DE29823691U1 - Device for generating and ejecting small drops of fluid with a pressure chamber designed as a reflective acoustic element - Google Patents

Device for generating and ejecting small drops of fluid with a pressure chamber designed as a reflective acoustic element

Info

Publication number
DE29823691U1
DE29823691U1 DE29823691U DE29823691U DE29823691U1 DE 29823691 U1 DE29823691 U1 DE 29823691U1 DE 29823691 U DE29823691 U DE 29823691U DE 29823691 U DE29823691 U DE 29823691U DE 29823691 U1 DE29823691 U1 DE 29823691U1
Authority
DE
Germany
Prior art keywords
pressure chamber
fluid
outlet
generating
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE29823691U
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Evotec Biosystems GmbH
Original Assignee
Evotec Biosystems GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Evotec Biosystems GmbH filed Critical Evotec Biosystems GmbH
Priority to DE29823691U priority Critical patent/DE29823691U1/en
Publication of DE29823691U1 publication Critical patent/DE29823691U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01Ink jet
    • B41J2/135Nozzles
    • B41J2/14Structure thereof only for on-demand ink jet heads
    • B41J2/14008Structure of acoustic ink jet print heads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01Ink jet
    • B41J2/015Ink jet characterised by the jet generation process
    • B41J2/02Ink jet characterised by the jet generation process generating a continuous ink jet
    • B41J2/03Ink jet characterised by the jet generation process generating a continuous ink jet by pressure

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (11)

1. Vorrichtung zum Erzeugen und Ausstoßen kleiner Tropfen eines Fluides, mit
  • 1. einer Druckkammer mit mindestens einem Einlaß für das Fluid und einem Auslaß zum Ausgeben von Fluidtropfen und
  • 2. einer Druckimpuls-Erzeugungsvorrichtung zum Erzeugen eines Druckimpulses in der Druckkammer zwecks Ausstoßen eines Fluidtropfens aus dem Auslaß der Druckkammer, dadurch gekennzeichnet,
  • 3. daß die Druckkammer als reflektives akustisches Element für die in dem Fluid durch den Druckimpuls erzeugten akustischen Wellen ausgebildet ist.
1. Device for generating and ejecting small drops of a fluid, with
  • 1. a pressure chamber with at least one inlet for the fluid and an outlet for dispensing fluid drops and
  • 2. a pressure pulse generating device for generating a pressure pulse in the pressure chamber for the purpose of ejecting a drop of fluid from the outlet of the pressure chamber, characterized in that
  • 3. that the pressure chamber is designed as a reflective acoustic element for the acoustic waves generated in the fluid by the pressure pulse.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Druckkammer zwischen dem Fluideinlaß und dem Auslaß einen größeren Durchmesser als der des Einlasses und des Auslasses aufweist.2. Device according to claim 1, characterized in that the Pressure chamber between the fluid inlet and the outlet a larger one Diameter than that of the inlet and the outlet. 3. Vorrichtung nach Anspruch 1 und/oder 2, dadurch gekennzeichnet, daß der Auslaß zum Ausgeben von Fluidtropfen dem Einlaß gegenüberliegend angeordnet ist.3. Device according to claim 1 and / or 2, characterized in that the Outlet for dispensing drops of fluid opposite the inlet is arranged. 4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Druckimpulserzeugungsvorrichtung einen Piezoaktuator zur Erzeugung einer Schwingung mindestens einer die Druckkammer begrenzenden Wand aufweist.4. Device according to one of claims 1 to 3, characterized in that the pressure pulse generating device has a piezo actuator for Generating a vibration of at least one of the pressure chamber has bounding wall. 5. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Druckimpuls-Erzeugungsvorrichtung mindestens ein Heizelement zur Erzeugung einer Dampfblase innerhalb des Fluides der Druckkammer aufweist. 5. Device according to one of claims 1 to 3, characterized in that the pressure pulse generating device has at least one heating element to create a vapor bubble within the fluid of the pressure chamber having.   6. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß Druckimpulse auf Basis elektrostatischer Aktuierung erzeugt werden.6. Device according to one of claims 1 to 3, characterized in that pressure pulses are generated based on electrostatic actuation. 7. Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Druckkammer die Form einer Kapillare aufweist.7. Device according to one of claims 1 to 6, characterized in that the pressure chamber has the shape of a capillary. 8. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die die Druckkammer begrenzenden Wandungen im wesentlichen im Bereich des Auslasses und in den an diesen angrenzenden Bereichen parabolisch ausgestaltet sind.8. Device according to one of claims 1 to 7, characterized in that the walls delimiting the pressure chamber essentially in Area of the outlet and in the areas adjacent to it are parabolic. 9. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die die Druckkammer begrenzenden Wandungen im wesentlichen elliptisch ausgestaltet sind.9. Device according to one of claims 1 to 7, characterized in that the walls delimiting the pressure chamber essentially are elliptical. 10. Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die akustischen Wellen im wesentlichen an der Fluidoberfläche fokussiert werden.10. Device according to one of claims 1 to 9, characterized in that the acoustic waves are essentially on the fluid surface be focused. 11. Vorrichtung nach mindestens einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß die akustischen Wellen im Bereich des Auslasses, insbesondere im Zentrum der Auslaßöffnung, fokussiert werden.11. The device according to at least one of claims 1 to 10, characterized characterized in that the acoustic waves in the area of the outlet, especially in the center of the outlet opening.
DE29823691U 1998-04-16 1998-04-16 Device for generating and ejecting small drops of fluid with a pressure chamber designed as a reflective acoustic element Expired - Lifetime DE29823691U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29823691U DE29823691U1 (en) 1998-04-16 1998-04-16 Device for generating and ejecting small drops of fluid with a pressure chamber designed as a reflective acoustic element

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29823691U DE29823691U1 (en) 1998-04-16 1998-04-16 Device for generating and ejecting small drops of fluid with a pressure chamber designed as a reflective acoustic element
DE19816729 1998-04-16

Publications (1)

Publication Number Publication Date
DE29823691U1 true DE29823691U1 (en) 1999-09-23

Family

ID=26045503

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29823691U Expired - Lifetime DE29823691U1 (en) 1998-04-16 1998-04-16 Device for generating and ejecting small drops of fluid with a pressure chamber designed as a reflective acoustic element

Country Status (1)

Country Link
DE (1) DE29823691U1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002024324A2 (en) * 2000-09-25 2002-03-28 Picoliter Inc. Focused acoustic energy in the preparation and screening of combinatorial libraries
WO2002024325A2 (en) * 2000-09-25 2002-03-28 Picoliter, Inc. Acoustic ejection of fluids from a plurality of reservoirs
WO2002024323A2 (en) * 2000-09-25 2002-03-28 Picoliter Inc. High density molecular arrays on porous surfaces

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002024324A2 (en) * 2000-09-25 2002-03-28 Picoliter Inc. Focused acoustic energy in the preparation and screening of combinatorial libraries
WO2002024325A2 (en) * 2000-09-25 2002-03-28 Picoliter, Inc. Acoustic ejection of fluids from a plurality of reservoirs
WO2002024323A2 (en) * 2000-09-25 2002-03-28 Picoliter Inc. High density molecular arrays on porous surfaces
WO2002024325A3 (en) * 2000-09-25 2003-01-23 Picoliter Inc Acoustic ejection of fluids from a plurality of reservoirs
WO2002024323A3 (en) * 2000-09-25 2003-02-13 Picoliter Inc High density molecular arrays on porous surfaces
WO2002024324A3 (en) * 2000-09-25 2003-03-06 Picoliter Inc Focused acoustic energy in the preparation and screening of combinatorial libraries
EP1870157A3 (en) * 2000-09-25 2008-02-20 Picoliter Inc. Focused acoustic energy in the preparation and screening of combinatorial libraries

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 19991028

R150 Term of protection extended to 6 years

Effective date: 20011031

R151 Term of protection extended to 8 years

Effective date: 20040927

R152 Term of protection extended to 10 years

Effective date: 20060714

R071 Expiry of right