Pressure holding valve for an air spring and air spring comprising the pressure holding valve

US12060947B2 · kind B2 · utility

Assignee

• Vibracoustic SE · DE

Inventors

• Michael Joseph Weber · Mogadore, US
• Erhard Moog · Birkenau, DE

Key dates

• Filing date: Nov 4, 2021
• Grant date: Aug 13, 2024
• Expiry date: Nov 29, 2042

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16L37/40
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A pressure retaining valve including: a first valve body for an opening of an air spring, the first valve body having an access opening; a second valve body connected to the first valve body and having a chamber fluidly communicating with the access opening and having a side outlet opening; and a return member disposed outside the access opening in the chamber for providing a bias toward the access opening; a closure part disposed in the chamber and movable from a closed condition against the bias to an open condition; and an actuator part having a head portion, a shaft section, and a flow channel, the head portion disposed outside the access opening and having a larger diameter than the access opening, wherein the stem portion is movably disposed through the access opening into the chamber, and the actuator member can move the closure member out of the closed condition.