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Patent Searching and Data


Title:
FUEL INJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/1992/008890
Kind Code:
A1
Abstract:
A fuel injection device capable of controlling a very small fuel injection flow rate at high speed and stably performing high-speed light-load operation. A main fuel path (36) branching from a fuel path (14) for setting up communication between a pressure chamber (13) and a nozzle (20) communicates with an escape path (26) through a solenoid valve device (30), whereby on-off operation of the solenoid valve device (30) controls a fuel injection flow rate and an injection timing. There is provided a valve stopper (40) in contact with a valve seat (33) provided at the forward end of a spool (32) of the solenoid valve device (30), whereby, during the light-load operation, the valve stopper (40) is pushed up toward the spool (32) by drive means (60, 61), to thereby reduce the stroke of the spool (32).

Inventors:
Yoshimitsu, Toshio
Application Number:
PCT/JP1991/001500
Publication Date:
May 29, 1992
Filing Date:
November 01, 1991
Export Citation:
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Assignee:
KABUSHIKI KAISHA KOMATSU SEISAKUSHO YOSHIMITSU, Toshio.
International Classes:
F02M51/00; F02M57/02; F02M59/36; F02M59/46; (IPC1-7): F02M47/00; F02M57/02
Foreign References:
JPS63150461A
JPS59194073A
JPH0235965A
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