Rotary wheel-end assembly for tire inflation system
US4883106A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 1989 |
| Grant date | Nov 28, 1989 |
| Priority date | — |
| Expiry date | Jan 19, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C23/00363
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A rotary wheel-end assembly (90) is provided that includes a disc-like member (26) that when secured to a vehicular wheel hub (16) is operative to rotate relative a stationary axle spindle as well as provide a first chamber (28) about the end of axle (2). Assembly (90) has a passageway (36) therethrough for conveying pressurized air to the tire from axle (2) and includes a cover (42) secured in spaced-apart relationship to a side of member (26) facing away from axle (2) to provide a second chamber (46). Chambers (28) and (46) are adapted to hold a lubricant for lubricating frictional interaction between rotary assembly (90) and stationary axle (2) as well as wheel bearings (12) and at least one opening (40) is provided through member (26) for providing fluid communication between chambers (28) and (46) in addition to the preferable inclusion of at least one resilient closable member (48) through cover (42) for conveying lubricant into chamber (46).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.