Shock-absorbing piston for hydraulic fixtures

US6974004B2 · kind B2 · utility

Assignee

• thyssenkrupp Bilstein GmbH · DE

Inventors

• Dirk Feist · Herne, DE
• Kais Saadeddin · Bochum, DE

Key dates

• Filing date: Feb 11, 2003
• Grant date: Dec 13, 2005
• Expiry date: Feb 11, 2023

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F9/3482
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A shock-absorbing piston for hydraulic fixtures, especially hydraulic dashpots for motor vehicles, and separating two hydraulics chambers. The body of the piston is breached by one or more ports. The end of each is blocked by a resilient or resiliently loaded cap. The object is to improve the flow of hydraulic fluid. The ports (13 & 14) are sickle-shaped and the cap rests eccentric against the face of the piston's body (16).