WO2000001460A1 - Dispositif d'alimentation en combustible et en materiaux - Google Patents
Dispositif d'alimentation en combustible et en materiaux Download PDFInfo
- Publication number
- WO2000001460A1 WO2000001460A1 PCT/JP1999/003509 JP9903509W WO0001460A1 WO 2000001460 A1 WO2000001460 A1 WO 2000001460A1 JP 9903509 W JP9903509 W JP 9903509W WO 0001460 A1 WO0001460 A1 WO 0001460A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cell
- liquid
- pressurizing chamber
- bubble trap
- flow path
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0068—General arrangements, e.g. flowsheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
Definitions
- the present invention relates to a raw material / fuel discharge device used for various machines that operate by discharging a liquid raw material or a fuel and various machines that process the liquid by discharging a liquid raw material or a fuel.
- the liquid ejection device is disclosed in, for example, Japanese Patent Application Laid-Open No. 6-40030.
- air bubbles formed by mechanical vibration generated according to the use environment enter the pressurizing chamber (1) of the liquid discharge device and pressurize the pressurizing chamber (1).
- the intruded gas bubbles deform in response to the pressure and absorb a part or all of the pressurized pressure, which often results in the discharge of the target liquid not being performed as desired.
- the present invention provides a raw material / fuel discharge device having a structure capable of reliably discharging bubbles that have entered a liquid discharge device in order to prevent a discharge failure or discharge failure caused by such intrusion bubbles. Is to be provided. Disclosure of the invention
- the present inventors have conducted various studies in view of the above-mentioned current situation, and as a result, have found that a flow path (3) in which a bubble trap cell for trapping bubbles generated by mechanical vibration or the like communicates with the pressurized chamber is provided. With this arrangement, not only absorption of the pressurized pressure by the invading air bubbles can be made substantially zero, but also the pressure p, inside the air bubble trapping cell (2) at the time of liquid ejection, outside the device. Atmospheric pressure p. The inventors have found that by providing an element for making the size larger than the above, the trapped bubbles can be released to the outside of the cell, thereby completing the present invention.
- a pressurizing means (4) for discharging at least one liquid A pressurizing chamber (1), a flow path (3) communicating with the pressurizing chamber (1), and a bubble trap cell (2) communicating with the pressurizing chamber (1) via the flow path (3)
- a discharge device for a raw material and a fuel comprising a liquid discharge structure having the following.
- FIG. 1 is a side cross-sectional view of one embodiment of a raw material / fuel discharge device (hereinafter, also referred to as a liquid discharge device) according to the present invention.
- FIG. 2 shows the piezoelectric Z-electrostrictive film type devices (4) and (5), the pressurizing chamber (1), the flow path (3), and the cell for trapping bubbles in one embodiment of the liquid ejection apparatus according to the present invention.
- FIG. 3 is an overhead view schematically showing the positional relationship and size of (2).
- FIG. 3 is a side sectional view of another embodiment of the liquid ejection device according to the present invention.
- FIG. 4 shows the positional relationship and size of the pressurizing chamber (1), the flow path (3), and the bubble trapping cell (2) in another embodiment of the liquid ejection apparatus according to the present invention shown in FIG.
- FIG. 1 shows one embodiment of a raw material / fuel discharge device (liquid discharge device) according to the present invention.
- the raw material / fuel discharge device includes a pressurizing means for discharging at least one liquid, and discharge.
- Pressurizing chamber (1) which is also a temporary storage means for liquid, and the same pressurizing chamber
- the liquid discharge structure includes a flow path (3) communicating with (1) and a bubble trap cell (2) communicating with the pressurizing chamber via the flow path (3).
- a discharge device for raw material / fuel may be made of a material composed of a few hundred units.
- the above-mentioned structure is usually composed of a structure in which two structures are stacked in two layers from the viewpoint of device compression, and the pressurizing chamber (1) and the bubble trap cell (2) ,
- the channel (3) located in the first layer via the partition wall and communicating with the pressure chamber is located in the second layer located below the first layer, and the channel (3) One end is located below the pressurized chamber, and the other end is located below the pressurized chamber (1) and the cell for bubble trap (2).
- micro holes (11) and (12) for preventing the liquid from flowing back in order to move the liquid in one direction. Movement is performed.
- a piezoelectric Z-electrostrictive film element (4) is usually employed as the pressurizing means for discharging the liquid.
- the piezoelectric Z electrostrictive film element is a well-known member for those skilled in the art.
- the method of disposing the liquid ejection structure may be in accordance with a known method.
- the bubble trap cell (2) is provided independently of the pressurizing chamber (1) in order to promote the discharge of bubbles by the pressure applied to the pressurizing chamber (1). It is preferable to dispose the piezoelectric Z electrostrictive film type element (5) on the same cell (2) so that pressure can be applied. By adopting such a configuration, the air bubbles trapped by the cell (2) can be reliably pushed out of the cell, and absorption of the pressurized pressure by the air bubbles can be avoided.
- the structure for liquid discharge formed as a multilayer structure is formed by a method described below (paragraph numbers 0 0 1 0 to 0 0 of the specification of Japanese Patent Application No. Hei 9-335520). According to the method described in (13), a ceramic material can be used, molded into a predetermined shape, and this molded body can be integrally fired.
- a plate formed of a green sheet which is an obstruction plate serving as an upper lid of the liquid ejection device, and a green sheet provided with a pressure chamber and a window serving as a cell for a bubble trap at predetermined locations, respectively.
- the separated spacer plate, a plate formed of a green sheet for partitioning having two backflow prevention micro holes, and a discharge liquid distribution tank and a window serving as a flow path are provided at predetermined locations, respectively.
- a structure obtained by laminating a spacer plate formed of the provided Darine sheet and a nozzle plate which is a nozzle portion formed of a thin flat green sheet is integrally fired and manufactured.
- the pressurizing chamber (1) communicates with the flow path (3) through the microhole for preventing backflow 1 (11).
- the flow path (1) is used to replenish the liquid to be discharged as desired. 3) adjacent to In addition, it communicates with a discharge liquid distribution tank (8) provided through a partition through a micro hole (12) for backflow prevention.
- the pressurizing chamber (1) usually has a cylindrical shape, a long cylindrical shape, a rectangular parallelepiped, or the like, and the volume thereof may be determined according to the use mode.
- the shape of the bubble trapping cell (2) is preferably a shape such as a long cylinder, which tends to increase the internal flow velocity during liquid ejection.
- the volume of the bubble trapping cell (2) is preferably smaller than that of the pressurizing chamber (1), and is 1: 2 or more, preferably 1: 4 or more.
- the reason for reducing the volume of the bubble trap cell (2) compared to the volume of the pressurized chamber (1) is to apply a relatively weak pressure to the pressurized chamber (1) and apply a relatively weak pressure. This is because the flow velocity in the bubble trapping cell (2) can be set to a flow velocity sufficient to discharge trapped bubbles.
- the pressure p of the bubble trap cell (2) in the that the bubbles trapped by smaller than the pressure p 2 in the pressure chamber enters the flow path (3) the street pressurizing chamber (1) Can be prevented.
- the pressure pt inside the bubble trap cell (2) is changed to the outside air pressure p outside the device.
- a piezoelectric Z-electrostrictive film element (5) may be provided above the bubble trapping cell.
- the piezoelectric Z-electrostrictive membrane element (4) provided above the pressurized chamber (1) is connected to the piezoelectric Z-electrode provided above the bubble trapping cell (2).
- the pressure transmitted from the pressurized chamber and the piezoelectric Z-electrode provided on the top of the bubble trapping cell (2) may be applied additively.
- the time difference operation between the two piezoelectric / electrostrictive film elements (4) and (5) may be performed by a combination of a CPU and a relay circuit (not shown), a delay circuit (not shown), and the like.
- the flow path (3) has a substantially central part under a partition provided between the bubble trap cell (2) and the pressurizing chamber (1), and one end under the pressurizing chamber (1). The other end may be provided so as to be located below the bubble trap cell (2).
- About flow path (3) There is no particular limitation on the shape, but the cross-sectional area should be small and slender so that the flow rate at the time of liquid discharge can be easily obtained, and at the same time, if air bubbles enter this flow path However, it is preferable that the shape is such that the volume is as small as possible so that the air bubbles can be discharged more easily.
- the volume may be one-fourth or less the volume of the pressurized chamber (1) and the same as or less than the volume of the bubble trap cell (2).
- Fig. 2 shows an overhead view to schematically show the positional relationship and size of (5) and the pressurized chamber (1), flow path (3), and bubble trap cell (2). is there.
- Figure 2 shows an overhead view to schematically show the positional relationship and size of (5) and the pressurized chamber (1), flow path (3), and bubble trap cell (2). is there.
- Figure 2 shows an overhead view to schematically show the positional relationship and size of (5) and the pressurized chamber (1), flow path (3), and bubble trap cell (2). is there.
- (1) is a pressurized chamber
- (2) is a bubble trap cell
- (3) is a flow channel provided in a layer located below the pressurized chamber (1) and the bubble trap cell (2).
- (4) is the piezoelectric Z-electrostrictive membrane element placed above the pressurized chamber (1)
- (5) is the piezoelectric Z-electrode placed above the bubble trap cell (2).
- 3 shows a strained film element.
- Micro-holes for preventing backflow between the cells of the liquid discharge nozzle (9), the flow path (3), the pressurizing chamber (1), and the pressurizing chamber (1) and the discharge liquid distribution tank (8) The 1 (1 1) and anti-reflux micro-holes-2 (1 2) are used between the pressure in each cell to allow the trapped air bubbles to be released smoothly. ⁇ Type so that it keep easily the relationship P t ⁇ P 2, the shape, it is preferable to determine the size, etc.. Pressurizing chamber (1) and flow path
- the fine hole for backflow prevention 1 (11) between (3) and (3) is configured such that its longitudinal section becomes slightly smaller in diameter toward the flow path (3).
- each of the micro holes for backflow prevention 1 (1 1) and the micro holes for back flow prevention 2 (1 2) is preferably circular. If desired, a plurality of pressure chambers may be provided for each pressurizing chamber.
- FIG. 3 is a view showing another embodiment of the liquid ejecting apparatus according to the present invention. It is an overhead view which shows typically the shape and positional relationship of the chamber (1), the flow path (3), and the cell (2) for bubble trap.
- FIG. 1 is a side cross-sectional view of one embodiment of the liquid ejection device according to the present invention.
- the internal pressure of the bubble trap cell (2) is forcibly reduced below the external pressure, and bubbles are taken into the cell.
- the piezoelectric Z-electrostrictive membrane element (4) was operated to push out a predetermined amount of liquid in the pressurized chamber (1), and was pushed out of the bubble trap cell (2) through the flow path (3) into water. However, ejection of liquid and emission of bubbles were observed. Industrial applicability
- the device according to the present invention is useful as a discharge device in burning or drying a fuel or various liquids that require stable liquid discharge. That is, in the case of chemical synthesis or powder production, for example, a liquid discharging device for supplying a liquid for a reaction raw material or drying a solution containing a target product, and various liquid fuels such as petroleum including petroleum fungi. It can also be suitably used as a discharge device for a device.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
- Degasification And Air Bubble Elimination (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Fuel Cell (AREA)
- Reciprocating Pumps (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99926842A EP1093837A4 (en) | 1998-07-02 | 1999-06-30 | DISPENSER DEVICE FOR FABRICS AND FUELS |
US09/719,954 US6485275B1 (en) | 1998-07-02 | 1999-06-30 | Device for discharging raw material-fuel |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18781098A JP3570895B2 (ja) | 1998-07-02 | 1998-07-02 | 原料・燃料用吐出装置 |
JP10/187810 | 1998-07-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000001460A1 true WO2000001460A1 (fr) | 2000-01-13 |
Family
ID=16212646
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1999/003509 WO2000001460A1 (fr) | 1998-07-02 | 1999-06-30 | Dispositif d'alimentation en combustible et en materiaux |
Country Status (4)
Country | Link |
---|---|
US (1) | US6485275B1 (ja) |
EP (1) | EP1093837A4 (ja) |
JP (1) | JP3570895B2 (ja) |
WO (1) | WO2000001460A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7611897B2 (en) | 2001-02-06 | 2009-11-03 | Pioneer Hi-Bred International, Inc. | AP1 amine oxidase variants |
EP2275536A1 (en) | 2002-08-06 | 2011-01-19 | Verdia, Inc. | AP1 amine oxidase variants |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6474566B1 (en) * | 2000-06-20 | 2002-11-05 | Ngk Insulators, Ltd. | Drop discharge device |
TW558611B (en) * | 2001-07-18 | 2003-10-21 | Matsushita Electric Ind Co Ltd | Small pump, cooling system and portable equipment |
EP1300585A3 (en) * | 2001-10-02 | 2003-06-18 | Ngk Insulators, Ltd. | Liquid injection apparatus |
KR20040036173A (ko) * | 2002-10-23 | 2004-04-30 | 김종원 | 피에조 엑츄에이터로 구동되는 마이크로 압축기 |
JP4678135B2 (ja) * | 2003-06-17 | 2011-04-27 | セイコーエプソン株式会社 | ポンプ |
US7396112B2 (en) | 2004-03-24 | 2008-07-08 | Fujifilm Corporation | Inkjet recording head and inkjet recording apparatus |
JP4759940B2 (ja) * | 2004-06-18 | 2011-08-31 | コニカミノルタホールディングス株式会社 | 送液装置及び燃料電池装置 |
JP5903769B2 (ja) * | 2011-03-29 | 2016-04-13 | セイコーエプソン株式会社 | 液体噴射ヘッドおよび液体噴射装置 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61105150U (ja) * | 1984-12-14 | 1986-07-04 | ||
JPH07314670A (ja) * | 1994-05-25 | 1995-12-05 | Seikosha Co Ltd | インクジェットヘッド |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1450340A (en) * | 1973-08-16 | 1976-09-22 | Matsushita Electric Ind Co Ld | Arrangements for applying liquid droplets to a surface |
US4353078A (en) * | 1979-09-24 | 1982-10-05 | International Business Machines Corporation | Ink jet print head having dynamic impedance adjustment |
JPS58108158A (ja) * | 1981-12-23 | 1983-06-28 | Ricoh Co Ltd | インクジエツト記録装置 |
JPS6111473A (ja) * | 1984-06-27 | 1986-01-18 | Nitsukisou Eiko Kk | 往復動ポンプにおける自動ガス抜き装置 |
JPS61105150A (ja) | 1984-10-29 | 1986-05-23 | Nippon Telegr & Teleph Corp <Ntt> | 情報転送回路 |
US4695854A (en) | 1986-07-30 | 1987-09-22 | Pitney Bowes Inc. | External manifold for ink jet array |
US4835554A (en) * | 1987-09-09 | 1989-05-30 | Spectra, Inc. | Ink jet array |
CH681168A5 (en) * | 1989-11-10 | 1993-01-29 | Westonbridge Int Ltd | Micro-pump for medicinal dosing |
JP2844808B2 (ja) | 1990-03-02 | 1999-01-13 | 日本電気株式会社 | インクジェットヘッド駆動方法 |
JP3144948B2 (ja) | 1992-05-27 | 2001-03-12 | 日本碍子株式会社 | インクジェットプリントヘッド |
US6017117A (en) * | 1995-10-31 | 2000-01-25 | Hewlett-Packard Company | Printhead with pump driven ink circulation |
JPH1148475A (ja) * | 1997-07-31 | 1999-02-23 | Seiko Epson Corp | インクジェット式記録ヘッド |
JP3835942B2 (ja) | 1997-12-05 | 2006-10-18 | 日本碍子株式会社 | 粉末の製造方法 |
-
1998
- 1998-07-02 JP JP18781098A patent/JP3570895B2/ja not_active Expired - Lifetime
-
1999
- 1999-06-30 US US09/719,954 patent/US6485275B1/en not_active Expired - Fee Related
- 1999-06-30 WO PCT/JP1999/003509 patent/WO2000001460A1/ja not_active Application Discontinuation
- 1999-06-30 EP EP99926842A patent/EP1093837A4/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61105150U (ja) * | 1984-12-14 | 1986-07-04 | ||
JPH07314670A (ja) * | 1994-05-25 | 1995-12-05 | Seikosha Co Ltd | インクジェットヘッド |
Non-Patent Citations (1)
Title |
---|
See also references of EP1093837A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7611897B2 (en) | 2001-02-06 | 2009-11-03 | Pioneer Hi-Bred International, Inc. | AP1 amine oxidase variants |
EP2275536A1 (en) | 2002-08-06 | 2011-01-19 | Verdia, Inc. | AP1 amine oxidase variants |
Also Published As
Publication number | Publication date |
---|---|
US6485275B1 (en) | 2002-11-26 |
EP1093837A1 (en) | 2001-04-25 |
JP3570895B2 (ja) | 2004-09-29 |
EP1093837A4 (en) | 2001-09-05 |
JP2000015003A (ja) | 2000-01-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP3570895B2 (ja) | 原料・燃料用吐出装置 | |
JP3352949B2 (ja) | 原料・燃料用吐出装置 | |
US7571992B2 (en) | Pressure compensation structure for microelectromechanical systems | |
US11117156B2 (en) | Microfluidic device for spraying small drops of liquids | |
US8033659B2 (en) | Liquid ejecting apparatus | |
JP6751256B2 (ja) | 液体噴射ヘッドユニット及び液体噴射装置 | |
EP2343456B1 (en) | Piezoelectric pump | |
EP1333519A2 (en) | Fuel cell with fuel droplet fuel supply | |
JP3673893B2 (ja) | 液滴吐出装置 | |
US8651630B2 (en) | Fluid ejector structure | |
JP2002240285A (ja) | 波形の多層膜構造を持つ、静電的にアクチュエートされるデバイス | |
US8845307B2 (en) | Micro-ejector and method for manufacturing the same | |
WO2003084758A1 (en) | Liquid injection head | |
JP2004096069A (ja) | 圧電アクチュエータ、及び、液体噴射ヘッド | |
US20050069429A1 (en) | Liquid delivering device | |
JP2008173959A (ja) | 液滴吐出ヘッド、エネルギー変換素子、圧電デバイス、mems構造、カンチレバー型アクチュエータ、圧電センサー及び圧電リニアモータ | |
TW559593B (en) | Novel electrode patterns for piezo-electric ink jet printer | |
Demirci et al. | Femtoliter to picoliter droplet generation for organic polymer deposition using single reservoir ejector arrays | |
JP2004064045A (ja) | 圧電素子、圧電アクチュエータ、及び、液体噴射ヘッド | |
US20110279552A1 (en) | Ink-jet head, ink-jet apparatus, and method of manufacturing the same | |
US8714705B2 (en) | Liquid ejection head | |
Baek et al. | T-Jet: A novel thermal inkjet printhead with monolithically fabricated nozzle plate on SOI wafer | |
JP2005021771A (ja) | 圧電アクチュエータ、液体吐出装置及び電子機器 | |
JP4430337B2 (ja) | 液滴放出のための放出装置 | |
TW200846192A (en) | Micro actuating fluid supplying device and micro pump structure and printhead structure using same |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 09719954 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1999926842 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1999926842 Country of ref document: EP |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1999926842 Country of ref document: EP |