DETACHABLE UNIT FOR FILLING WITH CRYOGENIC FLUID Russian patent published in 2003 - IPC

FIELD: aeronautical engineering; filling with cryogenic fluid. SUBSTANCE: proposed unit is provided with heat shields mounted in clearances between inner and outer bodies of pipe union and end-piece. Device is additionally provided with sealing members mounted on outer bodies of pipe union and end-piece in zone of their contact. Mounted on outer body is additional spring-loaded check valve and supporting and centering members. Body has holes. Each check valve is provided with seat and plate located coaxially. Seat is made in form of cone. Plate is provided with ball contact surface. EFFECT: enhanced tightness; increased service life; enhanced reliability. 4 cl, 5 dwg