Aircraft engine fuel circuit valve slide

A valve for an aircraft engine fuel circuit, comprising:

• a sleeve;
• and
• a spool extending along a longitudinal axis, and comprising a narrowed intermediate portion extending between first and second cylindrical end portions, the first cylindrical end portion being separated from the narrowed intermediate portion by a shoulder having a surface arranged perpendicular to the longitudinal axis overall, the narrowed intermediate portion including, as an extension of the shoulder, a cylindrical section,
• said sleeve comprising two control chambers between which the spool extends and an intermediate chamber provided with a fuel inlet and a fuel outlet wherein the first and second cylindrical end portions and the narrowed intermediate portion of the spool extend, the spool being configured to be displaced relative to the sleeve under an influence of a pressure difference between the two control chambers, between a closed position wherein the spool blocks the fuel inlet, and an open position wherein the spool frees the fuel inlet,
• wherein the shoulder comprises a groove which extends radially from the cylindrical surface of the first cylindrical end portion, in a direction of the longitudinal axis, until the cylindrical section of the narrowed intermediate portion and which forms a fuel recirculation zone which ensures, when fuel flows along the first cylindrical end portion in a direction of the narrowed intermediate portion and of the second cylindrical end portion, that the fuel jet generated arrives on said cylindrical section.