Central tire inflation system for steering drive axle
US6668888B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2002 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | Jul 19, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C23/0039
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A central tire inflation system for live spindle wheel ends comprising a steering knuckle secured to a vehicle, and a spindle assembly rotatably mounted about the steering knuckle. A drive shaft is rotatably disposed through the steering knuckle and is in driving connection with the spindle assembly. A rubbing slip-ring seal is mounted into a flange of the steering knuckle and defines a seal chamber between the knuckle flange on one side and the drive shaft and the spindle assembly on the other side. An inlet passageway is formed directly through the steering knuckle in communication with the seal chamber. The inlet passageway transmits pressurized air from a pressurized air source directly to the seal chamber. An outlet passageway is formed directly through the spindle assembly and is also in direct communication with the seal chamber to establish communication between the seal chamber and a pneumatic tire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.