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1. (WO2018224510) CHAFF/STRAW SPREADER SYSTEM OF AN AGRICULTURAL HARVESTER
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CLAIMS:

1 . A spreader system (150) for use in an agricultural harvester (10) having a threshing system (24) and a cleaning system (26), the spreader system (150) comprising:

- a chopper (152) for the chopping of straw from the threshing system (24);

- a chaff spreader system (154) configured to receive a flow of chaff (C) from the cleaning system (26); and

- a straw spreader system (156) configured to receive a flow of straw (S) from the chopper (152);

characterized in that

the chaff spreader system (154) is configured to emit a chaff airflow stream (CAS) in a first flow path (FP1 ), and the straw spreader system (156) is configured to emit a straw airflow stream (SAS) in a second flow path (FP2), the first flow path (FP1 ) and the second flow path (FP2) intersecting at a place of confluence (CON) apart from the chaff spreader system (154) and the straw spreader system (156).

2. The spreader system (150) according to claim 1 , wherein the chaff spreader system (154) includes:

- a right blower (158R) configured to emit a right portion of the chaff airflow stream (CAS); and

- a left blower (158L) configured to emit a left portion of the chaff airflow stream (CAS); and

- wherein the straw spreader system (156) includes:

- a right thrower (160R) configured to emit a right portion of the straw airflow stream (SAS); and

- a left thrower (160L) configured to emit a left portion of the straw airflow stream (SAS).

3. The spreader system (150) according to claim 2, wherein the blowers (158R, 158L) and the throwers (160R, 160L) comprise generally vertical rotation axes and are configured for rotation thereabout.

4. The spreader system (150) according to claim 3, wherein the blowers (158R, 158L) are configured to rotate in counter-rotational directions to each other and the throwers (160R, 160L) are configured to rotate in counter-rotational directions to each other.

5. The spreader system (150) according to claims 1 to 4, wherein the second flow path (FP2) is generally perpendicular to a longitudinal axis (LA) of the spreader system (150).

6. The spreader system (150) according to claim 5, wherein the first flow path (FP1 ) is at an obtuse angle to the longitudinal axis (LA).

7. The spreader system (150) according to claims 1 to 6, wherein the chaff airflow stream (CAS) has a velocity (V1 ) prior to the place of confluence (CON) and the straw airflow stream (SAS) has a velocity (V2) prior to the place of confluence (CON) the velocity (V1 ) of the chaff airflow stream (CAS) being configured to be generally slower than the velocity (V2) of the straw airflow stream (SAS).

8. The spreader system (150) according to claim 7, wherein at the place of confluence (CON) the chaff airflow stream (CAS) and the straw airflow stream (SAS) merge and the merged flow starts along a path that generally extends along the second flow path (FP2).

9. The spreader system (150) according to claims 1 to 8, wherein at the place of confluence (CON) the chaff airflow stream (CAS) and the straw airflow stream (SAS) exhibit increased chaotic movement.

10. The spreader system (150) according to claims 2 to 9, wherein the throwers (160R, 160L) each include a plurality of rotatable V-shaped paddles (162).

1 1 . The spreader system (150) according to claim 10, wherein the V-shaped paddles (162) have an upper portion (164) and a lower portion (166), the upper portion (164) having a longer dimension (164D) from the vertex (162V) than a dimension (166D) of the lower portion (166).

12. The spreader system (150) according to claims 10 to 1 1 , wherein the throwers (160R, 160L) each additionally include a deflector (168) placed radially outward from the paddles (162), the deflector (168) being configured to assist in directing the straw airflow stream (SAS) along the second flow path (FP2).

13. The spreader system (150) according to claim 12, wherein the deflectors (168) each have a trailing corner that is proximate in height to a location of the vertices of the upper portion (164) and the lower portion (166) of the V-shaped paddles (162).

14. The spreader system (150) according to claim 13, wherein an angle between the upper portion (164) and the lower portion (166) of the V-shaped paddles (162) is approximately 90 degrees.

15. An agricultural harvester (10) comprising a spreader system (150) according to claim 1 , wherein the agricultural harvester (10) is an agricultural combine (10).