bypass path and the recirculation path.

主权项

1. A heat exchange device with combined functions in a vehicle, comprising:
a heat exchanger installed in an exhaust path of an engine and connected to a coolant heat exchanger circuit and an oil heat exchanger circuit, wherein the exhaust path includes an inflow path extending from the engine to the heat exchanger and an outflow path extending from the heat exchanger to a tail pipe; a bypass path configured to bypass the heat exchanger in the exhaust path, wherein the bypass path extends from the inflow path to the outflow path; a recirculation path branched from the exhaust path to connect to an intake system of the engine, wherein the recirculation path includes a main recirculation path branching from the outflow path and a sub recirculation path extending from the bypass path to the main recirculation path; a first control valve configured to control a flow of an exhaust gas between the exhaust path and the bypass path; a second control valve configured to control a flow of the exhaust gas between the exhaust path and the recirculation path; and a third control valve configured to control a flow of the exhaust gas between the bypass path and the recirculation path, wherein the third control valve is disposed at a branch point between the bypass path and the sub recirculation path, wherein the third control valve closes a flow path toward the outflow path via the bypass path when the third control valve opens a flow path reaching the sub recirculation path via the bypass path, and wherein the third control valve closes the flow path reaching the sub recirculation path via the bypass path when the third control valve opens the flow path toward the outflow path via the bypass path.