BRPI0404278A - Câmara de combustão com uma superfìcie cÈncava e três superfìcies convexas - Google Patents

Câmara de combustão com uma superfìcie cÈncava e três superfìcies convexas

Info

Publication number
BRPI0404278A
BRPI0404278A BR0404278-6A BRPI0404278A BRPI0404278A BR PI0404278 A BRPI0404278 A BR PI0404278A BR PI0404278 A BRPI0404278 A BR PI0404278A BR PI0404278 A BRPI0404278 A BR PI0404278A
Authority
BR
Brazil
Prior art keywords
combustion chamber
concave surface
convex surfaces
piston
convex
Prior art date
Application number
BR0404278-6A
Other languages
English (en)
Inventor
Zhengbai Liu
Original Assignee
Int Engine Intellectual Prop
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 Int Engine Intellectual Prop filed Critical Int Engine Intellectual Prop
Publication of BRPI0404278A publication Critical patent/BRPI0404278A/pt

Links

Classifications

    • 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
    • F02B23/0672—Omega-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 center axis
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
    • 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)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

"CâMARA DE COMBUSTãO COM UMA SUPERFìCIE CÈNCAVA E TRêS SUPERFìCIES CONVEXAS". A presente invenção refere-se a um conjunto de câmara de combustão para uso em um pistão de um motor diesel que inclui uma câmara de combustão definida intersectando uma coroa do pistão, a câmara de combustão sendo definida por um superfície cóncava em cooperação com três superfícies convexas, superfícies adjacentes tendo junções uniformes diretas. Um pistão e um método de formação de uma câmara de combustão são ainda incluídos.
BR0404278-6A 2003-09-29 2004-09-29 Câmara de combustão com uma superfìcie cÈncava e três superfìcies convexas BRPI0404278A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/673,977 US6945210B2 (en) 2003-09-29 2003-09-29 Combustion chamber with one concave surface and three convex surfaces

Publications (1)

Publication Number Publication Date
BRPI0404278A true BRPI0404278A (pt) 2005-05-24

Family

ID=34376754

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0404278-6A BRPI0404278A (pt) 2003-09-29 2004-09-29 Câmara de combustão com uma superfìcie cÈncava e três superfìcies convexas

Country Status (3)

Country Link
US (1) US6945210B2 (pt)
BR (1) BRPI0404278A (pt)
CA (1) CA2478218A1 (pt)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
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US7370627B2 (en) * 2004-03-01 2008-05-13 Electro-Motive Diesel, Inc. Optimized low emission two-stroke internal combustion diesel engine
WO2007090019A2 (en) * 2006-01-27 2007-08-09 Gm Global Technology Operations, Inc. Method and apparatus for a spark-ignited direct injection engine
US7389764B1 (en) * 2007-01-23 2008-06-24 Gm Global Technology Operations, Inc. Low emissions diesel piston
EP2003304B1 (de) * 2007-06-15 2013-04-24 Ford Global Technologies, LLC Kolben mit Kolbenmulde für eine Brennkraftmaschine und Verfahren zur Gemischbildung unter Verwendung einer Einspritzeinrichtung und eines derartigen Kolbens
FR2925604A1 (fr) * 2007-12-19 2009-06-26 Renault Sas Chambre de combustion pour moteur thermique a injection directe suralimente
US20100108044A1 (en) * 2008-11-06 2010-05-06 International Engine Intellectual Property Company, Llc Combustion Chamber with Double Convex Surfaces and Double Concave Surfaces
US9512779B2 (en) 2010-04-27 2016-12-06 Achates Power, Inc. Swirl-conserving combustion chamber construction for opposed-piston engines
JP5782109B2 (ja) 2010-04-27 2015-09-24 アカーテース パワー，インク． 対向ピストン式エンジン用の燃焼室構造
US10180115B2 (en) 2010-04-27 2019-01-15 Achates Power, Inc. Piston crown bowls defining combustion chamber constructions in opposed-piston engines
US8820294B2 (en) 2010-08-16 2014-09-02 Achates Power, Inc. Fuel injection spray patterns for opposed-piston engines
US9309807B2 (en) 2011-05-18 2016-04-12 Achates Power, Inc. Combustion chamber constructions for opposed-piston engines
US20130104848A1 (en) 2011-10-27 2013-05-02 Achates Power, Inc. Fuel Injection Strategies in Opposed-Piston Engines with Multiple Fuel Injectors
US8833327B2 (en) * 2011-12-28 2014-09-16 Cummins Intellectual Property, Inc. Piston and combustion chamber
US9359962B2 (en) 2012-04-25 2016-06-07 International Engine Intellectual Property Company, Llc Engine braking
US9211797B2 (en) 2013-11-07 2015-12-15 Achates Power, Inc. Combustion chamber construction with dual mixing regions for opposed-piston engines
US11519359B1 (en) * 2022-04-04 2022-12-06 Caterpillar Inc. Low compression natural gas engine piston bowl for improved combustion stability
US12146452B1 (en) * 2023-07-13 2024-11-19 Caterpillar Inc. Piston and engine system using same

Family Cites Families (17)

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Publication number Priority date Publication date Assignee Title
GB1560792A (en) * 1976-03-31 1980-02-13 Perkins Engines Ltd Pistons for internal combustion engines
DE2739419C2 (de) * 1976-09-02 1983-03-31 Kabushiki Kaisha Komatsu Seisakusho, Tokyo Brennraum im Kolben einer luftverdichtenden selbstzündenden Brennkraftmaschine
US4137873A (en) * 1977-10-11 1979-02-06 Caswell Sr Dwight A Variable compression ratio piston
US4270494A (en) * 1979-01-11 1981-06-02 General Motors Corporation Insulated oil cooled piston assembly
DE3237469C2 (de) * 1982-10-09 1984-08-09 Feldmühle AG, 4000 Düsseldorf Kolben mit einem Bauteil aus teilstabilisiertem Zirkonoxid
EP0172253B1 (en) * 1984-02-15 1989-03-15 Mitsubishi Jidosha Kogyo Kabushiki Kaisha Combustion chamber structure for diesel engines
CN1015395B (zh) * 1988-02-08 1992-02-05 胡国栋 柴油机直接喷射式燃烧室装置
US4883032A (en) * 1989-01-23 1989-11-28 Ford Motor Company In-cylinder control of particulates and nitric oxide for diesel engine
BR9204730A (pt) * 1992-12-23 1994-06-28 Metal Leve Sa Embolo com inserto de reforço
US5285755A (en) * 1993-03-08 1994-02-15 Chrysler Corporation Open chamber diesel engine having a piston with recesses therein
GB9605838D0 (en) * 1996-03-20 1996-05-22 Perkins Ltd A method for producing a piston for an internal combustion engine and a piston produced by the method
US5653204A (en) * 1996-05-21 1997-08-05 Caterpillar Inc. Piston assembly retaining device
BR9601835A (pt) * 1996-06-14 1998-09-29 Metal Leve Sa Embolo para motor de combustão interna
US5868112A (en) * 1996-12-19 1999-02-09 Cummins Engine Company, Inc. Deep angle injection nozzle and piston having complementary combustion bowl
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US6536404B2 (en) * 2001-07-23 2003-03-25 International Engine Intellectual Property Company, L.L.C. Piston having combustion chamber defined in the crown
US6637402B2 (en) * 2001-08-06 2003-10-28 International Engine Intellectual Property Company, Llc Piston having combustion chamber defined in the crown

Also Published As

Publication number Publication date
US6945210B2 (en) 2005-09-20
CA2478218A1 (en) 2005-03-29
US20050066929A1 (en) 2005-03-31

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal acc. article 33 of ipl - extension of time limit for request of examination expired