FUEL SUPPLY DEVICE, AUTOMOBILE HAVING THE FUEL SUPPLY DEVICE, AND FUEL SUPPLY METHOD

WIPO Patent Application WO/2007/083448

A1

An automobile (20) has a high-pressure pump (64) for further pressurizing fuel in a fuel pipe (63) and supplying it to a delivery pipe (66) to which an in-cylinder fuel injection valve (25) is connected, and also has a solenoid-operated relief valve (67) capable of reducing the pressure of the pressurized fuel in the delivery pipe (66) by utilizing the atmospheric pressure. When the atmospheric pressure detected by an atmospheric pressure sensor (89) is equal to or higher than a threshold when an engine (22) is stopped, the relief valve (67) is opened for an opening time corresponding to the atmospheric pressure and the fuel pressure to reduce the fuel pressure. When the atmospheric pressure is lower than the threshold, the relief valve (67) is not opened. The reduction of the fuel pressure in the delivery pipe (66) is restricted by using the atmospheric pressure correlated with whether there is an occurrence of air bubbles in the delivery pipe (66).

TOMATSURI MAMORU (JP)
INOUE TOSHIO (JP)
ANDO DAIGO (JP)
HASEGAWA KEIKO (JP)
FUKUI KEITA (JP)

PCT/JP2006/323900

July 26, 2007

November 30, 2006

Click for automatic bibliography generation  

TOYOTA MOTOR CO LTD (JP)
TOMATSURI MAMORU (JP)
INOUE TOSHIO (JP)
ANDO DAIGO (JP)
HASEGAWA KEIKO (JP)
FUKUI KEITA (JP)

F02M37/20

JP2004108223A	2004-04-08
JPH0299755A	1990-04-11
JPS6117473U	1986-01-31
JPS6350661A	1988-03-03
JPH02119669A	1990-05-07
JP3114530B2	2000-12-04
JPH0512643U	1993-02-19

ITEC INTERNATIONAL PATENT FIRM (3-3 Uchisaiwai-cho 1-chom, Chiyoda-ku Tokyo 11, JP)

View/Download PDF      PDF Help

Previous Patent: SPEED CONTROLLER FOR PORTABLE ELECTRIC CUTTING TOOL

Next Patent: NONVOLATILE STORAGE, NONVOLATILE STORAGE SYSTEM, AND METHOD OF MANAGING NONVOLATILE STORAGE FAILURE