Humpal, Richard A.,Funseth, Travis G.,Mercer, David S.
申请号：
AU2012265592
公开号：
AU2012265592B2
申请日:
2012.12.19
申请国别(地区):
AU
年份:
2017
代理人:
摘要：
#$%^&*AU2012265592B220170413.pdf#####ARRANGEMENT FOR SWITCHING NOZZLES ON THE GO FOR CONTROLLING SPRAY RATE Abstract of the Disclosure 5 An agricultural sprayer includes a spray boom equipped with a plurality of spray heads, with each head having a body defining a cavity located in fluid communication with a fluid inlet and an array of four outlets leading to four nozzles respectively having different flow rates. A nozzle-select control member is mounted for rotation in the cavity and includes a fluid passage arrangement for establishing 10 fluid connections between the inlet and different ones or combinations of the four nozzles as the control member is rotated among preselected discrete positions by an electric stepper motor, with the stepper motor being controlled in response to vehicle speed so that the spray tip capacity decreases for effecting a constant application rate as the vehicle speed decreases from a maximum permitted speed.
