DEVICE FOR CONNECTION OF GAS AND AIR LINES OF OBJECTS BEING CONNECTED Russian patent published in 1998 - IPC

FIELD: aviation; connection of parts of flying vehicle, for example, engine and engine nacelle. SUBSTANCE: device includes bellows 2 secured on object 1, branch pipe secured on other object and sealing members 10, 11 and 12; device is additionally provided with at least one more bellows 6 secured on object 1 and guide 3 for branch pipe of check and indicating device 15; all bellows are located coaxially and are provided with flanges 7 and 8. Guide 3 for branch pipe is secured on flange 7 of inner bellows 2; sealing members 10, 11 and 12 are located respectively between flanges of adjacent bellows and flange of inner bellows and other object, as well as on branch pipe for engagement with guide 3. Check and indicating device 15 is brought in communication with chambers 13 bounded by bellows by means of main 14. Guide 3 for branch pipe has taper starting part 9 and branch pipe has spherical engageable surfaces 16 and 17 and cylindrical bearing surface. Besides that, sealing member 12 is secured on part of branch pipe with cylindrical bearing surface 18; all sealing members are made from porous graphite. EFFECT: enhanced reliability at high temperatures and pressures. 4 cl, 2 dwg