DIRECT INJECTION DIESEL ENGINE

Title:

DIRECT INJECTION DIESEL ENGINE

Document Type and Number:

WIPO Patent Application WO/2006/114946

Kind Code:

A1

Abstract:

A direct injection diesel engine having a piston (11) with a cavity (21) formed by a recess in the upper surface of the piston and a fuel injection nozzle (12) for injecting fuel into the cavity (21) of the piston. Sets of injection holes are provided in the fuel injection nozzle (12). Each set of the injection holes is composed of injection holes (32), and the direction of the openings of the injection holes (32) of each set intersect at least the axis of the fuel injection nozzle (12) at a plurality of points. The shape of an opening of a combustion chamber of the piston (11) is formed as a polygon having five or more sides. The output of the diesel engine is increased, noise is reduced, and the amount of hydrocarbon in exhaust gases is reduced.

Inventors:

TAKAHASHI TAKESHI
KAWABE TAKAO
CHINO SEIJI
YOSHIZUKA TOORU

Application Number:

PCT/JP2006/304929

Publication Date:

November 02, 2006

Filing Date:

March 13, 2006

Export Citation:

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Assignee:

YANMAR CO LTD (JP)
TAKAHASHI TAKESHI
KAWABE TAKAO
CHINO SEIJI
YOSHIZUKA TOORU

International Classes:

F02F3/26; F02B23/06; F02M61/14; F02M61/18

Foreign References:

JP2003214297A	2003-07-30
JPH03202618A	1991-09-04
JPH02233822A	1990-09-17
JPS58102723U	1983-07-13
JPS61110835U	1986-07-14
JPS63140135U	1988-09-14
JP2002285850A	2002-10-03
JPH09217626A	1997-08-19
JPH057502U	1993-02-02
JP2001165017A	2001-06-19
JP2560337B2	1996-12-04
JPH0749032A	1995-02-21
JP2002285848A	2002-10-03

Other References: