Patent ID: 9464609
Filing Date: 2016-10-11
CPC Classification: F02M,F16K,Y10T

Claim Text:
1. A fuel delivery system comprising: an elastic fuel line for gasoline or diesel fuel positioned between a first fuel pump and a second fuel pump; and a check valve internally integrated into the elastic fuel line, the check valve including an external housing having a peripheral surface with a greater diameter than an unstretched inner diameter of the elastic fuel line, the external housing having an upstream end and a downstream end, the downstream end spaced away from the elastic fuel line, wherein an elasticity of the elastic fuel line is greater than an elasticity of the check valve, wherein a leading edge of the upstream end has a curved tapered leading surface, where a divergent angle of the curved tapered leading surface extending from the upstream end of the check valve is between 20° and 40° from a central axis, and where the curved tapered leading surface is spaced away from the elastic fuel line and tapers and curves away from an inner surface of the elastic fuel line to a greater degree than the fuel line curves or tapers due to its elastic expansion from the check valve inserted therein, where the elastic fuel line is coupled to a quick connect downstream of the check valve, the quick connect spaced at least 5 millimeters (mm) away from the downstream end of the check valve, the quick connect coupled to the second fuel pump.