Taco Pumps

Taco pumps are a group of pump-sets, ie, devices that do not have moving parts. In the Taco pump pumped medium (liquid, gas or a mixture

of liquid with gas or solids) moves the external flow (Taco) of the working fluid. This transfer of energy from one stream to another directly without intermediate nodes.

Taco pump consists of the following main elements: the working nozzle, mixing chamber (neck), a diffuser inlet throat area (diffuser).

The cavity, which receives pumped liquid, usually called the working or the suction chamber. Operating nozzle (nozzles) is mainly

located coaxially with the mixing chamber or at the periphery of the mixing chamber to form a ring. Less often use a combination of the

location of the working nozzle or a multi machines. Output part (cut plane) of the working nozzle should be in the entrance of the

mixing chamber at a distance (one to three fire nozzle) before him.

The principle of Taco pump next. In the nozzle the liquid through the narrow cross-section becomes greater speed, its kinetic energy

increases, and the potential, therefore, decreases. The pressure is reduced and at a certain speed is less than atmospheric, ie, in the

suction chamber there is a vacuum. Under the action of vacuum suction fluid from the reservoir to the suction tube enters into the

suction chamber and then into the mixing chamber. In the mixing chamber is mixing the working fluid flow, while the working fluid gives

the fluid part of the energy collected from a receiving tank.

After the mixing chamber, the flow enters the diffuser where its velocity gradually decreases and the static pressure increases. Next by

pressure pipe fluid gets into a collecting tank.

Neglecting the friction head and overcoming local resistance, we can determine the power expended in pumping the liquid.