How many pumps does a home coffee maker have

Single pump coffee machine:
This is the most common type of home coffee maker, and they are usually only equipped with a pump. This pump is responsible for drawing water out of the tank, heating it to the right temperature, and making coffee through coffee powder.
Double pump coffee machine:
Some high-end or specially designed home coffee makers may be equipped with two pumps. The dual pump design provides more stable pressure and temperature control, thereby improving the quality of coffee extraction. For example, the Huijia 310 coffee machine is a double pump triple heating block espresso machine.
Other configuration:
In addition to single and dual pump configurations, there are some home coffee makers with more complex pump systems, but these are generally not mainstream configurations.