Straticharge injector spark plug

Claim 2

A spark plug comprising; an insulating member; a precombustion chamber communicating with one end of the said insulating member, said precombustion chamber including an elongated, substantially cylindrical orifice extending therefrom, said orifice having a sufficient length so as to provide a concentrated, narrow flame injection therefrom during operation of said spark plug, a ground electrode about the junction between said chamber and said orifice; and an electrode rod extending centrally through said member and said precombustion chamber, said rod bearing closest to said precombustion chamber adjacent said ground electrode.

Claim 3

The spark plug recited in claim 1 wherein said grounD electrode comprises a low carbon content metal.

Claim 4

The spark plug recited in claim 1 wherein said insulating member includes a portion extending into said chamber surrounding a portion of said electrode therein.

Claim 5

The spark plug recited in claim 3 wherein said electrode is coaxial with said orifice.

Claim 6

The spark plug recited in claim 3 wherein at least a portion of said orifice extends at an angle with respect to said electrode.

Claim 7

The spark plug recited in claim 3 wherein said precombustion chamber is defined by a casing removably fitted to said insulating member.

Claim 8

The spark plug recited in claim 6 further comprising cooling fins along said sleeve.

Claim 9

A spark plug adapted for use with an internal combustion engine of the type employing a piston driven by a combustion charge ignited by said spark plug, said spark plug comprising: an insulating member; a precombustion chamber communicating with one end of said insulating member, said combustion chamber including an elongated substantially cylindrical orifice extending therefrom and communicating with said engine; a ground electrode about the junction between said chamber and said orifice; an electrode rod extending centrally through said member in said precombustion chamber, said rod bearing closest to said precombustion chamber adjacent said orifice; and wherein said orifice has a sufficient length so as to provide a concentrated, substantially uniform flame injection therefrom during operation of said engine.

Claim 10

A spark plug adapted for use with an internal combustion engine of the type employing a piston driven by a combustion charge ignited by said spark plug, said spark plug comprising: an insulating member; a precombustion chamber communicating with one end of said insulating member, said combustion chamber including an elongated substantially cylindrical orifice extending therefrom and communicating with said engine; a ground electrode about the junction between said chamber and said orifice; an electrode rod extending centrally through said member in said precombustion chamber, said rod bearing closest to said precombustion chamber adjacent said orifice; and wherein said orifice has a sufficient length so as to provide a concentrated, substantially uniform flame injection therefrom during operation of said engine.

Claim 11

The spark plug recited in claim 8, wherein said orifice includes a portion disposed at an angle with respect to said electrode and substantially perpendicular to said piston.