Filter purge control for HVAC fixed air circulation system
US7338357B2 · kind B2 · utility
13Cited by
19References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2006 |
| Grant date | Mar 4, 2008 |
| Priority date | — |
| Expiry date | Jul 12, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H1/00764
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A fixed air circulation system for the cab enclosure of an off-highway vehicle is disclosed. Fresh air is introduced into the cab through a fresh air inlet having a fresh air filter therein. The air inlet leads, through a manifold or fresh air duct, to the inside of the operator's compartment. When a cab door is opened, a bypass valve to the conduit is opened. When the door is closed, the air pulse created in the cab is effective, through the bypass valve or normal openings with the blower off, to dislodge dust and dirt from the filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.