Valve device for a compressed air supply device and compressed air supply system
US8616231B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 7, 2008 |
| Grant date | Dec 31, 2013 |
| Priority date | — |
| Expiry date | Sep 1, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/794
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A valve device for a compressed air supply system, includes a control chamber to which compressed air may be supplied, a control piston plate delimiting the control chamber, a control piston that is fixed to the side of the control piston plate facing away from the control chamber. The piston protrudes into a discharge valve chamber of a discharge valve, provided with at least one compressed air connection. A valve head delimits the discharge valve chamber, which can be pressurized with the force of a spring in the direction of a valve seat and which can be lifted from the valve seat by the control piston counter to the force of the spring in order to open the discharge valve. The control piston and a valve housing surrounding the control piston define at least two regeneration valve chambers of a regeneration valve having at least one compressed air connection. The at least two regeneration valve chambers are either separated from each other or connected together in accordance with the position of the control piston.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.