Hydraulic valve and cam phaser

A hydraulic valve for a cam phaser, the hydraulic valve, comprising:

• a bushing element, including
• a longitudinal channel,
• a first transversal channel originating from the longitudinal channel and forming a first operating connection of the hydraulic valve,
• a second transversal channel originating from the longitudinal channel and forming a second operating connection of the hydraulic valve,
• a pressure balanced hollow piston arranged within the longitudinal channel axially moveable between a first end position and a second end position,
• wherein the longitudinal channel includes a first channel section with a larger inner diameter and a second channel section with a smaller inner diameter,
• wherein the first transversal channel originates from the first channel section and the second transversal channel originates from the second channel section,
• wherein the hollow piston includes a longitudinal channel with an axial opening, at least one transversal channel, a first piston section with a greater outer diameter and a second piston section with a smaller outer diameter,
• wherein the hollow piston is supported with a sealing tolerance with its first piston section at the first channel section of the longitudinal channel and supported with a sealing tolerance with its second piston section at the second piston section of the longitudinal channel, and
• wherein the hollow piston includes plural first pressure surfaces for loading the hollow piston in a direction towards the first end position and plural second pressure surfaces for loading the hollow piston in a direction towards the second end position and a total surface area of the plural first pressure surfaces is substantially equal to a total surface area of the plural second pressure surfaces.