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)
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:
Assignee:
TOYOTA MOTOR CO LTD (JP)
KAWAMURA KIYOMI (JP)
HOTTA YOSHIHIRO (JP)
WAKISAKA YOSHIFUMI (JP)
NAKAKITA KIYOMI (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:
See also references of EP 1522718A4
Attorney, Agent or Firm:
Nakajima, Jun (NAKAJIMA & KATO Seventh Floor, HK-Shinjuku
Bldg., 3-17, Shinjuku 4-chom, Shinjuku-ku Tokyo, JP)
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