Espresso coffee dispensing machines using single-dose ground coffee pods

A self-cleaning espresso coffee machine using a single-dosed ground coffee pod filter comprising:

• an outer maneuvering lever (1) to lower a heat exchanger (10) using a rod (8) and a crank (3), said heat exchanger (10) has attached an upper pod-holder (11) by way of a cycler (20);
• said lowering of the eat exchanger (10) is achieving the clamping of the ground coffee pod between the upper pod-holder (11) and a lower pod-holder (13) which in turn is supported by a pod-holder plate (17);
• an accelerator (19) imbedded inside the heat exchanger (10) and rotated by the lowering of the outer maneuvering lever (1) by way of a fixed lever (23) and by way of an accelerator control lever (22);
• said accelerator's (19) rotation is preventing the lime build up and calcareous deposits inside the water circuit which includes a water heating reservoir;
• a three-way electric valve (21), operated by the lowering of the outer maneuvering lever (1), said three-way electric valve, when in an open position, allows the inlet of cold water into the water heating circuit necessary for coffee dispensing, while, in the closed position, it is emptying the water from inside the heat exchanger (10) by way of a teflon tube (24), which also draws and discharges residual water from the pod chamber, to further reduce lime build up and calcareous deposits inside the water circuit;
• controlling and adjusting means;
• a coffee dispensing spout (27);
• an external casing.