When a piston is moving upwards the hollow space of the shaft is facing the compartment at the back of each unit and the liquid flows inside it and in the unit; and when the piston is moving downwards the hollow space of this shaft faces the compartment containing vacuum, in front of the unit.
To prevent the liquid to completely fill also the compartment containing the vacuum a pump moves the liquid from these compartments to those at the back of the units (in the example shown specifically from compartment 1 to compartment 2, 3 to 4, 5 to 6 and from 7 to 8).
A second pump is also used to form the vacuum inside the compartments.
- external case (the space in which each piston moves is delimited by an external case which can be made of the container itself)
Position of the hollow space:
- When the liquid is moving inside it
- When the piston is moving the liquid to the compartment in front.
The following images show the movement of each piston.
Piston is moving upwards, and the fluid is passing through the shaft inside the unit.
Piston is moving downwards, and the fluid is passing through the shaft into the compartment with vacuum.
The following images show details of the device and the position of the shaft at the base of each unit during the transfer of the liquid.
Support used for the belt and synchronous belt are shown in the detailed device images.
Rotation of the shaft at the base of the units when the fluid is passing through the shaft into the unit.
Rotation of the shaft when the fluid is passing through the shaft into the compartment with vacuum.
Details of motor B and its connection to the belt are shown in the following images.
Gear which connects the motor to the belt is shown in the following images.