| 摘要 |
Method and mechanism for distributing air and recirculating gasses into the cylinders of internal combustion engines involving left and right side throttle bodies connected to the branches of a common air intake for controlling inlet air fed to left and right side inlet manifolds. These two manifolds are longitudinally offset from one another so that the outlets of their runners are in alignment and can be readily attached to the head of the engine. With such construction and for space saving considerations the throttle body for the right side intake manifold is located close to an outlet of a crossover tube recirculating exhaust gas into this manifold and the inlet of an air supply runner of this manifold for feeding air to one of the cylinders. The utilization of inlet air flow trip tabs in connection with the right side throttle and the streams of air flowing therefrom effects air turbulence in the right side intake manifold immediately downstream of the throttle valve that prevents the formation of pressure pockets therein. This causes the recirculating exhaust gasses to properly mix with the intake air and prevents the premature feed of large volumes of recirculating exhaust gasses into the closely adjacent runner feeding air into the one cylinder. The left side throttle has a sufficiently long zip tube allowing the flow to become more uniform before entering the plenum so flow tripping tabs are not needed.
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