AIRCRAFT ENGINE OIL TANK Russian patent published in 2000 - IPC

FIELD: lubrication systems of aircraft engines mounted in supersonic maneuverable aircraft. SUBSTANCE: oil tank includes shell and system of venting loop-shaped mains with intakes. System is connected to collector consisting of two chambers communicated through taper seat engageable with ball lock. Chambers are connected to consumer through oil separator. Seats located concentrically about axis and relief seats engageable with ball lock are provided in taper seat at point of contact with lock. Relief seats are made in form of circular groove. Ball lock is provided with flexible envelope. Thus, availability of relief seats on taper seat makes it possible to obtain additional force exerted on lock by pressure of air from side of relief seats at moment when aircraft when aircraft escapes from zone of action of negative load factor or at moment of return from inverted flight to normal flight; this force is directed to side of action of forces of gravity, thus enhancing response of lock and excluding shutting-off of venting mains. EFFECT: enhanced efficiency. 3 cl, 3 dwg