Liquid discharging method, liquid supplying method, liquid...

B - Operations – Transporting – 41 – J

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B41J 2/05 (2006.01) B41J 2/14 (2006.01)

Patent

CA 2207166

A liquid discharging method is provided with heat generating elements for creating air bubbles for discharging liquid, discharge ports arranged corresponding to the heat generating elements, first liquid flow paths conductively connected with the discharge ports, second liquid flow paths arranged corresponding to the heat generating elements, and a separation wall to separate the first and second liquid flow paths. This separation wall is provided with the free end, which is caused to be displaced to the first liquid flow side by pressure exerted by air bubbles created by the heat generating elements, thus leading the pressure toward the discharge port side for discharging liquid from the discharge ports. For this liquid discharging method, liquids are supplied to the second liquid flow paths and to the first liquid flow paths from different sides, respectively, in order to stabilize the flow of liquid for the enhancement of the discharging efficiency and power, while reducing the influence of cavitation with respect to the heat generating elements to make the life thereof longer.

Il est question d'une méthode pour faire couler un liquide au moyen d'éléments chauffants qui créent des bulles d'air pour faire couler le liquide, d'orifices de sortie correspondant aux éléments chauffants, de premiers circuits d'écoulement du liquide reliés aux orifices de sortie, de seconds circuits d'écoulement du liquide correspondant aux éléments chauffants, et d'une paroi séparant le premier circuit d'écoulement du liquide du second. La paroi comporte une extrémité libre, qui est déplacée du côté du premier circuit d'écoulement par la pression exercée par les bulles d'air créées par les éléments chauffants, ce qui dirige la pression du côté des orifices d'écoulement pour que le liquide s'écoule. Pour cette méthode, les liquides arrivent au deuxième circuit et au premier circuit de côtés différents, afin de stabiliser l'écoulement du liquide et ainsi accroître l'efficacité et la force d'écoulement tout en réduisant l'influence de la cavitation pour les éléments, ce qui aide à en prolonger la durée de vie.

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