FLUID DOSING MECHANISMS AND SYSTEMS

A fluid dosing mechanism may include a dosing vessel, a dosing cylinder, a dial, and a piston. The dosing vessel defines a fluid chamber. The fluid chamber includes an inlet and an outlet. The dosing cylinder is coupled to the dosing vessel and defines an end slidable within the fluid chamber. The dial is rotatably coupled to the dosing cylinder and configured to slide the dosing cylinder to define a dosing volume within the fluid chamber against the end of the dosing cylinder. The dosing volume is fluidically coupled to the inlet and the outlet. The piston is movable between (i) a retention position to retain fluid in the dosing volume and (ii) a discharge position to discharge fluid from the dosing volume of the fluid chamber through the outlet. A cart assembly may include a fluid dosing system including a system housing and the fluid dosing mechanism.