Fuel feed system for an internal combustion engine

Details Fuel feed system for an internal combustion engine Fuel feed system for an internal combustion engine

F - Mech Eng,Light,Heat,Weapons

02

D

341/38.11

F02D 43/00 (2006.01)

Patent

CA 1186031

ABSTRACT OF THE DISCLOSURE A fuel feed system of a fuel priority type for an internal combustion engine. The fuel feed system of the invention has a small auxiliary control unit with no calculation function in addition to a main control unit. When the main control unit is out of order, it is changed over to the auxiliary control unit which ensures injection, for instance, at a constant air fuel ratio and in proportion to the degree of pressing of an accelerator pedal. Therefore, even when the main control unit is out of order, the driver can drive his vehicle safely to a service station, etc. without stopping the engine. When the main control unit is in a normal state, the main control unit performs engine air control (EAC) at a variable air fuel ratio in the whole range of operation.

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