System and method for adjusting air flow in air seeding applications
US6584920B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 17, 2002 |
| Grant date | Jul 1, 2003 |
| Priority date | — |
| Expiry date | Sep 17, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S111/904
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A system for maintaining an appropriate air flow in an air stream in an air seeder. A fan provides an air stream to carry agricultural materials for distribution across a width of a seeding implement. A tank contains a granular agricultural material and a metering device dispenses the material into the air stream. The system is calibrated such that a known weight of material is dispensed for each revolution of the metering device whereby the rotational speed of the metering device multiplied by the known weight per revolution results in a known per minute rate of agricultural material being dispensed into the air stream. A microprocessor is programmed to derive an appropriate fan speed for the per minute rate of agricultural material being dispensed and send a signal to a fan control to adjust the speed of the fan to correspond to the appropriate fan speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.