ES2527507T3 - Un pistón posicionado para movimiento de vaivén en un cilindro de motor de combustión - Google Patents

Un pistón posicionado para movimiento de vaivén en un cilindro de motor de combustión Download PDF

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Publication number
ES2527507T3
ES2527507T3 ES11705170.6T ES11705170T ES2527507T3 ES 2527507 T3 ES2527507 T3 ES 2527507T3 ES 11705170 T ES11705170 T ES 11705170T ES 2527507 T3 ES2527507 T3 ES 2527507T3
Authority
ES
Spain
Prior art keywords
piston
section
flame
protrusions
recess
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
ES11705170.6T
Other languages
English (en)
Inventor
Jan Eismark
Michael Balthasar
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.)
Volvo Technology AB
Original Assignee
Volvo Technology AB
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 Volvo Technology AB filed Critical Volvo Technology AB
Application granted granted Critical
Publication of ES2527507T3 publication Critical patent/ES2527507T3/es
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • F02F3/26—Pistons  having combustion chamber in piston head
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0618—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston having in-cylinder means to influence the charge motion
    • F02B23/0627—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston having in-cylinder means to influence the charge motion having additional bores or grooves machined into the piston for guiding air or charge flow to the piston bowl
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0645—Details related to the fuel injector or the fuel spray
    • F02B23/0648—Means or methods to improve the spray dispersion, evaporation or ignition
    • F02B23/0651—Means or methods to improve the spray dispersion, evaporation or ignition the fuel spray impinging on reflecting surfaces or being specially guided throughout the combustion space
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0678—Unconventional, complex or non-rotationally symmetrical shapes of the combustion space, e.g. flower like, having special shapes related to the orientation of the fuel spray jets
    • F02B23/0693—Unconventional, complex or non-rotationally symmetrical shapes of the combustion space, e.g. flower like, having special shapes related to the orientation of the fuel spray jets the combustion space consisting of step-wise widened multiple zones of different depth
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
    • F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
    • F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
    • F02B23/0696—W-piston bowl, i.e. the combustion space having a central projection pointing towards the cylinder head and the surrounding wall being inclined towards the cylinder wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

Un pistón (3) dispuesto para movimiento de vaivén en un cilindro de motor de combustión (2) entre una posición de punto muerto inferior y una posición de punto muerto superior, dicho pistón (3) incluyendo una cabeza de pistón (16) comprendiendo una superficie superior orientada a una cámara de combustión (7), dicha cabeza de pistón (16) conteniendo un rebaje de pistón conformado mediante una cavidad con una abertura hacia fuera, dicho rebaje de pistón comprendiendo una sección de rebaje externa ensanchada hacia el exterior (20) que tiene una forma cóncava curvilínea en sección transversal, dicho pistón (3) teniendo un área de impacto (41) de un frente de llama en progresión en dicha sección de rebaje externo (20), y en el que sensiblemente a mitad de camino entre dichas áreas de impacto (41) y en un plano sensiblemente perpendicular a dicho movimiento de vaivén están dispuestas unas protuberancias (70) que sobresalen en la cámara de combustión (7) y que tienen una forma suave adaptada para conservar la energía cinética en un frente de llama y en el que cada una de dichas protuberancias (70) tiene una forma de un resalte longitudinal que se extiende solo en el área de rebaje externo en un plano sensiblemente paralelo a o casi paralelo a dicho movimiento de vaivén, y en el que dicho resalte comprende un flanco lateral izquierdo (80), una sección superior (81) y un flanco lateral derecho (82) cuando se ve en un plano perpendicular a dicho movimiento de vaivén, en el que dichas protuberancias (70) están dispuestas para redirigir el progreso circular de la llama principalmente hacia un eje central (15) del pistón (3) con una interacción mínima de llama a llama, y en el que está dispuesta una sección de transición (83) entre cada uno de dichos flancos laterales (80, 82) y la sección superior (81) caracterizado por el hecho de que dicha sección de transición (83) comprende un borde de desviación (71) a fin de minimizar las pérdidas de flujo.

Description

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Claims (1)

  1. imagen1
ES11705170.6T 2010-02-18 2011-02-18 Un pistón posicionado para movimiento de vaivén en un cilindro de motor de combustión Active ES2527507T3 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE1000163 2010-02-18
SE1000163 2010-02-18
PCT/EP2011/000779 WO2011101154A1 (en) 2010-02-18 2011-02-18 A piston positioned for reciprocal movement in a combustion engine cylinder

Publications (1)

Publication Number Publication Date
ES2527507T3 true ES2527507T3 (es) 2015-01-26

Family

ID=43797919

Family Applications (2)

Application Number Title Priority Date Filing Date
ES11705170.6T Active ES2527507T3 (es) 2010-02-18 2011-02-18 Un pistón posicionado para movimiento de vaivén en un cilindro de motor de combustión
ES11706166.3T Active ES2539852T3 (es) 2010-02-18 2011-02-18 Un pistón posicionado para movimiento alternativo en un cilindro de un motor de combustión

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES11706166.3T Active ES2539852T3 (es) 2010-02-18 2011-02-18 Un pistón posicionado para movimiento alternativo en un cilindro de un motor de combustión

Country Status (7)

Country Link
US (2) US8646428B2 (es)
EP (2) EP2536929B1 (es)
JP (2) JP5741594B2 (es)
CN (2) CN102770633B (es)
BR (2) BR112012020548B1 (es)
ES (2) ES2527507T3 (es)
WO (2) WO2011101154A1 (es)

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KR101262577B1 (ko) * 2011-07-18 2013-05-08 현대자동차주식회사 디젤엔진 피스톤
WO2014094796A1 (en) * 2012-12-18 2014-06-26 Volvo Truck Corporation Piston for a cylinder of a combustion engine
US9377002B2 (en) 2013-02-20 2016-06-28 University Of Southern California Electrodes for multi-point ignition using single or multiple transient plasma discharges
FR3016926B1 (fr) * 2014-01-29 2018-12-07 IFP Energies Nouvelles Moteur a combustion a injection directe de combustible et plus particulierement moteur a allumage par compression avec faible taux de compression
WO2017108103A1 (en) * 2015-12-22 2017-06-29 Volvo Truck Corporation A piston crown for a piston in an internal combustion arrangement
US9909489B1 (en) 2016-10-05 2018-03-06 Caterpillar Inc. Piston fluid passages for reduced soot
SE542212C2 (en) 2017-03-17 2020-03-10 Scania Cv Ab A piston with a piston bowl comprising protrusions for an internal combustion engine
KR102463187B1 (ko) 2017-07-28 2022-11-03 현대자동차 주식회사 피스톤 및 이를 포함하는 엔진
US10774782B2 (en) 2018-06-07 2020-09-15 Caterpillar Inc. Piston design for flow re-direction
US10731544B2 (en) 2018-09-24 2020-08-04 Caterpillar Inc. Internal combustion engine and method for its operation
US10876464B2 (en) 2018-09-25 2020-12-29 Caterpillar Inc. Piston design for flow re-direction
US12352200B2 (en) * 2018-11-26 2025-07-08 Caterpillar Inc. Piston for compression-ignition engine having antebowl and engine operating strategy utilizing same
US10718257B1 (en) * 2019-01-15 2020-07-21 Caterpillar Inc. Dual-fuel combustion method and system
US10704492B1 (en) * 2019-01-15 2020-07-07 Caterpillar Inc. Piston for an internal combustion engine
US10837401B2 (en) 2019-01-20 2020-11-17 Ge Global Sourcing Llc Piston crown for a combustion system and an associated method thereof
US11293374B2 (en) 2020-07-31 2022-04-05 Fev Gmbh Piston bowl geometries for internal combustion engines
EP4551801A1 (en) * 2022-07-04 2025-05-14 Volvo Truck Corporation A piston and an internal combustion engine system
US12624671B1 (en) 2024-11-14 2026-05-12 Deere & Company Piston and injector for reduced head thermal loading

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Also Published As

Publication number Publication date
BR112012020548B1 (pt) 2020-12-15
JP5741594B2 (ja) 2015-07-01
CN102822470B (zh) 2015-09-23
EP2536929B1 (en) 2014-11-05
BR112012020548A2 (pt) 2017-02-14
CN102770633A (zh) 2012-11-07
US20130047950A1 (en) 2013-02-28
BR112012020211A2 (pt) 2016-05-17
JP2013519834A (ja) 2013-05-30
BR112012020211B1 (pt) 2020-12-15
ES2539852T3 (es) 2015-07-06
US20130199493A1 (en) 2013-08-08
US9027529B2 (en) 2015-05-12
WO2011101155A1 (en) 2011-08-25
JP2013519835A (ja) 2013-05-30
WO2011101154A1 (en) 2011-08-25
CN102770633B (zh) 2015-09-30
EP2536929A1 (en) 2012-12-26
CN102822470A (zh) 2012-12-12
JP5748156B2 (ja) 2015-07-15
EP2536930A1 (en) 2012-12-26
EP2536930B1 (en) 2015-03-18
US8646428B2 (en) 2014-02-11

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