主权项 |
1. A throttle valve for an internal combustion engine comprising a combustion chamber that combusts a fuel to produce power, comprising:
a flow chamber configured to direct a stream of mixture comprising gas and fuel to the combustion chamber of the internal combustion engine; and a valve body having a concavity that spans across a circumference of the valve body, the valve body disposed within the flow chamber and axially translatable with respect to the flow chamber for controlling a flow volume of the stream of mixture, wherein the valve body has a shape and a surface topology configured to entrain the stream of mixture, to produce an axially-symmetric coherent downstream flow pattern, wherein the surface topology comprises a pattern of features selected from the group consisting of bumps, dimples, cavities, ridges, grooves, and wedges, wherein the features are large enough to be identifiable to naked eyes. |