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Liquid management system

A liquid management and liquid technology, applied in the direction of jetting device, printing, jetting device, etc., can solve the problems of pressure fluctuation and difficult control, etc.

Inactive Publication Date: 2015-03-11
THE TECHNOLOGY PARTNERSHIP PLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Known disadvantages of gravity-fed ink supply systems (which can be generalized as liquid supply systems) as described in EP 2076395 are:
This in turn causes the pressure of the liquid supplied to the head to fluctuate and become difficult to control, even with the aforementioned feedback system

Method used

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Examples

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Embodiment Construction

[0057] figure 1 A liquid container 10 is shown which is supplied with liquid 1 from a remote unit (not shown) through an inlet tube 11 . Liquid leaves the container via outlet tube 12 to a liquid delivery device (not shown). In this example, the liquid delivery device may be a printhead, a spray head or any other aerosolized liquid delivery device, in the case of a printhead the liquid is typically ink, in the case of a spray head the liquid may be any suitable sprayable of liquid. Typically, although not required, the liquid is a suspension comprising sediment or poorly dispersed particulates.

[0058] The container is provided with another outlet 13 . The outlet 13 is a pumping outlet arranged at a fixed height inside the container. The outlet 13 is connected to a pump (not shown) such that when the pump is running, excess liquid and / or air from the container 10 is drawn through the outlet 13 and removed from the container 10 . In this way, the outlet 13 ensures that th...

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PUM

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Abstract

A liquid management system for supplying or receiving liquid at a controlled pressure, comprising: a closed reservoir having an inlet for receiving liquid from a first remote location and an outlet for supplying liquid to a second remote location; and a pumped outlet disposed in the reservoir and arranged to remove liquid and gas contained within the reservoir, the pumped outlet being disposed such that the level of liquid in the reservoir can be maintained at a constant height.

Description

technical field [0001] The present invention relates to a liquid management system for supplying or receiving liquid under controlled pressure, typically used in devices such as drop-on-demand printers or spray heads for generating aerosols, spraying, etc. . [0002] In particular, the present invention relates to a liquid management system capable of controlling the pressure of supplied liquid, eg to prime a liquid delivery device, and / or wherein a liquid supply can be provided at a controlled pressure to a liquid injection location. Liquids may have solid particles suspended or dispersed in them or have other additives added to them, but in all cases the end result will be a fluid that behaves substantially like a liquid. Furthermore, the present invention relates to a liquid management system for supplying or receiving a liquid comprising a large amount of precipitated particles, such as glass powder and / or ink pigments or other solids not well dispersed in the liquid. B...

Claims

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Application Information

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IPC IPC(8): B41J2/175
CPCB41J2/17556B41J2/175B41J2/17513B05B1/30B41J2/17596
Inventor 斯图亚特·哈特菲尔德彼得·詹姆斯·布朗安德鲁·维克托·波利扬茨祖克
Owner THE TECHNOLOGY PARTNERSHIP PLC