Selective swirl inducing device for a combustion chamber

摘要

In a combustion chamber of an internal combustion engine, a selectively activated device positioned adjacent the intake port and having a first non-swirl inducing operative position and a second swirl inducing operative position is provided. In the first operative position, a wall of the device is substantially planar with the wall of the cylinder head forming the combustion chamber. In the second operative position, the device pivots to move the wall outward in a non-planar relationship to the cylinder head wall to form a ramp-like surface causing fluid flow from the inlet port into a circular swirling motion in the combustion chamber.