EXPANSION JOINT Russian patent published in 2015 - IPC F16L51/02 

FIELD: engines and pumps.

SUBSTANCE: in the suggested expansion joint containing main bellows, branch with welded bushing, unloading element, centring supports, spherical hinges, stock, according to the invention the main bellows are located at the right angle to each other; they are connected with each other and with the unloading element using tee; at that at input of the horizontal main bellows the branch with bushing is installed, containing one centring support with spherical hinge, and unloading element is provided with the second centring support with the spherical hinge in the branch bushing.

EFFECT: invention compensates angular and linear movements of flanges of the fuel tank and rocket engine, increases operation reliability of the unloading element and spherical hinges.

8 cl, 10 dwg