ACCUMULATING FUEL INJECTOR

Title:

ACCUMULATING FUEL INJECTOR

Document Type and Number:

WIPO Patent Application WO/2003/002866

Kind Code:

A1

Abstract:

An accumulating fuel injector, wherein, when an engine is stopped, a pump control valve installed in a high−pressure fuel pump is controlled so as to be fully closed so that a common rail pressure is not increased excessively when an engine speed (NE) is equal to or higher than a specified value &agr , and opened when the engine speed (NE) lowers to the specified value &agr , wherein, since the high−pressure fuel pump does not force−feed fuel though sucks the fuel, a specified amount of fuel is accumulated in the pump, whereby, since the pump can force−feed the fuel accumulated in the pump to the common rail when the engine is started next time, the force−feeding of air at the beginning of the start can be prevented, a fuel pressure necessary for the start of the engine can be provided in short time, and a time required for starting can be reduced.

Inventors:

KATO AKIRA (JP)
SUGIYAMA TATSUMASA (JP)

Application Number:

PCT/JP2002/005744

Publication Date:

January 09, 2003

Filing Date:

June 10, 2002

Export Citation:

Click for automatic bibliography generation Help

Assignee:

DENSO CORP (JP)
TOYOTA MOTOR CO LTD (JP)
KATO AKIRA (JP)
SUGIYAMA TATSUMASA (JP)

International Classes:

F02D17/00; F02D41/04; F02D41/06; F02D41/30; F02D41/38; F02M63/00; F02D45/00; F02M59/42; F02M63/02; (IPC1-7): F02M51/00; F02M59/42; F02M59/44; F02M47/00

Foreign References:

EP0902181A2	1999-03-17
JPH09166061A	1997-06-24
JPH07103097A	1995-04-18
EP0886058A2	1998-12-23
EP0902181A2	1999-03-17

Other References: