DEVICE FOR AXIAL CONNECTION OF EXTERNAL TUBULAR PART WITH COAXIAL PIN PART OR INTERNAL TUBULAR PART INSERTED IN IT Russian patent published in 2012 - IPC F16L37/14 F02M61/16 

FIELD: machine building.

SUBSTANCE: invention refers to devices for axial connection of external tubular part with coaxial pin part or internal tubular part inserted in it, mainly for connection of drain branch pipe of fuel injector for fuel spray in internal combustion engines with inserted fuel drain line tip. The wall of external tubular part is provided with two diametrically located retaining slots opposite each other, which correspond to grooves on side surface of pin part or internal tubular part. Two opposite located elastic arches of clamp-shaped spring lock enter the groove made on side surface of pin part or internal tubular part on outer side through the above retaining slots in external tubular part. Retaining slots made in external tubular part and passing parallel to each other are located with an offset as to height relative to each other, however spring clamp in non-mounted condition is located mainly in one plane.

EFFECT: invention improves the connection reliability.

18 cl, 9 dwg