LIQUID HEAT CARRIER CIRCULATION EXCITER, PRIMARILY FOR SPACECRAFT THERMAL CONTROL SYSTEM Russian patent published in 2014 - IPC B64G1/50 F04B23/04 F16K17/04 F16L15/08 

FIELD: aircraft engineering.

SUBSTANCE: this exciter comprises electric pump units (EPU) and connection pipelines with hydraulic couplings (HC). HC are coupled via tubular webs with external fluid circuit. Every HC is composed of plug-in two-valve devices. It includes stationary and plug-in HC. Stationary HC are arranged at inlet and outlet of every EPU and at the ends of pipes connected to external fluid circuit. Stationary HC body is composed of union with outer thread, central seat and valve secured thereat. Said valve is fitted with O-rings and moving spring-loaded seat. Plug-in HC are fitted at the ends of tubular webs. Plug-in HC is composed of the union with central seat accommodating moving valve. Said spring-loaded moving valve is provided with O-ring and fixed seat. Said seat is arranged at the union end, said union being provided with ring seal and tightening nut. Valves and seats of stationary and plug-in HC feature identical geometrical sizes of cones making the coupling surfaces between and valves.

EFFECT: enhanced performances, higher reliability.

2 dwg