초록 ▼

A turbine intermediate case in which a turbine bearing support and an inner case are supported centrally within an outer case by radially inward extending hollow struts. An inner case carrying a diaphragm and seals which defines a vent cavity surrounding a bearing compartment. Air leaking past seals

A turbine intermediate case in which a turbine bearing support and an inner case are supported centrally within an outer case by radially inward extending hollow struts. An inner case carrying a diaphragm and seals which defines a vent cavity surrounding a bearing compartment. Air leaking past seals is collected in this vent cavity and flows through the hollow struts to be utilized for impingement cooling of the outer surface of the outer case.

대표청구항 ▼

A turbine bearing support including: an outer case element; an inner case element within and spaced from the outer case element; a plurality of hollow radial struts secured to and extending inwardly from the outer case element and through the inner case element and having a plurality of vent holes n

A turbine bearing support including: an outer case element; an inner case element within and spaced from the outer case element; a plurality of hollow radial struts secured to and extending inwardly from the outer case element and through the inner case element and having a plurality of vent holes near the inner end; a bearing support secured to and supported by the inner ends of said struts; a seal and diaphragm means carried by the inner case element and forming a vent cavity within the inner case communicating through the vent holes of the hollow strut; a chamber external of the outer case element and having a plurality of impingement holes in the wall thereof for directing air against the outer case element; and a connection through the struts to said chamber for directing air from the vent cavity to the chamber.