초록 ▼

A stator vane mounting platform is disclosed which provides internal cooling chambers which facilitates the flow of cooling air through the chambers and thus, the cooling of the stator assembly. Baffles define an upstream chamber and a downstream cooling chamber between adjacent stator vanes so as t

A stator vane mounting platform is disclosed which provides internal cooling chambers which facilitates the flow of cooling air through the chambers and thus, the cooling of the stator assembly. Baffles define an upstream chamber and a downstream cooling chamber between adjacent stator vanes so as to maximize the airflow and, consequently, the cooling effects of this airflow. The internal cooling chambers are defined by a thick wall and a relatively thin wall, the thin wall being in direct contact with the hot gases passing through the stator assembly. Mounting lugs and flanges are directly attached to the thicker wall so as to mount the stator assembly to the turbine engine structure and to accommodate all of the mechanical stresses encountered during the turbine engine operation.

대표청구항 ▼

In a turbine engine having a plurality of stator vanes located in a passage for high-temperature gas, the stator vanes being oriented generally radially about a central axis of the turbine engine and having radially inner and outer mounting platforms interconnecting the radially inner and outer ends

In a turbine engine having a plurality of stator vanes located in a passage for high-temperature gas, the stator vanes being oriented generally radially about a central axis of the turbine engine and having radially inner and outer mounting platforms interconnecting the radially inner and outer ends of the stator vanes, the improvement wherein at least one of the mounting platforms comprises: a) an internal chamber defined by: a first wall extending generally parallel to the central axis of the turbine and having a first thickness, the first wall being attached to an end of the stator vanes; a second wall extending generally parallel to the first wall and having a second thickness such that the first thickness is substantially greater than the second thickness, the second wall being in contact with high-temperature gases; and, upstream and downstream radial walls interconnecting upstream ends of the first and second walls, and downstream ends of the first and second walls; b) a source of cooling air; c) cooling openings defined by the first wall to allow cooling air to pass into the internal chamber; d) means to allow cooling air to exit from the internal chamber so as to form a cooling film on the second wall; and, e) mounting means on the first wall for mounting the stator vanes to the turbine engine structure such that mechanical stresses are transmitted between the engine structure and the first wall.