---
publication_id: "OT-2026-000002805"
title: "System and method for piston recoil pressure adjustment"
published_at: "2026-09-15T19:15:28.409280Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000002805"
categories:
  - "robotics-automation/robot-architectures"
keywords:
  - "b25j9/0006"
  - "b25j9/144"
  - "b25j9/144"
  - "b25j9/00"
  - "b25j9/0006"
  - "b25j9/0006"
---

# System and method for piston recoil pressure adjustment

## Abstract

A system and a method for piston recoil pressure adjustment are disclosed. The system and the method use air compression in a piston to augment reverse motion. The system and the method contain a piston and a multi-directional valve controller. The multi-directional valve controller allows the venting of air in a first section above the piston head externally and/or to a second section below the piston head. By alternatingly opening and closing the vents, air can be pumped into the second section to increase the recoil forces. A reservoir connected to the second section below the piston head through an air retardation device serves to dampen abrupt changes of pressure during piston compression or decompression, thereby providing a relatively uniform recoil assistance.