GAS TURBINE ENGINE MID TURBINE FRAME BEARING SUPPORT

摘要

A gas turbine engine includes a fan and a compressor section that is fluidly connected to the fan. The compressor includes a high pressure compressor and a low pressure compressor. A combustor is fluidly connected to the compressor section. A turbine section is fluidly connected to the combustor. The turbine section includes a high pressure turbine coupled to the high pressure compressor via a first shaft. A low pressure turbine is coupled to the low pressure compressor via a second shaft. A geared architecture interconnects between the second shaft and the fan. The gas turbine engine is a high bypass geared aircraft engine having a bypass ratio of greater than six (6). The low pressure turbine has a pressure ratio that is greater than 5, and the geared architecture includes a gear reduction ratio of greater than 2.5:1.

主权项

1. A gas turbine engine comprising:
high and low pressure turbines; a mid-turbine frame arranged axially between the high and low pressure turbines; a bearing operatively supported by a support structure; an inner case secured to the support structure and including a first conical member; and a bearing support to which the bearing is mounted, the bearing support including a second conical member that is secured to the first conical member at a joint, the first and second conical members arranged radially inward of the joint, the joint provided at a plane perpendicular to a rotational axis of the high and low pressure turbines, a first axial side on one side of the plane, and a second axial side on another side of the plane opposite the one side, the first and second conical members are arranged on the first axial side; a fan; a compressor section fluidly connected to the fan, the compressor comprising a high pressure compressor and a low pressure compressor; a combustor fluidly connected to the compressor section; a turbine section fluidly connected to the combustor, the turbine section comprising:
a high pressure turbine coupled to the high pressure compressor via a first shaft;a low pressure turbine coupled to the low pressure compressor via a second shaft; a geared architecture interconnects between the second shaft and the fan; and wherein the gas turbine engine is a high bypass geared aircraft engine having a bypass ratio of greater than six (6).