Joshua J. Wolters,Blaine C. Ginther,Matthew W. Wolters,Albert E. Popp
申请号：
US14657514
公开号：
US20150257334A1
申请日:
2015.03.13
申请国别(地区):
US
年份:
2015
代理人:
摘要：
An improved dual metering tube systems for use in directing liquid to the row units of an agricultural implement uses metering tubes of different diameters, a pressure sensor to sense the pressure in a trunk line through which liquid is fed to the metering tubes and a controller for operating one or more valves to selectively direct liquid through only a set of small diameter tubes, only a set of large diameter tubes or both the small and large diameter tubes. Each of the small diameter tubes is paired with a respective one of the large diameter tubes and flow connected to a common outlet or nozzle associated with a respective row unit.
