Rotor assembly for an axial-flow combine
US4986794A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 3, 1990 |
| Grant date | Jan 22, 1991 |
| Priority date | — |
| Expiry date | Apr 3, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01F7/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An axial-flow combine with an improved rotor assembly which is configured to be less sensitive to crop material conditions. The rotor assembly includes a rotor casing with a rotor rotatably arranged therewithin. At its forward end, the rotor casing is provided with a transition section having a forward crop receiving end and an aft end. The rotor is provided with an impeller section which leads in a downstream direction to a threshing section. The impeller section of the rotor includes a plurality of impeller blades arranged within the transition section of the rotor assembly. A rearward end of each blade terminates upstream of the aft end of the transition section whereby allowing threshing instrumentalities on the threshing section of the rotor to extend into the transition section thereby extending the threshing area of the rotor thus enhancing crop material flow through the rotor assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.