Patent ID: 11939982
Assignee: CNH INDUSTRIAL AMERICA LLC
Field: Other special machines (Mechanical engineering)
Classification: CPC F  A | IPC A  F

Claim 0:
1. A system for distributing particulate material from an agricultural machine, the system comprising:
a fan configured to provide an airflow in a supply line for distributing particulate material;
a hydraulic system configured to drive the fan at a plurality of fan speeds, the hydraulic system comprising:
a hydrostatic drive arrangement including a variable axial piston pump; and

a control system configured to control the hydraulic system, the control system executing a program stored in a non-transient medium operable to:
determine a given product application rate for distributing the particulate material;
determine a given ground speed of the agricultural machine;
determine a fan speed for achieving the given product application rate at the given ground speed; and
control the hydraulic system to drive the fan at the fan speed.