Gas turbine engine with heat pipe for thermal energy dissipation

A gas turbine engine comprising:

• a core engine defining a core flow path;
• a bypass duct radially outwards of the core engine;
• a component in the core engine;
• an environmentally-controllable cavity disposed outside of the core flow path and outside of the bypass duct;
• and
• a heat pipe containing a working medium sealed therein, the heat pipe including a first section configured to accept thermal energy and a second section configured to dissipate the thermal energy in the environmentally-controllable cavity, the environmentally-controllable cavity operational to adjust an environment therein to variably dissipate the thermal energy from the second section.

A gas turbine engine comprising:

• a core engine including at least a compressor section, a combustor section, and a turbine section;
• a component disposed in the core engine;
• a tap configured to provide bleed air from at least one of the compressor section or a location outside of the core engine;
• a heat pipe containing a working medium sealed therein, the heat pipe including a first section configured to accept thermal energy and a second section configured to dissipate the thermal energy to the bleed air from the tap.