Which device is used to prevent excessive rebound during a shock strut's extension stroke?

The recoil valve is specifically designed to manage and control the extension of a shock strut, providing essential damping during its rebound or extension stroke. This device is crucial in preventing excessive rebound, which could lead to instability or damage to the aircraft's structure and its components. When a shock strut compresses and then extends, the recoil valve regulates the flow of hydraulic fluid, allowing for a controlled and gradual return to position rather than a sudden, uncontrolled rebound. By doing so, the recoil valve helps maintain a stable and safe operation during landing and takeoff, which is vital for overall aircraft performance and safety.