FUEL INJECTION APPARATUS - TOYOTA MOTOR CO LTD

Title:

FUEL INJECTION APPARATUS

Document Type and Number:

WIPO Patent Application WO/2004/007947

Kind Code:

A1

Abstract:

A fuel injection apparatus capable of injecting fuel by very high pressure, provides excellent combustion and exhaust characteristics, and provides fuel injection at a desired fuel injection pattern. In a fuel injection apparatus (30), a projection (61) is provided on the tip section of a piston control valve (60) provided on a pressure intensifier (54), and substantial opening area of a fuel flow passage (57) to a cylinder (56) can be varied as the piston control valve (60) moves, so that an inflow amount of fuel oil flowing into the cylinder (56) can be controlled (controlled by orifice) by the piston control valve (60). Because of the structure above, an injection rate and injection pressure of fuel that is injected from a fuel injection nozzle (34) can be controlled, and a fuel injection pattern with very high degree of freedom can be achieved.

Inventors:

KAWAMURA KIYOMI (JP)
HOTTA YOSHIHIRO (JP)
WAKISAKA YOSHIFUMI (JP)
NAKAKITA KIYOMI (JP)

Application Number:

PCT/JP2003/008856

Publication Date:

January 22, 2004

Filing Date:

July 11, 2003

Export Citation:

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Assignee:

TOYOTA MOTOR CO LTD (JP)
KAWAMURA KIYOMI (JP)
HOTTA YOSHIHIRO (JP)
WAKISAKA YOSHIFUMI (JP)
NAKAKITA KIYOMI (JP)

International Classes:

F02M47/00; F02M45/00; F02M45/04; F02M47/02; F02M51/00; F02M55/00; F02M55/02; F02M57/02; F02M59/10; F02M59/32; F02M59/36; F02M59/46; F02M63/02; F02M39/00; F02M59/34; F02M63/00; (IPC1-7): F02M47/00

Domestic Patent References:

WO2002014681A1	2002-02-21
WO2000055496A1	2000-09-21

Foreign References:

US5622152A	1997-04-22
JPS61149770U	1986-09-16
JPS57193060U	1982-12-07
JPS55106360U	1980-07-25
US4271807A	1981-06-09
JP2002364484A	2002-12-18
EP1284357A1	2003-02-19
JPS61149770U	1986-09-16

Other References: