JPS5629018A - Direct injection type combustion chamber for diesel engine - Google Patents

Direct injection type combustion chamber for diesel engine

Info

Publication number
JPS5629018A
JPS5629018A JP10470879A JP10470879A JPS5629018A JP S5629018 A JPS5629018 A JP S5629018A JP 10470879 A JP10470879 A JP 10470879A JP 10470879 A JP10470879 A JP 10470879A JP S5629018 A JPS5629018 A JP S5629018A
Authority
JP
Japan
Prior art keywords
cavity
nozzle
side area
contraction
combustion chamber
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.)
Granted
Application number
JP10470879A
Other languages
Japanese (ja)
Other versions
JPS6027809B2 (en
Inventor
Isamu Kubomoto
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP10470879A priority Critical patent/JPS6027809B2/en
Publication of JPS5629018A publication Critical patent/JPS5629018A/en
Publication of JPS6027809B2 publication Critical patent/JPS6027809B2/en
Expired 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 facilitate combustion of a mixture by contracting the entrance of a cavity in the upper face of a piston and making up the contraction in such a configuration that the side area in the vicinity of a fuel injection nozzle is circular and other side area apart from it is square on the plane.
CONSTITUTION: A fuel injection nozzle 6 is provided eccentrically with tespect to the center of the cavity 5 shaped by depressing the area on the top of a piston 2. The entrance of the cavity 5 is contracted. The contraction 7 shaped as above exhibits such a plane configuration that the side area 7a close to a nozzle 6 is circular and is suquare other side area 7b including corners 7c, 7c in the vicinity of the point to which an injection hole of the nozzle is oriented. As a whole, the contraction is outlined in the form of a combination of a cemicircular and a semisquare. Although the nozzle is eccentric with respect to the cavity, a uniform mixture can be formed and a powerful eddy may be retained inside the cavity so that the combustion state can be improved.
COPYRIGHT: (C)1981,JPO&Japio
JP10470879A 1979-08-16 1979-08-16 Direct injection combustion chamber of diesel engine Expired JPS6027809B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10470879A JPS6027809B2 (en) 1979-08-16 1979-08-16 Direct injection combustion chamber of diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10470879A JPS6027809B2 (en) 1979-08-16 1979-08-16 Direct injection combustion chamber of diesel engine

Publications (2)

Publication Number Publication Date
JPS5629018A true JPS5629018A (en) 1981-03-23
JPS6027809B2 JPS6027809B2 (en) 1985-07-01

Family

ID=14387976

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10470879A Expired JPS6027809B2 (en) 1979-08-16 1979-08-16 Direct injection combustion chamber of diesel engine

Country Status (1)

Country Link
JP (1) JPS6027809B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5968128U (en) * 1982-10-29 1984-05-09 いすゞ自動車株式会社 Combustion chamber structure of direct injection diesel engine
JPS5968127U (en) * 1982-10-29 1984-05-09 いすゞ自動車株式会社 Combustion chamber structure of direct injection diesel engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5968128U (en) * 1982-10-29 1984-05-09 いすゞ自動車株式会社 Combustion chamber structure of direct injection diesel engine
JPS5968127U (en) * 1982-10-29 1984-05-09 いすゞ自動車株式会社 Combustion chamber structure of direct injection diesel engine

Also Published As

Publication number Publication date
JPS6027809B2 (en) 1985-07-01

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