EP3362671B8 - Piezoelectric injector for fuel injection - Google Patents

Piezoelectric injector for fuel injection Download PDF

Info

Publication number
EP3362671B8
EP3362671B8 EP16779084.9A EP16779084A EP3362671B8 EP 3362671 B8 EP3362671 B8 EP 3362671B8 EP 16779084 A EP16779084 A EP 16779084A EP 3362671 B8 EP3362671 B8 EP 3362671B8
Authority
EP
European Patent Office
Prior art keywords
fuel injection
piezoelectric injector
injector
piezoelectric
fuel
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.)
Active
Application number
EP16779084.9A
Other languages
German (de)
French (fr)
Other versions
EP3362671A1 (en
EP3362671B1 (en
Inventor
Gerd Schmutzler
Christoph Heukenroth
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.)
Vitesco Technologies GmbH
Original Assignee
CPT Group 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 CPT Group GmbH filed Critical CPT Group GmbH
Publication of EP3362671A1 publication Critical patent/EP3362671A1/en
Publication of EP3362671B1 publication Critical patent/EP3362671B1/en
Application granted granted Critical
Publication of EP3362671B8 publication Critical patent/EP3362671B8/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F02M63/0014—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
    • 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
    • F02M51/00—Fuel-injection apparatus characterised by being operated electrically
    • F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
    • F02M51/0603—Injectors peculiar thereto with means directly operating the valve needle using piezoelectric or magnetostrictive operating means
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/08—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves opening in direction of fuel flow
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/167—Means for compensating clearance or thermal expansion
    • 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
    • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
    • F02M63/0033—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
    • 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
    • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
    • F02M63/0077—Valve seat details
    • 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
    • F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
    • F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
    • 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
    • F02M2200/70—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger
    • F02M2200/703—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic
    • F02M2200/708—Linkage between actuator and actuated element, e.g. between piezoelectric actuator and needle valve or pump plunger hydraulic with hydraulic chambers formed by a movable sleeve

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
EP16779084.9A 2015-10-14 2016-10-10 Piezoelectric injector for fuel injection Active EP3362671B8 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015219912.6A DE102015219912B3 (en) 2015-10-14 2015-10-14 Piezo injector for fuel injection
PCT/EP2016/074182 WO2017063988A1 (en) 2015-10-14 2016-10-10 Piezoelectric injector for fuel injection

Publications (3)

Publication Number Publication Date
EP3362671A1 EP3362671A1 (en) 2018-08-22
EP3362671B1 EP3362671B1 (en) 2019-07-17
EP3362671B8 true EP3362671B8 (en) 2019-12-18

Family

ID=57124009

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16779084.9A Active EP3362671B8 (en) 2015-10-14 2016-10-10 Piezoelectric injector for fuel injection

Country Status (6)

Country Link
US (1) US20180298861A1 (en)
EP (1) EP3362671B8 (en)
KR (1) KR102082589B1 (en)
CN (1) CN108138716A (en)
DE (1) DE102015219912B3 (en)
WO (1) WO2017063988A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101940563B1 (en) * 2017-05-12 2019-01-22 주식회사 로보프린트 Method for processing image, method for automatically printing image and nozzle for automatic printing apparatus

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5860597A (en) * 1997-03-24 1999-01-19 Cummins Engine Company, Inc. Injection rate shaping nozzle assembly for a fuel injector
DE19821768C2 (en) * 1998-05-14 2000-09-07 Siemens Ag Dosing device and dosing method
GB9811649D0 (en) * 1998-05-29 1998-07-29 Lucas Ind Plc Fuel injector
GB9925753D0 (en) * 1999-10-29 1999-12-29 Lucas Industries Ltd Fuel injector
DE60104906T2 (en) * 2000-11-13 2005-01-05 Siemens Vdo Automotive Corporation, Auburn Hills MAGNETOHYDRAULIC BALANCING DEVICE FOR FUEL INJECTION NOZZLE
DE10133265A1 (en) * 2001-07-09 2003-01-23 Bosch Gmbh Robert Fuel injection valve with piezoelectric or magnetostrictive actuator, has hydraulic coupling valve closure body and seat surface urged pressed together by spring
DE10145620B4 (en) * 2001-09-15 2006-03-02 Robert Bosch Gmbh Valve for controlling fluids
DE10148594A1 (en) * 2001-10-02 2003-04-10 Bosch Gmbh Robert Fuel injection valve has corrugated tube around guide sleeve with sealed connections to pistons that seals storage chamber for hydraulic fluid with respect to enclosing fuel chamber
DE10360450A1 (en) * 2003-02-27 2004-09-09 Robert Bosch Gmbh Fuel injection valve with a piezoelectric or magnetorestrictive actuator for a combustion engine has hydraulic coupling with flexible section having a restricted outer expansion
DE10344061A1 (en) * 2003-09-23 2005-04-28 Siemens Ag Injection valve with a hydraulic compensation element
DE102005009148A1 (en) 2005-03-01 2006-09-07 Robert Bosch Gmbh Fuel injector with direct-acting injection valve member with double seat
DE102005040912A1 (en) * 2005-08-30 2007-03-08 Robert Bosch Gmbh injection
EP1811167A1 (en) * 2006-01-24 2007-07-25 Siemens VDO Automotive S.p.A. Injector, compensation assembly for the injector, and relieving device for the compensation assembly and method of assembling and calibrating the injector
US7665445B2 (en) * 2008-04-18 2010-02-23 Caterpillar Inc. Motion coupler for a piezoelectric actuator
DE102011079468A1 (en) * 2011-07-20 2013-01-24 Continental Automotive Gmbh piezoinjector
DE102012219867A1 (en) * 2012-10-30 2014-04-30 Robert Bosch Gmbh Fuel injector with piezo actuator
DE102013219225A1 (en) * 2013-09-25 2015-03-26 Continental Automotive Gmbh Piezo injector for direct fuel injection

Also Published As

Publication number Publication date
EP3362671A1 (en) 2018-08-22
EP3362671B1 (en) 2019-07-17
KR102082589B1 (en) 2020-02-27
DE102015219912B3 (en) 2017-04-06
WO2017063988A1 (en) 2017-04-20
CN108138716A (en) 2018-06-08
KR20180063894A (en) 2018-06-12
US20180298861A1 (en) 2018-10-18

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