Eight-cylinder engine

Details Eight-cylinder engine Eight-cylinder engine

2008-05-06

2008-05-06

Wolfe, Jr., Willis R. (Department: 3747)

Internal-combustion engines

Charge forming device

Fuel injection system

C123S054700

Reexamination Certificate

active

07367323

ABSTRACT:
An eight-cylinder engine including fuel injection valves provided for each of the eight cylinders. A first valve drive unit for driving four of the eight fuel injection valves to open and close by energizing the four fuel injection valves and a second valve drive unit for driving the other four fuel injection valves to open and close by energizing the second-mentioned four fuel injection valves. Both of the valve drive units drive the fuel injection valves so that combustion and expansion strokes occur at equal intervals, thus allowing for a sufficient charging time for each valve drive unit. For example, the first valve drive unit energizes those fuel injection valves which are provided on a first, fourth, sixth and seventh cylinders, and the second valve drive unit energizes those fuel injection valves which are provided on a second, third, fifth, and eighth cylinders.

REFERENCES:
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patent: 2004/0030488 (2004-02-01), Moessinger et al.
patent: A-2001-295685 (2001-10-01), None
patent: A-2003-056386 (2003-02-01), None

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