DUAL CIRCUIT FUEL INJECTION INTERNAL COMBUSTION ENGINE

Title:

DUAL CIRCUIT FUEL INJECTION INTERNAL COMBUSTION ENGINE

Document Type and Number:

WIPO Patent Application WO/2006/100938

Kind Code:

A1

Abstract:

A dual circuit fuel injection internal combustion engine capable of maintaining a fuel stagnated in a cylinder injection delivery pipe in a steady state. The internal combustion engine comprises cylinder injection injectors (15) and intake pipe injection injectors (16), a control means (35) changing the jetting ratio of the injectors (16) to (15), a fuel pressure detection means (36) and a fuel temperature detection means (37) detecting the pressure and temperature of the fuel in the cylinder injection delivery pipe (23), and fuel regulating means (43) and (44) regulating the pressure and temperature of the fuel in the cylinder injection delivery pipe (23). When the jetting ratio of the intake pipe injection injectors (16) to the cylinder injection cylinders (15) is high and at least one of the pressure and temperature of the fuel in the cylinder injection delivery pipe (23) exceeds a prescribed value, the control means (35) operates the fuel regulating means (43) and (44).

Inventors:

MIYAZAKI KAZUMA (JP)
SAKAI MITSUTO (JP)
IWAMI YUTAKA (JP)
NISHIGAKI MASATO (JP)
SHIMOJIKKOKU YUKIO (JP)

Application Number:

PCT/JP2006/304711

Publication Date:

September 28, 2006

Filing Date:

March 10, 2006

Export Citation:

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Assignee:

TOYOTA MOTOR CO LTD (JP)
YAMAHA MOTOR CO LTD (JP)
MIYAZAKI KAZUMA (JP)
SAKAI MITSUTO (JP)
IWAMI YUTAKA (JP)
NISHIGAKI MASATO (JP)
SHIMOJIKKOKU YUKIO (JP)

International Classes:

F02M63/00; F02M37/00; F02M37/20; F02M55/02; F02M69/00

Foreign References:

JP2003074441A	2003-03-12
JPH1054318A	1998-02-24
JPH0494434A	1992-03-26
JPH1054318A	1998-02-24

Other References: