Air flow control for air seeders

专利名称：Air flow control for air seeders发明人：Benneweis, Robert K.,Bodie, Cameron

D.,Lang, Francis G.,Memory, Russel J.

申请号：EP99201584.2申请日：19990520公开号：EP0958726A3公开日：20000119

专利附图：

摘要：An air seeder (10) is provided with a control system for controlling the velocityof air flowing through the product delivery tubes (21) between the product storagetanks (12-14) and the planting mechanism (5) for delivering the product into the ground.A multiple tank air seeder would be provided with a bank of product delivery tubes (21)for each product storage tank (12-14) and with an air damper mechanism (25)incorporated into each respective bank of product delivery tubes (21). An electricactuator (32, 34, 36) is mounted on the air seeder to connect to each respective airdamper mechanism (25) and effect the movement thereof between a fully closed and afully opened position and, thereby restricting the movement of air through the product

delivery tubes (21). The control system includes a control panel (42) from which theelectric actuators (32, 34, 36) for the air damper mechanisms (25) and an electric actuator(30) for controlling the rotational speed of the fan creating the flow of air through theproduct delivery tubes (21) can be controlled. The air velocity is controlled by setting abase fan speed through the control panel (42) and then sequentially setting therotational position of each respective air damper mechanism (25) so that each bank ofproduct delivery tubes (21) can have a different resulting air velocity for proper deliveryof the product, e.g. seed or fertilizer, through the respective product delivery tubes (21).

申请人：FLEXI-COIL LTD.

地址：PO Box 1928, 1000 - 71st Street East Saskatoon Saskatchewan S7K 3S5 CA

国籍：CA

代理机构：Vandenbroucke, Alberic

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