Straw chopper with fan having enhanced air flow in an agricultural combine
US7404761B2 · kind B2 · utility
3Cited by
13References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2005 |
| Grant date | Jul 29, 2008 |
| Priority date | — |
| Expiry date | Jan 12, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01F12/40
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A straw chopper for an agricultural harvesting unit includes a housing, and a rotor carried by the housing. The rotor includes a center chopping section and a pair of fans respectively positioned at longitudinally outboard ends of the center chopping section. Each fan includes a hub rotatable in a direction of rotation, and a plurality of fan blades connected with the hub at a plurality of angularly spaced locations about the hub. Each fan blade has a generally U-shaped portion with a rear wall and a pair of side walls extending from the rear wall in the direction of rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.