Method for controlling the temperature of a jetting device
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B05B-007/22
B41J-002/045
B05B-005/16
B05B-012/00
출원번호
US-0087950
(2013-11-22)
등록번호
US-9393581
(2016-07-19)
우선권정보
EP-11168998 (2011-06-07)
발명자
/ 주소
Rasa, Mircea V.
Slot, Marcel
Van Genuchten, Henricus C. M.
Classens, Wilhelmus P. J.
출원인 / 주소
OCE-TECHNOLOGIES B.V.
대리인 / 주소
Birch, Stewart, Kolasch & Birch, LLP
인용정보
피인용 횟수 :
0인용 특허 :
6
초록▼
A method for controlling a temperature of a jetting device, the jetting device being configured to jet droplets of a fluid at a high temperature, the fluid comprising an electrically conductive fluid, wherein at least a part of the fluid is positioned in a magnetic field, includes heating the jettin
A method for controlling a temperature of a jetting device, the jetting device being configured to jet droplets of a fluid at a high temperature, the fluid comprising an electrically conductive fluid, wherein at least a part of the fluid is positioned in a magnetic field, includes heating the jetting device to an operating temperature, being defined as the temperature suitable for jetting droplets, using a heat jetting droplets by providing an electrical actuation current in the part of the fluid positioned in the magnetic field, thereby generating a force in the conductive fluid; determining upcoming jetting conditions, the upcoming jetting conditions being defined as the jetting conditions corresponding to droplets to be jetted at a time (t1) which is later than the present time (t0); determining settings for the heat based on the determined upcoming jetting conditions; controlling the heating of the jetting device using the heat in accordance with the determined settings.
대표청구항▼
1. A method for controlling a temperature of a jetting device, the jetting device being configured to jet droplets of a fluid at a high temperature, the fluid comprising an electrically conductive fluid, wherein at least a part of the fluid is positioned in a magnetic field, the method comprising th
1. A method for controlling a temperature of a jetting device, the jetting device being configured to jet droplets of a fluid at a high temperature, the fluid comprising an electrically conductive fluid, wherein at least a part of the fluid is positioned in a magnetic field, the method comprising the steps of: a. heating the jetting device to an operating temperature, being defined as the temperature suitable for jetting droplets, using a primary heater;b. jetting droplets by providing an electrical actuation current in the part of the fluid positioned in the magnetic field, thereby generating a force in the conductive fluid;c. determining upcoming jetting conditions, the upcoming jetting conditions being defined as the jetting conditions corresponding to droplets to be jetted at a time (t1) which is later than the present time (t0) based on knowledge of a desired pattern to be printed on a receiving substrate;d. determining settings for the primary heater, based on the determined upcoming jetting conditions and anticipation of a future Joule heating effect which will occur; ande. controlling the heating of the jetting device using the primary heater in accordance with the determined settings. 2. The method according to claim 1, wherein steps c, d and e are repeatedly performed during operations of the jetting device. 3. The method according to claim 1, comprising the additional steps of: f. measuring the actual temperature of the jetting device during operation of the jetting device;g. determining settings for the primary heater, based on the actual temperature of the jetting device;h. heating the jetting device using the primary heater, based on the determined settings for the primary heater. 4. The method according to claim 1, wherein a first temperature of the jetting device (T1) is controlled by controlling a second temperature of the jetting device (T2), the first temperature being a temperature of the fluid in a region where actuation currents are passed through the electrically conductive fluid, the second temperature being a bulk temperature of the electrically conductive fluid. 5. The method according to claim 4, wherein the method comprises the following additional steps: determining the second temperature (T2); andreducing an actuation frequency if T2
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이 특허에 인용된 특허 (6)
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