Title:
STORAGE TYPE FUEL INJECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/1997/008452
Kind Code:
A1
Abstract:
A storage type fuel injection device which comprises a needle valve (6) for closing an injection nozzle (11) having a nozzle hole (14) formed at a leading end thereof, a balance chamber (5) formed in casing (2) so as to impart a fuel pressure to a head portion of the needle valve (6), a supply path including a slit (10) for supplying fuel from a fuel supply port (19) to the balance chamber (5), a discharge path (20) which is an orifice for discharging fuel from the balance chamber (5), and a solenoid valve (22) for opening and closing the discharge path (20), wherein the lift of a valve disc (26) of the solenoid valve (22) is controlled by a lift control means comprising a stopper (28) the position of which is controlled by a lift control mechanism (23), wherein the open area of the discharge path (20) which is an orifice is increased and/or decreased in accordance with the lift of the valve disc (26), and wherein the lift of the needle valve (6) is set in such a manner that the open area of the slit (10) facing the balance chamber (5) is increased and/or decreased according to the flow rate of fuel passing through the discharge path (20), whereby the opening of the injection nozzle (11) is increased and/or decreased.
Inventors:
FUSEYA TSUTOMU (JP)
Application Number:
PCT/JP1996/002218
Publication Date:
March 06, 1997
Filing Date:
August 06, 1996
Export Citation:
Assignee:
ISUZU MOTORS LTD (JP)
FUSEYA TSUTOMU (JP)
FUSEYA TSUTOMU (JP)
International Classes:
F02M45/08; F02M45/12; F02M47/02; F02M59/46; F02M61/04; F02M61/06; F02M61/16; F02M61/18; F02M63/00; (IPC1-7): F02M47/00; F02M61/18
Foreign References:
| JPH03964A | 1991-01-07 | |||
| JPH03965A | 1991-01-07 | |||
| JPH0436064A | 1992-02-06 | |||
| JPH0256854U | 1990-04-24 | |||
| JPH0711996A | 1995-01-13 |
Other References:
See also references of EP 0789142A4
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