Coupling system for i.e. turbocharged diesel engine, of airplane to couple air/air type exchanger between tube and endfitting, has jaws cooperating with shoulder and bead such that tube is retained in translation with respect to endfitting

摘要

The system (10) has a guiding bush (14) equipped with a circumferential shoulder, fixed in prolongation of an endfitting (12) of a tube (11). The guiding bush is inserted in the endfitting. A maintenance ring (16) has two jaws (17) adapted to cooperate with the shoulder and a bead (13) such that the tube is retained in translation with respect to the endfitting. The tube, the bush and the ring are made of metal i.e. stainless steel. Each one of the jaws adopts the form of the endfitting. A chamfer (19) connects an internal surface (20) of the jaw at a downstream endfitting of the jaw.