| 主权项 |
1. A fuel injecting assembly comprising:
a gas supply structure for injecting gas fuel, said gas supply structure having a base section including a gas annular manifold and at least one gas inlet, an intermediate section and an end section having at least one gas outlet, said gas supply structure defining a passage extending from said at least one gas inlet to said at least one gas outlet; a steam supply structure for injecting steam, said steam supply structure having a base portion including a steam annular manifold and at least one steam inlet, an intermediate portion and an end portion having at least one steam outlet, said steam supply structure defining a passageway extending from said at least one steam inlet to said at least one steam outlet; an oil fuel nozzle having a base part including at least one oil inlet, an intermediate part and an end part having at least one oil outlet, said oil fuel nozzle defining a path extending from said at least one oil inlet to said at least one oil outlet, wherein said gas supply structure, said steam supply structure and said oil fuel nozzle are joined only at said gas supply structure base section, said steam supply structure base portion and said oil fuel nozzle base part such that said gas supply structure end section, said steam supply structure end portion and said oil fuel nozzle end part are free to move independently of one another in an axial direction as said gas supply structure, said steam supply structure and said oil fuel nozzle thermally expand and contract; and a first cooling gap adapted to receive cooling air from a first cooling air inlet, wherein a portion of said first cooling air inlet is at least partially located between a pathway of said gas annular manifold and a pathway of said steam annular manifold. |
