| 摘要 |
<p>the present invention concerns the field of volumetric pumps, in particular those that are used to pump dense food products in the form of pieces, such as fruit or vegetable pieces.The pump comprises a cylindrical skirt in which a piston swings moving with reciprocating motion.At one end of the cylindrical skirt a cylindrical case is obtained, which has a longer diameter than that of the skirt. The cylindrical case hosts a cylindrical valve that rotates around an axis that coincides with the translational axis of the piston.</p> |
