US 12,225,840 B2
Sowing machine and method for separating and spreading granular material
Jan Flucke, Hude (DE); Jan-Eike Luebben, Edewecht (DE); and Thomas Wien, Stuhr (DE)
Assigned to AMAZONEN-WERKE H. DREYER SE & CO. KG, Hasbergen (DE)
Appl. No. 17/775,032
Filed by Amazonen-Werke H. Dreyer SE & Co. KG, Hasbergen (DE)
PCT Filed Nov. 2, 2020, PCT No. PCT/EP2020/080618
§ 371(c)(1), (2) Date May 6, 2022,
PCT Pub. No. WO2021/089448, PCT Pub. Date May 14, 2021.
Claims priority of application No. 102019130231.5 (DE), filed on Nov. 8, 2019.
Prior Publication US 2022/0400603 A1, Dec. 22, 2022
Int. Cl. A01C 7/08 (2006.01); A01C 7/04 (2006.01); A01C 7/06 (2006.01)
CPC A01C 7/084 (2013.01) [A01C 7/046 (2013.01); A01C 7/06 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A sowing machine for separating and spreading granular material, comprising:
metering devices with metering chambers and separating disks arranged therein for separating said granular material;
at least one blower for generating supply airflows for pressurizing said individual metering chambers via respectively associated supply ducts and for generating conveying airflows for supplying said granular material from a central container to said individual metering devices via respectively associated conveying ducts; and
separating devices which are provided in the region of said metering devices and upstream of said metering devices in order to separate the material supplied in said conveying ducts from the respective conveying airflow and to provide the resulting discharge airflows via discharge air ducts to said respectively associated metering devices for their pressurization,
wherein said supply ducts and said discharge air ducts open out separately from one another into said metering chambers that are associated jointly with said supply ducts and said discharge air ducts.