CONSTANT VOLUME FLUID DISCHARGING DEVICE

摘要

A device for discharging a constant volume of fluid which is relatively simple in construction and requires little space. The device comprises a cylindrical chamber with a tangential inlet to induce vortical fluid motion. Within the chamber is a ball having a specific gravity different from that of fluid and adapted to block an outlet which is disposed at the vertex of a cone-like surface disposed at one end of the chamber. When displaced from the outlet by a suitable mechanism, a combination of fluid and gravitational forces cause the ball to follow a spiral path and return to block the outlet, having discharged a certain amount of fluid. Two embodiments are described utilizing a ball having a specific gravity greater than, and less than, that of the fluid.