Trailer air dryer with purge during park feature
US6425935B1 · kind B1 · utility
8Cited by
10References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 2000 |
| Grant date | Jul 30, 2002 |
| Priority date | — |
| Expiry date | May 3, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/17
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An air dryer system for a trailer braking assembly is modified to provide a purge flow when the park brakes are actuated. An air reservoir, either the main air tank or a separate reservoir, is in operative communication with the trailer air dryer. A valve disposed at a supply end of the trailer air dryer selectively vents a purge flow to atmosphere in response to a park brake application. A restricting orifice limits the purge flow through the trailer air dryer to extend the purge time and maximize the removal of moisture from the air dryer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.