JPS56129716A - Direct-injection type diesel engine, combustion-controlled with swirl produced by groove - Google Patents

Direct-injection type diesel engine, combustion-controlled with swirl produced by groove

Info

Publication number
JPS56129716A
JPS56129716A JP3436080A JP3436080A JPS56129716A JP S56129716 A JPS56129716 A JP S56129716A JP 3436080 A JP3436080 A JP 3436080A JP 3436080 A JP3436080 A JP 3436080A JP S56129716 A JPS56129716 A JP S56129716A
Authority
JP
Japan
Prior art keywords
piston
combustion chamber
circumference
grooves
groove
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.)
Pending
Application number
JP3436080A
Other languages
Japanese (ja)
Inventor
Yasuhiro Hori
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.)
Ship Research Institute
Original Assignee
Ship Research Institute
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 Ship Research Institute filed Critical Ship Research Institute
Priority to JP3436080A priority Critical patent/JPS56129716A/en
Publication of JPS56129716A publication Critical patent/JPS56129716A/en
Pending legal-status Critical Current

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
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/14—Direct injection into combustion chamber

Landscapes

  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

PURPOSE: To improve the engine output and the fuel consumption and at the same time suppress the generation of harmful exhaust gas component by a method wherein the strong swirl, which is produced by grooves provided at the circumference of a dish-shape main combustion chamber formed at the top of a piston, is used with squash and countersquash to control combustion.
CONSTITUTION: A plurality of grooves 4 are formed at the circumference of the dish-shaped main combustion chamber 2 provided at the top of the piston 1 with a certain angle to the direction of the radius at the intersecdion of the groove with the circle composed of the circumference of the combustion chamber. When the piston is raised near the top dead center, the squash produced between the flat part 3 of the piston and a cylinder head is given strong swirl due to these grooves. And according to this thrusting-in swirl flow, the fuel injected from an injector nozzle and the air in the main combustion chamber 2 are fully stirred up and mixed with each other and burnt successively at the portion where the mixing is completed.
COPYRIGHT: (C)1981,JPO&Japio
JP3436080A 1980-03-18 1980-03-18 Direct-injection type diesel engine, combustion-controlled with swirl produced by groove Pending JPS56129716A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3436080A JPS56129716A (en) 1980-03-18 1980-03-18 Direct-injection type diesel engine, combustion-controlled with swirl produced by groove

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3436080A JPS56129716A (en) 1980-03-18 1980-03-18 Direct-injection type diesel engine, combustion-controlled with swirl produced by groove

Publications (1)

Publication Number Publication Date
JPS56129716A true JPS56129716A (en) 1981-10-12

Family

ID=12411988

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3436080A Pending JPS56129716A (en) 1980-03-18 1980-03-18 Direct-injection type diesel engine, combustion-controlled with swirl produced by groove

Country Status (1)

Country Link
JP (1) JPS56129716A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58146033U (en) * 1982-03-25 1983-10-01 マツダ株式会社 Diesel engine combustion chamber structure
JPS63113113A (en) * 1986-10-31 1988-05-18 Matsukichi Haruyama Piston structure of internal combustion engine
US5065715A (en) * 1990-02-07 1991-11-19 The University Of British Columbia Squish jet combustion chamber
US5103784A (en) * 1990-02-07 1992-04-14 The Univeristy Of British Columbia Squish jet combustion chamber
KR20020021433A (en) * 2000-09-15 2002-03-21 이계안 Piston of diesel engine
KR20030043373A (en) * 2001-11-28 2003-06-02 현대자동차주식회사 Piston for diesel engine
CN100392230C (en) * 2003-08-19 2008-06-04 扬动股份有限公司 IC engine piston for improving air availability
US7581526B2 (en) 2005-09-01 2009-09-01 Harry V. Lehmann Device and method to increase fuel burn efficiency in internal combustion engines

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5043305A (en) * 1973-08-21 1975-04-19
JPS5611324B1 (en) * 1969-03-07 1981-03-13

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5611324B1 (en) * 1969-03-07 1981-03-13
JPS5043305A (en) * 1973-08-21 1975-04-19

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58146033U (en) * 1982-03-25 1983-10-01 マツダ株式会社 Diesel engine combustion chamber structure
JPS63113113A (en) * 1986-10-31 1988-05-18 Matsukichi Haruyama Piston structure of internal combustion engine
US5065715A (en) * 1990-02-07 1991-11-19 The University Of British Columbia Squish jet combustion chamber
US5103784A (en) * 1990-02-07 1992-04-14 The Univeristy Of British Columbia Squish jet combustion chamber
KR20020021433A (en) * 2000-09-15 2002-03-21 이계안 Piston of diesel engine
KR20030043373A (en) * 2001-11-28 2003-06-02 현대자동차주식회사 Piston for diesel engine
CN100392230C (en) * 2003-08-19 2008-06-04 扬动股份有限公司 IC engine piston for improving air availability
US7581526B2 (en) 2005-09-01 2009-09-01 Harry V. Lehmann Device and method to increase fuel burn efficiency in internal combustion engines

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