Robust torch jet spark plug electrode
OwnerWilliam J. Labarge, Kaius Kiiren Polikarpus +1inventors
InventorsWilliam J. Labarge, Kaius Kiiren Polikarpus, Keith Michael Brenske
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Abstract
A composition for forming an electrode for use in a torch jet spark plug is provided. The composition comprises a ceramic material, ceramic particles, and an electrically conductive material. The ceramic particles are dispersed within the ceramic material. At least some of the ceramic particles have a predetermined size. This predetermined size is at least as large as the thickness of the finally formed electrode. The electrically conductive material is capable of being manipulated to form ribbons around the ceramic particles and of being sintered to form the electrode. The resultant electrode has good resistance to explosive erosion mechanisms, which consequently increases the life of the torch jet spark plug.
Claims20
An igniter arrangement for use in an engine arrangement defining a combustion chamber, the igniter arrangement comprising:
- an insulator body defining a prechamber in gaseous communication with the combustion chamber;
- and
- an electrode located within the prechamber, the electrode comprising
- a ceramic particle located substantially contiguously with the electrode;
- and
- an electrically conductive material substantially contiguously proximate the particle.
A composition for forming an electrode proximate a prechamber defined by an igniter arrangement, the composition comprising:
- a ceramic particle having a diameter;
- and
- an electrically conductive material configured to form substantially contiguously proximate the ceramic particle and to sinter to form the electrode.
In an igniter arrangement comprising an insulator body defining a prechamber in gaseous communication with a combustion chamber, an electrode comprising:
- a ceramic particle located proximate the prechamber;
- and
- an electrically conductive material formed substantially contiguously proximate the ceramic particle.
Dependencies are inferred from the claim text.