Relay valve device and braking device for a vehicle having such a relay valve device

US12060046B2 · kind B2 · utility

Assignee

• KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH · DE

Inventors

• Markus Deeg · Eberdingen, DE
• Michael Giannuzzi · Kirchheim am Neckar, DE
• Friedbert Röther · Cleebronn, DE

Key dates

• Filing date: Jan 31, 2022
• Grant date: Aug 13, 2024
• Expiry date: Jan 31, 2042

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60T15/18
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A relay-valve (RV) device for commercial-vehicles, having: a relay-piston, in a housing, has a piston-pin (PP) extending in a longitudinal-direction (LD) from a piston-plate (PPL) and is movable in the LD in a PPL-guide, the PPL dividing a housing interior into a PP-side volume and a volume remote therefrom, a valve, which is actuated by the PP to introduce a fluid from a supply-pressure-reservoir into the PP-side volume, and an intermediate-element (IE), arranged around the PP is movable relative thereto in the LD in an IE-guide and which divides the PP-side volume into a PPL-side volume and a volume remote therefrom and limits the flow-rate of the fluid to the PPL by at least one through-opening, in which the RV device has an IE-stop, which limits the movement of the IE in the direction of the PPL and against which the IE is bringable into sealing contact by the fluid-pressure.