The quality Proportional Injector Pump, also known as jet pumps and ejectors. A pump that uses the ejection of high-pressure working fluid to deliver fluid. The Proportional Injector Pump consists of a nozzle, a mixing chamber and an expansion pipe.

For the sake of smooth operation, a vacuum chamber (also called suction chamber) is set at the throat of the quality Proportional Injector Pump. In order to allow the two fluids to mix well, there is a mixing chamber behind the vacuum chamber. During operation, the working fluid is ejected from the nozzle of the quality Proportional Injector Pump at a high speed, forming a low pressure in the vacuum chamber, so that the conveyed liquid is sucked into the vacuum chamber, and then enters the mixing chamber.
In the mixing chamber of the quality Proportional Injector Pump, the high-energy working fluid and the low-energy conveyed liquid are fully mixed, so that the energy is exchanged with each other and the speed is gradually consistent. Then it enters the diffusion chamber from the throat of the quality Proportional Injector Pump, the speed is slowed down, and the static pressure rises to achieve the purpose of conveying the liquid.