초록 ▼

An internal combustion engine with combustion chambers which create a squish and swirl of an air-fuel mixture is disclosed. In the disclosed engine an inner wall of a cylinder head and a top end of a piston are provided with at least two projected regions defining gaps for creating the squish and sw

An internal combustion engine with combustion chambers which create a squish and swirl of an air-fuel mixture is disclosed. In the disclosed engine an inner wall of a cylinder head and a top end of a piston are provided with at least two projected regions defining gaps for creating the squish and swirl of the air-fuel mixture toward the end of the compression stroke of the piston.

대표청구항 ▼

An internal combustion engine with a combustion chamber, said engine comprising: a cylinder; a cylinder head having an inner wall defining the upper boundary of the combustion chamber; a reciprocable piston in said cylinder, said piston having a circular top end and at least two raised circumferenti

An internal combustion engine with a combustion chamber, said engine comprising: a cylinder; a cylinder head having an inner wall defining the upper boundary of the combustion chamber; a reciprocable piston in said cylinder, said piston having a circular top end and at least two raised circumferentially spaced portions thereon, each of said portions comprising: a first radially outermost substantially part-spherical surface Spaced a small distance from the inner wall when the piston is in the top dead center position to create a squish of an air-fuel mixture, a radially innermost surface opposite said outermost surface, and a concave surface at one circumferential end of each portion extending between the innermost and the outermost surfaces from the top to the bottom thereof, said concave surface extending at the lower end thereof at a relatively small gradient to the top end of the piston to produce mixture swirl flows in a direction perpendicular to the axis of the piston as it approaches its top dead center position.