US 11,725,667 B2
Air source system of an agricultural system
Kevin Michael Smith, Narvon, PA (US); and Trevor Philip Stanhope, Palos Hills, IL (US)
Assigned to CNH Industrial America LLC, New Holland, PA (US)
Filed by CNH Industrial America LLC, New Holland, PA (US)
Filed on Dec. 30, 2019, as Appl. No. 16/730,441.
Prior Publication US 2021/0203210 A1, Jul. 1, 2021
Int. Cl. F04D 29/42 (2006.01); H02K 9/04 (2006.01); F04D 25/06 (2006.01); F04D 17/08 (2006.01); H02K 7/00 (2006.01); F04D 29/58 (2006.01); A01C 7/08 (2006.01); A01C 19/02 (2006.01)
CPC F04D 29/4226 (2013.01) [A01C 7/081 (2013.01); A01C 19/02 (2013.01); F04D 17/08 (2013.01); F04D 25/06 (2013.01); F04D 29/5806 (2013.01); H02K 7/003 (2013.01); H02K 9/04 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An air source system of an agricultural system, comprising:
an enclosure comprising an inlet opening and an interior, wherein the inlet opening defines a boundary between the interior of the enclosure and an exterior environment;
a fan disposed within the interior of the enclosure and configured to establish an airflow along an airflow path of the air source system via rotation of the fan, wherein the fan comprises an end surface and blades extending from the end surface and positioned radially offset from the inlet opening of the enclosure to draw the airflow into the inlet opening along a linear direction during the rotation of the fan, and the end surface of the fan and the inlet opening are positioned at opposite ends of the blades; and
a motor assembly configured to drive the fan to rotate, wherein the motor assembly comprises a motor assembly housing positioned in the exterior environment outside of the inlet opening and within the airflow path of the air source system, the motor assembly housing has a cross-sectional area that overlaps an area of the inlet opening of the enclosure such that the airflow directed into the inlet opening along the linear direction passes over the motor assembly housing during the rotation of the fan, the cross-sectional area of the motor assembly housing is smaller than the area of the inlet opening, and the motor assembly comprises a shaft that extends between the motor assembly housing and the end surface.