An actuation device for ejecting a removable part of a missile includes a pyrotechnic actuator having a pyrotechnic charge configured to generate an overpressure and a piston configured to act on the removable part of the missile, at least one retaining rod, and at least one thermal insulation element configured to thermally insulate at least the pyrotechnic charge. The pyrotechnic actuator is configured to break the retaining rod.

An actuation device for ejecting a removable part of a missile includes a pyrotechnic actuator having a pyrotechnic charge configured to generate an overpressure and a piston configured to act on the removable part of the missile, at least one retaining rod, and at least one thermal insulation element configured to thermally insulate at least the pyrotechnic charge. The pyrotechnic actuator is configured to break the retaining rod.

A window assembly heat transfer system is disclosed in which a window member has a selected transparency to monitored or sensed light wavelengths. One or more passages are provided in the window member for flowing a single-phase or two-phase heat transfer fluid, the passages being optically non-transparent to the monitored or sensed light wavelengths. A mechanism allows either evaporation or condensation of the fluid and/or balancing of a flow of the fluid within the passages. In one embodiment, the window assembly can be made by producing passages in a top surface of a first single plate, optionally producing passages in a bottom surface of a second single plate and bonding the top surface of the first plate to a bottom surface of a second single plate to form the window member with the passage or passages. In another embodiment, the window assembly can be made by providing a core around which the window member material is grown and thereafter removing the core to produce the passage or passages.

A thermal interface is provided. The thermal interface includes a shape memory material and a thermally-conductive material. The thermal interface is configured to be formed as a compressed thermal interface and as an expanded thermal interface. The compressed thermal interface is configured to partially fill a thermal gap between a first component and a second component. The expanded thermal interface is configured to substantially fill the thermal gap between the first and second components.

A thermal interface is provided. The thermal interface includes a shape memory material and a thermally-conductive material. The thermal interface is configured to be formed as a compressed thermal interface and as an expanded thermal interface. The compressed thermal interface is configured to partially fill a thermal gap between a first component and a second component. The expanded thermal interface is configured to substantially fill the thermal gap between the first and second components.

A system and method for cooling a missile includes an assembly of Peltier tiles configured to be reversibly attached to the skin of the missile with the cold sides of the Peltier tiles against the skin. The Peltier tiles are electrically powered to cool a portion of the missile skin. A thermally conductive paste or sheets of a heat conductive material may be placed between the Peltier tiles and missile skin. When the missile is launched, the assembly of Peltier tiles detach from the missile.

A system and method for cooling a missile includes an assembly of Peltier tiles configured to be reversibly attached to the skin of the missile with the cold sides of the Peltier tiles against the skin. The Peltier tiles are electrically powered to cool a portion of the missile skin. A thermally conductive paste or sheets of a heat conductive material may be placed between the Peltier tiles and missile skin. When the missile is launched, the assembly of Peltier tiles detach from the missile.

An apparatus includes multiple layers of phase-stable material, where adjacent layers of the phase-stable material are separated by multiple spaces. The apparatus also includes liquid phase change material in the spaces between the adjacent layers of the phase-stable material. The liquid phase change material is configured to become gaseous phase change material based on thermal energy absorbed by the liquid phase change material. The apparatus further includes at least one release configured to block passage of the liquid phase change material out of the spaces between the adjacent layers of the phase-stable material. The at least one release is also configured to allow passage of the gaseous phase change material out of the spaces between the adjacent layers of the phase-stable material.

A nosecone apparatus for hypersonic aircraft, rocket or missiles using a method for the mitigation of the created the shock front of a rocket or aerospace plane flying at hypersonic speeds by using nosecone splines to create both centripetal and isentropic airflows in conjunction with regeneratively cooling the nosecone structure.

A nosecone apparatus for hypersonic aircraft, rocket or missiles using a method for the mitigation of the created the shock front of a rocket or aerospace plane flying at hypersonic speeds by using nosecone splines to create both centripetal and isentropic airflows in conjunction with regeneratively cooling the nosecone structure.