BR0211398A - Combustion chamber - Google Patents

Combustion chamber

Info

Publication number
BR0211398A
BR0211398A BR0211398-8A BR0211398A BR0211398A BR 0211398 A BR0211398 A BR 0211398A BR 0211398 A BR0211398 A BR 0211398A BR 0211398 A BR0211398 A BR 0211398A
Authority
BR
Brazil
Prior art keywords
combustion chamber
piston
central portion
central
sphere
Prior art date
Application number
BR0211398-8A
Other languages
Portuguese (pt)
Inventor
Zhengbai Liu
Xinqun Gui
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
Priority claimed from US09/911,265 external-priority patent/US6536404B2/en
Priority claimed from US09/922,972 external-priority patent/US6637402B2/en
Priority claimed from US09/933,407 external-priority patent/US6513476B1/en
Priority claimed from US10/057,545 external-priority patent/US6732702B2/en
Priority claimed from US10/060,663 external-priority patent/US6601561B1/en
Application filed by Int Engine Intellectual Prop filed Critical Int Engine Intellectual Prop
Publication of BR0211398A publication Critical patent/BR0211398A/en

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
    • F02B31/00—Modifying induction systems for imparting a rotation to the charge in the cylinder
    • 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

Abstract

"CâMARA DE COMBUSTãO". A presente invenção refere-se a um conjunto de câmara de combustão para utilização em um motor a diesel que inclui uma câmara de combustão (14) sendo definida dentro de uma coroa (12) de um pistão (10), o pistão (10) tendo um eixo geométrico central (16, 18, 518, 524), a câmara de combustão (14) tendo uma porção central que define uma coluna, a porção central sendo definida pelo menos em parte por uma porção de uma esfera, a esfera tendo um raio, a origem do raio ficando sobre o eixo geométrico central do pistão (16, 18, 518, 524) e a câmara de combustão (14) ainda tendo uma pluralidade de superfícies curvas tendo transições tangenciais suaves entre as superfícies lisas adjacentes, as superfícies lisas incluindo a porção central esférica e pelo menos uma superfície anular, a câmara de combustão (14) sendo simétrica com relação a um eixo geométrico longitudinal (16, 216, 316, 416) da câmara de combustão. Um pistão (10) que incorpora a câmara de combustão (14) acima mencionada e um método para formar a câmara de combustão (14) são ainda incluídos."COMBUSTION CHAMBER". The present invention relates to a combustion chamber assembly for use in a diesel engine that includes a combustion chamber (14) being defined within a crown (12) of a piston (10), the piston (10) having a central geometrical axis (16, 18, 518, 524), the combustion chamber (14) having a central portion defining a column, the central portion being defined at least in part by a portion of a sphere, the sphere having a radius, the origin of the radius being on the central geometric axis of the piston (16, 18, 518, 524) and the combustion chamber (14) still having a plurality of curved surfaces having smooth tangential transitions between adjacent smooth surfaces, the smooth surfaces including the spherical central portion and at least one annular surface, the combustion chamber (14) being symmetrical with respect to a longitudinal geometrical axis (16, 216, 316, 416) of the combustion chamber. A piston (10) incorporating the aforementioned combustion chamber (14) and a method for forming the combustion chamber (14) are further included.

BR0211398-8A 2001-07-23 2002-07-18 Combustion chamber BR0211398A (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US09/911,265 US6536404B2 (en) 2001-07-23 2001-07-23 Piston having combustion chamber defined in the crown
US09/922,972 US6637402B2 (en) 2001-08-06 2001-08-06 Piston having combustion chamber defined in the crown
US09/933,407 US6513476B1 (en) 2001-08-20 2001-08-20 Piston having combustion chamber defined in the crown
US10/057,545 US6732702B2 (en) 2002-01-23 2002-01-23 Combustion chamber
US10/060,663 US6601561B1 (en) 2002-01-30 2002-01-30 Combustion chamber
PCT/US2002/022765 WO2003010423A1 (en) 2001-07-23 2002-07-18 Combustion chamber

Publications (1)

Publication Number Publication Date
BR0211398A true BR0211398A (en) 2004-08-17

Family

ID=27535398

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0211398-8A BR0211398A (en) 2001-07-23 2002-07-18 Combustion chamber

Country Status (8)

Country Link
EP (1) EP1409858A4 (en)
JP (1) JP2004536992A (en)
KR (1) KR20040021645A (en)
CN (1) CN1302200C (en)
BR (1) BR0211398A (en)
CA (1) CA2454719A1 (en)
MX (1) MXPA04000642A (en)
WO (1) WO2003010423A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005058130A1 (en) * 2005-11-30 2007-06-06 Valeo Schalter Und Sensoren Gmbh Warning system for a motor vehicle
US7389764B1 (en) * 2007-01-23 2008-06-24 Gm Global Technology Operations, Inc. Low emissions diesel piston
EP2003303B1 (en) * 2007-06-15 2013-03-13 Ford Global Technologies, LLC Piston with a piston bowl for a combustion engine and method for fuel-mixture generation using an injection device and such a piston
US7431012B1 (en) * 2007-10-01 2008-10-07 General Electric Company Diesel combustion system with re-entrant piston bowl
JP5338268B2 (en) 2008-11-18 2013-11-13 マツダ株式会社 Diesel engine combustion chamber structure
US8813713B2 (en) * 2010-12-22 2014-08-26 Caterpillar Inc. Piston with cylindrical wall
US9695723B2 (en) * 2014-01-15 2017-07-04 General Electric Company Combustion system including a piston crown and fuel injector
JP2021011843A (en) * 2019-07-05 2021-02-04 三菱重工エンジン＆ターボチャージャ株式会社 Piston of internal combustion engine and internal combustion engine
CN112324556B (en) * 2020-11-09 2022-01-25 赵伟 Lip jet combustion system of direct-injection diesel engine
CN112432204B (en) * 2020-12-04 2022-04-22 中国人民解放军国防科技大学 Reentrant structure and scramjet that can internal flow drag reduction

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB289273A (en) * 1927-06-07 1928-04-26 Lorenz Konrad Braren Improvements in or relating to internal combustion engines
CH420723A (en) * 1963-02-28 1966-09-15 Tatra Np Internal combustion engine with a multi-hole nozzle
JPS58501332A (en) * 1981-08-13 1983-08-11 マツセイ−フア−ガソン−パ−キンス　リミテツド internal combustion engine
JP2727808B2 (en) * 1991-08-23 1998-03-18 いすゞ自動車株式会社 Combustion chamber of a direct injection internal combustion engine
DE4326978A1 (en) * 1993-08-11 1995-02-16 Alcan Gmbh Pistons for internal combustion engines, in particular for diesel engines
JP3538916B2 (en) * 1994-11-07 2004-06-14 マツダ株式会社 Combustion chamber structure of direct injection engine
DE19707873A1 (en) * 1997-02-27 1998-09-10 Hatz Motoren Injector and combustion method for an internal combustion engine
JPH11182311A (en) * 1997-12-16 1999-07-06 Mitsubishi Motors Corp Pressure accumulation type fuel injection device
JPH11210467A (en) * 1998-01-23 1999-08-03 Kubota Corp Reentrant type combustion chamber for diesel engine
JP3751462B2 (en) * 1998-03-27 2006-03-01 株式会社豊田中央研究所 Direct injection diesel engine
JP2000274247A (en) * 1999-03-19 2000-10-03 Toyota Motor Corp Diesel engine
JP4158271B2 (en) * 1999-03-23 2008-10-01 マツダ株式会社 Engine piston structure
JP2000352316A (en) * 1999-06-09 2000-12-19 Toyota Central Res & Dev Lab Inc Combustion chamber in direct injection compression ignition engine
CN2388358Y (en) * 1999-07-23 2000-07-19 广西玉柴机器股份有限公司 Piston ocmbustion chamber for YC 61122LQ diesel engine
JP4682452B2 (en) * 2001-06-06 2011-05-11 マツダ株式会社 Fuel injection system for diesel engine

Also Published As

Publication number Publication date
CN1302200C (en) 2007-02-28
KR20040021645A (en) 2004-03-10
EP1409858A1 (en) 2004-04-21
CA2454719A1 (en) 2003-02-06
MXPA04000642A (en) 2004-04-21
EP1409858A4 (en) 2004-10-06
WO2003010423A1 (en) 2003-02-06
JP2004536992A (en) 2004-12-09
CN1556894A (en) 2004-12-22

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 6A,7A E 8A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 DA RPI 2060 DE 29/06/2010.