A piston pump controlled by electro - magnet, in particular in order to deliver a liquid fuel in the heating appliances

摘要

The invention relates to a pump, a piston controlled by electro - magnet, in particular in order to deliver a liquid fuel in the heating appliances. / p & & p & pump characterized in that an elastic element 28 is interposed between a pressure of the coupling 12 and a cylinder 8, which present, the dimension of the output, a diametral enlargement 21 to be applied against said element 28, and that in order to lock this element 28 has a permanent pressure of the connector 12 comprises a lug 19 of annulo - circular, penetrating in the body 15 of a valve and trapping by - the top, side outlet end of said cylinder 8.