Rear rotor cone
US8075377B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2008 |
| Grant date | Dec 13, 2011 |
| Priority date | — |
| Expiry date | Jan 19, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01F7/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention provides an improved threshing and separating mechanism and method for a combine. The mechanism includes an elongated rotor mounted for rotation about a rotor axis within a rotor housing on the combine. The rotor has a threshing portion and a separating portion. The housing has a threshing section and a separating section corresponding to the threshing portion and the separating portion. The housing surrounds the rotor and is spaced from the rotor to form an annular space between the rotor and the housing for crop material to flow through in an axial crop flow direction from an inlet end of the housing to an outlet end of the housing. A rear portion of the rotor is tapered in a rearward direction to create an increased volume at the outlet of the rotor housing to prevent stagnation of flow of straw material in the transition of velocity between the housing outlet and the straw beater.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.