Patent ID: 11971171
Assignee: SIEMENS ENERGY GLOBAL GMBH & CO. KG
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 22:
23. A pilot cone for use in a burner arrangement, comprising:
a covering which widens downstream along a burner axis and which is passed through by cooling air passages, and having an internal wall which extends upstream from an upstream end of the covering;
an annular gap which extends at the radially external side along the internal wall and comprising cooling air openings which produce a connection from the annular gap to the cooling air passages; and
an external wall which extends upstream with spacing from the internal wall from the covering and which delimits the annular gap at the radially external side;
wherein the internal wall comprises apertures;
wherein a centering collar is arranged upstream of the covering in order to receive a pilot burner; and
wherein a circumferential annular groove, which is open toward the burner axis, is arranged between the covering and the centering collar.