1. Combine harvesters machine having a threshing system capable of separating grain crop harvesting machine, from crop residue and the direction of grain flow falling down into the cleaning system disposed within the harvesting machine, comprising at least two screens arranged and configured to sequentially collecting and cleaning the grain, wherein the clean grain release device, capable of receiving a portion of the grain flow directly from the first sieve and release the received part of the grains with V.2. Harvesting machine according to Claim. 1 further comprising a system for receiving clean grain disposed and configured to receive a flow of grain from the last of a series of screens, wherein the release device is further characterized by a device formed to guide the discharged grain to the clean grain receiving system for to bypass at least the last of sit.3. Harvesting machine according to Claim. 1 in which clean grain release device is disposed under the front portion of the first sit.4. Harvesting machine according to Claim. 1 in which clean grain release device comprises a helical screw conveyor disposed in the upwardly open trough or lotke.5. Harvesting machine according to claim. 4, wherein the conveyor is configured to room discharged grain to clean grain conveyor mashiny.6 harvesting. Harvesting machine according to Claim. 1, wherein the purification system comprises a blower adapted to the air flow direction of air flow path upwardly through the sieve, wherein the release device clean grain is situated in the path of air1. Зерноуборочная машина, имеющая систему обмолота, выполненную с возможностью отделения зерна, убираемого уборочной машиной, от пожнивных остатков и направления падающего вниз потока зерна в систему очистки, расположенную внутри уборочной машины, содержащую по меньшей мере два сита, расположенных и выполненных с возможностью последовательного приема и очистки зернаотличающаяся устройством выпуска чистого зерна, выполненным с возможн
