CARDAN SUSPENSION OF LIQUID-FUEL ROCKET ENGINE Russian patent published in 2015 - IPC F02K9/66 

FIELD: engines and pumps.

SUBSTANCE: in the cardan suspension of liquid-fuel rocket engine containing a supporting and movable truncated cones connected via the cardan assembly comprising hollow spherical journal penetrated by the movable and fixed pivot pins, axial bearing installed inside the blind nut, coaxially screwed in the bottom end of the supporting cone, two steering machines with top and bottom securing frames, spherical journal provided with flange for securing to top end of the movable cone includes a through channel, for example, rectangular cross-section with penetrated through it coaxial external and movable and internal fixed pivot pins, at that the top wall of the channel is made with central concave cylindrical surface with pivot pin, perpendicular to the fixed pin, and movable pivot pin contains lug with convex cylindrical surface entering in contact with concave cylindrical surface of the through channel, and ensuring sliding on it of the cylindrical surface of lug of the movable pin in limited range, and top fixed supporting cone is provided with fork-like clamp secured at both ends of the fixed pin, made in form of fitted bolt with head and nut. Each hinge point of securing of two steering machines is secured on the frame comprising brace strut hingedly secured to one of the walls of the appropriate cone, and horizontally located bracket of triangular shape with pair of eye rings secured in forks installed on top or bottom seat flange of the cones.

EFFECT: increased reliability of the structure, and independent operation of the rocking system.

2 cl, 4 dwg