A cooling device for use in the quenching of combustion gases containing hydrogen chloride. The device is an elongated steel vessel with angularly spaced openings to receive nozzles for the injection of a quenching liquid. The vessel contains a hard rubber layer extending over its inner surface and an acid-resistant ceramic lining within the hard rubber layer.

An improved, flexible habitation cooling system combines an evaporative cooler having a cold water circuit communicating with heat exchange means for cooling the interior of the habitation and a compression refrigeration system. In one embodiment means are provided in a cold water circuit for circulating cooled water from the evaporative cooler into a heat exchanging coil in an air plenum and back to the cooler for re-use. The expansion coil of the refrigeration apparatus communicates with the c...

A cooling apparatus includes a plurality of fan units having a fan respectively, a plurality of temperature sensors detecting temperature of an object of cooling, included in the fan units respectively, and a control portion deciding the speed of the fan according to the temperature detected by the temperature sensors in a self-control mode and increasing the speed of at least one of the other fans when the speed of any one of the fans is lower than a prescribed threshold in a coordinative contr...

An improved wrap including a pouch formed by opposed inner and outer faces. A first blanket made of a heat absorbing material is integrally attached to a second blanket made of a heat insulating material. The joined first and second blankets are permanently insertable into the pouch. Fastening means are attached to opposite ends of the pouch so that the ends of the pouch may be secured together after the pouch has been wrapped around a fluid container. The fastening means also serve to hold the ...

A primary load bearing structure particularly adapted for hypersonic aerospace vehicles utilizing a cryogenic liquid fuel, and comprised of a plurality of rigid load bearing, fluid passageways or tubes connected together in the form of a panel structure. Such panel structure and the passageways or the tubes thereof form the outside surface of the aerospace vehicle and are also positioned adjacent to or integral with a wall of the cryogenic liquid fuel tank. During flight, cryogenic liquid fuel i...

A turbine of a gas turbine engine which operates at high temperatures is supplied with cooling air from the compressor of the engine. To reduce flow of cooling air and increase the efficiency of the engine at lower temperatures where less cooling is required, the flow of cooling air is modulated, without reducing pressure, by increasing the temperature of the cooling air. This is accomplished by circulating part of the cooling air in heat exchange relation to the combustion apparatus of the engi...

An arrangement for cooling the rim of the first to second stage spacer of a multistage turbine of a gas turbine engine. Cooling air supplied to the forward face of the first stage wheel flows through blade slots below the blade roots and is discharged from the turbine wheel over the outer surface of the adjacent spacer through the clearance gap between it and the inner shroud of the second stage nozzle. Some of the spaces under the blade bases are closed by inserted air seals to regulate the qua...

Cooling apparatus for electrical components includes a chamber for retaining cooling liquid therein, electrical components which generate heat mounted within the chamber, means mounting the chamber for rotation about an axis and means for limiting the entry of impurities into the chamber means.

A cooling unit includes a coolant inlet through which a cooling coolant flows into the coding unit, a plurality of devices to be cooled which are connected to the coolant inlet in parallel, a coolant outlet through which the cooling coolant flows out from the cooling unit to the devices, a plurality of flow rate adjusting portions, connected to the coolant outlet in parallel so as to respectively correspond to the devices, for adjusting flow rates for the respective devices, a circulating pump t...

A cooling apparatus that comprises a first elongated metal tube, a second elongated metal tube longitudinally disposed within the first elongated metal tube having a substantial portion of its outer surfaces out of contact with the inner surface of the first elongated metal tube, with the inner metal tube being adapted to provide passage through it of a hot fluid, and means for cooling the outer surface of the first elongated metal tube, whereby at ambient temperatures the tubes can be easily se...