Reciprocable piston internal combustion engine, especially diesel engine

Claim 1

A reciprocable piston internal combustion engine, especially diesel engine having smoke development therewith, which includes in combination: a cylinder, a piston reciprocable in said cylinder and provided with a combustion chamber therein for receiving fuel and air for combustion, a cylinder head associated with said cylinder and comprising recess means aligned with said combustion chamber, said cylinder head also being provided with air conveying passage means leading into said recess means, valve guiding means arranged in said recess means, valve means guided in said valve guiding means for continuously controlling change in the supply of air from said recess means to said combustion chamber, and air guiding means simultaneously movably arranged within said air conveying passage means and including a movable vane pivoted at a point remote from said recess means with a free end extending toward said valve guiding means so that said free end overlies said recess means, said free end being movable to restrict the passage of air into said chamber and vary the velocity of circulating air, thereby subjecting the fuel-air mixture in the combustion chamber to a strongly defined twist during all load ranges of the internal combustion engine keeping relatively low the supply of oxygen to the combusting the fuel-air mixture in the center of the combustion chamber.