Lift axle control valve
US8434773B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2010 |
| Grant date | May 7, 2013 |
| Priority date | — |
| Expiry date | Jun 21, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86574
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A lift axle control valve (200) for controlling a vehicle lift axle is provided. The valve (200) includes a vehicle port (103) configured to receive a vehicle pressure and a suspension port (106) configured to receive a suspension pressure. The valve (200) is configured to receive a lift axle control signal, actuate the lift axle control valve (200) to connect one or more lift bag output ports (121) to the vehicle port (103) and to connect one or more load bag output ports (131) to the vent port (118) if the lift axle control signal comprises a lift command, and actuate the lift axle control valve (200) to connect the one or more load bag output ports (131) to the suspension port (106) and connect the one or more lift bag output ports (121) to the vent port (118) if the lift axle control signal comprises a load command.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.