PRECOMBUSTION CHAMBER IGNITION DEVICE COATED WITH A REFRACTORY COAT FOR INTERNAL COMBUSTION ENGINE, AND PRECOMBUSTION CHAMBER IGNITER

摘要

The invention concerns an internal combustion engine ignition device comprising: a main chamber (1) designed to hold a main fuel mixture and provided with a system for compressing said mixture, and an igniter (11) including a precombustion chamber (2) designed to receive reagents and a system for igniting (13, 14) the reagents contained in said precombustion chamber (2), said precombustion chamber (2) being defined by a precombustion casing (12) having a head (12a) including at least one passageway (15), said head (12a) of the precombustion chamber casing separating the precombustion chamber (2) from the main chamber (1) and communicating the precombustion chamber (2) with the main chamber (1) via one or more passageways (15). The invention is characterized in that the head (12a) is at least partly coated externally with a coat (R) of at least one refractory material.