초록 ▼

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 pressurization system has a meter housing which has an air inlet in fluid communication with the pneumatic distribution system and an air outlet i

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 pressurization system has a meter housing which has an air inlet in fluid communication with the pneumatic distribution system and an air outlet in fluid communication with the product tank. The meter housing has an air passage connecting the air inlet to the air outlet, providing 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 has 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 product tank to enter the pneumatic distribution system at the venturi. A venturi pressure plate has a first orifice in fluid communication with the standard airstream of the venturi port, a second orifice in fluid communication with the product tank, and a pathway between the first orifice and the second orifice for providing fluid communication between the venturi port and the product tank.

대표청구항 ▼

[ What is claimed is:] [1.] In an air seeder, a tank pressurization system for delivering pressurized air from a pneumatic distribution system to a product tank, said tank pressurization system comprising:a meter housing having a metering chamber, a product inlet in communication with the product ta

[ What is claimed is:] [1.] In an air seeder, a tank pressurization system for delivering pressurized air from a pneumatic distribution system to a product tank, said tank pressurization system comprising:a meter housing having a metering chamber, a product inlet in communication with the product tank and the metering chamber, a product outlet in communication with the metering chamber and the pneumatic distribution system, an air inlet in fluid communication with the pneumatic distribution system and an air outlet in fluid communication with the product tank; andsaid meter housing having an air passage connecting the air inlet to the air outlet for providing fluid communication between the pneumatic distribution system and the product tank, said air passage being separate from the metering chamber.