Patent ID: 8128467
Filing Date: 2012-03-06
Classification: A01D

Abstract:
1. A crop residue chopping and spreading arrangement with a straw chopper ( 60 ) and at least one impeller blower ( 100 ) that is arranged downstream of the straw chopper ( 60 ), the impeller blower ( 100 ) comprising impeller paddles ( 102 ) that can be set in rotation about a rotational axis ( 108 ) and a cover ( 128 ) arranged directly adjacent to an end face of the envelope cylinder of the impeller paddles ( 102 ), wherein the impeller paddles ( 102 ) receive, during operation, crop residue from the straw chopper ( 60 ) and discharge it in a discharge region onto a field and the cover ( 128 ) is provided upstream of the discharge region, with respect to the rotational direction of the impeller paddles ( 102 ), with an opening ( 194 ) through which, during operation, the impeller paddles ( 102 ) take in air and discharge it again in the discharge region, wherein apart from the opening ( 194 ), the cover ( 128 ) covers a rear half of the impeller blower ( 100 ), the discharge region lies in an outer, rear quadrant ( 186 ) of the impeller blower ( 100 ), and the opening ( 194 ) is located in an inner, rear quadrant ( 192 ) of the impeller blower ( 100 ) and further wherein the inner, rear quadrant ( 192 ) is immediately upstream of and adjacent to the outer, rear quadrant ( 186 ).