METHOD OF ENSURING THERMAL CONDITIONS FOR INSTRUMENTS AND EQUIPMENT OF ROCKET UPPER STAGE Russian patent published in 2000 - IPC

FIELD: rocketry. SUBSTANCE: system includes heat-transfer agent loop with gas-and-liquid heat exchanger and motion actuator and fan located together with heat exchanger in hermetic container; heat-transfer agent loop is of closed type; heat-transfer agent motion actuator is made in form of electric pumping unit. Gas-and-liquid heat exchanger is made on base of short corrugations. Closed loop is provided with flow regulator, multi-section radiation heat exchanger and thermal plates on whose plates on whose surfaces instruments and equipment are arranged. Inlet of flow regulator is connected with electric pumping unit and outlet are connected with inlets of multi-section radiation heat exchanger and gas-and-liquid heat exchanger; outlet of multi-section radiation heat exchanger is connected with inlet of gas-and-liquid heat exchanger; surfaces of sections of above-mentioned radiation heat exchanger are located coaxially relative to inner surface of fairing of upper stage forming passages whose cavities are provided with branch pipes for supply of air. Such arrangement of system provides for maintenance of temperature of upper stage equipment during protracted period of time both in space and at launch position when upper stage presents part of space head of rocket complex. EFFECT: enhanced efficiency and reliability. 3 dwg