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An Improved Mixing Chamber for Variable-Dosage Sprayers

Published online by Cambridge University Press:  12 June 2017

Lyle M. Carter  and
John H. Miller
Lyle M. Carter
Affiliation:
Agricultural Engineering Research Division, and Crops Research Division, Agr. Res. Serv., U. S. Dep. of Agr., Shafter, California
John H. Miller
Affiliation:
Agricultural Engineering Research Division, and Crops Research Division, Agr. Res. Serv., U. S. Dep. of Agr., Shafter, California
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Abstract

A variable-dosage sprayer system with a toroidal mixing chamber was constructed and used successfully in evaluation of equipment and herbicides for 2 years at the U. S. Cotton Research Station, Shafter, California. The primary advantage of this system compared to other systems is that the dilution rate is the same as predicted by theory over a wide range of conditions. Therefore, the rate of dilution can be calculated for different combinations of nozzles, or metering orifices, pressures, and spray rates without the need for direct calibration. Since the inside of the chamber is visible, some application errors are avoided and others detected that are not known with other systems. The system should be adaptable to a wide range of plot sizes and half-dosage distances by changing the volume of the toroid, the limiting factor being the availability of proper size propellers and motor.

Information

Type
Research Article
Information
Weed Science , Volume 18 , Issue 6 , November 1970 , pp. 717 - 720
Copyright
Copyright © Weed Science Society of America 

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References

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