CN1389304A - Fluid jetting device and method for jetting liquid drops in different size - Google Patents
Fluid jetting device and method for jetting liquid drops in different size Download PDFInfo
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- CN1389304A CN1389304A CN 01119779 CN01119779A CN1389304A CN 1389304 A CN1389304 A CN 1389304A CN 01119779 CN01119779 CN 01119779 CN 01119779 A CN01119779 A CN 01119779A CN 1389304 A CN1389304 A CN 1389304A
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Abstract
The present invention relates to a fluid spray equipment capable of spraying drops with different size and its method. The fluid spraying device is communicated with fluid storage tank, and the fluid spraying device includes base plate, orifice layer, first nozzle group and second nozzle group. Said base plate includes manifold for receiving fluid from fluid storage tank. The orifice layer is placed in the top side of said base plate, and several first and second fluid cavities are formed between the top side of base plate and orifice layer, and on the orifice layer several first orifices and second orifices are set. Said invention utilizes the change of fluid cavity structure size, distance between adjacent heaters and aperture of orifice to make said fluid spray equipment produce drops with different size.
Description
The present invention relates to a kind of fluid ejection apparatus, particularly relate to a kind of fluid ejection apparatus and method that penetrates liquid drops in different size.
Now, the fluid ejection apparatus that can penetrate liquid drops in different size extensively applies to improve the efficiency of combustion of miniature fuel oil engine, or is used to increase in the utilization of printing of inkjet printer variation.For example: can make ink-jet printer come mimeograph documents, and thus, not only can make the colourity variation of its typescripts more various, the speed in the time of also can accelerating to print colourity simultaneously by the ink droplet of different sizes.
Please refer to Fig. 1, Fig. 1 is the schematic diagram of existing fluid ejection apparatus 10.Fluid ejection apparatus 10 is that company of Canon (Canon) discloses in No. 4251824 " the liquid ink-jet recording of adjustable heating viscosity " (Liquid jet recording method with variable thermal Viscosity modulation) of U.S. Pat, it utilizes, and a plurality of heating element heaters (heatgenerating bodies) 21～25 provide energy in regular turn or independently on fluid cavity (liquid chamber) 12 axis, make the different and drops 40 that squeeze out different amounts of a plurality of bubbles (foams) 31～35 produce in the fluid cavity 12 original position with mimeograph documents.But because of placing many heating element heaters 21～25 in the same fluid cavity 12 of fluid ejection apparatus 10, in the time will improving the resolution ratio of 10 mimeograph documents of fluid ejection apparatus, fluid ejection apparatus 10 certainly will need structure and the heating element heaters that comprise several fluid cavitys 12 more again, and this will make manufacturing fluid ejection apparatus 10 become more difficult.In addition, fluid ejection apparatus 10 also has the shortcoming of the satellite droplet of being easy to generate (Satellite droplet), and when fluid ejection apparatus 10 produced satellite droplet, satellite droplet will cause 10 typescripts obfuscations of fluid ejection apparatus.The satellite droplet that fluid ejection apparatus 10 is produced is trailed in main drop back, when fluid ejection apparatus 10 and file are in the relative motion state, satellite droplet is beaten and can slightly be different from main drop in the position on the file and beat position on file, therefore, the print quality of fluid ejection apparatus 10 will be subjected to the influence of satellite droplet.
The object of the present invention is to provide a kind of fluid ejection apparatus that penetrates liquid drops in different size, it can be used in the design of ink gun, with the shortcoming of avoiding above-mentioned existing ink gun to be produced.
The object of the present invention is achieved like this, and a kind of fluid ejection apparatus promptly is provided, and it is connected with a fluid storage tank, and this fluid ejection apparatus includes: a substrate, and it includes a manifold, is used for receiving the fluid in this fluid reservoir; One ejection layer is located at the top side of this substrate, forms a plurality of first-class body cavitys and a plurality of second fluid cavity with the top side of this substrate; One first nozzle group, it includes a plurality of first nozzles, and to be located on this ejection layer corresponding to the mode of these a plurality of first-class body cavitys, each first nozzle includes: one first spray orifice; One first bubble generator is located at a side of this first spray orifice, is used for producing one first bubble; And one second bubble generator, be located at the opposite side of this first spray orifice, be used for producing the back and produce one second bubble at this first bubble, this second bubble can be pushed out the fluid between first bubble and this second bubble this first spray orifice and form one first drop; And one second nozzle group, it includes a plurality of second nozzles, and to be located on this ejection layer corresponding to the mode of these a plurality of second fluid cavitys, each second nozzle includes: one second spray orifice; One the 3rd bubble generator is located at a side of this second spray orifice, is used for producing one the 3rd bubble; And one the 4th bubble generator, be located at the opposite side of this second spray orifice, be used for producing the back and produce one the 4th bubble in the 3rd bubble, the 4th bubble can be pushed out the fluid between the 3rd bubble and the 4th bubble this second spray orifice and form one second drop; Wherein this first-class body cavity is different with the physical dimension of this second fluid cavity, and makes the size of this first drop different with this second drop.
The present invention also provides a kind of fluid ejection apparatus, and it is connected with a fluid storage tank, and this fluid ejection apparatus includes: a substrate, and it includes a manifold, is used for receiving the fluid in this fluid reservoir; One ejection layer is located at the top side of this substrate, forms a plurality of first-class body cavitys and a plurality of second fluid cavity with the top side of this substrate; One first nozzle group, it includes a plurality of first nozzles, and to be located on this ejection layer corresponding to the mode of these a plurality of first-class body cavitys, each first nozzle includes: one first spray orifice; One first bubble generator is located at a side of this first spray orifice, is used for producing one first bubble; And one second bubble generator, be located at the opposite side of this first spray orifice, be used for producing the back and produce one second bubble in this first bubble, this second bubble can be pushed out the fluid between first bubble and this second bubble this first spray orifice and form one first drop; And one second nozzle group, it includes a plurality of second nozzles, and to be located on this ejection layer corresponding to the mode of these a plurality of second fluid cavitys, each second nozzle includes: one second spray orifice; One the 3rd bubble generator is located at a side of this second spray orifice, is used for producing one the 3rd bubble; And one the 4th bubble generator, be located at the opposite side of this second spray orifice, be used for producing the back and produce one the 4th bubble in the 3rd bubble, the 4th bubble can be pushed out the fluid between the 3rd bubble and the 4th bubble this second spray orifice and form one second drop; Wherein the distance between its first and second bubble generator of this first nozzle is greater than the distance between its 3rd and the 4th bubble generator of this second nozzle, and makes this first drop greater than this second drop.
The present invention also provides a kind of fluid ejection apparatus, and it is connected with a fluid storage tank, and this fluid ejection apparatus includes: a substrate, and it includes a manifold, is used for receiving the fluid in this fluid reservoir; One ejection layer is located at the top side of this substrate, forms a plurality of first-class body cavitys and a plurality of second fluid cavity with the top side of this substrate; One first nozzle group, it includes a plurality of first nozzles, and to be located on this ejection layer corresponding to the mode of these a plurality of first-class body cavitys, each first nozzle includes: one first spray orifice; One first bubble generator is located at a side of this first spray orifice, is used for producing one first bubble; And one second bubble generator, be located at the opposite side of this first spray orifice, be used for producing the back and produce one second bubble in this first bubble, this second bubble can be pushed out the fluid between first bubble and this second bubble this first spray orifice and form one first drop; And one second nozzle group, it includes a plurality of second nozzles, and to be located on this ejection layer corresponding to the mode of these a plurality of second fluid cavitys, each second nozzle includes: one second spray orifice; One the 3rd bubble generator is located at a side of this second spray orifice, is used for producing one the 3rd bubble; And one the 4th bubble generator, be located at the opposite side of this second spray orifice, be used for producing the back and produce one the 4th bubble in the 3rd bubble, the 4th bubble can be pushed out the fluid between the 3rd bubble and the 4th bubble this second spray orifice and form one second drop; Wherein this first spray orifice is greater than this second spray orifice, and makes this first drop greater than this second drop.
The present invention also provides a kind of method of utilizing a fluid injection apparatus to produce liquid drops in different size, and this fluid ejection apparatus is connected with a fluid storage tank and includes: a substrate, and it includes a manifold, is used for receiving the fluid in this fluid reservoir; One ejection layer is located at the top side of this substrate, forms a plurality of first-class body cavitys and a plurality of second fluid cavity with the top side of this substrate, and these a plurality of first-class body cavitys are greater than these a plurality of second fluid cavitys; One first nozzle group, it includes a plurality of first nozzles, and to be located on this ejection layer corresponding to the mode of these a plurality of first-class body cavitys, each first nozzle includes: one first spray orifice is formed on this substrate; One first bubble generator is located at a side of this first spray orifice; And one second bubble generator, be located at the opposite side of this first spray orifice; And one second nozzle group, it includes a plurality of second nozzles, and to be located on this ejection layer corresponding to the mode of these a plurality of second fluid cavitys, each second nozzle includes: one second spray orifice is formed on this substrate; One the 3rd bubble generator is located at a side of this second spray orifice, and one the 4th bubble generator, is located at the opposite side of this second spray orifice; This method comprises following step: make this first bubble generator produce one first bubble in corresponding first-class body cavity; After this first bubble produces, make this second bubble generator in corresponding first-class body cavity, produce one second bubble, this second bubble can be pushed out the fluid between first bubble and this second bubble this first spray orifice and form one first drop; Make the 3rd bubble generator in corresponding second fluid cavity, produce one the 3rd bubble; And after the 3rd bubble produces, make the 4th bubble generator produce one the 4th bubble in corresponding second fluid cavity, the 4th bubble can be pushed out the fluid between the 3rd bubble and the 4th bubble this second spray orifice and form second drop less than this first drop.
The present invention also provides a kind of method of utilizing a fluid injection apparatus to produce liquid drops in different size, and this fluid ejection apparatus is connected with a fluid storage tank and includes: a substrate, and it includes a manifold, is used for receiving the fluid in this fluid reservoir; One ejection layer is located at the top side of this substrate, forms a plurality of first-class body cavitys and a plurality of second fluid cavity with the top side of this substrate; One first nozzle group, it includes a plurality of first nozzles, and to be located on this ejection layer corresponding to the mode of these a plurality of first-class body cavitys, each first nozzle includes: one first spray orifice is formed on this substrate; One first bubble generator is located at a side of this first spray orifice; And one second bubble generator, be located at the opposite side of this first spray orifice; And one second nozzle group, it includes a plurality of second nozzles, and to be located on this ejection layer corresponding to the mode of these a plurality of second fluid cavitys, each second nozzle includes: one second spray orifice is formed on this substrate; One the 3rd bubble generator is located at a side of this second spray orifice, and one the 4th bubble generator, is located at the opposite side of this second spray orifice; Wherein the distance between its first and second bubble generator of this first nozzle is greater than the distance between its 3rd and the 4th bubble generator of this second nozzle; This method comprises following step: make this first bubble generator produce one first bubble in corresponding first-class body cavity; After this first bubble produces, make this second bubble generator in corresponding first-class body cavity, produce one second bubble, this second bubble can be pushed out the fluid between first bubble and this second bubble this first spray orifice and form one first drop; Make the 3rd bubble generator in corresponding second fluid cavity, produce one the 3rd bubble; And after the 3rd bubble produces, make the 4th bubble generator produce one the 4th bubble in corresponding second fluid cavity, the 4th bubble can be pushed out the fluid between the 3rd bubble and the 4th bubble this second spray orifice and form second drop less than this first drop.
The present invention also provides a kind of method of utilizing a fluid injection apparatus to produce liquid drops in different size, and this fluid ejection apparatus is connected with a fluid storage tank and includes: a substrate, and it includes a manifold, is used for receiving the fluid in this fluid reservoir; One ejection layer is located at the top side of this substrate, forms a plurality of first-class body cavitys and a plurality of second fluid cavity with the top side of this substrate; One first nozzle group, it includes a plurality of first nozzles, and to be located on this ejection layer corresponding to the mode of these a plurality of first-class body cavitys, each first nozzle includes: one first spray orifice is formed on this substrate; One first bubble generator is located at a side of this first spray orifice; And one second bubble generator, be located at the opposite side of this first spray orifice; And one second nozzle group, it includes a plurality of second nozzles, and to be located on this ejection layer corresponding to the mode of these a plurality of second fluid cavitys, each second nozzle includes: one second spray orifice is formed on this substrate; One the 3rd bubble generator is located at a side of this second spray orifice, and one the 4th bubble generator, is located at the opposite side of this second spray orifice; Wherein this first spray orifice is greater than this second spray orifice; This method comprises following step: make this first bubble generator produce one first bubble in corresponding first-class body cavity; After this first bubble produces, make this second bubble generator in corresponding first-class body cavity, produce one second bubble, this second bubble can be pushed out the fluid between first bubble and this second bubble this first spray orifice and form one first drop; Make the 3rd bubble generator in corresponding second fluid cavity, produce one the 3rd bubble; And after the 3rd bubble produces, make the 4th bubble generator produce one the 4th bubble in corresponding second fluid cavity, the 4th bubble can be pushed out the fluid between the 3rd bubble and the 4th bubble this second spray orifice and form second drop less than this first drop.
The present invention also provides a kind of fluid ejection apparatus, and it is connected with a fluid storage tank, and this fluid ejection apparatus includes: a substrate, and it includes a manifold, is used for receiving the fluid in this fluid reservoir; One ejection layer is located at the top side of this substrate, forms a first-class body cavity and one second fluid cavity with the top side of this substrate; One first nozzle, to be located on this ejection layer corresponding to the mode of this first-class body cavity, one first bubble generator and one second bubble generator that this first nozzle includes one first spray orifice and is positioned at these first spray orifice both sides, this first bubble generator can produce one first bubble as one first virtual air valve (Virtual Valve) to limit fluid between this first bubble generator and this second bubble generator toward this manifold flow, this second bubble generator can produce one second bubble so that the fluid between this first bubble and this second bubble is pushed out this first spray orifice and formed one first drop; And one second nozzle, to be located on this ejection layer corresponding to the mode of this second fluid cavity, one the 3rd bubble generator and one the 4th bubble generator that this second nozzle includes one second spray orifice and is positioned at these second spray orifice both sides, the 3rd bubble generator can produce one the 3rd bubble as one second virtual air valve (Virtual Valve) to limit fluid between the 3rd bubble generator and the 4th bubble generator toward this manifold flow, the 4th bubble generator can produce one the 4th bubble so that the fluid between the 3rd bubble and the 4th bubble is pushed out this second spray orifice and formed one second drop; Wherein this first drop is greater than this second drop.
The present invention also provides to plant and utilizes a fluid injection apparatus to produce the method for liquid drops in different size, and this fluid ejection apparatus is connected with a fluid storage tank and includes: a substrate, and it includes a manifold, is used for receiving the fluid in this fluid reservoir; One ejection layer is located at the top side of this substrate, forms a first-class body cavity and one second fluid cavity with the top side of this substrate, and the physical dimension of this first-class body cavity is different with the physical dimension of this second fluid cavity; One first nozzle, the one first bubble generator and the one second bubble generator that comprise one first spray orifice and be positioned at these first spray orifice both sides; And one second nozzle, one the 3rd bubble generator and one the 4th bubble generator that comprise one second spray orifice and be positioned at these second spray orifice both sides; This method comprises following step: this first bubble generator produces one first bubble in corresponding first-class body cavity, this second bubble generator produces one second bubble in corresponding first-class body cavity, this first bubble and this second bubble is closer to each other, and the fluid between this first bubble and this second bubble is pushed out this first spray orifice and formed one first drop; The 3rd bubble generator produces one the 3rd bubble in corresponding second fluid cavity, the 4th bubble generator produces one the 4th bubble in corresponding second fluid cavity, the 3rd bubble and the 4th bubble are closer to each other and the fluid between the 3rd bubble and the 4th bubble pushed out this second spray orifice and form second drop greater than this first drop.
Generally speaking, this fluid ejection apparatus utilizes a bubble as virtual air valve, with flow resistance resistance between increase fluid cavity and the manifold or the fluid flow between block fluid chamber and the manifold, push the fluid in the fluid cavity and fluid is penetrated from fluid cavity with another bubble more afterwards.The present invention promptly makes this fluid ejection apparatus produce the drops of different sizes by the fluid cavity physical dimension of this fluid ejection apparatus of change or the aperture of spray orifice (orifice).
Below in conjunction with accompanying drawing, describe embodiments of the invention in detail, wherein:
Fig. 1 is the schematic diagram of existing fluid ejection apparatus;
Fig. 2 is the schematic diagram of first embodiment of the invention fluid ejection apparatus;
Fig. 3 is the cutaway view of Fig. 2 fluid ejection apparatus along tangent line 3-3;
Fig. 4 is the generalized section of Fig. 2 fluid ejection apparatus when bubble produces;
Fig. 5 is the generalized section of Fig. 2 fluid ejection apparatus when fluid penetrates;
Fig. 6 is the schematic diagram of second embodiment of the invention fluid ejection apparatus;
Fig. 7 is the generalized section of third embodiment of the invention fluid ejection apparatus;
Fig. 8 is the generalized section of fourth embodiment of the invention fluid ejection apparatus;
Fig. 9 is the generalized section of fifth embodiment of the invention fluid ejection apparatus;
Figure 10 and Figure 11 are the schematic diagram of sixth embodiment of the invention fluid ejection apparatus;
Figure 12 and Figure 13 are the schematic diagram of first and second fluid cavity of seventh embodiment of the invention fluid ejection apparatus.
Please refer to Fig. 2, Fig. 2 is the schematic diagram of first embodiment of the invention fluid ejection apparatus 100.Fluid ejection apparatus 100 is connected with a fluid storage tank 110.Fluid ejection apparatus 100 includes a substrate 112, it is located at a side of fluid reservoir 110, an and ejection layer 120, it is located at the top side of substrate 112, and form a plurality of first-class body cavity (Chamber) 122 and a plurality of second fluid cavity 124 with the top side of substrate 112, and the content volume of first-class body cavity 122 is greater than the content volume of second fluid cavity 124.Substrate 112 includes a manifold 114, is used for carrying fluid 116 in the fluid reservoir 110 to fluid ejection apparatus 100.A plurality of first-class body cavitys 122 are formed at first side 115 of manifold 114, and a plurality of second fluid cavitys 124 are formed at second side 117 of manifold 114.Ejection layer 120 is provided with the first nozzle group 130 and one second nozzle group 140, the first nozzle group 130 includes a plurality of first nozzles 131, and the second nozzle group 140 includes a plurality of second nozzles 141, each first nozzle 131 corresponds respectively to a first-class body cavity 122, and each second nozzle 141 corresponds respectively to one second fluid cavity 124.Wherein each first nozzle 131 includes one first spray orifice 132, one first bubble generator 136 and one second bubble generator 138, and each second nozzle 141 includes one second spray orifice 134, one the 3rd bubble generator 142 and one the 4th bubble generator 144.First spray orifice 132 is formed on the ejection layer 120 and corresponding to first-class body cavity 122, and second spray orifice 134 also is formed on the ejection layer 120 and corresponding to second fluid cavity 124.The first, second, third and the 4th bubble generator 136,138,142,144 is respectively a heater, wherein primary heater 136 is used for respectively to 116 heating of the fluid in the first-class body cavity 122 with secondary heater 138, and the 3rd heater 142 and the 4th heater 144 are used for respectively to 116 heating of the fluid in second fluid cavity 124.In addition, primary heater 136 and secondary heater 138 are connected to one first common electrode (Common electrode), 172, the three heaters 142 and the 4th heater 144 in the mode of series connection and are connected to one second common electrode 174 in the mode of series connection.
Please refer to Fig. 3 to Fig. 5, Fig. 3 is the profile of Fig. 2 fluid ejection apparatus 100 along tangent line 3-3, and Fig. 4 is the generalized section of Fig. 2 fluid ejection apparatus 100 when bubble produces, and Fig. 5 is the generalized section of Fig. 2 fluid ejection apparatus 100 when fluid penetrates.As shown in the figure, each primary heater 136 is located at corresponding first spray orifice 132 than the side near manifold 114, be used for to fluid 116 heating in the corresponding first-class body cavity 122 to produce one first bubble 152, each secondary heater 138 is located at corresponding first spray orifice 132 away from the opposite side of manifold 114, is used for after first bubble 152 produces the fluid in the corresponding first-class body cavity 122 116 being heated to produce one second bubble 154.In addition, each the 3rd heater 142 is located at corresponding second spray orifice 134 than the side near manifold 114, be used for to fluid 116 heating in corresponding second fluid cavity 124 to produce one the 3rd bubble 156, and each the 4th heater 144 is located at corresponding second spray orifice 134 away from the opposite side of manifold 114, is used for after the 3rd bubble 156 produces the fluid in corresponding second fluid cavity 124 116 being heated to produce one the 4th bubble 158.Wherein, because the width of primary heater 136 is narrower than secondary heater 138, so the resistance value of primary heater 136 can be bigger than the resistance value of secondary heater 138, thereby first bubble 152 can be produced earlier than second bubble 154.In like manner, the width of the 3rd heater 142 is also narrow than the 4th heater 144, and therefore the resistance value of the 3rd heater 142 can be bigger than the resistance value of the 4th heater 144, thereby and the 3rd bubble 156 can be produced than the 4th bubble 158 earlier.When first bubble 152 produces; the fluid 116 that can begin to limit in the first-class body cavity 122 flows to manifold 114; thereby form a virtual air valve (Virtual valve) with first-class body cavity 122 and manifold 114 isolated opening; and thereby the contiguous fluid cavity of protection avoids phase mutual interference (Cross talk); when the 3rd bubble 156 produces; the fluids 116 that also can begin to limit in second fluid cavity 124 flow to manifold 114, and thereby form another virtual air valve with second fluid cavity 124 and manifold 114 isolated opening.After first bubble 152 produces, secondary heater 138 begins to produce second bubble 154, fluid pressure in this moment first-class body cavity 122 can little by little expand and increases with second bubble 154, thereby makes the fluids 116 in the first-class body cavity 122 penetrate and form one first drop 162 from first spray orifice 132.In like manner, after the 3rd bubble 156 produces, the 4th bubble 158 that the 4th heater 144 begins to produce, fluid pressure in this moment second fluid cavity 124 can little by little expand and increases along with the 4th bubble 158, thereby makes the fluids 116 in second fluid cavity 124 penetrate and form one second drop 164 from second spray orifice 134.As shown in Figure 5, along with first bubble 152 and second bubble, 154 prolonged expansions, first bubble 152 and second bubble 154 can be near each other, when first bubble 152 combines with 154 beginnings of second bubble, the afterbody 166 of first drop 162 can be cut off suddenly, and first drop 162 is penetrated from first nozzle 131, thus, after first nozzle 131 penetrates first drop 162, will not have satellite droplet and produce.Similarly, along with the 3rd bubble 156 and the 4th bubble 158 prolonged expansions, the 3rd bubble 156 and the 4th bubble 158 also can be near each other, when the 3rd bubble 156 combines with 158 beginnings of the 4th bubble, the afterbody 168 of second drop 164 also can be cut off suddenly, and second drop 164 is penetrated from second nozzle 141, thereby can reach after second nozzle 141 penetrates second drop 164, do not have the purpose that satellite droplet produces.In addition, the content volume of first-class as mentioned above body cavity 122 is greater than the content volume of second fluid cavity 124, so the Fluid Volume between first and second bubble 152,154 can be more than the Fluid Volume between the 3rd and the 4th bubble 156,158, and makes first drop 162 greater than second drop 164.
From the above, fluid 116 is penetrated to form the method for first and second drop 162,164 from a fluid injection apparatus 100, generally speaking may further comprise the steps according to the present invention:
(A) make the first bubble generator 136 in corresponding first-class body cavity 122, produce first bubble 152;
(B) after first bubble produces 152, make the second bubble generator 138 in corresponding first-class body cavity 122, produce second bubble 154, thereby make second bubble 154 that the fluid 116 between first bubble 152 and second bubble 154 is pushed out first spray orifice 132 and formed first drop 162;
(C) make the 3rd bubble generator 142 in corresponding second fluid cavity 124, produce the 3rd bubble 156; And
(D) after the 3rd bubble produces 156, make the 4th bubble generator 144 in corresponding second fluid cavity 124, produce the 4th bubble 158, thereby make the 4th bubble 158 that the fluid 116 between the 3rd bubble 156 and the 4th bubble 168 is pushed out second spray orifice 134 and formed this second drop 164 less than this first drop.
Need to prove that in the above-mentioned steps, step (A), (B) are the production processes that belongs to first drop 162, step (C), (D) then are the production processes that belongs to second drop 164.The certain generation step (A) of step (B) afterwards, and the certain generation step (C) of step (D) is afterwards.In addition, according to the situation demand of actual generation drop, these steps can be arranged to various order of occurrence.For example: (C), (D), (A), (B); Or (A), (C), (B), (D); Or (A), (C), (D), (B) or the like.Based on such spirit and derive, can develop the embodiment that many different structures, details are as follows.
Please refer to Fig. 6, Fig. 6 is the schematic diagram of second embodiment of the invention fluid ejection apparatus 200.Fluid ejection apparatus 200 has similar structure to fluid ejection apparatus 100, and fluid ejection apparatus 200 also is communicated with a fluid storage tank 210, and includes a substrate 212, an ejection layer 220, one first nozzle group 230 and one second nozzle group 240.The first nozzle group 230 includes a plurality of first nozzles 231, and the second nozzle group 240 includes a plurality of second nozzles 241.Wherein each first nozzle 231 includes one first spray orifice 232, one first bubble generator 236 and one second bubble generator 238, each second nozzle 241 includes one second spray orifice 234, one the 3rd bubble generator 242 and one the 4th bubble generator 244, in the present embodiment, the first, second, third and the 4th bubble generator 236,238,242,244 is respectively a heater.In addition, ejection layer 220 also forms a plurality of first-class body cavitys 222 and a plurality of second fluid cavity 224 with the top side of substrate 212.Wherein, a plurality of first-class body cavitys 222 and a plurality of second fluid cavity 224 are formed at the both sides of manifold 214 respectively, first spray orifice 232 is formed on the ejection layer 220 and also is formed on the ejection layer 220 and corresponding to second fluid cavity 224 corresponding to first-class body cavity 222, the second spray orifices 234.Different with fluid ejection apparatus 100 is that the width W 1 of first-class body cavity 222 is greater than the width W 2 of second fluid cavity 224.When the first, second, third and the 4th heater 236,238,242,244 heats the fluid of first and second fluid cavity 222,224 respectively and produces bubble, can be because of the width W 1 of first-class body cavity 222 width W 2 greater than second fluid cavity 224, make the fluid pushed by bubble in the first-class body cavity 222 can be, thereby and make by emitted first drop of first spray orifice 232 greater than by the second emitted drop of second spray orifice 234 more than the fluid of being pushed by bubble in second fluid cavity 224.And by pushing the fluid of different amounts, fluid ejection apparatus 200 can penetrate liquid drops in different size.
Please refer to Fig. 7, Fig. 7 is the generalized section of third embodiment of the invention fluid ejection apparatus 300.In the 3rd embodiment, first and second fluid cavity 322,324 of fluid ejection apparatus 300 has the different degree of depth.As shown in Figure 7, the depth H 1 of first-class body cavity 322 is greater than the depth H 2 of second fluid cavity 324.When producing the first, second, third and the 4th bubble 352,354,356,358 respectively when the fluid of first and second fluid cavitys 322,324 of the first, second, third and the 4th heater 336,338,342,344 heating of fluid ejection apparatus 300, can be because of the depth H 1 of first-class body cavity 322 depth H 2 greater than second fluid cavity 324, and make first drop 362 that penetrates by first spray orifice 332 greater than second drop 364 that penetrates by second spray orifice 334.
Please refer to Fig. 8, Fig. 8 is the generalized section of fourth embodiment of the invention fluid ejection apparatus 400.As shown in Figure 8, the distance D 1 of first and second heater 436,438 of first spray orifice, 432 2 sides is greater than the distance D 2 of the 3rd and the 4th heater 442,444 of second spray orifice, 434 2 sides.When first of fluid ejection apparatus 400, second, the the 3rd and the 4th heater 436,438,442,444 first and second fluid cavitys 422 of heating, 424 fluid and produce first respectively, second, the the 3rd and the 4th bubble 452,454,456,458 o'clock, can be because of first and second heater 436 of first spray orifice, 432 2 sides, 438 distance D 1 is greater than the 3rd and the 4th heater 442 of second spray orifice, 434 2 sides, 444 distance D 2, make in the first-class body cavity 422 by first and second bubble 452,454 fluids of pushing more than in second fluid cavity 424 by the 3rd and the 4th bubble 456,458 fluids of pushing, thus and make by emitted first drop 462 of first spray orifice 432 greater than by the second emitted drop 464 of second spray orifice 434.
Please refer to Fig. 9, Fig. 9 is the generalized section of fifth embodiment of the invention fluid ejection apparatus 500.As shown in Figure 9, first spray orifice 532 is greater than second spray orifice 534, and promptly the aperture r1 of first spray orifice 532 is greater than the aperture r2 of second spray orifice 534.When first of fluid ejection apparatus 500, second, the the 3rd and the 4th heater 536,538,542,544 first and second fluid cavitys 522 of heating, 524 fluid and produce first respectively, second, the the 3rd and the 4th bubble 552,554,556,558 o'clock, can because of first spray orifice 532 greater than second spray orifice 534, and make first and second bubble 552,554 resistances that produced when pushing fluid are less than the 3rd and the 4th bubble 556,558 resistances that produced when pushing fluid, thus and make by the emitted fluid 562 of first spray orifice 532 greater than by the emitted fluid 564 of second spray orifice 534.
Please refer to Figure 10 and Figure 11, Figure 10 and Figure 11 are the schematic diagram of sixth embodiment of the invention fluid ejection apparatus 600.First and second fluid cavity of fluid ejection apparatus among the embodiment of front also can be arranged in staggered mode as first and second fluid cavity of fluid ejection apparatus 600 except can arranging in mode side by side.When producing bubble when the fluid of the first-class body cavity 622 of first, second heater 636,638 heating of fluid ejection apparatus 600, the fluid of second fluid cavity 624 more can not pushed out second spray orifice 634 because of first, second heater 636,638 aerations that produced by mistake.In like manner, when producing bubble when the fluid of the 3rd, the 4th heater 642,644 heating second fluid cavity 624 of fluid ejection apparatus 600, the fluid of first-class body cavity 622 can be by the 3rd, the 4th heater 642,644 aerations that produced yet.In other words, in the present embodiment, will more can not produce the effect of phase mutual interference between first and second fluid cavity 622,624.Certainly, first and second fluid cavity is except arranging in mode side by side or arranging in staggered mode, also can otherwise arrange, for example: the fluid cavity that two kinds (or two or more) can spray different drop sizes is arranged in the same side of manifold in staggered mode (or with any specific arrangement mode); Or two kinds (or two or more) fluid cavity that can spray different drop sizes is arranged in the both sides of manifold in staggered mode (or with any specific arrangement mode).And every nozzle that utilizes two nozzle groups, form the drop that varies in size in the mode that successively produces two bubbles respectively, thereby reach the effect of avoiding that mutual disturbing effect takes place and producing satellite droplet, no matter the arrangement mode of its first and second fluid cavity how, all should belong to the category that the present invention is contained.
Please refer to Figure 12 and Figure 13, Figure 12 and Figure 13 are the schematic diagram of first and second fluid cavity 722,724 of the present invention's the 7th implementation column fluid ejection apparatus.Wherein, Figure 12 is used for illustrating that first-class body cavity 722 and first, second heater 736,738, Figure 13 are to be used for illustrating second fluid cavity 724 and the 3rd, the 4th heater 742,744.When first, second heater 736,738 adds hot fluid and produces bubble, first spray orifice, 732 meeting ejaculation diameters are 45 microns drop, when the 3rd, the 4th heater 742,744 adds hot fluid and when producing bubble, it is 35 microns drop that second spray orifice 734 can penetrate diameters.Need to prove that these data are being implemented when of the present invention just for convenience of explanation, it should be noted that still the emitted drop size of first spray orifice 732 and second spray orifice 734 is also relevant with many parameters, for example: the composition of fluid, the temperature of environment etc.In this embodiment, first and second fluid cavity 722,724 is the width difference not only, the distance of first and second heater 736,738 is also greater than the distance of the 3rd and the 4th heater 742,744, in such structure, the first-class body cavity 722 and second fluid cavity 724 can produce the drop of different sizes.That is to say that manufacturer also can be by making up the drops that different change in size in the first-class body cavity 722 and second fluid cavity 724 produces different sizes.
Compare with existing fluid ejection apparatus, fluid ejection apparatus of the present invention is to make fluid ejection apparatus produce the drops of different sizes by the structure of the fluid cavity that changes fluid ejection apparatus, distance between the adjacent heater and the aperture of spray orifice.Fluid ejection apparatus of the present invention removes and can be used on the inkjet-printing device, to reach outside variation that increases colourity and the purpose of accelerating the colourity print speed, also it can be used on the purposes of the efficiency of combustion of improving miniature fuel oil engine or be applied to the biochemical technology field.And except the change of the various embodiments described above because of, so long as utilize notion of the present invention, change the manifold both sides fluid cavity structure and make fluid ejection apparatus produce the drops of different sizes, all belong to the category that the present invention is contained.
The above only is preferred embodiment of the present invention, and all equalizations of being done according to claim scope of the present invention change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (54)
1. fluid ejection apparatus, it is connected with a fluid storage tank, and this fluid ejection apparatus includes:
One substrate, it includes a manifold, is used for receiving the fluid in this fluid reservoir;
One ejection layer is located at the top side of this substrate, forms a plurality of first-class body cavitys and a plurality of second fluid cavity with the top side of this substrate;
One first nozzle group, it includes a plurality of first nozzles, and to be located on this ejection layer corresponding to the mode of these a plurality of first-class body cavitys, each first nozzle includes:
One first spray orifice;
One first bubble generator is located at a side of this first spray orifice, is used for producing one first bubble; And
One second bubble generator is located at the opposite side of this first spray orifice, is used for producing the back at this first bubble and produces one second bubble, and this second bubble can be pushed out the fluid between first bubble and this second bubble this first spray orifice and form one first drop; And
One second nozzle group, it includes a plurality of second nozzles, and to be located on this ejection layer corresponding to the mode of these a plurality of second fluid cavitys, each second nozzle includes:
One second spray orifice;
One the 3rd bubble generator is located at a side of this second spray orifice, is used for producing one the 3rd bubble; And
One the 4th bubble generator is located at the opposite side of this second spray orifice, is used for producing the back in the 3rd bubble and produces one the 4th bubble, and the 4th bubble can be pushed out the fluid between the 3rd bubble and the 4th bubble this second spray orifice and form one second drop;
Wherein this first-class body cavity is different with the physical dimension of this second fluid cavity, and makes the size of this first drop different with this second drop.
2. fluid ejection apparatus as claimed in claim 1, wherein this first, second, third and the 4th bubble generator is respectively a heater, this first and second heater is used for to the fluid in corresponding first-class body cavity heating producing this first and second bubble, and the 3rd and the 4th heater is used for to the heating of the fluid in corresponding second fluid cavity to produce the 3rd and the 4th bubble.
3. fluid ejection apparatus as claimed in claim 2, wherein this first and second heater is connected in the mode of series connection, and the 3rd and the 4th heater also is connected in the mode of series connection.
4. fluid ejection apparatus as claimed in claim 1, wherein the width of this first-class body cavity is different with the width of this second fluid cavity, and makes the size of this first drop different with this second drop.
5. fluid ejection apparatus as claimed in claim 1, wherein the degree of depth of this first-class body cavity is different with the degree of depth of this second fluid cavity, and makes the size of this first drop and varying in size of this second drop.
6. fluid ejection apparatus as claimed in claim 1, wherein this first bubble generator is located at this first spray orifice than the side near this manifold, this second bubble generator is located at this first spray orifice than the opposite side away from nearly this manifold, the 3rd bubble generator is located at this second spray orifice near a side of this manifold, and the 4th bubble generator is located at this second spray orifice than the opposite side away from this manifold.
7. fluid ejection apparatus as claimed in claim 1, wherein this first bubble is used as the one first virtual air valve (Virtual valve) in this first-class body cavity, be used for after this second bubble produces, limit past this manifold flow of fluid between this first bubble and this second bubble, and the 3rd bubble is used as one second virtual air valve in this second fluid cavity, be used for after the 4th bubble produces, limit past this manifold flow of fluid between the 3rd bubble and the 4th bubble.
8. fluid ejection apparatus as claimed in claim 1, wherein this substrate is located at a side of this fluid reservoir.
9. fluid ejection apparatus, it is connected with a fluid storage tank, and this fluid ejection apparatus includes:
One substrate, it includes a manifold, is used for receiving the fluid in this fluid reservoir;
One ejection layer is located at the top side of this substrate, forms a plurality of first-class body cavitys and a plurality of second fluid cavity with the top side of this substrate;
One first nozzle group, it includes a plurality of first nozzles, and to be located on this ejection layer corresponding to the mode of these a plurality of first-class body cavitys, each first nozzle includes:
One first spray orifice;
One first bubble generator is located at a side of this first spray orifice, is used for producing one first bubble; And
One second bubble generator is located at the opposite side of this first spray orifice, is used for producing the back in this first bubble and produces one second bubble, and this second bubble can be pushed out the fluid between first bubble and this second bubble this first spray orifice and form one first drop; And
One second nozzle group, it includes a plurality of second nozzles, and to be located on this ejection layer corresponding to the mode of these a plurality of second fluid cavitys, each second nozzle includes:
One second spray orifice;
One the 3rd bubble generator is located at a side of this second spray orifice, is used for producing one the 3rd bubble; And
One the 4th bubble generator is located at the opposite side of this second spray orifice, is used for producing the back in the 3rd bubble and produces one the 4th bubble, and the 4th bubble can be pushed out the fluid between the 3rd bubble and the 4th bubble this second spray orifice and form one second drop;
Wherein the distance between its first and second bubble generator of this first nozzle is greater than the distance between its 3rd and the 4th bubble generator of this second nozzle, and makes this first drop greater than this second drop.
10. fluid ejection apparatus as claimed in claim 9, wherein this first, second, third and the 4th bubble generator is respectively a heater, this first and second heater is used for the fluid in the corresponding first-class body cavity is heated to produce this first and second bubble, and the 3rd and the 4th heater is used for to the heating of the fluid in corresponding second fluid cavity to produce the 3rd and the 4th bubble.
11. fluid ejection apparatus as claimed in claim 10, wherein this first and second heater is connected in the mode of series connection, and the 3rd and the 4th heater also is connected in the mode of series connection.
12. fluid ejection apparatus as claimed in claim 9, wherein this first bubble generator is located at this first spray orifice than the side near this manifold, this second bubble generator is located at this first spray orifice than the opposite side away from nearly this manifold, the 3rd bubble generator is located at this second spray orifice near a side of this manifold, and the 4th bubble generator is located at this second spray orifice than the opposite side away from this manifold.
13. fluid ejection apparatus as claimed in claim 9, wherein this first bubble is used as the one first virtual air valve (Virtual valve) in this first-class body cavity, be used for after this second bubble produces, limit past this manifold flow of fluid between this first bubble and this second bubble, the 3rd bubble is used as one second virtual air valve in this second fluid cavity, be used for after the 4th bubble produces, limit past this manifold flow of fluid between the 3rd bubble and the 4th bubble.
14. fluid ejection apparatus as claimed in claim 9, wherein this substrate is located at a side of this fluid reservoir.
15. a fluid ejection apparatus, it is connected with a fluid storage tank, and this fluid ejection apparatus includes:
One substrate, it includes a manifold, is used for receiving the fluid in this fluid reservoir;
One ejection layer is located at the top side of this substrate, forms a plurality of first-class body cavitys and a plurality of second fluid cavity with the top side of this substrate;
One first nozzle group, it includes a plurality of first nozzles, and to be located on this ejection layer corresponding to the mode of these a plurality of first-class body cavitys, each first nozzle includes:
One first spray orifice;
One first bubble generator is located at a side of this first spray orifice, is used for producing one first bubble; And
One second bubble generator is located at the opposite side of this first spray orifice, is used for producing the back in this first bubble and produces one second bubble, and this second bubble can be pushed out the fluid between first bubble and this second bubble this first spray orifice and form one first drop; And
One second nozzle group, it includes a plurality of second nozzles, and to be located on this ejection layer corresponding to the mode of these a plurality of second fluid cavitys, each second nozzle includes:
One second spray orifice;
One the 3rd bubble generator is located at a side of this second spray orifice, is used for producing one the 3rd bubble; And
One the 4th bubble generator is located at the opposite side of this second spray orifice, is used for producing the back in the 3rd bubble and produces one the 4th bubble, and the 4th bubble can be pushed out the fluid between the 3rd bubble and the 4th bubble this second spray orifice and form one second drop;
Wherein this first spray orifice is greater than this second spray orifice, and makes this first drop greater than this second drop.
16. fluid ejection apparatus as claimed in claim 15, wherein this first, second, third and the 4th bubble generator is respectively a heater, this first and second heater is used for the fluid in the corresponding first-class body cavity is heated to produce this first and second bubble, and the 3rd and the 4th heater is used for to the heating of the fluid in corresponding second fluid cavity to produce the 3rd and the 4th bubble.
17. fluid ejection apparatus as claimed in claim 16, wherein this first and second heater is connected in the mode of series connection, and the 3rd and the 4th heater also is connected in the mode of series connection.
18. fluid ejection apparatus as claimed in claim 15, wherein this first bubble generator is located at this first spray orifice than the side near this manifold, this second bubble generator is located at this first spray orifice than the opposite side away from nearly this manifold, the 3rd bubble generator is located at this second spray orifice near a side of this manifold, and the 4th bubble generator is located at this second spray orifice than the opposite side away from this manifold.
19. fluid ejection apparatus as claimed in claim 15, wherein this first bubble is used as the one first virtual air valve (Virtual valve) in this first-class body cavity, be used for after this second bubble produces, limit past this manifold flow of fluid between this first bubble and this second bubble, the 3rd bubble is used as one second virtual air valve in this second fluid cavity, be used for after the 4th bubble produces, limit past this manifold flow of fluid between the 3rd bubble and the 4th bubble.
20. fluid ejection apparatus as claimed in claim 15, wherein this substrate is located at a side of this fluid reservoir.
21. a method of utilizing a fluid injection apparatus to produce liquid drops in different size, this fluid ejection apparatus is connected with a fluid storage tank and includes:
One substrate, it includes a manifold, is used for receiving the fluid in this fluid reservoir;
One ejection layer is located at the top side of this substrate, forms a plurality of first-class body cavitys and a plurality of second fluid cavity with the top side of this substrate, and these a plurality of first-class body cavitys are greater than these a plurality of second fluid cavitys;
One first nozzle group, it includes a plurality of first nozzles, and to be located on this ejection layer corresponding to the mode of these a plurality of first-class body cavitys, each first nozzle includes:
One first spray orifice is formed on this substrate;
One first bubble generator is located at a side of this first spray orifice; And
One second bubble generator is located at the opposite side of this first spray orifice; And
One second nozzle group, it includes a plurality of second nozzles, and to be located on this ejection layer corresponding to the mode of these a plurality of second fluid cavitys, each second nozzle includes:
One second spray orifice is formed on this substrate;
One the 3rd bubble generator is located at a side of this second spray orifice, and
One the 4th bubble generator is located at the opposite side of this second spray orifice;
This method comprises following step:
Make this first bubble generator in corresponding first-class body cavity, produce one first bubble;
After this first bubble produces, make this second bubble generator in corresponding first-class body cavity, produce one second bubble, this second bubble can be pushed out the fluid between first bubble and this second bubble this first spray orifice and form one first drop;
Make the 3rd bubble generator in corresponding second fluid cavity, produce one the 3rd bubble; And
After the 3rd bubble produces, make the 4th bubble generator produce one the 4th bubble in corresponding second fluid cavity, the 4th bubble can be pushed out the fluid between the 3rd bubble and the 4th bubble this second spray orifice and form second drop less than this first drop.
22. method as claimed in claim 21, wherein this first, second, third and the 4th bubble generator is respectively a heater, this first and second heater is used for the fluid in the corresponding first-class body cavity is heated to produce this first and second bubble, and the 3rd and the 4th heater is used for to the heating of the fluid in corresponding second fluid cavity to produce the 3rd and the 4th bubble.
23. method as claimed in claim 22, wherein this first and second heater is connected in the mode of series connection, and the 3rd and the 4th heater also is connected in the mode of series connection.
24. method as claimed in claim 21, wherein the width of this first-class body cavity makes this first drop greater than this second drop greater than the width of this second fluid cavity.
25. method as claimed in claim 21, wherein the degree of depth of this first-class body cavity makes this first drop greater than this second drop greater than the degree of depth of this second fluid cavity.
26. method as claimed in claim 21, wherein this first bubble generator is located at this first spray orifice than the side near this manifold, this second bubble generator is located at this first spray orifice than the opposite side away from nearly this manifold, the 3rd bubble generator is located at this second spray orifice near a side of this manifold, and the 4th bubble generator is located at this second spray orifice than the opposite side away from this manifold.
27. method as claimed in claim 21, wherein this first bubble is used as the one first virtual air valve (Virtual valve) in this first-class body cavity, be used for after this second bubble produces, limit past this manifold flow of fluid between this first bubble and this second bubble, the 3rd bubble is used as one second virtual air valve in this second fluid cavity, be used for after the 4th bubble produces, limit past this manifold flow of fluid between the 3rd bubble and the 4th bubble.
28. method as claimed in claim 21, wherein this substrate is located at a side of this fluid reservoir.
29. a method of utilizing a fluid injection apparatus to produce liquid drops in different size, this fluid ejection apparatus is connected with a fluid storage tank and includes:
One substrate, it includes a manifold, is used for receiving the fluid in this fluid reservoir;
One ejection layer is located at the top side of this substrate, forms a plurality of first-class body cavitys and a plurality of second fluid cavity with the top side of this substrate;
One first nozzle group, it includes a plurality of first nozzles, and to be located on this ejection layer corresponding to the mode of these a plurality of first-class body cavitys, each first nozzle includes:
One first spray orifice is formed on this substrate;
One first bubble generator is located at a side of this first spray orifice; And
One second bubble generator is located at the opposite side of this first spray orifice; And
One second nozzle group, it includes a plurality of second nozzles, and to be located on this ejection layer corresponding to the mode of these a plurality of second fluid cavitys, each second nozzle includes:
One second spray orifice is formed on this substrate;
One the 3rd bubble generator is located at a side of this second spray orifice, and
One the 4th bubble generator is located at the opposite side of this second spray orifice;
Wherein the distance between its first and second bubble generator of this first nozzle is greater than the distance between its 3rd and the 4th bubble generator of this second nozzle;
This method comprises following step:
Make this first bubble generator in corresponding first-class body cavity, produce one first bubble;
After this first bubble produces, make this second bubble generator in corresponding first-class body cavity, produce one second bubble, this second bubble can be pushed out the fluid between first bubble and this second bubble this first spray orifice and form one first drop;
Make the 3rd bubble generator in corresponding second fluid cavity, produce one the 3rd bubble; And
After the 3rd bubble produces, make the 4th bubble generator produce one the 4th bubble in corresponding second fluid cavity, the 4th bubble can be pushed out the fluid between the 3rd bubble and the 4th bubble this second spray orifice and form second drop less than this first drop.
30. method as claimed in claim 29, wherein this first, second, third and the 4th bubble generator is respectively a heater, this first and second heater is used for the fluid in the corresponding first-class body cavity is heated to produce this first and second bubble, and the 3rd and the 4th heater is used for to the heating of the fluid in corresponding second fluid cavity to produce the 3rd and the 4th bubble.
31. method as claimed in claim 30, wherein this first and second heater is connected in the mode of series connection, and the 3rd and the 4th heater also is connected in the mode of series connection.
32. method as claimed in claim 29, wherein this first bubble generator is located at this first spray orifice than the side near this manifold, this second bubble generator is located at this first spray orifice than the opposite side away from nearly this manifold, the 3rd bubble generator is located at this second spray orifice near a side of this manifold, and the 4th bubble generator is located at this second spray orifice than the opposite side away from this manifold.
33. method as claimed in claim 29, wherein this first bubble is used as the one first virtual air valve (Virtual valve) in this first-class body cavity, be used for after this second bubble produces, limit past this manifold flow of fluid between this first bubble and this second bubble, the 3rd bubble is used as one second virtual air valve in this second fluid cavity, be used for after the 4th bubble produces, limit past this manifold flow of fluid between the 3rd bubble and the 4th bubble.
34. method as claimed in claim 29, wherein this substrate is located at a side of this fluid reservoir.
35. a method of utilizing a fluid injection apparatus to produce liquid drops in different size, this fluid ejection apparatus is connected with a fluid storage tank and includes:
One substrate, it includes a manifold, is used for receiving the fluid in this fluid reservoir;
One ejection layer is located at the top side of this substrate, forms a plurality of first-class body cavitys and a plurality of second fluid cavity with the top side of this substrate;
One first nozzle group, it includes a plurality of first nozzles, and to be located on this ejection layer corresponding to the mode of these a plurality of first-class body cavitys, each first nozzle includes:
One first spray orifice is formed on this substrate;
One first bubble generator is located at a side of this first spray orifice; And
One second bubble generator is located at the opposite side of this first spray orifice; And
One second nozzle group, it includes a plurality of second nozzles, and to be located on this ejection layer corresponding to the mode of these a plurality of second fluid cavitys, each second nozzle includes:
One second spray orifice is formed on this substrate;
One the 3rd bubble generator is located at a side of this second spray orifice, and
One the 4th bubble generator is located at the opposite side of this second spray orifice;
Wherein this first spray orifice is greater than this second spray orifice;
This method comprises following step:
Make this first bubble generator in corresponding first-class body cavity, produce one first bubble;
After this first bubble produces, make this second bubble generator in corresponding first-class body cavity, produce one second bubble, this second bubble can be pushed out the fluid between first bubble and this second bubble this first spray orifice and form one first drop;
Make the 3rd bubble generator in corresponding second fluid cavity, produce one the 3rd bubble; And
After the 3rd bubble produces, make the 4th bubble generator produce one the 4th bubble in corresponding second fluid cavity, the 4th bubble can be pushed out the fluid between the 3rd bubble and the 4th bubble this second spray orifice and form second drop less than this first drop.
36. method as claimed in claim 35, wherein this first, second, third and the 4th bubble generator is respectively a heater, this first and second heater is used for the fluid in the corresponding first-class body cavity is heated to produce this first and second bubble, and the 3rd and the 4th heater is used for to the heating of the fluid in corresponding second fluid cavity to produce the 3rd and the 4th bubble.
37. method as claimed in claim 36, wherein this first and second heater is connected in the mode of series connection, and the 3rd and the 4th heater also is connected in the mode of series connection.
38. method as claimed in claim 35, wherein this first bubble generator is located at this first spray orifice than the side near this manifold, this second bubble generator is located at this first spray orifice than the opposite side away from nearly this manifold, the 3rd bubble generator is located at this second spray orifice near a side of this manifold, and the 4th bubble generator is located at this second spray orifice than the opposite side away from this manifold.
39. method as claimed in claim 35, wherein this first bubble is used as the one first virtual air valve (Virtual valve) in this first-class body cavity, be used for after this second bubble produces, limit past this manifold flow of fluid between this first bubble and this second bubble, the 3rd bubble is used as one second virtual air valve in this second fluid cavity, be used for after the 4th bubble produces, limit past this manifold flow of fluid between the 3rd bubble and the 4th bubble.
40. method as claimed in claim 35, wherein this substrate is located at a side of this fluid reservoir.
41. a fluid ejection apparatus, it is connected with a fluid storage tank, and this fluid ejection apparatus includes:
One substrate, it includes a manifold, is used for receiving the fluid in this fluid reservoir;
One ejection layer is located at the top side of this substrate, forms a first-class body cavity and one second fluid cavity with the top side of this substrate;
One first nozzle, to be located on this ejection layer corresponding to the mode of this first-class body cavity, one first bubble generator and one second bubble generator that this first nozzle includes one first spray orifice and is positioned at these first spray orifice both sides, this first bubble generator can produce one first bubble as one first virtual air valve (Virtual Valve) to limit fluid between this first bubble generator and this second bubble generator toward this manifold flow, this second bubble generator can produce one second bubble so that the fluid between this first bubble and this second bubble is pushed out this first spray orifice and formed one first drop; And
One second nozzle, to be located on this ejection layer corresponding to the mode of this second fluid cavity, one the 3rd bubble generator and one the 4th bubble generator that this second nozzle includes one second spray orifice and is positioned at these second spray orifice both sides, the 3rd bubble generator can produce one the 3rd bubble as one second virtual air valve (Virtual Valve) to limit fluid between the 3rd bubble generator and the 4th bubble generator toward this manifold flow, the 4th bubble generator can produce one the 4th bubble so that the fluid between the 3rd bubble and the 4th bubble is pushed out this second spray orifice and formed one second drop;
Wherein this first drop is greater than this second drop.
42. fluid ejection apparatus as claimed in claim 41, wherein this first, second, third and the 4th bubble generator is respectively a heater, this first and second heater is used for the fluid in the corresponding first-class body cavity is heated to produce this first and second bubble, and the 3rd and the 4th heater is used for to the heating of the fluid in corresponding second fluid cavity to produce the 3rd and the 4th bubble.
43. fluid ejection apparatus as claimed in claim 42, wherein this first and second heater is connected in the mode of series connection, and the 3rd and the 4th heater also is connected in the mode of series connection.
44. fluid ejection apparatus as claimed in claim 41, wherein the physical dimension of this first-class body cavity is different with the physical dimension of this second fluid cavity, and makes this first drop greater than this second drop.
45. fluid ejection apparatus as claimed in claim 41, wherein the degree of depth of this first-class body cavity is greater than the degree of depth of this second fluid cavity, and makes this first drop greater than this second drop.
46. fluid ejection apparatus as claimed in claim 41, wherein this first bubble generator is located at this first spray orifice than the side near this manifold, this second bubble generator is located at this first spray orifice than the opposite side away from nearly this manifold, the 3rd bubble generator is located at this second spray orifice near a side of this manifold, and the 4th bubble generator is located at this second spray orifice than the opposite side away from this manifold.
47. fluid ejection apparatus as claimed in claim 41, wherein this first spray orifice makes this first drop greater than this second drop greater than this second spray orifice.
48. a method of utilizing a fluid injection apparatus to produce liquid drops in different size, this fluid ejection apparatus is connected with a fluid storage tank and includes:
One substrate, it includes a manifold, is used for receiving the fluid in this fluid reservoir;
One ejection layer is located at the top side of this substrate, forms a first-class body cavity and one second fluid cavity with the top side of this substrate, and the physical dimension of this first-class body cavity is different with the physical dimension of this second fluid cavity;
One first nozzle, the one first bubble generator and the one second bubble generator that comprise one first spray orifice and be positioned at these first spray orifice both sides; And
One second nozzle, one the 3rd bubble generator and one the 4th bubble generator that comprise one second spray orifice and be positioned at these second spray orifice both sides;
This method comprises following step:
This first bubble generator produces one first bubble in corresponding first-class body cavity, this second bubble generator produces one second bubble in corresponding first-class body cavity, this first bubble and this second bubble is closer to each other, and the fluid between this first bubble and this second bubble is pushed out this first spray orifice and formed one first drop;
The 3rd bubble generator produces one the 3rd bubble in corresponding second fluid cavity, the 4th bubble generator produces one the 4th bubble in corresponding second fluid cavity, the 3rd bubble and the 4th bubble are closer to each other and the fluid between the 3rd bubble and the 4th bubble pushed out this second spray orifice and form second drop greater than this first drop.
49. method as claimed in claim 48, wherein this first, second, third and the 4th bubble generator is respectively a heater, this first and second heater is used for the fluid in the corresponding first-class body cavity is heated to produce this first and second bubble, and the 3rd and the 4th heater is used for to the heating of the fluid in corresponding second fluid cavity to produce the 3rd and the 4th bubble.
50. method as claimed in claim 49, wherein this first and second heater is connected in the mode of series connection, and the 3rd and the 4th heater also is connected in the mode of series connection.
51. method as claimed in claim 48, wherein the width of this first-class body cavity is greater than the width of this second fluid cavity, and makes this first drop greater than this second drop.
52. method as claimed in claim 48, wherein the degree of depth of this first-class body cavity is greater than the degree of depth of this second fluid cavity, and makes this first drop greater than this second drop.
53. method as claimed in claim 48, wherein this first bubble generator is located at this first spray orifice than the side near this manifold, this second bubble generator is located at this first spray orifice than the opposite side away from nearly this manifold, the 3rd bubble generator is located at this second spray orifice near a side of this manifold, and the 4th bubble generator is located at this second spray orifice than the opposite side away from this manifold.
54. method as claimed in claim 48, wherein this first bubble is used as the one first virtual air valve (Virtual valve) in this first-class body cavity, be used for after this second bubble produces, limit past this manifold flow of fluid between this first bubble and this second bubble, and the 3rd bubble is used as one second virtual air valve in this second fluid cavity, be used for after the 4th bubble produces, limit past this manifold flow of fluid between the 3rd bubble and the 4th bubble.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01119779XA CN1162222C (en) | 2001-06-01 | 2001-06-01 | Fluid jetting device and method for jetting liquid drops in different size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01119779XA CN1162222C (en) | 2001-06-01 | 2001-06-01 | Fluid jetting device and method for jetting liquid drops in different size |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1389304A true CN1389304A (en) | 2003-01-08 |
| CN1162222C CN1162222C (en) | 2004-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB01119779XA Expired - Fee Related CN1162222C (en) | 2001-06-01 | 2001-06-01 | Fluid jetting device and method for jetting liquid drops in different size |
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| Country | Link |
|---|---|
| CN (1) | CN1162222C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110337368A (en) * | 2017-04-14 | 2019-10-15 | 惠普发展公司，有限责任合伙企业 | Fluid mould with drop weight signal |
-
2001
- 2001-06-01 CN CNB01119779XA patent/CN1162222C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110337368A (en) * | 2017-04-14 | 2019-10-15 | 惠普发展公司，有限责任合伙企业 | Fluid mould with drop weight signal |
| US10967634B2 (en) | 2017-04-14 | 2021-04-06 | Hewlett-Packard Development Company, L.P. | Fluidic die with drop weight signals |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1162222C (en) | 2004-08-18 |
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