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公开(公告)号：US20180215146A1
公开(公告)日：2018-08-02
申请号：US15747966
申请日：2015-10-30
发明人： Nicholas Matthew Cooper McGuinness , Alexander Govyadinov , Chris Bakker , Lawrence H. White , Paul A. Richards
IPC分类号： B41J2/14
CPC分类号： B41J2/1404 , B41J2/14056 , B41J2202/11 , B41J2202/12
摘要： According to an example, a fluid ejection device may include a fluid feed slot, a plurality of fluid ejection chambers in fluid communication with the fluid feed slot, a plurality of drop ejecting elements, in which a drop ejecting element of the plurality of drop ejecting elements is positioned within each of the plurality of fluid ejection chambers, a fluid circulation channel in fluid communication at a first end of the fluid circulation channel with the fluid feed slot and in fluid communication at multiple second ends of the fluid circulation channel with the plurality of fluid ejection chambers, and a fluid circulating element within the fluid circulation channel. The fluid ejection device may also include a bubble dissipating structure positioned within the fluid circulation channel outside of the plurality of fluid ejection chambers.
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公开(公告)号：US20180133746A1
公开(公告)日：2018-05-17
申请号：US15870843
申请日：2018-01-12
CPC分类号： B05C5/02 , B41J2/1404 , B41J2/14201 , B41J2/175 , B41J2/17563 , B41J2/17596 , B41J2002/14403 , B41J2002/14467 , B41J2202/12
摘要： The examples provide a fluid ejection apparatus that includes a fluid slot; a passage, a drop generator and a fluid circulation pump. The passage has an inlet connected to the fluid slot and an outlet spaced from the inlet and connected to the fluid slot. The passage as a first portion extending in a first direction from the inlet and a second portion extending from the first portion to the outlet in a second direction, opposite to the first direction. A filter is within the fluid slot across the inlet.
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公开(公告)号：US20180104953A1
公开(公告)日：2018-04-19
申请号：US15834353
申请日：2017-12-07
发明人： James A. Feinn , David P. Markel , Albert Nagao , Thomas R. Strand , Paul A. Richards , Lawrence H. White , Erik D. Torniainen
IPC分类号： B41J2/14
CPC分类号： B41J2/1433 , B41J2/14016 , B41J2002/14387 , B41J2002/14475 , B41J2202/11
摘要： In some examples, a fluid nozzle includes an aperture comprising a first lobe that is shaped as an ellipse, and a second lobe that has a non-circular shape and has a different size than a size of the first lobe. The fluid nozzle further includes protrusions between the first and second lobes extending inward and forming a throat between the first and second lobes.
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公开(公告)号：US10717274B2
公开(公告)日：2020-07-21
申请号：US16685818
申请日：2019-11-15
摘要： A fluid ejection device includes a fluid slot, a fluid ejection chamber communicated with the fluid slot, a drop ejecting element within the fluid ejection chamber, a fluid circulation channel communicated at one end with the fluid slot and communicated at another end with the fluid ejection chamber, a fluid circulating element within the fluid circulation channel, and a channel wall separating the fluid ejection chamber and the fluid circulation channel. The fluid circulation channel includes a channel loop, and a width of the channel wall is based on a width of the channel loop and a width of the fluid ejection chamber.
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公开(公告)号：US10336070B2
公开(公告)日：2019-07-02
申请号：US15747966
申请日：2015-10-30
发明人： Nicholas Matthew Cooper McGuinness , Alexander Govyadinov , Chris Bakker , Lawrence H. White , Paul A. Richards
IPC分类号： B41J2/14
摘要： According to an example, a fluid ejection device may include a fluid feed slot, a plurality of fluid ejection chambers in fluid communication with the fluid feed slot, a plurality of drop ejecting elements, in which a drop ejecting element of the plurality of drop ejecting elements is positioned within each of the plurality of fluid ejection chambers, a fluid circulation channel in fluid communication at a first end of the fluid circulation channel with the fluid feed slot and in fluid communication at multiple second ends of the fluid circulation channel with the plurality of fluid ejection chambers, and a fluid circulating element within the fluid circulation channel. The fluid ejection device may also include a bubble dissipating structure positioned within the fluid circulation channel outside of the plurality of fluid ejection chambers.
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公开(公告)号：US11230097B2
公开(公告)日：2022-01-25
申请号：US16834546
申请日：2020-03-30
摘要： A fluid ejection device includes a fluid slot, at least one fluid ejection chamber communicated with the fluid slot, a drop ejecting element within the at least one fluid ejection chamber, a fluid circulation channel communicated with the fluid slot and the at least one fluid ejection chamber, and a fluid circulating element communicated with the fluid circulation channel. The fluid circulating element is to provide on-demand circulation of fluid from the fluid slot through the fluid circulation channel and the at least one fluid ejection chamber.
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公开(公告)号：US20210031185A1
公开(公告)日：2021-02-04
申请号：US16965702
申请日：2018-03-13
摘要： A method of operating a microfluidic device may include activating a fluid ejection actuator to eject an amount of fluid from a fluid ejection chamber through a nozzle, and activating a pump located within a micro-fluidic channel fluidically coupled to the fluid ejection actuator during a fluid ejection event to create a positive net flow from the pump to the fluid ejection chamber. The fluid ejection event may include a plurality of ejections of fluid from the nozzle.
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公开(公告)号：US10532580B2
公开(公告)日：2020-01-14
申请号：US16221431
申请日：2018-12-14
摘要： A fluid ejection apparatus may include a drop generator to eject fluid droplets in a vertical direction and a fluid channel containing the drop generator. The fluid channel may include a vertical inlet through which fluid is to enter the fluid channel and a vertical outlet through which fluid not ejected by the drop generator is to be circulated out of the fluid channel.
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公开(公告)号：US20200079085A1
公开(公告)日：2020-03-12
申请号：US16685818
申请日：2019-11-15
摘要： A fluid ejection device includes a fluid slot, a fluid ejection chamber communicated with the fluid slot, a drop ejecting element within the fluid ejection chamber, a fluid circulation channel communicated at one end with the fluid slot and communicated at another end with the fluid ejection chamber, a fluid circulating element within the fluid circulation channel, and a channel wall separating the fluid ejection chamber and the fluid circulation channel. The fluid circulation channel includes a channel loop, and a width of the channel wall is based on a width of the channel loop and a width of the fluid ejection chamber.
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公开(公告)号：US10189047B2
公开(公告)日：2019-01-29
申请号：US15870843
申请日：2018-01-12
摘要： The examples provide a fluid ejection apparatus that includes a fluid slot; a passage, a drop generator and a fluid circulation pump. The passage has an inlet connected to the fluid slot and an outlet spaced from the inlet and connected to the fluid slot. The passage as a first portion extending in a first direction from the inlet and a second portion extending from the first portion to the outlet in a second direction, opposite to the first direction. A filter is within the fluid slot across the inlet.
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