DEVICE FOR CHECK-UP OF LEAK-PROOFNESS OF VESSELS OPERATING IN VACUUM AT LOW TEMPERATURES Russian patent published in 2001 - IPC

FIELD: test equipment, applicable in check-up of leak-proofness of fuel tanks of launch vehicles operating in vacuum. SUBSTANCE: the device has a test chamber for accommodation of the vessel to be tested communicating with the liquid refrigerant feed and vent pipelines, with the test gas feed pipeline, and a leak detector, pressure gauge, a freezing trap with adsorbent and refrigerant is positioned between the test chamber and the leak detector, it is made for free passage of test gas molecules through it and absorption of liquid refrigerant molecules by adsorbent. EFFECT: enhanced accuracy of leak-proofness test. 1 dwg