Approach for reducing overheating of direct injection fuel...

Details Approach for reducing overheating of direct injection fuel... Approach for reducing overheating of direct injection fuel...

2011-01-11

2011-12-13

Wolfe, Jr., Willis (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C123S478000, C123S575000, C123S19800E, C701S114000

Reexamination Certificate

active

08078386

ABSTRACT:
A method of controlling fuel supplied to an engine is provided. In one example, a cylinder includes port and direct fuel injection. The method includes supplying a second fuel type from a second tank to the direct injector and supplying a first fuel type from a first tank to the port injector; and responsive to mis-fueling, supplying the first fuel type from the first tank to the direct injector. In response to receiving an indication of a mis-fuel, the direct fuel injector may be supplied with the second type of fuel from the second fuel storage tank. By supplying at least some fuel to the direct injector from a different source, fuel may be supplied to the DI fuel injector at various conditions to cool the DI fuel injector. In this way, overheating of the DI fuel injector may be reduced.

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