| 摘要 |
PROBLEM TO BE SOLVED: To prevent recirculating gas from being led to reversely flow in an intake pipe, and also prevent deposits from being stuck to the circumference of a throttle valve. SOLUTION: In this device, in the following flow area of an intake air flow on the downstream side of the throttle valve 3 of an intake pipe 5, a curved pipe 24 opened toward the downstream side is made to server as a recirculating gas guide passage 17, thereby the terminal part of a recirculating gas introducing passage 8 can be formed. A recirculating gas control valve 4 is arranged on the way to the recirculating gas introducing passage 8. Recirculating gas flows assuredly to the downstream side by being carried on an intake following flow, thereby it may not be reversely led to flow toward the throttle valve 3. The recirculating gas guide passage 17 may be formed, for example, as a part comprising a partitioning wall and a slant surface. The thusly arranged recirculating gas guide passage 17 is arranged in this device, thereby not only sticking of deposits can be prevented, but also recirculating gas can be uniformly distributed to each air cylinder. |
