| US 7,513,234 B1 | ||
| Pre-chamber igniter having adjustable electrode | ||
| Darryl D. Baldwin, Lafayette, Ind. (US); and James M. Schultz, Chillicothe, Ill. (US) | ||
| Assigned to Caterpillar Inc., Peoria, Ill. (US) | ||
| Filed on Oct. 31, 2007, as Appl. No. 11/980,406. | ||
| Int. Cl. F02P 1/00 (2006.01); H01T 13/14 (2006.01) | ||
| U.S. Cl. 123—169EA [123/260; 313/125] | 18 Claims |
| 1. An igniter, comprising:
a body;
a pre-combustion chamber integral with the body and having at least one orifice;
an electrode extending into the pre-combustion chamber and configured to direct an arc to an annular side wall of the pre-combustion
chamber, wherein the electrode is movable to adjust an arc termination location on the annular side wall of the pre-combustion
chamber; and
an actuator configured to affect movement of the electrode.
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