EXHAUST GAS CIRCULATION VALVE

An exhaust gas recirculation valve includes an exhaust passage 4 having an exhaust gas inlet 2 and an exhaust gas outlet 3 aligned on the same line, an EGR passage 7 branched from the exhaust passage 4, a shaft 8 attached rotatably at a branching point between the exhaust passage 4 and the EGR passage 7, and an elliptically shaped butterfly valve 9 rotating integrally with the shaft 8 to open/close the exhaust passage 4 and the EGR passage 7.