Oscillating Nozzle Using Progressing Cavity Motor

The patent employs a progressing cavity displacement motor that uses fluid pressure differentials to drive the rotor. The motor converts fluid flow energy into mechanical motion through the interaction between the rotor lobes and stator cavities, eliminating the need for external power sources or complex mechanical drive systems. This hydraulic actuation method achieves versatile spray patterns while keeping the overall device relatively simple.

The progressing cavity motor design allows a single device to generate multiple spray patterns by varying the rotor and stator configurations. The same basic motor structure can produce linear, fan, cone, and other spray patterns through different lobe/cavity arrangements, making the system multi-functional without requiring separate mechanisms for each spray pattern type.

The motor is divided into discrete, modular components - the rotor with its lobes and the stator with its cavities. Each component can be manufactured separately using standard molding or machining processes, then assembled together. This segmentation allows for easy customization of spray patterns by simply changing the rotor/stator configurations without requiring complete redesign of the entire system.

The patent achieves different spray patterns by changing geometric parameters such as the number of rotor lobes, stator cavities, their relative positions, and dimensional proportions. These parameter variations can be implemented through standard manufacturing techniques like injection molding with different mold configurations or machining operations, making customization relatively straightforward without requiring complex fabrication processes.