| 摘要 |
<p>A tank pressurization system is provided for delivering pressurized air from a pneumatic distribution system to a product tank in an air seeder. The tank p ressurization system has a meter housing which has an air inlet in fluid communication wit h the pneumatic distribution system and an air outlet in fluid communication with the produc t tank. The meter housing has an air passage connecting the air inlet to the air outlet, provi ding fluid communication between the pneumatic distribution system and the product tank . A meter is rotatably mounted in the meter housing. Also, a tank pressurization system h as a venturi port in a primary distribution manifold of the pneumatic distribution system , the venturi port having a standard airstream and a venturi for encouraging product from the p roduct tank to enter the pneumatic distribution system at the venturi. A venturi pressure p late has a first orifice in fluid communication with the standard airstream of the venturi po rt, a second orifice in fluid communication with the product tank, and a pathway between the firs t orifice and the second orifice for providing fluid communication between the venturi port an d the product tank.</p> |
