Agricultural vehicle pneumatic distribution system

A distribution system for distributing material, the distribution system comprising:

• an air source having an outlet;
• and
• an air flow assembly proximate the outlet of the air source and comprising a plurality of inlet ports configured to receive air, from the air source, for a plurality of distribution lines configured to convey the material, wherein
• a first inlet port, of the plurality of inlet ports, has a first cross-sectional area configured to receive air for a first one of the distribution lines,
• a second inlet port, of the plurality of inlet ports, has a second cross-sectional area configured to receive air for a second one of the distribution lines, and
• the second cross-sectional area is different than the first cross-sectional area.

An agricultural implement comprising:

• a product source;
• a metering system configured to meter product from the product source;
• and
• a distribution system comprising:
• an air source having an outlet;
• and
• an air flow assembly proximate the outlet of the air source and comprising a plurality of inlet ports configured to receive air, from the air source, for a plurality of distribution lines configured to convey the material, wherein
• a first inlet port, of the plurality of inlet ports, has a first cross-sectional area configured to receive air for a first one of the distribution lines,
• a second inlet port, of the plurality of inlet ports, has a second cross-sectional area configured to receive air for a second one of the distribution lines, and
• the second cross-sectional area is different than the first cross-sectional.

A distribution system for an air seeder, the distribution system comprising:

• an air source having an outlet;
• and
• an air flow assembly proximate the outlet of the air source and comprising a plurality of inlet ports configured to receive air from the air source, for a plurality of distribution lines configured to convey seed, wherein
• a first inlet port, of the plurality of inlet ports, has a first cross-sectional area configured to receive air for a first one of the distribution lines,
• a second inlet port, of the plurality of inlet ports, has a second cross-sectional area configured to receive air for a second one of the distribution lines, and
• the second cross-sectional area is different than the first cross-sectional area.