US Patent 9995482 Gas burner assembly

A gas burner assembly includes a grate that defines a first internal fuel passage and a second internal fuel passage. A burner defines an inner burner ring and an outer burner ring. The first internal fuel passage of the grate extends to the inner burner ring, and the second internal fuel passage of the grate extends to the outer burner ring. A fuel chamber of the inner burner ring is contiguous with the plurality of flame ports of inner burner ring, and a fuel chamber of the outer burner ring is contiguous with the plurality of flame ports of outer burner ring. At least a portion of the fuel chamber of the outer burner ring is positioned directly below the fuel chamber of the inner burner ring.