Infeed impeller for a rotary combine
US6296566A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 1999 |
| Grant date | Oct 2, 2001 |
| Priority date | — |
| Expiry date | Oct 5, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01F12/10
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An infeed assembly for a rotary combine has an impeller for directing crop materials outwardly and rearwardly. The impeller is arranged on the infeed section of the rotor and includes impeller blades that redirect the incoming mat-like crop materials into a whirling, circulatory motion and also translates the crop materials rearward towards the rotor's threshing section. Each blade has a leading edge that is swept back in two dimensions. Each leading edge is simultaneously swept back circumferentially away from the direction of impeller rotation and axially towards the rotor's threshing section. The pitch of each blade increases for a predetermined distance rearwardly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.