HIGH-PRESSURE PIPELINE Russian patent published in 2005 - IPC

FIELD: joints or fittings for pipes.

SUBSTANCE: high-pressure fuel pipeline comprises working profiles with negative angle and male and female members provided with surfaces of the strength tightening. All members can be combined by means of catching outer and inner surfaces. The working profiles are arranged at the ends of reinforced hose and made of corrugated tip. The ring groove in the corrugation is made with the negative angle to the axis both from the outer and inner sides and provided with bearing surfaces. The reinforced hose is connected from above with the metallic hose. Inside the reinforced hose is a pipe with conical fitting provided with the bearing surface which abuts on the squeezing connecting pipe provided with working profiles made of mating ring grooves with negative angle and bearing surfaces and is secured to the bearing surface of the squeezing connecting pipe by means of coupling nut with bent collar. Between the metallic hose and coupling nut is the squeezing bushing provided with the working profiles with mating ring groves having negative angle and bearing surfaces. All working profiles and bearing surfaces after pressing are the surfaces of strength tightening. The pipeline can be provided with the connecting pipe for control of discharging fuel.

EFFECT: enhanced reliability.

1 cl, 1 dwg