VENT PIPELINE Russian patent published in 2004 - IPC

FIELD: rocketry. SUBSTANCE: proposed vent pipeline of base module of rocket unit consists of inlet and outlet end pieces with flanges and sealing element in form of two-belt cup placed in between. Intermediate pipeline with spherical projections on ends is installed between inlet and outlet end pieces. Intermediate pipeline is in contact through one spherical projection with inner surface of inlet end piece for axial displacement. Said intermediate pipe is secured by other spherical projection in flange of outlet end piece for rotation. Two-belt cup is provided with outer cylindrical and inner spherical belts, being installed for thrusting against spherical projection of intermediate pipeline from side of action of working medium pressure. Spring of spacer ring thrust against shoulder on end of intermediate pipeline. Trapezoidal section ring is installed in place of contact of spherical projection with outlet end piece, smaller base of trapezium being pointed towards spherical projection. EFFECT: simplified design and process of mounting of vent pipeline. 3 dwg