High pressure pumps.

High pressure pumps have positive displacements and are consisting of two movable parts. Pump shaft obtains the rotational movement from the motor and transmits this movement to the driving gear on the shaft. While the driving gear transmits its motion to the driven gear in the opposite direction, the gears began to diverge each other and thereby vacuum occurs. Pump sucks the constant amount of liquid by the virtue of vacuum. Therefore, this sucked fluid flows from gear teeth spaces to the delivery outlet. While the gears meshing in the delivery outlet, pressure occurs and this motion allows the fluid transfer to the outside. During this process, pump will reveal the pressure depending on the opposite resistance shown by the system. Pump transfer liquid as much as its volume by every rotation of pump shaft. Henceforth capacity of pump is directly proportional to its size and revolution