Compressed air control apparatus for compressed air systems of motor vehicles
US6966341B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 9, 2003 |
| Grant date | Nov 22, 2005 |
| Priority date | — |
| Expiry date | Apr 23, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/87893
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A compressed air control apparatus for compressed air systems of motor vehicles includes a pressure controller (10) for controlling the pressure, an air dryer (6) for drying the compressed air flowing through the compressed air control apparatus and a multi circuit protection valve (9) for supplying a plurality of circuits (I, II, III, IV, V) with compressed air. The multi circuit protection valve (9) includes at least one solenoid valve (35) including a deaerating connection (15) leading to the atmosphere and a plurality of overflow valves (18). Each of the overflow valves (18) is associated with one of the circuits (I, II, III, IV or V). The overflow valves (18) include a valve body (20), a flow chamber (23), a rear chamber (34), a first effective surface (22), a second effective surface (27), a third effective surface (33) and a spring (31) being located in the rear chamber (34). The valve body (20) separates the flow chamber (23) from the rear chamber (34). The valve body (20) has a first side facing the flow chamber (23) and a second side facing away from the flow chamber (23). The overflow valve (18) has an opening pressure being greater than its closing pressure to allow for…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.