Automotive engines with independent intake manifolds

摘要

The present invention provides an automobile with a self-contained intake manifold which can increase output and improve fuel efficiency by installing a shut-off valve in a part of the intake manifold in a four-valve type engine to block a portion of the intake pipe at a low speed section, thereby increasing output and improving fuel economy. The engine relates to an intake chamber (12) into which air flows in accordance with the opening of the throttle valve (4), and first to fourth intake pipes for supplying air introduced into the intake chamber (12) to each combustion chamber. (14, 16, 18, 20) includes an opening and closing means for generating a vortex by selectively blocking the intake air flowing into the combustion chamber from the intake chamber 12, the opening and closing means is rotated on the intake pipe by the cable (32) And the on / off valves 24, 26, 28, 30 fixed on the spindle 22.