WO2008063223A3 - Fuel injector having encased piezo electric actuator - Google Patents

Fuel injector having encased piezo electric actuator Download PDF

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Publication number
WO2008063223A3
WO2008063223A3 PCT/US2007/011445 US2007011445W WO2008063223A3 WO 2008063223 A3 WO2008063223 A3 WO 2008063223A3 US 2007011445 W US2007011445 W US 2007011445W WO 2008063223 A3 WO2008063223 A3 WO 2008063223A3
Authority
WO
WIPO (PCT)
Prior art keywords
fuel injector
encased
electric actuator
piezo electric
casing
Prior art date
Application number
PCT/US2007/011445
Other languages
French (fr)
Other versions
WO2008063223A2 (en
Inventor
Dennis H Gibson
Jinhui Sun
Original Assignee
Caterpillar Inc
Dennis H Gibson
Jinhui Sun
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 Caterpillar Inc, Dennis H Gibson, Jinhui Sun filed Critical Caterpillar Inc
Publication of WO2008063223A2 publication Critical patent/WO2008063223A2/en
Publication of WO2008063223A3 publication Critical patent/WO2008063223A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0057—Means for avoiding fuel contact with valve actuator, e.g. isolating actuators by using bellows or diaphragms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
    • F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
    • F02M63/0012—Valves
    • F02M63/0014—Valves characterised by the valve actuating means
    • F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
    • F02M63/0026—Valves characterised by the valve actuating means electrical, e.g. using solenoid using piezoelectric or magnetostrictive actuators
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/80—Constructional details
    • H10N30/88—Mounts; Supports; Enclosures; Casings
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/80—Constructional details
    • H10N30/88—Mounts; Supports; Enclosures; Casings
    • H10N30/886—Mechanical prestressing means, e.g. springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/8046—Fuel injection apparatus manufacture, repair or assembly the manufacture involving injection moulding, e.g. of plastic or metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
    • F02M2200/8053—Fuel injection apparatus manufacture, repair or assembly involving mechanical deformation of the apparatus or parts thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/42—Piezoelectric device making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49805—Shaping by direct application of fluent pressure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49877—Assembling or joining of flexible wall, expansible chamber devices [e.g., bellows]

Abstract

An actuator (59) for a fuel injector (32) is disclosed. The actuator has a piezo element (110), a casing (114), and at least one end plate (116). The casing is fabricated through a deep draw process, has bellows (126), and is configured to house the piezo element. The at least one end plate is hermetically connected to an end portion (124) of the casing.
PCT/US2007/011445 2006-06-23 2007-05-11 Fuel injector having encased piezo electric actuator WO2008063223A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/473,135 2006-06-23
US11/473,135 US7429815B2 (en) 2006-06-23 2006-06-23 Fuel injector having encased piezo electric actuator

Publications (2)

Publication Number Publication Date
WO2008063223A2 WO2008063223A2 (en) 2008-05-29
WO2008063223A3 true WO2008063223A3 (en) 2008-07-31

Family

ID=38872679

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/011445 WO2008063223A2 (en) 2006-06-23 2007-05-11 Fuel injector having encased piezo electric actuator

Country Status (2)

Country Link
US (2) US7429815B2 (en)
WO (1) WO2008063223A2 (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9101949B2 (en) 2005-08-04 2015-08-11 Eilaz Babaev Ultrasonic atomization and/or seperation system
US7896539B2 (en) 2005-08-16 2011-03-01 Bacoustics, Llc Ultrasound apparatus and methods for mixing liquids and coating stents
DE102006012845A1 (en) * 2006-03-21 2007-10-04 Daimlerchrysler Ag Injector for storage injection systems
DE102006043027A1 (en) * 2006-09-13 2008-03-27 Epcos Ag Clamping element and piezoelectric actuator with the clamping element
US7896854B2 (en) * 2007-07-13 2011-03-01 Bacoustics, Llc Method of treating wounds by creating a therapeutic solution with ultrasonic waves
US7753285B2 (en) 2007-07-13 2010-07-13 Bacoustics, Llc Echoing ultrasound atomization and/or mixing system
US7901388B2 (en) 2007-07-13 2011-03-08 Bacoustics, Llc Method of treating wounds by creating a therapeutic solution with ultrasonic waves
US7780095B2 (en) 2007-07-13 2010-08-24 Bacoustics, Llc Ultrasound pumping apparatus
US8689728B2 (en) 2007-10-05 2014-04-08 Menendez Adolfo Apparatus for holding a medical device during coating
US20090093870A1 (en) * 2007-10-05 2009-04-09 Bacoustics, Llc Method for Holding a Medical Device During Coating
US20090134240A1 (en) * 2007-11-27 2009-05-28 Caterpillar Inc. Method of making piezoelectrically actuated device
US8016208B2 (en) 2008-02-08 2011-09-13 Bacoustics, Llc Echoing ultrasound atomization and mixing system
US7950594B2 (en) 2008-02-11 2011-05-31 Bacoustics, Llc Mechanical and ultrasound atomization and mixing system
US7830070B2 (en) 2008-02-12 2010-11-09 Bacoustics, Llc Ultrasound atomization system
US8850892B2 (en) 2010-02-17 2014-10-07 Viking At, Llc Smart material actuator with enclosed compensator
WO2012026564A1 (en) * 2010-08-26 2012-03-01 京セラ株式会社 Piezoelectric actuator
WO2013011812A1 (en) * 2011-07-17 2013-01-24 本田技研工業株式会社 Damper with variable damping force
DE102012212264B4 (en) * 2012-07-13 2014-02-13 Continental Automotive Gmbh Method for producing a solid state actuator
DE102012212266B4 (en) 2012-07-13 2015-01-22 Continental Automotive Gmbh fluid injector
US9455398B2 (en) * 2012-10-30 2016-09-27 Kyocera Corporation Piezoelectric actuator and mass flow controller provided with same
CN103645558B (en) * 2012-12-28 2016-08-17 清华大学 Distorting lens
JP5930115B2 (en) * 2013-02-20 2016-06-08 日産自動車株式会社 Motor with inverter
US10276776B2 (en) 2013-12-24 2019-04-30 Viking At, Llc Mechanically amplified smart material actuator utilizing layered web assembly
DE102014215327A1 (en) * 2014-08-04 2016-02-04 Continental Automotive Gmbh Piezo actuator for a fuel injector and fuel injector
CN110052357B (en) * 2019-05-15 2021-06-15 哈尔滨工业大学 Valve-adjustable piezoelectric micro-spraying mechanism applied to high-viscosity fluid spraying

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE697849C (en) * 1935-09-17 1940-10-24 Josef Reiser Process for the production of corrugated pipes
WO1999018346A1 (en) * 1997-10-07 1999-04-15 Fev Motorentechnik Gmbh Injection nozzle with a piezoelectric actuator
DE102004012283A1 (en) * 2003-03-13 2004-11-11 Denso Corp., Kariya Piezoelectric actuator for fuel injector, has piezoelectric elements with respect to which load of specific value is applied in axial direction, based on elastic force of expansion-contraction portion of element storage case

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4377894A (en) * 1980-03-21 1983-03-29 Kawasaki Jukogyo Kabushiki Kaisha Method of lining inner wall surfaces of hollow articles
US4423616A (en) * 1980-08-28 1984-01-03 Pease James F Method of making sheet metal threaded article
JPS58116809A (en) * 1981-11-16 1983-07-12 Seiko Epson Corp Manufacture of crystal oscillator
US5004945A (en) * 1988-09-26 1991-04-02 Nippondenso Co., Ltd. Piezoelectric type actuator
US5113108A (en) * 1988-11-04 1992-05-12 Nec Corporation Hermetically sealed electrostrictive actuator
JPH02250678A (en) * 1989-03-23 1990-10-08 Tokin Corp Laminated piezoelectric actuator
JP2508321B2 (en) * 1989-12-04 1996-06-19 日本電気株式会社 Piezoelectric actuator and manufacturing method thereof
JPH04179286A (en) * 1990-11-14 1992-06-25 Nec Corp Multilayered piezoelectric actuator
JPH04264784A (en) * 1991-02-20 1992-09-21 Nec Corp Electrostrictive effect element and manufacture thereof
JP2692396B2 (en) * 1991-02-22 1997-12-17 日本電気株式会社 Piezoelectric actuator and manufacturing method thereof
JPH05129674A (en) * 1991-10-30 1993-05-25 Nec Kansai Ltd Piezoelectric actuator
JPH05315666A (en) * 1992-05-08 1993-11-26 Nec Corp Electrostriction effect element
DE19826339A1 (en) * 1998-06-12 1999-12-16 Bosch Gmbh Robert Valve for controlling liquids
DE10025997A1 (en) 2000-05-25 2001-12-06 Bosch Gmbh Robert Piezo actuator
JP4356268B2 (en) 2000-06-26 2009-11-04 株式会社デンソー Fuel injection device
DE10055639A1 (en) 2000-11-10 2002-05-23 Siemens Ag Injector for injecting fuel into combustion chamber has recess running round underside of actuator housing
DE10118563A1 (en) 2001-04-14 2002-11-07 Bosch Gmbh Robert Piezoelectric actuator module
US6962597B2 (en) * 2001-10-24 2005-11-08 Scimed Life Systems, Inc. Inner member support block
DE10245109A1 (en) 2002-09-27 2004-04-08 Siemens Ag Fuel injector valve for diesel and petrol engines with piezoelectric actuator enclosed in cooling fluid
US7145282B2 (en) * 2004-07-15 2006-12-05 Delphi Technologies, Inc. Actuator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE697849C (en) * 1935-09-17 1940-10-24 Josef Reiser Process for the production of corrugated pipes
WO1999018346A1 (en) * 1997-10-07 1999-04-15 Fev Motorentechnik Gmbh Injection nozzle with a piezoelectric actuator
DE102004012283A1 (en) * 2003-03-13 2004-11-11 Denso Corp., Kariya Piezoelectric actuator for fuel injector, has piezoelectric elements with respect to which load of specific value is applied in axial direction, based on elastic force of expansion-contraction portion of element storage case

Also Published As

Publication number Publication date
WO2008063223A2 (en) 2008-05-29
US20070295832A1 (en) 2007-12-27
US7429815B2 (en) 2008-09-30
US8240014B2 (en) 2012-08-14
US20080315719A1 (en) 2008-12-25

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