Abstract: A swirler is provided for a turbine engine. The swirler includes a swirler housing and a swirler nozzle that is attached to the housing. The housing defines a first inlet and a second inlet. The housing and the nozzle form an inner passage and an outer passage. The inner passage is radially within the nozzle and coupled with the first inlet. The outer passage is radially between the housing and the nozzle and coupled with the second inlet.

Abstract: A gas turbine engine has a fan driven by a fan drive turbine through a gear reduction, a low pressure compressor and a high pressure compressor. The high pressure compressor is driven by a high pressure turbine and the low pressure compressor is driven by a low pressure compressor drive turbine through a mechanical transmission that increases the speed of the low pressure compressor relative to the low pressure compressor drive turbine. A tap taps air from the low pressure compressor and delivers the tapped air as cooling air to the high pressure turbine.

Abstract: A tie rod assembly for a mid-turbine frame includes at least one tie rod for connecting an outer frame case to an inner frame case. At least one tie rod includes an inlet passage that branches into a first branch and a second branch. A plug is located in the first branch to block flow through a portion of the first branch.

Abstract: A gas turbine engine has a fan driven by a fan drive turbine through a gear reduction, a low pressure compressor and a high pressure compressor. The high pressure compressor is driven by a high pressure turbine and the low pressure compressor is driven by a low pressure compressor drive turbine through a mechanical transmission that increases the speed of the low pressure compressor relative to the low pressure compressor drive turbine. A tap taps air from the low pressure compressor and delivers the tapped air as cooling air to the high pressure turbine.

Abstract: A tie rod assembly for a mid-turbine frame includes at least one tie rod for connecting an outer frame case to an inner frame case. At least one tie rod includes an inlet passage that branches into a first branch and a second branch. A plug is located in the first branch to block flow through a portion of the first branch.

Abstract: A swirler is provided for a turbine engine. The swirler includes a swirler housing and a swirler nozzle that is attached to the housing. The housing defines a first inlet and a second inlet. The housing and the nozzle form an inner passage and an outer passage. The inner passage is radially within the nozzle and coupled with the first inlet. The outer passage is radially between the housing and the nozzle and coupled with the second inlet.

Abstract: A hybrid core assembly for a casting process includes a ceramic core portion and a refractory metal core portion that interfaces with a ceramic core trough of the ceramic core portion. The refractory metal core portion includes a finger having a bent portion that establishes a refractory metal core trough aligned with the ceramic core trough.

Abstract: A retainer for securing the outer air seal assembly of a turbine rotor stage in a locked position. The outer air seal is suspended from the turbine casing over the rotor stage and is locked to the casing by annular segmented locking keys. A series of circumferentially spaced seats are located upon the front face of the locking key segments with the outer surfaces of the seats describing a circle approximating a first diameter. A split ring retainer is slidably carried in a radially disposed groove and is arranged to secure the key segments in a locked position. A series of lugs extend inwardly from the inside wall of the ring. The lugs are circumferentially spaced about the ring with the inner surface of the lugs approximating a circle having a second diameter that is less that of the first diameter approximated by the seats. The lugs are spaced so that each lug can be seated upon a seat to flex the ring outwardly in a radial direction and thus secure the key segment in a locking position.