Vehicle with selectively reversible cooling fan
US9586473B2 · kind B2 · utility
6Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2013 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | Jul 26, 2035 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/0866
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A work vehicle includes a cooling fan that selectively and/or periodically runs in reverse in order to discharge accumulated dirt or debris from one or more coolers. The reverse activation of the fan is prevented from initiating when the operator of the running vehicle is outside the operator cab in the vicinity of the coolers. In an exemplary embodiment, activation of a parking brake interrupts or prevents reverse activation of the fan, though a fuel door sensor may also be used. A minimum engine speed may be specified to ensure adequate power for maximum fan power during the reverse operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.