| 摘要 |
<p>Liquid pump comprising: a cylinder (2); an inlet valve (4) for feeding the liquid into the cylinder; a discharge valve (5) for discharging the liquid out of the cylinder; a piston (3) sliding in said cylinder so as to draw said liquid into said cylinder and to expel the same outside the cylinder; an electric circuit (7) for heating the cylinder, with at least one resistor (70, 71) for electrically heating the liquid in the cylinder. The resistor (70, 71) is made in the form of an electrically conducting thin track deposited on or in the wall (20) of the cylinder (2). The heating is initiated before the introduction of the liquid into the cylinder, and interrupted before the full discharge of the liquid out of the cylinder.</p> |
