Balanced fan plenum for distributing particulate material
US11350561B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2019 |
| Grant date | Jun 7, 2022 |
| Priority date | — |
| Expiry date | Apr 26, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G53/50
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a plenum configured to evenly separate and distribute airflow generated by a fan into distribution lines of an agricultural machine. The plenum can utilize angled vanes symmetrically or asymmetrically arranged to form plenum chambers to provide a balanced airflow which contributes to maximizing fan efficiency, including power consumption and performance (airflow and static pressure). Accordingly, the plenum can be configured to separate the airflow and minimize imbalance between the lines during sectional control. The plenum height can be maintained for increased manufacturability and to prevent additional expansion. The plenum length can be configured within allowable space constraints of the machine yet allow airflow to develop upon separation into the lines. Vanes throughout the span of the plenum initially divide the airflow from the fan and maintain separation until the outlets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.