Blower assembly for a cleaning device of a combine harvester

A combine harvester, comprising:

• a chassis;
• a cleaning device comprising an upper sieve, a lower sieve, and a blower assembly, the blowing assembly actuating the upper sieve and lower sieve;
• wherein, the blower assembly comprises:
• a blower rotor configured to be rotated by a drive about a rotation axis;
• and
• a housing enclosing the blower rotor, the housing comprising side walls oriented radially to the axis of rotation, where the side walls have a central air inlet opening arranged axially to the blower rotor;
• wherein the housing comprises an outer wall extending in the circumferential direction of the blower rotor;
• wherein the outer wall comprises at least one outlet opening being connected to an outlet channel;
• wherein the housing comprises a corrugation or a rib.

A combine harvester, comprising:

• a chassis;
• a cleaning device comprising an upper sieve, a lower sieve, and a blower assembly, the blowing assembly actuating the upper sieve and lower sieve;
• and
• a drive;
• wherein, the blower assembly comprises:
• a blower rotor configured to be rotated by the drive about a rotation axis;
• and
• a housing enclosing the blower rotor, the housing comprising a side wall oriented radially to the axis of rotation, where the side wall includes an air inlet opening arranged axially to the blower rotor;
• wherein the housing comprises an outer wall extending in the circumferential direction of the blower rotor;
• wherein the outer wall comprises at least one outlet opening connected to an outlet channel;
• wherein the housing comprises a corrugation or a rib.