The influence factors of the air suctioncylinder rice seeder were analyzed on the suction and seed performance in this paper.
分析了影响气吸式滚筒水稻播种器吸播种性能的因素，研制了气吸式双层滚筒水稻播种器。
2
How it works: the piston moves from left to right, form a negative pressure pump cylinder, then the suction tank fluid through the valve into the pump cylinder.
工作原理：活塞自左向右移动时，泵缸内形成负压，则贮槽内液体经吸入阀进入泵缸内。
3
Now both sides of the cylinder are used to compress gas, one side being in suction when the other is in compression.