US 12,457,931 B2
Combine harvester with system and method for removing accumulated material from a feederhouse
Thomas Smed Bojsen, Randers (DK)
Assigned to AGCO International GmbH, Neuhausen (CH)
Filed by AGCO International GmbH, Neuhausen (CH)
Filed on Jun. 23, 2022, as Appl. No. 17/808,431.
Claims priority of application No. 2109397 (GB), filed on Jun. 30, 2021.
Prior Publication US 2023/0000017 A1, Jan. 5, 2023
Int. Cl. A01D 41/127 (2006.01); A01D 41/12 (2006.01); A01D 61/00 (2006.01)
CPC A01D 41/1274 (2013.01) [A01D 41/1252 (2013.01); A01D 61/008 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A combine harvester comprising:
a feederhouse mounted to a chassis and adapted at a front end to support a crop gathering header in a manner that places a front inlet in communication with a discharge opening of the header, the feederhouse defining a crop conveying passage and housing a conveyor;
a duct mounted on the feederhouse and defining a channel that is in communication with the crop conveying passage via a first opening wherein the first opening has an associated first closure element that is movable between an open position and a closed position;
a fan arranged to move air through the duct, the fan being operable in a first direction to create a suction airflow to extract dust from the crop conveying passage and discharge the dust through the duct,
wherein the duct comprises a second opening having an associated second closure element that is movable between an open position and a closed position,
wherein the fan is selectively operable in a second direction to create a blowing airflow to open the second closure element and vent air through the second opening.