Jet nozzle spark plug
OwnerBill Nguyeninventor
Life of this patent
Estimating the term…
Abstract
A spark plug having a ground electrode in the shape of a horn nozzle defined by an enlarged mouth and a reduced throat joined together, a conical inner wall tapered from the mouth to the throat. An ignitor electrode terminates at its distal end in a spherical tip disposed in the throat in spaced-apart relationship with respect to the tapered inner wall. An insulative body supports the ignitor electrode with a conductive body supporting the ground electrode. The horn nozzle is joined with the conductive body by a pair of posts so as to define a pair of slots for venting exhaust gasses from the ignition site.
Claims2
A spark plug for the controlled burning of a fuel/air mixture at a defined burn zone within a combustion chamber in the cylinder of an internal combustion engine comprising:
- an elongated electronically non-conductive body;
- an ignitor electrode supported by said non-conductive body and having a distal tip extending into said burn zone;
- an elongated conductive body surrounding said non-conductive body and having a horn nozzle immediately adjacent said tip in spaced-apart relationship;
- at least one post joining said horn nozzle with said conductive body and to hold said horn nozzle in spaced-apart relationship with respect to said conductive body to define said burn zone;
- vent slots provided in said burn zone by said posts for exhausting gasses therethrough exteriorly of said horn nozzle;
- said horn nozzle is circular having a conical inner side wall terminating adjacent said tip in a reduced throat diameter and terminating exteriorly with an enlarged mouth of greater diameter than the diameter of said throat diameter;
- said side wall constituting an open-ended flared frustum-conical passageway having a curved surface in transverse cross section;
- said distal tip of said ignitor electrode is spherical and resides within said throat of said horn nozzle defining an annular linear entrance leading into said throat;
- and
- said ignitor electrode bendable for adjustment with respect to distance from said horn nozzle with said throat.
A spark plug for the controlled burning of a fuel/air mixture at a defined burn zone within a combustion chamber in the cylinder of an internal combustion engine comprising:
- a non-conductive body;
- a conductive body supporting said non-conductive body;
- an ignitor electrode carried by said non-conductive body having an exposed distal tip of rounded configuration;
- a ground electrode supported by said conductive body and having a horn nozzle with an frustum-conical passageway defined by a tapered inner wall leading from a mouth to a throat partially encircling said distal tip of said ignitor electrode;
- a pair of posts integrally connecting said non-conductive body with said horn nozzle to define venting slots between said conductive body and said horn nozzle;
- and
- said mouth commencing with a linear annular opening downwardly merging with a bell-shaped side wall.
Dependencies are inferred from the claim text.