| 摘要 |
<p>The pump has a hollow tubular body (8) extending along longitudinal direction (18). A piston is movably mounted longitudinally inside the body. A solenoid valve (1) is assembled around a portion of the body. The piston comprises a permanent magnet (2) and a magnetic ring (4) forming a magnetic portion of the piston. A magnetic collar (3) guides flux lines created by the magnet arranged around the portion of the body and defines an air gap. A spring (12) is arranged in a suction chamber (10) formed by a space separating the piston from a fluid outlet (14).</p> |
