F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
F04B 53/08 (2006.01) A47J 31/40 (2006.01) A47J 31/46 (2006.01) F04B 53/16 (2006.01) H05B 3/34 (2006.01)
Patent
CA 2711528
The invention relates to a liquid pump that comprises: 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 (2) 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.
Pompe à liquide comportant: - un cylindre (2); - une soupape d'admission (4) de liquide dans le cylindre; - une soupape d'expulsion (5) dudit liquide hors du cylindre; - un piston (2) coulissant dans ledit cylindre de manière à aspirer ledit liquide dans le cylindre, puis à l'expulser hors du cylindre; - un circuit électrique (7) de chauffage du cylindre avec au moins une résistance (70, 71) afin de chauffer électriquement le liquide dans le cylindre. La résistance (70, 71) est réalisée sous la forme de piste mince électriquement conductrice déposée sur ou dans la paroi (20) du cylindre (2). Le chauffage est entamé avant l'introduction du liquide dans le cylindre, puis interrompu avant l'expulsion complète du liquide.
Gotec Sa
Goudreau Gage Dubuc
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