| 摘要 |
PROBLEM TO BE SOLVED: To provide an exhaust recirculation gas flow rate measuring device mass-producing a bypass passage ensuring length of a degree that provides a pulsation reducing effect by the use of material which reduces a pressure loss when gas flows, which improves a soot adhesion suppressing effect, and which endures high-temperature exhaust gas. SOLUTION: In this exhaust recirculation gas flow rate measuring device, a case member 4 is formed by draw-forming a metal plate in order to cover both sides of bypass passages 14a, c, d, e, f, b and some outer peripheries thereof, and a partitioning member 5 arranged inside of the case member 4 and partitioning the inner peripheries of the bypass passages 14a, c, d, e, f, b is formed by bending the metal plate. The bypass passage 14 is formed by using the case member 4 and partitioning member 5. COPYRIGHT: (C)2011,JPO&INPIT
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