Patent ID: 9653886
Date: 2017-05-16
CPC Classifications: F02B,F02P,H01T,Y02T

Claim:
1. A system for igniting a mixture in a main combustion chamber of an internal combustion engine, the system comprising: an elongate plug body generally residing around a center longitudinal axis and adapted to couple to the internal combustion engine; a first ignition body residing about an end of the plug body; a second ignition body adjacent the first ignition body to define a flame kernel initiation gap between the second ignition body and the first ignition body; a transversely extending unapertured cap at the end of the plug body longitudinally spaced from the plug body by a support comprising a leg that is radially offset from the center longitudinal axis, the support defining a peripheral opening around a perimeter of the cap where a total radially-facing area of the support is less than a total area of the peripheral opening, and where the smallest transverse dimension of the cap is greater than the maximum transverse dimension of the first ignition body and maximum transverse dimension of the second ignition body and where a portion of the cap extends beyond the second ignition body in all radial directions from the center longitudinal axis; and an enclosure receiving the elongate plug body, the enclosure comprising a jet passage and defining a chamber about the end of the plug body that encloses the first and second ignition bodies and the unapertured cap, the chamber adapted to receive a flow from the main combustion chamber through the jet passage, and the jet passage comprises a nozzle portion configured to direct the flow along a trajectory to the unapertured cap.