| 摘要 |
PROBLEM TO BE SOLVED: To make flow rate characteristics of exhaust gas have more linear characteristics, and further increase a flow rate of the exhaust gas, in an exhaust gas recirculation valve.SOLUTION: A valve 14 that constitutes an exhaust gas recirculation valve 10 is connected to a shaft 38, and is rotatably arranged together with the shaft 38 in the interior of a body 12. An outer peripheral surface of the valve 14 is formed in a substantially spherical shape, the axis B2 (center of curvature) of the valve and the axis B1 of the shaft 38 being eccentrically arranged by a predetermined distance along a flow direction of the exhaust gas. In addition, a percentage between the eccentric distance L between the center B2 of curvature of the valve 14 and the axis B1 of the shaft 38, and the diameter D of a gas inlet port 20 of the body 12 into which the exhaust gas flows is ≥5.5%. |
