WO2009075054A1 - Reciprocal engine - Google Patents

Reciprocal engine Download PDF

Info

Publication number
WO2009075054A1
WO2009075054A1 PCT/JP2008/003180 JP2008003180W WO2009075054A1 WO 2009075054 A1 WO2009075054 A1 WO 2009075054A1 JP 2008003180 W JP2008003180 W JP 2008003180W WO 2009075054 A1 WO2009075054 A1 WO 2009075054A1
Authority
WO
WIPO (PCT)
Prior art keywords
combustion chamber
reciprocal engine
combustion
internal pressure
homogeneous charge
Prior art date
Application number
PCT/JP2008/003180
Other languages
French (fr)
Japanese (ja)
Inventor
Yoichi Marutani
Mamoru Kurashina
Original Assignee
Ihi Corporation
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 Ihi Corporation filed Critical Ihi Corporation
Publication of WO2009075054A1 publication Critical patent/WO2009075054A1/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
    • F02B75/00—Other engines
    • F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
    • F02B75/044—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of an adjustable piston length
    • 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
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/12—Engines characterised by fuel-air mixture compression with compression ignition
    • 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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/14—Direct injection into combustion chamber

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)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

Provided is a reciprocal engine which can reduce particulates by employing the homogeneous charge compression ignition method and activating initial combustion by means of high pressure ignition. The reciprocal engine comprises a piston (3) which is provided with a cylinder pressure rise relaxing means (11) capable of expanding the volume of a combustion chamber (4) of a cylinder (2) when an internal pressure of the combustion chamber (4) rises over a set level, thereby suppressing sharp rise of internal pressure of the combustion chamber at the initial stage of combustion and lowering the flame temperature. This enables reduction of NOx and prevention of occurrence of knocking, thereby realizing a reciprocal engine with an expanded range of use of the homogeneous charge compression ignition which is conventionally limited to use under low load.
PCT/JP2008/003180 2007-12-13 2008-11-05 Reciprocal engine WO2009075054A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007322313A JP2009144595A (en) 2007-12-13 2007-12-13 Reciprocal engine
JP2007-322313 2007-12-13

Publications (1)

Publication Number Publication Date
WO2009075054A1 true WO2009075054A1 (en) 2009-06-18

Family

ID=40755304

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/003180 WO2009075054A1 (en) 2007-12-13 2008-11-05 Reciprocal engine

Country Status (2)

Country Link
JP (1) JP2009144595A (en)
WO (1) WO2009075054A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011220246A (en) * 2010-04-09 2011-11-04 Hatamura Engine Research Office Engine combustion control device
JP5772834B2 (en) * 2010-12-27 2015-09-02 三菱自動車工業株式会社 piston

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0617665A (en) * 1991-03-28 1994-01-25 Masayuki Kiyono Piston keeping combustion pressure constant
JPH0921350A (en) * 1995-07-06 1997-01-21 Nissan Diesel Motor Co Ltd Piston for internal combustion engine
JP2001193510A (en) * 2000-01-07 2001-07-17 Osaka Gas Co Ltd Piston and engine provided therewith

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0617665A (en) * 1991-03-28 1994-01-25 Masayuki Kiyono Piston keeping combustion pressure constant
JPH0921350A (en) * 1995-07-06 1997-01-21 Nissan Diesel Motor Co Ltd Piston for internal combustion engine
JP2001193510A (en) * 2000-01-07 2001-07-17 Osaka Gas Co Ltd Piston and engine provided therewith

Also Published As

Publication number Publication date
JP2009144595A (en) 2009-07-02

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