The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 17, 2024
Filed:
Oct. 31, 2023
Nanjing Agricultural University, Nanjing, CN;
Xiaoping Jiang, Nanjing, CN;
Weixing Cao, Nanjing, CN;
Yan Zhu, Nanjing, CN;
Jun Ni, Nanjing, CN;
Yongchao Tian, Nanjing, CN;
Bin Xu, Nanjing, CN;
Jinzhao Hu, Nanjing, CN;
Yaoyao Liao, Nanjing, CN;
Xingchen Wang, Nanjing, CN;
Ying Zhang, Nanjing, CN;
NANJING AGRICULTURAL UNIVERSITY, Nanjing, CN;
Abstract
Disclosed is a design method for a three-dimensional special-shaped jet nozzle used in the field of water-saving irrigation in farmland. According to a method based on a gas-liquid two-phase flow theory and computational fluid dynamics (CFD), a fan-shaped jet mode and a beam-shaped jet mode are coupled according to a certain area ratio and velocity ratio, which enables a cylindrical-conical coupling structure to be presented all the way from an inlet to an outlet of the nozzle, and a jet orifice is optimally designed into a three-dimensional special-shaped slotted structure; along a flowing direction of the jet orifice, V-shaped slots are formed in bottom and front portions of a midperpendicular plane, where a fan-shaped jet capable of forming a near-range water body prevails, and a strip-shaped slot is formed in an upper half portion of the midperpendicular plane, where a beam-shaped jet capable of forming a far-range water body prevails; and the V-shaped slots and the strip-shaped slot promote the formation of a narrow-band range S in a synergistic manner due to smooth joint transition therebetween. The present disclosure is particularly suitable for farmland sprinkling irrigation operations in non-planted areas such as tractor roads and field roads, and has the unique advantages of saving water and energy, and not rolling soil and crop seedlings.